July 8 July 9 July 10 July 11 Location...July 8 July 9 July 10 July 11 Location Registration...

July 8 July 9 July 10 July 11 Location

Registration 08:00-19:00 07:30-19:00 08:00-19:00 08:00-16:00 Lobby

Opening 08:30-08:45 Liao Ning Ballroom, 8F

Plenary Session 08:45-12:15 Liao Ning Ballroom, 8F

Technical Sessions 13:30-17:3009:00-12:00 13:30-17:30

09:00-12:00 13:30-17:30

7F

Poster Session 15:30-17:30 Corridor, 8F

Welcome Reception 17:30-19:30 Liao Ning Ballroom, 8F

Banquet and Award Ceremony 18:00-21:00 Liao Ning Ballroom, 8F

微纳光学制造培训班09:00-11:00 13:00-17:00

Yingkou, 7F

光电芯片产业高峰论坛 14:00-17:00 Benxi, 7F

“论文图像处理与技巧”讲座 19:00-21:00 Yingkou, 7F

英文科技论文写作培训 19:00-21:00 Benxi, 7F

Meet CLP's Editors 16:00-17:30 Corridor, 8F

Table Tennis Game 18:00-21:00 18:00-21:00 Institute of Physics

Badminton Game 18:00-21:00 18:00-21:00 Beihang University

Program at a glance

Contents

Committee ··························································································· I

VI

III

1

II

IX

IV

31

Sponsors ·····························································································

Acknowledgment ··················································································

General Information ··············································································

Maps ···································································································

Special Events ·····················································································

Agenda of Sessions ··············································································

Abstracts of Sessions ···········································································

Plenary Session ·············································································· 31

55

109

139

35

84

69

119

149

45

102

75

130

159179

Session 8. Lasers and Nonlinear Optics ···········································

Session 4. Optical Design and Optical Precision Measurement ············

Session 12. Nano Photonics and 2D Optoelectronics ··························

Session 1. Photonic Integration and Optical Interconnect ····················

Session 9. Quantum Optics and Quantum Information Technology ·····

Session 5. Optical Communications and Networks ·····························

Session 13. Cavity Optomechanics ···················································

Session 2. Advanced Fiber Optics & Sensing Technology ···················

Session 10. Laser Micro-Nano Processing and Fabrication ··················

Session 6. Optical Imaging and Holography ·······································

Poster Session ···············································································

Session 3. Biomedical Photonics ······················································

Session 11. Microwave Photonics ·····················································

Session 7. Plasmonics and Metamaterials ········································

I

Committee

Hosts

The international society for optics and photonics

Technical Cosponsor

Conference Chairs

Technical Program Chairs

Local Chair

Bingkun Zhou

Chinese Laser Press Tsinghua UniversityInternational Center for Nano-optoelectronics

Tsinghua University, China

Xiaoyi BaoUniversity of Ottawa, Canada

Yidong HuangTsinghua University, China

Dieter BimbergTU Berlin, GermanyCIOMP, CAS, China

Cunzheng NingTsinghua University, China

Arizona State University, USA

Wolfgang OstenUniversity of Stuttgart, Germany

II

Sponsors

光研科技

2018新版中文字体为黑体加粗英文字体为Arial Bold

诺派激光

Diamond Sponsors

Gold Sponsors

Silver Sponsors

III

Acknowledgement

The Conference Committee would like to thank the following teams for attending CIOP 2018.

Huazhong University of Science and Technology

Shanghai Institute of Microsystem and Information Technology

North University of China

School of Physics, Shandong University

Optics Frontier—The 10th International Conference on Information Optics and Photonics (CIOP 2018) IV

General Information

Conference Venue: Liaoning International HotelAddress: No.2 A North 4th Ring Road West, Haidian District, Beijing P.R. China

Speaker PreparationTime of an oral talk will be 15 min, including Q & A. For all oral speakers, please arrive the session room 30 min before your talk to upload and check the PPT. The presentation language is English. No shows of the oral presentation will be recorded and these papers will not be published.

Poster PreparationAuthors are required to stand by their posters during the poster session for discussion. Please make sure to print your mobile tel. and email in the poster, because the conference staff will contact the winner of Best Poster Award, which will be selected on-site the poster session.

Poster session: 15:30-17:30, Tuesday, July 10Poster board size: 0.95 m (length) x 2.47 m (height), recommended poster size: 0.8m x 1.2 mSet-up time: 8:00-15:30, Tuesday, July 10 Poster presenters are responsible to remove their poster, the conference staff will not collect the posters left at the end of the poster session. No shows of the poster will be recorded and these papers will not be published.

Social Activities

Welcome ReceptionThe welcome reception of CIOP 2018 is open for all registered attendees. It will be held on Sunday, July 8. A ticket is provided within the badge. Location: Liao Ning Ballroom, 8th floor of Liaoning International HotelTime: 17:30-19:30

Banquet and Award CeremonyThe banquet and award ceremony of CIOP 2018 will be held on Tuesday, July 10. A ticket is provided within the badge of the regular registration type. Location: Liao Ning Ballroom, 8th floor of Liaoning International HotelTime: 18:00-21:00The following awards will be presented at the banquet:Best Paper Awards 3 winnersThe candidates will be selected from all contributed submissions, according to the review outcomes. The selection will be voted by all session chairs and technical program chairs.

Best Poster Awards 10 winnersThe winner will be selected by reviewers on-site the conference during the poster session.

2017 Editor-in-Chief Choice Award of Photonics Research 1 winner

2017 Editor-in-Chief Choice Award of Chinese Optics Letters 2 winners

2017 Editor-in-Chief Choice Award of Chinese Journal of Lasers 4 winners, sponsored by

2017 Editor-in-Chief Choice Award of Acta Optica Sinica 4 winners, sponsored by

“Dyna Sense” Badminton Game 3 winners, sponsored by

“CLP” Table Tennis Game 3 winners

Optics Frontier—The 10th International Conference on Information Optics and Photonics (CIOP 2018) V

Special acknowledgement for the 10 hosts of CIOP

Nanjing University of Information Science & Technology

Ocean University of China

Guangxi Normal University Kunming University of Science and Technology

Huaqiao University Jilin University

Nanjing University Shanghai Jiao Tong University

Harbin Institute of Technology Tsinghua University

CIOC 2008 CIOC 2009

CIOC 2010 CIOC 2012

CIOP 2013 CIOP 2014

CIOP 2015 CIOP 2016

CIOP 2017 CIOP 2018

Optics Frontier—The 10th International Conference on Information Optics and Photonics (CIOP 2018) VI

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Optics Frontier—The 10th International Conference on Information Optics and Photonics (CIOP 2018) VIII

Tips

(No password)

(No password)

Volunteers and staffs are in blue T-shirts. You can go to registration desk or the CLP service center if you need any help.

LIAONING-HOTEL

From Xijiao Hotel to Liaoning International Hotel

Time: 8:00 am, 8:15 am

For more details, please pay attention to the notice board in the lobby of Xijiao Hotel

LIAONING-HOTEL-1

Wifi:

Shuttle Bus:

P

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for plenary talk

for keynote talk

for invited talk

for oral talk

Presentation types are noted as

The meal tickets are printed with badge. Please go to the canteen according to the time and location writen in the ticket.

There are two canteens for distribution.

1. Sheng An Hui Cafe ( 盛安汇咖啡厅 ), 1F

2. Sheng Jing Ge ( 盛京阁风味餐厅 ), 2F

Meals

Optics Frontier—The 10th International Conference on Information Optics and Photonics (CIOP 2018) IX

光电芯片产业高峰论坛

光电芯片作为光通信、互联网、物联网以及人工智能系统的核心，对国家发展和科技创新具有重要战略意义。目前我国的光电芯片受制于人，亟待发展产业，走出“无芯”困境。本次“光电芯片产业高峰论坛”邀请了外延、工艺、封装、应用等光电子芯片产业链上的国内高新企业，以期通过信息交流和思想碰撞，整合资源、凝聚力量，共同推动我国光电芯片产业的发展。

时间：2018 年 7 月 8 日，14:00-17:00

主持人：黄翊东，清华大学

地点：辽宁大厦，7 层，本溪厅

14:00-14:20激光照明的关键技术、现状和未来杨毅，上海蓝湖照明科技有限公司

14:20-14:40化合物半导体激光外延片国产化罗帅，江苏华兴激光科技有限公司

14:40-15:00高端光电子激光器芯片的国产化曲迪，华慧芯科技 ( 天津 ) 有限公司

15:00-15:20VCSEL 的最近进展赵励，常州纵慧芯光半导体科技有限公司

15:20-15:40 茶歇

15:40-16:00用于下一代云计算及无线光网络的激光器刘圣，苏州旭创科技有限公司

16:00-16:203D 传感的挑战和机遇朱力，光鉴科技

16:20-16:40激光雷达“芯”机遇李云翔，北京一径科技有限公司

16:40-17:00量子级联激光器及其应用王胤，宁波海尔欣光电科技有限公司

日程

Special Events

Optics Frontier—The 10th International Conference on Information Optics and Photonics (CIOP 2018) X

“论文图像处理与技巧”讲座

微纳光学制造培训班

近年来，以图形图像形式表述科研信息，在学术出版平台上越来越被重视，图像对论文的概括凝练作用，也成为当代每一位科研工作者的越来越关注的技能。为此，我们特别邀请国内知名学术图像设计团队创始人，以其从业十年的经验阅历，将为大家总结分析图形图像对于科研的应用和关键作用。以从科研人角度出发，怎么样理解和掌控图像的表达方式，如何理解图像的组成方式和构成逻辑，以及日常工作中图像处理的习惯性误区，给大家带来全新的概念和思路。

近年来，基于飞秒激光微纳加工技术的微纳光学制造技术因其高分辨率、真三维加工能力和材料普适性而成为一种愈发重要的精密加工技术，在微光学、微电子、微机械、微流控及信息光子学等领域的微纳功能器件制备上得到了广泛应用。本次培训将对飞秒激光微纳加工技术的特性进行系统性地介绍，并着重对飞秒激光在时间及空间上的激光脉冲整形技术进行详细讲解，同时对飞秒激光微纳加工的具体应用展开介绍。

CIOP 参会人员 1000 元 / 人，非参会人员 1200 元 / 人

辽宁大厦，7 层，营口厅

培训费用

培训地点

主要内容：图像设计构思方法、图像制作技术、论文中的数据图处理方式、日常做图小技巧、封面图的设计技巧与故事性挖掘等

主讲人：宋元元 | 静远嘲风创始人

地点：辽宁大厦，7 层，营口厅

时间：2018 年 7 月 8 日 19:00

微纳光学制造培训班日程安排日期时间日程题目授课老师

7 月 8 日

09:30-10:15 培训 1 上节基于空间整形的飞秒激光微

纳制造李焱教授北京大学

10:15-10:30 休息10:30-11:15 培训 1 下节11:15-13:00 中餐13:00-13:45 培训 2 上节

飞秒激光脉冲整形技术及其应用

程亚教授华东师范大学

13:45-14:00 休息14:00-14:45 培训 2 下节14:45-15:15 休息15:15-16:00 培训 3 上节

面向微纳功能器件制备的飞秒激光加工技术

孙洪波教授清华大学

16:00-16:15 休息16:15-17:00 培训 3 下节

Optics Frontier—The 10th International Conference on Information Optics and Photonics (CIOP 2018) XI

Meet CLP's Editors at CIOP 2018

If you will attend CIOP 2018, be sure to stop by poster section area to meet several CLP Journal Editors, including the Editors-in-Chief of Advanced Photonics, Photonics Research, Chinese Optics Letters, Chinese Journal of Lasers and Acta Optica Sinica for conversation.

All your questions, concerns and ideas for the journals are welcome, such as:

This event is open to all interested researchers. Welcome to join us at the Meet the Editors! Don’t miss the opportunity to get an insight into the process of paper get published and clear up any submissions queries you may have.

What criteria do journal editors look for in submitted manuscripts?What constitutes a useful manuscript review?Issues that researchers should watch out when drafting their manuscripts.

What: Meet the Editors from CLP’s Journals

When: 16:00-17:30, July 10, 2018 (Tuesday)

Where: Poster section area at Floor 8 of Liaoning International Hotel

Advanced Photonics

Editor-in-Chief Xiaocong(Larry) YuanShenzhen University

Chinese Optics Letters

Executive Editor-in-Chief Changhe ZhouSIOM, CAS

Chinese Journal of Lasers

Executive Editor-in-Chief Minling ZhongTsinghua University

Photonics Research

Editor-in-Chief Zhiping(James) ZhouPeking University

Executive Editor-in-Chief Yanqing LuNanjing University

Acta Optica Sinica

Executive Editor-in-Chief Jianlin ZhaoNorthwestern Polytechnical University

Optics Frontier—The 10th International Conference on Information Optics and Photonics (CIOP 2018) XII

英文科技论文写作培训

“Dyna Sense” Badminton Game

“CLP” Table Tennis Game

科技论文写作是科技工作的一部分，科技写作能力是科工作者必须具备的基本功，好的写作能力能让好的研究成果更快地发表、更好地传播。

学术成果的发表一般需要经过学术论文撰写、编辑初审、同行专家评议、主编终审等各关，充满艰辛。如何将好的科研成果撰写成好的科技论文？有些文章没能通过编辑的初审是什么原因？有些审稿人为什么会揪住某个问题不放？为什么外审通过的稿件会被主编拒掉？本次讲座特邀清华大学钟敏霖教授，传授“科技论文写作”的秘籍，让你的研究成果发表少走弯路。

钟敏霖，清华大学材料学院长聘教授，博士生导师，激光材料加工研究中心主任；美国激光学会（LIA）候任主席，会士；国际光电子与激光工程学会（IAPLE）前任主席、会士，《Journal of Laser Applications》资深编辑，Light: Science & Applications ( 英国自然出版集团 ) 编委。长期从事激光材料加工学术研究，完成 19 项国际合作项目和国家重点研发计划项目、973、自然基金重大国际合作项目等，多项研究成果在企业成功应用。长期活跃于国际激光加工学术领域，作国际会议大会报告 40 余次，授权申请专利 25 项，出版专著 4 本，发表论文 300+ 篇。

个人简介

主讲人：钟敏霖清华大学教授

地点：北京辽宁大厦，7 层，本溪厅

时间：2018 年 7 月 9 日 19:00

Time: 18:00-21:00, July 8-9

Time: 18:00-21:00, July 8-9

Award ceremony: Banquet, 18:00-21:00, July 10

Award ceremony: Banquet, 18:00-21:00, July 10

Contact: Mr. Fuhai Gao（高福海） +86-13585639202

Contact: Mr. Hongxing Yang（杨洪星） +86-18702161426

Location: Institute of Physics, CAS

Location: Beihang University

Optics Frontier—The 10th International Conference on Information Optics and Photonics (CIOP 2018) 1

Opening Ceremony & Plenary Talks

Time: July 9 (8:30 - 12:15) Location: Liao Ning Ballroom, 8F

July 9

Presider: Yidong Huang, Tsinghua University, China

08:30-08:45 Opening Ceremony

Presider: Xiaocong Yuan, Shenzhen University, China

08:45-09:30

Angular momentum multiplexing of broadband light at a nanoscale

Min Gu RMIT University, Australiap31

09:30-10:15 Manipulation of Generalized Energy-bands for New Functional Devices

Yidong Huang Tsinghua University, Chinap32

10:15-10:45 Coffee Break

Presider: Qingming Luo, Huazhong University of Science and Technology, China

10:45-11:30Enabling fiber technology for ultrasensitive sensing, frequency comb and Gbps random number generation

Xiaoyi Bao University of Ottawa, Canada

p33

11:30-12:15 Nanophotonics for a Green Internet

Dieter Bimberg Technische Universität Berlin, Germany & CIOMP, CAS, Chinap34

12:15-13:30 Lunch Break

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Session 1 Photonic Integration and Optical Interconnect

Session Chairs:

Meeting Room:

Daoxin Dai Zhejiang University, ChinaXue Feng Tsinghua University, ChinaGraham Reed University of Southampton, UK

Chaoyang, 7F

July 9Presider: Xue Feng, Tsinghua University, China

13:30-14:15 3D photonic-electronic integrated circuits on silicon S. J. Ben Yoo University of California, Davis, USA

p35

14:15-14:45 Waveguiding in valley photonic crystals Baile Zhang Nanyang Technological University, Singapore

p35

14:45-15:15 Silicon photonic modulators for higher-modulation formats Wei Shi Laval University, Canada

p36

15:15-15:30 CIOP2018-2018-000058Compact waveguide (de)multiplexer based on asymmetric Y-junctions Yang Gao Institute of Semiconductors, CAS, China

p44


Presider: Wei Shi, Laval University, Canada

16:00-16:30 Scaling Modulator Performance with Electronic Photonic Synergy Ke Li University of Southampton, UK

p36

16:30-17:00 Room-Temperature Operation of Silicon-Nanobeam Laser Based on 2D-Monolayer MoTe2 Yongzhuo Li Tsinghua University, China

p37

17:00-17:30 Broadband optical WDM demultiplexing based on silicon substrates Zhiyong Li Institute of Semiconductors, CAS, China

p37

July 10

Presider: Yikai Su, Shanghai Jiao Tong University, China

09:00-09:30 High-performance III-V quantum-dot lasers directly grown on silicon Huiyun Liu University College London, UK

p38

09:30-10:00 Photonic Integrated Chips for Optical Computing Xinliang Zhang Huazhong University of Science and Technology, China

p38

10:00-10:15 CIOP2018-2018-000126Circular optical phased array for 360° constant amplitude scanning Xuecheng Liu Tsinghua University, China

p44

10:15-10:30 CIOP2018-2018-000268Optical properties of all-polymer tunable Bragg grating filters with microheaters Anjin Liu Institute of Semiconductors, CAS, China

p44


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Presider: Xinliang Zhang, Huazhong University of Science and Technology, China11:00-11:30 Silicon Nanocavity Modulators: Toward Atto-joule/bit Energy Efficiency

Alan X. Wang Oregon State University, USAp39

11:30-12:00 High brightness diode lasers and off-axis spectral beam combining Cunzhu Tong Changchun Institute of Optics, Fine Mehcanics and Physics, CAS, China

p39

12:00-13:30 Lunch BreakPresider: Huiyun Liu, University College London, UK

13:30-14:00 Integrated silicon photonic devices for signal multiplexing/de-multiplexing and switching Yikai Su Shanghai Jiao Tong University, China

p40

14:00-14:30 Structuring Light by Structured Devices: Progress and Prospects Jian Wang Huazhong University of Science and Technology, China

p40

14:30-15:00 Polarization Independent Silicon Photonic Devices Yaocheng Shi Zhejiang University, China

p41

15:00-15:15 CIOP2018-2018-000324A Verilog-A Compact Model for Silicon Micro-Ring Supporting Fast Thermal-Electronic-Photonic Co-Simulation Da Ming Huazhong University of Science and Technology, China

p44

15:15-15:30 CIOP2018-2018-000354Three-dimensional waveguide cross-coupled silicon nitride microring resonators Jijun Feng University of Shanghai for Science and Technology, China

p44

15:30-17:30 Poster Session & Coffee Break, 8F

July 11Presider: Jian Wang, Huazhong University of Science and Technology, China

09:00-09:30 On-chip photonic microsystem for optical signal processing Minghua Chen Tsinghua University, China

p41

09:30-10:00 Multimode silicon photonics Daoxin Dai Zhejiang University, China

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10:00-10:30 Er silicate amplifier and laser Xingjun Wang Peking University, China

p42

10:30-11:00 Coffee BreakPresider: Minghua Chen, Tsinghua University, China

11:00-11:30 Generate and manipulate optical vortex Xue Feng Tsinghua University, China

p43

11:30-12:00 An analytical method to characterize OAM modes Junhe Zhou Tongji University, China

p43

12:00-12:15 CIOP2018-2018-000381Silicon Mach-Zehnder Modulator Using a Highly-Efficient L-Shape PN Junction Gangqiang Zhou Shanghai Jiao Tong University, China

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Session 2 Advanced Fiber Optics & Sensing Technology

Session Chairs:

Meeting Room:

Wei Jin The Hong Kong Polytechnic University, Hong Kong, ChinaTiegen Liu Tianjin University, ChinaYoung-Geun Han Hanyang University, Korea

Fushun, 7F

July 9Presider: Tiegen Liu, Tianjin University, China

13:30-14:15 Fiber Optic Nerve Systems based on Brillouin Scattering for Structural Health Monitoring Kazuo Hotate Toyota Technological Institute, Japan

p45

14:15-14:45 Photothermally generated microbubble for sensing and imaging applications Jun Ma Jinan University, China

p46

14:45-15:15 High precision fiber optic gyroscope with twin source Yuanhong Yang Beihang University, China

p46

15:15-15:30 CIOP2018-2018-000160 A stable seawater salinity sensor based on packaged microfiber in-line MZ interferometer: an overall assessment Yipeng Liao Ocean University of China, China

p53

15:30-16:00 Coffee BreakPresider: Kazuo Hotate, Toyota Technological Institute, Japan

16:00-16:30 Calibration-free near-infrared and mid-infrared wavelength modulation spectroscopy in industrial sensing and microbiological growth studies Arup Lal Chakraborty Indian Institute of Technology Gandhinagar, India

p47

16:30-17:00 Mid-infrared germanium-suspended-membrane photonic integrated circuits for biochemical sensing in the fingerprint spectral region Zhenzhou Cheng The University of Tokyo, Japan

p47

17:00-17:30 Optical reflectometry with ultra-high spatial resolution and long measurement range Xinyu Fan Shanghai Jiao Tong University, China

p48

17:30-17:45 CIOP2018-2018-000348 Optical frequency transfer over 377 km urban fiber link using EDFAs Xue Deng National Time Service Centre, CAS, China

p53

July 10Presider: Wei Jin, The Hong Kong Polytechnic University, Hong Kong, China

09:00-09:45 Optical Fiber Based Powerful Tools for Living Cells Investigation Libo Yuan Guilin University of Electronic Technology, China

p48

09:45-10:15 Recent advances of single-end-access high-speed distributed Brillouin sensing technology Yosuke Mizuno Tokyo Institute of Technology, Japan

p48

10:15-10:30 CIOP2018-2018-000220 Broadband light-control-light characteristics of WS2 on microfiber Hanguang Li Jinan University, China

p53

10:30-11:00 Coffee BreakPresider: Libo Yuan, Guilin University of Electronic Technology, China

11:00-11:30 Hollow-core Negative Curvature Fiber: Design, Fabrication and Applications Yingying Wang Beijing University of Technology, China

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11:30-12:00 Integrated fiber polymer microtips for Bessel-like beam generation Limin Xiao Fudan University, China

p49

12:00-12:15 CIOP2018-2018-000296 Laser-Induced Breakdown Spectroscopy Coupled with Machine learning Data treatment for Elementals Analysis of Soils Chen Sun Shanghai Jiao Tong University, China

p53

12:00-13:30 Lunch BreakPresider: Yosuke Mizuno, Tokyo Institute of Technology, Japan

13:30-14:00 Microwave photonic signal processing Xiaoke Yi The University of Sydney, Australia

p50

14:00-14:30 Femtosecond Laser Fabricated Fiber Microstructure Sensor Changrui Liao Shenzhen University, China

p51

14:30-15:00 Recent advances in fiber optofluidic lasers Yuan Gong University of Electronic Science and Technology of China, China

p51

15:00-15:15 CIOP2018-2018-000304 Graphene enhanced phase sensitive D-type fiber optic sensor Yi Xu Singapore University of Technology and Design, Singapore

p53

15:15-15:30 CIOP2018-2018-000250 Broad FSR and high sensitivity refractive index sensor using composite lattice cells based photonic crystal nanobeam cavity Chao Wang Beijing University of Posts and Telecommunications, China

p54

15:30-15:45 CIOP2018-2018-000388 Sapphire fiber Bragg gratings fabricated by femtosecond laser line-by-line inscription Jun He Shenzhen University, China

p54


July 11Presider: Changrui Liao, Shenzhen University, China

09:00-09:30 TBA Young-Geun Han Hanyang University, Korea

p51

09:30-10:00 Optical fiber sensing for acoustic properties measurement in low pressure gas medium Junfeng Jiang Tianjin University, China

p52

10:00-10:30 Tilted fiber Bragg grating based magnetic field sensors Xinyong Dong China Jiliang University, China

p52

10:30-10:45 CIOP2018-2018-000203One dimensional photonic crystal/metal structure hollow fiber refractive index sensor based on Tamm plasmon polariton Xian Zhang Fudan University, China

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Session 3 Biomedical Photonics

Session Chairs:

Members:

Meeting Room:

Junle Qu Shenzhen University, China Qingming Luo Huazhong University of Science and Technology, China

Liangzhong Xiang University of Oklahoma, USA

Ling Fu Huazhong University of Science and Technology, China

Liwei Liu Shenzhen University, China

Ruikang (Ricky) Wang University of Washington, USA

Dalian, 7F

July 9

Presider: Junle Qu, Shenzhen University, China

13:30-14:15 Brainsmatics-Deciphering Genetically Defined Cell Types and Connectome with Brain-wide Positioning System Qingming Luo Huazhong University of Science and Technology, China

p55

14:15-14:45 Rapid In Vivo Raman Spectroscopy for Medical Applications Haishan Zeng University of British Columbia, Canada

p56

14:45-15:15 Imaging molecular signatures for clinical detection of scleroderma in the hand by multispectral photoacoustic tomography Zhen Yuan University of Macau, Macau, China

p56

15:15-15:30CIOP2018-2018-000115Rethinking the resolution of an optical microscope: from early concepts to contemporary calculations Mengting Li Huazhong University of Science and Technology, China

p66

15:30-16:00 Coffee BreakPresider: Ruikang Wang, University of Washington, USA

16:00-16:30 Super-resolution for live cell imaging Junle Qu Shenzhen University, China

p57

16:30-17:00 Fiber-based methods for deep brain Calcium recording in behaving mice Ling Fu Huazhong University of Science and Technology, China

p57

17:00-17:30 High speed non-invasive deep tissue fluorescent imaging for neuroscience Ke Si Zhejiang University, China

p58

July 10Presider: Liangzhong Xiang, University of Oklahoma, USA

09:00-09:45 Non-invasive Optical Imaging of Tissue Morphology and Microcirculations in vivo and its Clinical Applications Ruikang Wang University of Washington, USA

p58

09:45-10:15 3-Photon Cross Section: Measurement and Application Ke Wang Shenzhen University, China

p59

10:15-10:30 CIOP2018-2018-000152Fluorescence lifetime imaging for real-time monitoring of fluctuations in protein concentrations in nuclear organelles Svitlana M.Levchenko Shenzhen University, China

p66

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10:30-11:00 Coffee BreakPresider: Ling Fu, Huazhong University of Science and Technology, China

11:00-11:30 X-ray-induced Acoustic Computed Tomography (XACT) Liangzhong Xiang, University of Oklahoma, USA

p59

11:30-12:00 Small animal angiography with OCT and photoacoustic imaging Zhenhe Ma, Northeastern University at Qinhuangdao, China

p60

12:00-13:30 Lunch BreakPresider: Ke Wang, Shenzhen University, China

13:30-14:00 Near and short wave infrared spectral regions for biomedical applications: tissue optical properties and agents for optical imaging and phototherapy TymishY.Ohulchanskyy Shenzhen University, China

p60

14:00-14:30 Recent Advances in Photodynamic Therapy Buhong Li Fujian Normal University, China

p61

14:30-15:00 Two-photon laser scanning stereomicroscopy for high-speed volumetric imaging Tong Ye Clemson University, USA

p61

15:00-15:15 CIOP2018-2018-000212A High-Fidelity Time Reversal (Digital Optical Phase Conjugation) system to suppress the scattering effect of a turbid medium Zhipeng Yu Hong Kong Polytechnic University, Hong Kong, China

p66

15:15-15:30 CIOP2018-2018-000251X-ray phase-contrast imaging Using cascade Talbot-Lau interferometers Li Ji Shenzhen University, China

p66


July 11Presider: Shih-Chi Chen, The Chinese University of Hong Kong, Hong Kong, China

09:00-09:30 Quantitative detection and staging of cancer tissues using label-free Mueller matrix microscope Hui Ma Tsinghua University, China

p62

09:30-10:00 Effect of Loud Sound Exposure on cochlear blood flow measured by OCTA Suzan Dziennis Oregon Health & Science University, USA

p62

10:00-10:15 CIOP2018-2018-000248Non-contact all-optical specklegram-based photoacoustic sensing Huanhao Li Hong Kong Polytechnic University, Hong Kong, China

p66

10:15-10:30 CIOP2018-2018-000255Optical resolution photoacoustic microscopy with ultra large field of view Wei Qin Southern University of Science and Technology, China

p66

10:30-11:00 Coffee BreakPresider: Hui Ma, Tsinghua University, China

11:00-11:30 High throughput nanofabrication and multi-photon imaging based on temporal focusing Shih-Chi Chen The Chinese University of Hong Kong, Hong Kong, China

p63

11:30-11:45 CIOP2018-2018-000267Quantitative tumor photobiomodulation Timon Cheng-Yi Liu South China Normal University, China

p67

11:45-12:00 CIOP2018-2018-000057Validation of a miniature sphygmomanometer using photoplethysmography Xiaoman Xing Suzhou Institute of Biomedical Engineering and Technology, CAS, China

p67

12:00-12:15 CIOP2018-2018-000103Fast, in-situ, label-free imaging to single nanoparticle and virus by using surface plasmon polariton in-plane scattering Xinchao Lu Institute of Microelectronics, CAS, China

p67

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12:00-13:30 Lunch BreakPresider: Suzan Dziennis, Oregon Health & Science University, USA

13:30-14:00 Application of multiphoton microscopy in the diagnosis and therapy of cancer Jianxin Chen Fujian Normal University, China

p63

14:00-14:30 Micro-optical coherence tomography for evaluating skin conditions Linbo Liu Nanyang Technological University, Singapore

p64

14:30-14:45 CIOP2018-2018-000252Opto-acousto-fluidic microscopy for three-dimensional imaging of droplets and cells Tian Jin Southern University of Science and Technology, China

p67

14:45-15:00 CIOP2018-2018-000274Preparation and Luminescent Properties of Rare earth Doped Nano-fluorapatite Peng Zou Changchun University of Science and Technology, China

p67

15:00-15:15 CIOP2018-2018-000292Study on the preparation method of high contrast PDMS micropost arrays with opaque top surface Bo Li Beijing Information Science & Technology University, China

p67

15:15-15:30 CIOP2018-2018-000370High Speed Large-Field-of-View Scanning Microscopy Imaging Technology and System Implementation Liang Shan Peking University, China

p68

15:30-16:00 Coffee BreakPresider: Jianxin Chen, Fujian Normal University, China

16:00-16:30 OCT angiography with maximum available sample size Peng Li Zhejiang Univerisity, China

p64

16:30-17:00 Integration of Time and Frequency Domain OCT for Measurements in Hearing Mechanics Fangyi Chen Southern University of Science and Technology, China

p65

17:00-17:15 CIOP2018-2018-000272Ultracompact high-resolution photoacoustic microscopy Qian Chen Southern University of Science and Technology, China

p68

17:15-17:30 CIOP2018-2018-000031Compact integrated biosensors based on the silicon slot microring resonator Jiahua Zhang Huazhong University of Science and Technology, China

p68

17:30-17:45 CIOP2018-2018-000338Interference of Photobiomodulation on Neural Differentiation of Human Umbilical Cord Mesenchymal Stem Cells Hongjun Wu Tianjin Polytechnic University, China

p68

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Session 4 Optical Design and Optical Precision Measurement

Session Chairs:

Members:

Meeting Room:

Rihong Zhu Nanjing University of Science and Technology, China

Hua Shen Nanjing University of Science and Technology, China

Sen Han University of Shanghai for Science and Technology, China Robert A. Norwood University of Arizona, USA

Tieling, 7F

July 9Presider: Yidong Tan, Tsinghua University, China

13:30-14:00 Single-molecule Fluorescence Spectroscopy based on Advanced Correlation and Distribution Analysis Guangcun Shan Beihang University, China & UCLA, USA

p69

14:00-14:15 CIOP2018-2018-000006Measurement of specular surfaces by an one-shot-projection method with closed form solutions Zhenzhou Wang Shenyang Institute of Automation, China

p72

14:15-14:30 CIOP2018-2018-000027Tunable hybrid optical filter based on a passive cavity for femtosecond lasers Xiao Xiang National Time Service Center, CAS, China

p72

14:30-14:45 CIOP2018-2018-000084Synthetic-Wavelength-Based Dual-Comb Interferometry for High-Speed and High-Precision Distance Measurement Zebin Zhu Tsinghua University, China

p72

14:45-15:00 CIOP2018-2018-000098Application of Wavelet threshold Desoising in PMD Measurement by Fixed Analyzer Method Yuyang Sha Beijing University of Posts and Telecommunications, China

p72

15:00-15:15 CIOP2018-2018-000155Using blob to analyze image processing method to achieve precision detection of IFU optical fiber microplate Xingyu Bai Harbin Engineering University, China

p72

15:15-15:30 CIOP2018-2018-000162Research on Singular Value Decomposition Denoising Algorithm on Polarization Mode Dispersion Measurement Yalei Chu Beijing University of Posts and Telecommunications, China

p72

15:30-16:00 Coffee BreakPresider: Guangcun Shan, Beihang University, China & UCLA, USA

16:00-16:30 Laser frequency-shifted Feedback Profilometry and Tomography Yidong Tan Tsinghua University, China

p69

16:30-17:00 Laser differential confocal interference comprehensive measurement method for spherical parameters and its instrument Lirong Qiu Beijing Institure of Technology, China

p70

17:00-17:15 CIOP2018-2018-000169 Measuring pulse duration in the far field for high-energy petawatt lasers Jianwei Yu Shanghai Institute of Optics and Fine Mechanics, CAS, China

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17:15-17:30 CIOP2018-2018-000170Advances in optical freeform surface representations and their applications Jingfei Ye Nanjing University of Information Science and Technology, China

p73

July 10Presider: James Nagel, Harris Corporation, USA

08:30-09:00 Rigorous Design of Wide Angle 2D Dot Patterns For Structured Light Applications Jianhua Jiang LightSoft LLC, USA

p70

09:00-09:30 Cavity enhanced terahertz sensing with both the capacity of substance identification and nano-scale resolution Zhanghua Han Nanjing University of Science and Technology, China

p71

09:30-09:45 CIOP2018-2018-000265High Accuracy Stress Measurement with Ptychographic Iterative Engine Bei Cheng Shanghai Institute of Optics and Fine Mechanics, CAS, China

p73

09:45-10:00 CIOP2018-2018-000275X-ray detector with high temporal resolution by using pulse-dilation technology Houzhi Cai Shenzhen University, China

p73

10:00-10:15 CIOP2018-2018-000282Time offset measurement of 100 km long fiber link with dual-comb linear optical sampling Abulikemu Abuduweili Peking University, China

p73

10:15-10:30 CIOP2018-2018-000402Study of RGB-D Point Cloud Registration Method Guided by Color Information Hang Liu Tongji University, China

p73

10:30-11:00 Coffee BreakPresider: Zhanghua Han, Nanjing University of Science and Technology, China

11:00-11:30 Continuous Wave Lidar for Atmospheric Environmental Sensing James Nagel Harris Corporation, USA

p71

11:30-11:45 CIOP2018-2018-000404Study on cascaded stepwise singular value decomposition and its application in laser absorption spectroscopy Qixing Tang Anhui Institute of Optics and Fine Mechanics, CAS, China

p74

11:45-12:00 CIOP2018-2018-000249Simultaneous dual-wavelength reconstruction based on low rank mixed-state and phase modulationDong Xue Shanghai Institute of Optics and Fine Mechanics, CAS, China

p73

12:00-13:30 Lunch Break15:30-17:30 Poster Session & Coffee Break, 8F

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Session 5 Optical Communications and Networks

Session Chairs:

Meeting Room:

Zhaohui Li Sun Yat-sen University, ChinaXiangjun Xin Beijing University of Posts and Telecommunications, China

Duk Yong Choi The Australian National University, Australia

Liaoyang, 7F

July 9Presider: Yang Yue, Juniper Networks, USA

13:30-14:15 Mode division multiplexed optical communications based on ring core fibres Siyuan Yu Sun Yat-sen University, China & University of Bristol, UK

p75

14:15-14:45 Research on Optical Devices based on Special Optical Fibers Li Pei Beijing Jiaotong University, China

p75

14:45-15:15 Average-free Coherent BOTDA Liang Wang The Chinese University of Hong Kong, Hong Kong, China

p76

15:15-15:30 CIOP2018-2018-000082 Effect of Temperature on Conversion Characteristics of Segmented PPLN based Wavelength Converter Yanxu Lei North China Electric Power University, China

p82

15:30-16:00 Coffee BreakPresider: Siyuan Yu, Sun Yat-sen University, China & University of Bristol, UK

16:00-16:30 Interoperation of 400GBASE-LR8 Physical Interfaces using CFP8 Pluggable Modules Yang Yue Juniper Networks, USA

p76

16:30-17:00 Capacity and security of broadband access networks Chongfu Zhang University of Electronic Science and Technology of China, China

p77

17:00-17:15 CIOP2018-2018-000106 Slow Light via Stimulated Brillouin Scattering in few-mode fibers Lijun Li Lanzhou University of Technology, China

p82

17:15-17:30 CIOP2018-2018-000144 Chaotic Laser and its Applications Anbang Wang Taiyuan University of Technology, China

p82

17:30-17:45 CIOP2018-2018-000386 Joint compensation of IQ imbalance and phase nosie based on extended kalman filter Linsheng Fan Shenzhen Graduate School, Harbin Institute of Technology, China

p82

July 10Presider: Jianjun Yu, ZTE TX Inc., USA

09:00-09:45 Application of Optical Communication and Signal Processing Techniques in Distributed Optical Sensing Systems Chao Lu The Hong Kong Polytechnic University, Hong Kong, China

p77

09:45-10:15 Fiber optics frequency comb enabled linear optical sampling with operation wavelength range extension Songnian Fu Huazhong University of Science and Technology, China

p78

10:15-10:30 CIOP2018-2018-000190 Mid-infrared parametric amplification in chalcogenide microstructured fibers Nan Cao Southwest Jiaotong University, China

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10:30-11:00 Coffee BreakPresider: Songnian Fu, Huazhong University of Science and Technology, China

11:00-11:30 Software defined silicon photonic chip for optical signal processing Linjie Zhou Shanghai Jiao Tong University, China

p78

11:30-11:45 CIOP2018-2018-000199 Blind phase noise compensation based on circular quadrature amplitude modulation Ping Zhang Zhejiang University of Technology, China

p82

11:45-12:00 CIOP2018-2018-000247 Design, fabrication and measurement of a novel ultra-low loss graded-index FMF Lei Shen Yangtze Optical Fiber and Cable Joint Stock Limited Company, China

p83

12:00-13:30 Lunch BreakPresider: Chao Lu, The Hong Kong Polytechnic University, Hong Kong, China

13:30-14:15 Optical Signal transmission with High Baud Rate and High Order QAM Jianjun Yu ZTE TX Inc., USA

p79

14:15-14:45 Graphene for on-chip communication devices Baohua Jia Swinburne University of Technology, Australia

p79

14:45-15:15 Generation of Orbital Angular Momentum Light in Optical Fibers Hao Zhang Nankai University, China

p80

15:15-15:30 CIOP2018-2018-000307 Optical frequency transfer over 400km urban fiber network with a fractional frequency instability of 10-19 level Jie Liu National Time Service Centre, CAS, China

p83

15:30-15:45 CIOP2018-2018-000193 An Efficient Sampling Scheme Base on Length Estimation for Optical Camera Communication Yudong Zhou Hunan University, China

p83


July 11Presider: Baohua Jia, Swinburne University of Technology, Australia

09:00-09:30 The alarm preprocessing and alarm correlation analysis based on Machine Learning Min Zhang Beijing University of Posts and Telecommunications, China

p80

09:30-10:00 Recent advances of high-speed optical network safety protection Qingsong Luo CETC34, China

p81

10:00-10:15 CIOP2018-2018-000339 Polarization changes of beams travelling through anisotropic turbulence for optics transmission Ziyang Li Peking University, China

p83

10:15-10:30 CIOP2018-2018-000374 Enhanced performance of high-speed IM/DD DMT systems using an EM channel estimation algorithm for short reach optical communication Mengyuan Li Beijing Jiaotong University, China

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Session 6 Optical Imaging and HolographySession Chairs:

Members:

Meeting Room:

Jianlin Zhao Northwestern Polytechnical University, China

Jianglei Di Northwestern Polytechnical University, China

Liangcai Cao Tsinghua University, China Ting-Chung Poon Virginia Tech, USA

Shenyang, 7F (July 9-11); Yingkou, 7F (July 11)

July 9, Shenyang, 7FPresider: Ting-Chung Poon, Virginia Tech, USA

13:30-14:15 Use of Digital Holography and Machine Learning for Overlapped Fingerprint Image Capture and Separation Byoungho Lee Seoul National University, Korea

p84

14:15-14:45 Holographic Printer for Exact Color 3-D Object Representation Hoonjong Kang Korea Electronics Technology Institute, Korea

p84

14:45-15:15 Design methods for generating computer hologram based on image quality enhancement Juan Liu Beijing Institute of Technology, China

p85

15:15-15:30 CIOP2018-2018-000111Separation of Variables Based Method for Fast Calculation of Imaging System in Lithographic tools Shuang Xu Wuhan University of Science and Technology, China

p100

15:30-16:00 Coffee BreakPresider: Byoungho Lee, Seoul National University, Korea

16:00-16:30 Ultra-High-Speed Fizeau Interferometry and Digital Holography Toyohiko Yatagai Utsunomiya University, Japan

p85

16:30-17:00 LCOS Based Holographic Wavelength Selective Switching Platform Daping Chu University of Cambridge, UK

p86

17:00-17:30 Review on objective image quality evaluation of computer-generated holograms Hiroshi Yoshikawa Nihon University, Japan

p86

July 10, Shenyang, 7FPresider: Xiaodi Tan, Fujian Normal University, China

09:00-09:45 On the use of machine learning algorithms in computational imaging George Barbastathis Massachusetts Institute of Technology, USA

p87

09:45-10:15 Dammann grating and its applications Changhe Zhou Shanghai Institute of Optics and Fine Mechanics, CAS, China

p87

10:15-10:30 CIOP2018-2018-000059Phase-shifting digital holography with vortex lens Xiuping Zhang Shanghai Institute of Optics and Fine Mechanics, CAS, China

p100

10:30-11:00 Coffee BreakPresider: Changhe Zhou, Shanghai Institute of Optics and Fine Mechanics, CAS, China

11:00-11:30 Liquid Crystal Photoalignment Technology for Photonic Applications Yanqing Lu Nanjing University, China

p87

11:30-12:00 Princess Leia vs. the Holodeck Daniel Smalley Brigham Young University, USA

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12:00-13:30 Lunch BreakPresider: Daniel Smalley, Brigham Young University, USA

13:30-14:00 Dual image recording with orthogonal linear polarization holography Xiaodi Tan Fujian Normal University, China

p88

14:00-14:30 Recording of off-axis object light by optical scanning holography Jung-Ping Liu Feng Chia University, Taichung, China

p89

14:30-15:00 Generation of phase-only hologram TSANG Wai Ming Peter City University of Hong Kong, Hong Kong, China

p90

15:00-15:15 CIOP2018-2018-000083Deep-learning digital holography Hao Wang Shanghai Institute of Optics and Fine Mechanics, CAS, China

p100

15:15-15:30 CIOP2018-2018-000039Angular variation measurement of spheroids using defocused interferometric particle imaging JinluSun Tianjin University, China

p100


July 11, Shenyang, 7FPresider: Sung-Wook Min, Kyung Hee University, Korea

09:00-09:45 Review on Incoherent Digital Holography Ting-Chung Poon Virginia Tech, USA

p90

9:45-10:15 Data analysis for optical measurement Kemao Qian Nanyang Technological University, Singapore

p91

10:15-10:30 CIOP2018-2018-000091Imaging through scattering media with the auxiliary of a known reference object Wanqin Yang Shanghai Institute of Optics and Fine Mechanics, CAS, China

p100

10:30-11:00 Coffee BreakPresider: Qionghua Wang, Sichuan University, China

11:00-11:30 Partially coherent light lasers and their characteristics Jixiong Pu Huaqiao University, China

p91

11:30-12:00 Multimode-fiber/scattering-medium computational optical endoscopic imaging based on digital wavefront modulation Liyong Ren Xi'an Institute of Optics and Precision Mechanics, CAS, China

p92

12:00-13:30 Lunch BreakPresider: Puxiang Lai, The Hong Kong Polytechnic University, China

13:30-14:00 Holographic zoom system based on liquid device Qionghua Wang Sichuan University, China

p92

14:00-14:30 Optical nanoscopy: truly non-intrusive Jianying Zhou Sun Yat-sen University, China

p93

14:30-15:00 Incoherent digital holography using geometric phase Sung-Wook Min Kyung Hee University, Korea

p93

15:00-15:15 CIOP2018-2018-000041GPU Based Real-Time Enhancement of High Resolution Image Maosen Huang Xidian University, China

p100

15:15-15:30 CIOP2018-2018-000116Shape information retrieval from simulated interferometric out-of-focus images of snowflakes Huanhuan Shen Institute of Fluid Physics, CAEP, China

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Presider: Sung-Wook Min, Kyung Hee University, Korea16:00-16:30 Fast hologram calculation using wavelet transform

Tomoyoshi Shimobaba Chiba University, Japanp94

16:30-17:00 Guidestar-assisted optical focusing and imaging at depths in tissue Puxiang Lai The Hong Kong Polytechnic University, Hong Kong, China

p94

17:00-17:30 Particle measurement using interferometric particle imaging Hongxia Zhang Tianjin University, China

p95

July 11, Yingkou, 7FPresider: Liangcai Cao, Tsinghua University, China

09:00-09:30 Dynamic metasurface for terahertz wave-front modulation Yan Zhang Capital Normal University, China

p95

09:30-10:00 Fast super-resolution structured illumination microscopy Baoli Yao Xi'an Institute of Optics and Precision Mechanics, CAS, China

p96

10:00-10:30 Computational Imaging: When Optics Meets Deep Learning Guohai Situ Shanghai Institute of Optics and Fine Mechanics, CAS, China

p96

10:30-11:00 Coffee BreakPresider: Yan Zhang, Capital Normal University, China

11:00-11:30 Common-path digital holographic microscopy and its applications Jianglei Di Northwestern Polytechnical University, China

p97

11:30-11:45 CIOP2018-2018-000172Imaging Through Highly Scattering Media Based on the Optical Transmission Matrix Bin Zhuang Xi’an Institute of Optics and Precision Mechanics, CAS, China

p101

12:00-13:30 Lunch Break Presider: Kemao Qian, Nanyang Technological University, Singapore

13:30-14:00 Continuous-wave terahertz coherent phase-contrast imaging Rong Lu Beijing University of Technology, China

p97

14:00-14:30 Live-cell super-resolution volume imaging based on multi-angle TIRFM Cuifang Kuang Zhejiang University, China

p97

14:30-15:00 Large-size floating 3D light-field dispIay with the right occIusion Xinzhu Sang Beijing University of Posts and Telecommunications, China

p98

15:00-15:15 CIOP2018-2018-000150Three-dimensional computational sectioning imaging by compressive incoherent digital holography Yuhong Wan Beijing University of Technology, China

p101

15:15-15:30 CIOP2018-2018-000178Imaging through turbid medium using ptychographical Guowei Li Shanghai Institute of Optics and Fine Mechanics, CAS, China

p101

15:30-16:00 Coffee BreakPresider: Xinzhu Sang, Beijing University of Posts and Telecommunications, China

16:00-16:30 Digital holographic imaging based on compressive sensing Liangcai Cao Tsinghua University, China

p98

16:30-17:00 Combined structured illumination super-resolution microscopy with single molecule localization and tracking Hui Li Suzhou Institute of Biomedical Engineering and Technology, CAS, China

p99

17:00-17:15 CIOP2018-2018-000142Two-step phase retrieval algorithm from single-exposure measurement Meiqin Wang Anhui University, China

p101

17:15-17:30 CIOP2018-2018-000429Full analytical triangle-based computer-generated holographyYa-Ping Zhang Kunming university of science and technology, China

p101

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Session 7 Plasmonics and Metamaterials

Session Chairs:

Meeting Room:

Tiejun Cui Southeast University, ChinaFang Liu Tsinghua University, China Din-Ping Tsai Research Center for Applied Sciences, Academia Sinica, Taiwan, China

Yingkou, 7F

July 9Presider: Qiaoqiang Gan, University at Buffalo & The State University of New York, USA

13:30-14:15 Meta-device for Photonics in Demand Din Ping Tsai Research Center for Applied Sciences, Academia Sinica, Taiwan, China

p102

14:15-14:45 Modulating light propagation using metal-dielectric microstructures Xiaoyong Hu Peking University, China

p102

14:45-15:15 Threshold-less Cherenkov radiation in hyperbolic metamaterial Fang Liu Tsinghua University, China

p102

15:15-15:30 CIOP2018-2018-000319 Unusual Scaling Laws for Plasmonic Nanolasers beyond the Diffraction Limit Suo Wang Peking University, China

p107

15:30-16:00 Coffee BreakPresider: Fang Liu, Tsinghua University, China

16:00-16:30 Light-matter interaction within extremely small dimensions Qiaoqiang Gan University at Buffalo & The State University of New York, USA

p103

16:30-17:00 Generation of structured optical beams and electron beams Yuanjie Yang University of Electronic Science and Technology of China, China

p104

17:00-17:15 CIOP2018-2018-000064 Thin films of high reflectivity for efficient radiative cooling Yeqing Zhu Nanjing Normal University, China

p107

17:15-17:30 CIOP2018-2018-000195 Spatial differentiator: all-optical analog computing within subwavelength scale Zhichao Ruan Zhejiang University, China

p107

July 10Presider: Zhaowei Liu, University of California at San Diego, USA

09:00-09:45 Structured Chirality in Nanophotonics Wenshan Cai Georgia Institute of Technology, USA

p104

09:45-10:15 Plasmonics: friend or foe for laser miniaturization? Ren-Min Ma Peking University, China

p105

10:15-10:30 CIOP2018-2018-000061 Terahertz Reconfigurable Metasurface with Optical Pump Jinying Guo Shanghai Institute of Optics and Fine Mechanics, CAS, China

p107


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Presider: Wenshan Cai, Georgia Institute of Technology, USA11:00-11:30 Hyperbolic metamaterial assisted illumination nanoscopy

Zhaowei Liu University of California at San Diego, USAp105

11:30-11:45 CIOP2018-2018-000317 Imaging the Dark Emission of Spasers Huazhou Chen Peking University, China

p107

11:45-12:00 CIOP2018-2018-000209 On-grating graphene surface plasmons enabling spatial differentiation in the terahertz region Yisheng Fang Zhejiang University, China

p108

12:00-13:30 Lunch BreakPresider: Renmin Ma, Peking University, China

13:30-14:00 Sorting of Chiral Nanoparticles by metasurface with a broken symmetry Tun Cao Dalian University of Technology, China

p106

14:00-14:30 Recent advances in Metamaterial-Inspired Vacuum Electron Devices Zhaoyun Duan University of Electronic Science and Technology of China, China

p106

14:30-14:45 CIOP2018-2018-000137 Generating and Tuning the Fano Resonance by Graphene Oligomers with Different Nanostructures Junbo Ren Huaqiao University, China

p108

14:45-15:00 CIOP2018-2018-000306 Toward Topologically Manipulation of Terahertz Photoresponse in Layered Materials Jin Wang Shanghai Institute of Technical Physics, China

p108

15:00-15:15 CIOP2018-2018-000335 Low-aspect-ratio meta-holograms in visible light Guoxing Zheng Wuhan University, China

p108


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Session 8 Lasers and Nonlinear Optics

Session Chairs:

Members:

Meeting Room:

Xueming Liu Zhejiang University, China

Shanhui Xu South China University of Technology, China

Qiang Liu Tsinghua University, China

Pu Zhou National University of Defense Technology, China

Nail Akhmediev The Australian National University, Australia

Anshan, 7F

July 9Presider: Kenneth K. Y. Wong, The University of Hong Kong, Hong Kong, China

13:30-14:15 High power multi-wavelength femtosecond optical parametric oscillator Zhiyi Wei Institute of Physics CAS, China

p109

14:15-14:45 ‘Multiplexed’ mode-locked fiber lasers for single-cavity, dual-frequency-comb generation Zheng Zheng Beihang University, China

p109

14:45-15:00 CIOP2018-2018-000035 Depolarization degree of picosecond radially polarized beam induced by non-radially symmetrical pumping during power amplification Meng Chen Beijing University of Technology, China

p116

15:00-15:15 CIOP2018-2018-000412 Propagation dynamics of nondiffracting vortex beams in a chiral medium Yuanfei Hui Xidian University, China

p116

15:15-15:30 CIOP2018-2018-000067 Analysis of assembly mechanical characteristics for KDP frequency conversion crystals Tianye Liu Tsinghua University, China

p116

15:30-16:00 Coffee BreakPresider: Zhiyi Wei, Institute of Physics CAS, China

16:00-16:30 Fiber parametric temporal imaging for ultrafast applications Kenneth Kin-Yip Wong The University of Hong Kong, Hong Kong, China

p110

16:30-17:00 Progress on mid-infrared fiber lasers Jianfeng Li University of Electronic Science and Technology of China, China

p110

17:00-17:15 CIOP2018-2018-000119 Experiment study of wide range tunable femto-nano joule laser pulse output with flat top profile Yunfeng Chen Beijing Institute of Technolgy, China

p116

17:15-17:30 CIOP2018-2018-000149 Controllable mode-locking of multimode thulium fiber lasers Chao Huang Shanghai Jiao Tong University, China

p116

17:30-17:45 CIOP2018-2018-000270 How to Amplify a Laguerre-Gaussian Mode Haocheng Yang Nanjing University, China

p117

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July 10Presider: Pu Zhou, National University of Defense Technology, China

09:00-09:30 Ultrafast femtosecond fiber lasers and VUV source generation Zhigang Zhao The University of Tokyo, Japan

p111

09:30-10:00 Suppression of noise sidebands in low-noise single-frequency fiber laser Shanhui Xu South China University of Technology, China

p111

10:00-10:15 CIOP2018-2018-000341 Passively Q-switched Ho3+/Pr3+ codoped fluoride fiber laser at 2.87 μm using antimonene Hongyu Luo University of Electronic Science and Technology of China, China

p117

10:15-10:30 CIOP2018-2018-000163 Generating flat-top Laser Pulses with a Fiber-Loop Time Lens Hongjing Xiao Shanghai Jiao Tong University, China

p117

10:30-11:00 Coffee BreakPresider: Zhigang Zhao, The University of Tokyo, Japan

11:00-11:30 High power tandem pumped fiber lasers Pu Zhou National University of Defense Technology, China

p112

11:30-12:00 Narrowband fiber laser and its application in distributed acoustic sensing Minghong Yang Wuhan University of Technology, China

p112

12:00-12:15 CIOP2018-2018-000230 Sub-200 fs soliton mode-locked fiber laser based on bismuthene saturable absorber Bo Guo Harbin Engineering University, China

p117

12:00-13:30 Lunch BreakPresider: Minghong Yang, Wuhan University of Technology, China

13:30-14:00 Generation and amplification of sub-nanosecond laser pulses at high energy Yulei Wang Harbin Institute of Technology, China

p113

14:00-14:30 Spontaneous symmetry breaking in an optical microcavity Yun-Feng Xiao Peking University, China

p113

14:30-15:00 Plamsmonic Nanoimprinting for Large-area Nanotexturing Qidai Chen Jilin University, China

p114

15:00-15:15 CIOP2018-2018-000329 Ultra-wide and nearly flat-top gain spectrum in asymmetric quantum-well structure for InGaAs tunable lasers QingnanYu Beihang University, China

p117

15:15-15:30 CIOP2018-2018-000411 All-fiber mode-locked Tm fiber laser with a stretched graded-index multimode optical fiber as a saturable absorber Huanhuan Li China JiLiang Universiy, China

p117

15:30-15:45 CIOP2018-2018-000269 Performance of active pulse shaping of high power multi-pass ring laser amplifier Jiangtao Guo Shanghai Institute of Optics and Fine Mechanics, CAS, China

p117


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July 11Presider: Xuechun Lin, Institute of Semiconductors, CAS, China

09:00-09:30 Self-assembly of pulses in mode-locked fiber lasers Meng Pang Max-Planck Institute for the Science of Light, Germany

p114

09:30-10:00 Generation of few-cycle laser pulses from the fiber system Minglie Hu Tianjin University, China

p115

10:00-10:15 CIOP2018-2018-000359 Air-cooling 60 W Tm:fiber laser and its applications on transparent plastics processing EncaiJi Harbin Institute of Technology, China

p118

10:15-10:30 CIOP2018-2018-000362 Study on the Killing Effect of mPDT on Colorectal Cancer and its Mechanism Xiafei Shi Institute of Biomedical Engineering, CAMS, China

p118

10:30-11:00 Coffee BreakPresider: Meng Pang, Max-Planck Institute for the Science of Light, Germany

11:00-11:30 KW high-power all-solid-state lasers and their applications Xuechun Lin Institute of Semiconductors, CAS, China

p115

11:30-11:45 CIOP2018-2018-000141 High-power VCSEL side pumped 2° wedge angle Nd:YAG repetition rate 1 kHz four-pulses sequence picosecond regenerative amplifier Ce Yang Beijing University of Technology, China

p118

11:45-12:00 CIOP2018-2018-000409 Dynamic computer-generated nonlinear-optical holograms in non-collinear second harmonic generation process Haigang Liu Shanghai Jiao Tong University, China

p118

12:00-12:15 CIOP2018-2018-000394 High spectral power density supercontinuumgenerated by two femtosecond laser beams interference in fused silica Dongwei Li Changchun University of Science and Technology, China

p118

12:00-13:30 Lunch Break

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Session 9 Quantum Optics and Quantum Information Technology

Session Chairs:

Meeting Room:

Wei Zhang Tsinghua University, ChinaXiaosong Ma Nanjing University, China

Dandong, 7F

July 9Presider: Lixing You, Shanghai Institute of Microsystem and Information Technology, CAS, China

13:30-14:15 Superior Optical Properties of Single Perovskite Nanocrystals Xiaoyong Wang Nanjing University, China

p119

14:15-14:45 Experimental two-dimensional quantum walk on a photonic chipXianmin Jin Shanghai Jiao Tong University, China

p119

14:45-15:15 Distributed superconducting nanowire detector for single-photon imaging Qingyuan Zhao Nanjing University, China

p120

15:15-15:30 CIOP2018-2018-000166 Achieving strong coupling within the nanogap based on whispering gallery modes Qi Zhang Tsinghua University, China

p128

15:30-16:00 Coffee BreakPresider: Xiaoyong Wang, Nanjing University, China

16:00-16:30 Superconducting Nanowire Single Photon Detector for Quantum Information Lixing You Shanghai Institute of Microsystem and Information Technology, CAS, China

p120

16:30-17:00 Superconductor nanowire detector: from single-pixel to array Labao Zhang Nanjing University, China

p121

17:00-17:30 Superconducting nanowire single-photon detectors Xiaolong Hu Tianjin Univsersity, China

p121

17:30-17:45 CIOP2018-2018-000094Temporal ghost imaging over long-distance optical fibers Xin Yao Tsinghua University, China

p128

17:45-18:00 CIOP2018-2018-000092Dispersive optics quantum key distribution with quantum light sources based on silicon waveguides Xu Liu Tsinghua University, China

p128

July 10Presider: Chuanfeng Li, University of Science and Technology of China, China

09:00-09:45 Applications of Spontaneous Four Wave Mixing on Quantum CommunicationsWei Zhang Tsinghua University, China

p122

09:45-10:15 Precision metrology using weak measurement Lijian Zhang Nanjing University, China

p122

10:15-10:30 CIOP2018-2018-000143Experimental test of error-disturbance uncertainty relation for continuous variable systemYang Liu Shanxi University, China

p128

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10:30-11:00 Coffee BreakPresider: Wei Zhang, Tsinghua University, China

11:00-11:30 Quantum network and solid state memory Chuanfeng Li University of Science and Technology of China, China

p123

11:30-12:00 Microwave to optical frequency conversion and quantum memory based on erbium doped crystalYuhui Chen University of Otago, New Zealand

p123

12:00-13:30 Lunch BreakPresider: Lijian Zhang, Nanjing University, China

13:30-14:00 Actively Spectral-Multiplexed Heralded Single Photons Source Qiang Zhou University of Electronic Science and Technology of China, China & Univsersity of Calgary, Canada

p124

14:00-14:30 Transverse-mode based quantum integrated photonicsXifeng Ren University of Science and Technology of China, China

p124

14:30-15:00 Photonic Quantum Chips based on Lithium Niobate and SiliconPing Xu National University of Defense Technology, China

p125

15:00-15:15 CIOP2018-2018-000357 Directly generating a three-dimensional maximally entangled state Shilong Liu University of Science and Technology of China, China

p128

15:15-15:30 CIOP2018-2018-000129Quantum secure temporal imagingXin Yao Tsinghua University, China

p129


July 11Presider: Xiaolong Su, Shanxi University, China

09:00-09:30 Recent development on quantum random number generation Xiongfeng Ma Tsinghua University, China

p125

09:30-10:00 Quantum key distribution devices based on hybrid silicon/LiNbO3 platformXinlun Cai Sun Yat-sen University, China

p126

10:00-10:30 Measurement-Device-Independent Quantum Secure Direct Communication with Single Photons and Entangled Photon Pairs Guilu Long Tsinghua University, China

p126

10:30-11:00 Coffee BreakPresider: Xinlun Cai, Sun Yat-sen University, China

11:00-11:30 Amplification and squeezing of Schrödinger cat state with an optical parametric amplifierXiaolong Su Shanxi University, China

p127

11:30-11:45 CIOP2018-2018-000225Fiber-based shot-noise-limited phase tracking using adaptive homodyne detection Lidan Zhang Nanjing University, China

p129

11:45-12:00 CIOP2018-2018-000314Non-Perturbation Calculation For the Dynamic Problem of Quantum Many-Body Systems Xueying Liu Southwest University of Science and Technology, China

p129

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Session 10 Laser Micro-Nano Processing and Fabrication

Session Chairs:

Members:

Meeting Room:

Hongbo Sun Tsinghua University, China

Dong Wu University of Science and Technology of China, China

Feng Chen Shandong University, ChinaPeter Kazansky University of Southampton, UK

Fuxin, 7F

July 9Presider: Hongbo Sun, Tsinghua University, China

13:30-14:15 The art of femtosecond laser writing Peter Kazansky University of Southampton, UK

p130

14:15-14:45 Laser Bionic Micro/nanofabricationFeng Chen Xi'an Jiao Tong University, China

p130

14:45-15:15 Micro welding with fs laser Guanghua Cheng Xi'an Institute of Optics and Precision Mechanics, CAS, China

p131

15:15-15:30 CIOP2018-2018-000309Micro/nanofabrication of chiral structures and furcate pillars by femtosecond optical vorticesJincheng Ni University of Science and Technology of China, China

p137

15:30-16:00 Coffee BreakPresider: Feng Chen, Shandong University, China

16:00-16:30 State-recycling and time-resolved imaging in topological photonic lattices Sebabrata Mukherjee Heriot-Watt University, UK

p131

16:30-17:00 Recording, erasing and rewriting of nanoripples on metal surfaces by ultrashort laser pulsesQuanzhong Zhao Shanghai Institute of Optics and Fine Mechanics, CAS, China

p132

17:00-17:15 CIOP2018-2018-000234High-precision laser fabrication of hard material micro/nanostructuresXueqing Liu Tsinghua University, China

p137

17:15-17:30 CIOP2018-2018-460Joining of carbon fiber reinforced plastic to aluminum alloy by reactive multilayer films and low power semiconductor laser heatingYing Ma Beijing University of Technology, China

p137

July 10Presider: Peter Kazansky, University of Southampton, UK

09:00-09:45 Ultrafast laser inducing nanostructures for unique functions and novel applications Minlin Zhong Tsinghua University, China

p132

09:45-10:15 Direct laser writing with aberration correction Patrick Salter University of Oxford, UK

p133

10:15-10:30 CIOP2018-2018-000303Study of the internal hollow structures fabricated with two typical femtosecond laser systems and their respective applicationsChong Zheng Beijing University of Technology, China

p137


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Presider: Minlin Zhong, Tsinghua University, China11:00-11:30 Laser fabrication of graphene integrated devices

Baohua Jia Swinburne University of Technology, Australiap133

11:30-12:00 SLM-based high-efficiency 3D Femtosecond laser microfabrication for microoptical and microfluidic applicationsDong Wu University of Science and Technology of China, China

p134

12:00-13:30 Lunch BreakPresider: Patrick Salter, University of Oxford, UK

13:30-14:00 Advanced functionality of material induced by femtosecond laser pulse Yasuhiko Shimotsuma Kyoto University, Japan

p134

14:00-14:30 Femtosecond laser processing crystal: from semiconductor to dielectricQiang Wu Nankai University, China

p134

14:30-15:00 Single shot compressed ultrafast photographyShian Zhang East China Normal University, China

p135

15:00-15:30 Space-Selective Modification of Glass by Using Femtosecond LaserShifeng Zhou South China University of Technology, China

p135


July 11Presider: Shifeng Zhou, South China University of Technology, China

09:00-09:30 Chemical Etching Assisted Femtosecond Laser Direct WritingQidai Chen Jilin University, China

p136

09:30-10:00 Ultrafast dynamics of femtosecond laser-induced periodic ripplesTianqing Jia East China Normal University, China

p136

10:00-10:15 CIOP2018-2018-000346Single scan femtosecond laser writing of depressed cladding waveguides in ZBLAN glasses Meng Li Peking University, China

p137

10:15-10:30 CIOP2018-2018-000240Diverse microlens arrays utilizing femtosecond laser microprocessingHao Bian Xi'an Jiao Tong University, China

p138

10:30-10:45 CIOP2018-2018-000360 Illumination Uniformity Improvement in Digital Micromirror Devices based Scanning Photolithography System Hua Liu Northeast Normal University, China

p138


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Session 11 Microwave Photonics

Session Chairs:

Members:

Meeting Room:

Xiaoping Zheng Tsinghua University, China

Xihua Zou Southwest Jiaotong University, China

Shilong Pan Nanjing University of Aeronautics and Astronautics, China

Yitang Dai Beijing University of Posts and Telecommunications, China

Thas A Nirmalathas University of Melbourne, Australia

Benxi, 7F

July 9Presider: Xiaoping Zheng, Tsinghua University, China

13:30-14:15 Integrated microwave photonics for microwave signal generation and processing Jianping Yao University of Ottawa, Canada

p139

14:15-14:45 Photonic Microwave Detection and MeasurementXihua Zou Southwest Jiaotong University, China

p139

14:45-15:15 On the phase-shifted photonic analog-to-digital conversionHao Chi Zhejiang University, China

p140

15:15-15:30 CIOP2018-2018-000132Electro-optic mode deflection based on a lithium niobate waveguide with microstructured electrodes Fupeng Tian Jinan University, China

p148

15:30-16:00 Coffee BreakPresider: Jianping Yao, University of Ottawa, Canada

16:00-16:30 Microwave photonic system with bandwidth scalingYitang Dai Beijing University of Posts and Telecommunications, China

p140

16:30-17:00 Tunable Photonic Microwave Generation Using Modulated Period-One Laser DynamicsSze Chun Chan City University of Hong Kong, Hong Kong, China

p141

17:00-17:30 Recent advances in optoelectronics oscillators Ming Li Institute of Semiconductors, CAS, China

p141

17:30-18:00 High-speed high-resolution photonic analog to digital converterWeiwen Zou Shanghai Jiao Tong University, China

p142

July 10Presider: Shilong Pan, Nanjing University of Aeronautics and Astronautics, China

09:00-09:45 Microwave Photonics for High-Frequency Wideband Distributed Phase Coherent Imaging RadarZhangyuan Chen Peking University, China

p142

09:45-10:15 Femtosecond laser-based microwave photonicsJungwon Kim Korea Advanced Institute of Science and Technology, Korea

p143

10:15-10:30 CIOP2018-2018-000368Polarization Controlled Tunable Optoelectronic Oscillator Based on a Phase Modulator and an LCFBGQi Ding Beijing Jiaotong University, China

p148


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Presider: Zhangyuan Chen, Peking University, China11:00-11:30 Photonic Data Compression for High-Frequency Microwave Signal Measurement

Chao Wang University of Kent, UKp143

11:30-12:00 High Density Carriers Transport Mechanism in High Speed and High Power UTC PhotodiodesBing Xiong Tsinghua University, China

p144

12:00-13:30 Lunch BreakPresider: Chao Wang, University of Kent, UK

13:30-14:00 Ultrafast THz Photonic Wireless Communications: 100 Gbit/s and Beyond Xianbin Yu Zhejiang University, China

p144

14:00-14:30 Recent advanced techniques on beam reconfigurable optical wireless system for energy-efficient communication (BROWSE)Zizheng Cao Eindhoven University of Technology, Netherlands

p145

14:30-15:00 Analog Signal Processing Using Polarization-based Photonic Microwave Phase ShiftersYamei Zhang Nanjing University of Aeronautics and Astronautics, China

p145

15:00-15:15 CIOP2018-2018-000372Microwave frequency divider with variable dividing ratio based on a tunable optoelectronic oscillatorHuanfa Peng Peking University, China

p148

15:15-15:30 CIOP2018-2018-000379Microwave signal characterization with a multi-frequency-comb fiber laser Zheng Zheng Beihang University, China

p148

15:30-15:45 CIOP2018-2018-000382Photonics-based Dual-band RF Receiver with Large Crosstalk Suppression Jiang Liu Nanjing University of Aeronautics and Astronautics, China

p148


July 11Presider: Xianbin Yu, Zhejiang University, China

09:00-09:30 Recent Progresses in Microwave Photonics Imaging Radar Shangyuan Li Tsinghua University, China

p146

09:30-10:00 Microwave-photonics fiber sensing techniques Li Xia Huazhong University of Science and Technology, China

p146

10:00-10:30 Optical transmission based on dispersion flattened fiber and few mode fiber Hongjun Zheng Liaocheng University, China

p147

10:30-10:45 CIOP2018-2018-00037520 GHz optical pulse generation based on a 10 GHz optoelectronic oscillator Huanfa Peng Peking University, China

p148


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Session 12 Nano Photonics and 2D Optoelectronics

Session Chairs:

Members:

Meeting Room:

Limin Tong Zhejiang University, China

Wei Fang Zhejiang University, China

Cunzheng Ning Tsinghua University, China & Arizona State University, USAXiaodong Xu University of Washington, USA

Jinzhou, 7F

July 9Presider: Xiaodong Xu, University of Washington, USA

13:30-14:15 Challenges in Optoelectronics and Possible Nano-Solutions Cunzheng Ning Tsinghua University, China & Arizona State University, USA

p149

14:15-14:45 Optical Control of Interlayer Valley Excitons and Spin Transfer in MoSe2-WSe2 HeterostructuresJohn Schaibley The University of Arizona, USA

p149

14:45-15:15 Strong light-matter coupling in 2D materialsXiaoze Liu University of California, Berkeley, USA

p150

15:15-15:30 CIOP2018-2018-000316 High - Performance Single - Crystalline Perovskite Thin - Film Photodetector Zhenqian Yang Peking University, China

p157

15:30-16:00 Coffee BreakPresider: John Schaibley, The University of Arizona, USA

16:00-16:30 Nonlinear-like Optics in Liquid Suspensions of Two-dimensional NanomaterialsJiming Bao University of Houston, USA

p150

16:30-17:00 Optoelectronic and electronic device applications of 2D MaterialsShijun Liang Nanjing University, China

p151

17:00-17:30 CIOP2018-2018-000136SnS2 nanosheet coated microfiber knot resonator for all-optical control of light functionality with fast response Zhongmin Wang Jinan University, China

p157

July 10Presider: Limin Tong, Zhejiang University, China

09:00-09:45 Valley-Polarized Excitons in 2D Semiconductor Heterostructures Xiaodong Xu University of Washington, USA

p151

09:45-10:15 Chaos-assisted momentum transformation in a high-Q microresonator Yun-Feng Xiao Peking University, China

p152

10:15-10:30 CIOP2018-2018-000068 Influence of the evanescent waves on the imaging characteristics of microspheres Fengge Wang Nanjing Normal University, China

p157


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Presider: Wei Fang, Zhejiang University, China11:00-11:30 Cavity Quantum Electrodynamics in Photonic structures

Ying Gu Peking University, Chinap152

11:30-12:00 PerovLight: Harness Strong Light-Matter Coupling in Perovskite Materials towards Coherent Excitonic and Polaritonic Lasers Qihua Xiong Nanyang Technological University, Singapore

p152

12:00-12:15 CIOP2018-2018-000202Graphene-Coated Microsphere Resonators and Their Photothermal Effect Chenzhi Yuan Tsinghua University, China

p157

12:00-13:30 Lunch BreakPresider: Cunzheng Ning, Tsinghua University, China & Arizona State University, USA

13:30-14:00 Room-temperature continuous-wave operation of perovskite lasers Qing Gu The University of Texas at Dallas, USA

p153

14:00-14:30 Electrically-driven single-photon sources based on colloidal quantum dotsWei Fang Zhejiang University, China

p153

14:30-15:00 Exciton-Polaritons in Atomically Thin Crystals on Sub-Wavelength Thick Photonic ResonatorsLong Zhang University of Michigan, USA

p154

15:00-15:15 CIOP2018-2018-000065 Largely tunable compact coupler with high directionlity Futai Hu Tsinghua University, China

p157

15:15-15:30 CIOP2018-2018-000008 Nano-photonics from nanoparticles to nanowires Xianguang Yang Jinan University, China

p158


July 11Presider: Renmin Ma, Peking University, China

09:00-09:30 Infrared photodetector based on 2D materials: progress, challenges, and opportunitiesWeida Hu Shanghai Institute of Technical Physics, CAS, China

p155

09:30-10:00 Two-Dimensional Material OptoelectronicsChen Chen Yale University, USA

p155

10:00-10:15 CIOP2018-2018-000187All-dielectric valley photonic crystals: Paving the way to topological nanophotonicsJian-Wen Dong Sun Yat-Sen University, China

p158

10:15-10:30 CIOP2018-2018-000146Doped-polymer microfiber: an assistant waveguide for assembling photonic components with fluorescent indication Dingxin Liang Huaqiao University, China

p158

10:30-11:00 Coffee BreakPresider: Weida Hu, Shanghai Institute of Technical Physics, CAS, China

11:00-11:30 Chiral-reversing vortex radiation from a single emitter by eigenstates phase locking Renmin Ma Peking University, China

p156

11:30-11:45 CIOP2018-2018-000066Reduced distortion in high-index microsphere imaging by partial immersion Songlin Yang Nanjing Normal University, China

p158

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Session 13 Cavity Optomechanics

Session Chairs:

Meeting Room:

Chunhua Dong University of Science and Technology of China, ChinaKaiyu Cui Tsinghua University, China

VIP, 7F

July 9Presider: Chunhua Dong, University of Science and Technology of China, China

13:30-14:15 The Physics and Applications of high Q optical microcavities: Cavity Quantum Optomechanics Tobias J. Kippenberg Ecole polytechnique fédérale de Lausanne (EPFL), Switzerland

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14:15-14:45 Topological and nonreciprocal dynamics in an optomechanical system Haitan Xu Harvard University, USA

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14:45-15:15 Radiation Pressure Induced Four-Wave Mixing Yongmin Li Shanxi University, China

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15:15-15:30 CIOP2018-2018-000383Dual lasing phononic modes in single optomechanical nanobeam Qiancheng Xu Tsinghua University, China

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15:30-16:00 Coffee BreakPresider: Tobias J. Kippenberg, Ecole polytechnique fédérale de Lausanne (EPFL), Switzerland

16:00-16:30 Cavity optomechanical systems with ultralow masses based on photonic crystal cavities Jinsong Xia Huazhong University of Science and Technology, China

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16:30-17:00 A phonon laser operating at the exceptional point Jing Zhang Tsinghua University, China

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17:00-17:30 Optical nonreciprocity in optomechanical systems Yong Li Beijing Computational Science Research Center, China

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July 10Presider: Haitan Xu, Harvard University, USA

08:30-09:00 Optomechanically-induced transparency enhanced by dissipation Yongchun Liu Tsinghua University, China

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09:00-09:45 Phononic Quantum Networks of Solid-State Spins in Diamond Hailin Wang University of Oregon, USA

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09:45-10:15 Single-Photon-Triggered Quantum Phase Transition Xinyou Lv Huazhong University of Science and Technology, China

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10:15-10:30 CIOP2018-2018-000322Interaction between an Optomechanical Crystal Cavity and a Coupled Tapered Fiber Jian Xiong Tsinghua University, China

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Presider: Kaiyu Cui, Tsinghua University, China11:00-11:30 Phase-controlled phonon laser

Yanlei Zhang Fuzhou University, Chinap163

11:30-12:00 Levitated optomechanics for precise measurement Zhangqi Yin Tsinghua University, China

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12:00-13:30 Lunch BreakPresider: Hailin Wang, University of Oregon, USA

13:30-14:15 Optomechanically induced non-reciprocity Chunhua Dong University of Science and Technology of China, China

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14:15-14:45 Quantum transistor with a double-cavity-optomechanical system Ling Zhou Dalian University of Technology, China

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14:45-15:15 Optomechanical Crystal Nanobeam Cavities with Phonon Lasing Kaiyu Cui Tsinghua University, China

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15:15-15:45 On-chip ultraprecise optomechanical magnetometry Beibei Li University of Queensland, Australia

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Plenary Talks

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Plenary Talk

Min Gu

RMIT University, Australia

Professor Gu is Distinguished Professor and Associate Deputy Vice-Chancellor at RMIT University and was a Laureate Fellow of the Australian Research Council. He is an author of four standard reference books and has over 470 publications in nano/biophotonics. He is an elected Fellow of the Australian Academy of Science as well as the Australian Academy of Technological Sciences and Engineering. He is also an elected fellow of the AIP, the OSA, the SPIE, the InstP, and the IEEE. He was President of the International Society of Optics within Life Sciences, Vice President of the Board of the International Commission for Optics (ICO) (Chair of the ICO Prize Committee) and a Director of the Board of the Optical Society of America (Chair of the International Council). He was awarded the Einstein Professorship, the W. H. (Beattie) Steel Medal, the Ian Wark Medal, the Boas Medal and the Victoria Prize for Science and Innovation. Professor Gu was elected as a Foreign Fellow of the Chinese Academy of Engineering in 2017.

Angular momentum multiplexing of broadband light at a nanoscaleOptical multiplexing—a technique in which multiple individual optical signals encoded in physical dimensions of light, including time, space, wavelength, polarization and angular momentum, are processed in parallel—has played an indispensable role in information optics. The possibility of manipulation of optical angular momentum at the nanoscale is of crucial importance for both fundamental research and many emerging applications. However, it is still fundamentally challenging to achieve on-chip angular momentum multiplexing due to the extrinsic nature of orbital angular momentum associated with a helical wavefront. Here we present an entirely new concept of nanoplasmonic multiplexing of angular momentum through the nonresonant angular momentum mode-sorting sensitivity by nanoring slit waveguides on tightly-confined plasmonic angular momentum modes, leading to on-chip angular momentum multiplexing of ultra-broadband light. This technology provides a horizon for high-capacity nanoscale information optics in telecommunications, quantum information processing, chemical sensing, display and metrology.

Biography

Plenary Talks

Plenary


Plenary Talk

Yidong Huang

Tsinghua University, China

Yidong, Huang received the B.S. and Ph.D. degrees in optoelectronics from Tsinghua University, Beijing, China, in 1988 and 1994, respectively. From 1991 to 1993, she was with Arai Laboratories, Tokyo Institute of Technology, Japan, on leave from the Tsinghua University. In 1994, she joined the Photonic and Wireless Devices Research Laboratories, NEC Corporation, where she was engaged in the research on semiconductor laser diodes for optical-fiber communication and received “Merit Award” and “Contribution Award” from NEC Corporation in 1997 and 2003, respectively. She joined the Department of Electronics Engineering, Tsinghua University in 2003, as a professor, and be appointed by the Changjiang Project and the National Talents Engineering in 2005 and 2007, respectively. She was Vice Chairman of the Department from 2007-2012 and has been the Chairman of the Department from 2013. She is presently engaged in research on nano-structure optoelectronics. Professor Huang authored/co-authored more than 300 journal and conference papers. She is a senior member of the IEEE, and the deputy member of Director Board of Chinese Optical Society.

Manipulation of Generalized Energy-bands for New Functional DevicesAll the optoelectronic devices operate based on the interaction between light and matter. The emergence of the next-generation optoelectronic devices depends on our understanding and discovering of new mechanism of the light-matter interaction. In the last decades or so, a great deal of research and development work has been carried out on the nanophotonics and demonstrated a lot of novel optoelectronic characteristics. It is necessary to go beyond individual devices and search for a more general rule behind each device and phenomenon.

In analogy to the energy-bands of electrons, the energy-momentum relations of other fundamental particles (such as photons), quasi-particles (such as phonons), and polaritons, which are the couple systems among these particles, can be considered as “general energy-bands”. One of the essences of the novel optoelectronic characteristics in nanostructure lies in the ability to manipulate this kind of general energy-bands of various fundamental particles and their associated quasi-particles. This paper summarizes our research work on nanophotonics from the perspective of general energy-bands manipulation. Here the general energy-bands of photon, phonon, and SPP were manipulated by different nanostructures for realizing novel optoelectronic characteristics. We demonstrated an ultra-compact optical switch based on photonic crystal slow light waveguide, a phonon laser with optomechanical crystal nanobeam cavity, and threshold-less Cherenkov radiation in multilayer hyperbolic metamaterial.

Biography

Plenary Talks

Plen

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Plenary Talk

Xiaoyi Bao

University of Ottawa, Canada

Xiaoyi Bao is the Canada Research Chair professor (Tier I) in Fiber Optics and Photonics in Center for Research in Photonics, physics department, University of Ottawa, Canada. Her research interests range from study of nonlinear effects in fibers to design and fabricate the hybrid specialty fiber waveguides to make fiber device, lasers and sensors. She is a fellow of Royal Society of Canada (RSC), OSA and SPIE.

Enabling fiber technology for ultrasensitive sensing, frequency comb and Gbps random number generationThe narrow peak in FBG can be used as a filter and its peak wavelength is sensitive to temperature and strain for sensing purpose. Its peak wavelength dependence on temperature and strain is determined by the refractive index change of SiO2 fiber, which sets the limit for sensing sensitivity due to the spectral resolution detection ability to detect wavelength shift. There are two approaches to enhance this sensitivity: to change the materials of the fiber and to vary the waveguide property via mode change. To achieve both targets we designed the dual As2Se3 core with PMMA as cladding that support super-modes to form high contrast dual mode interferometer, which is then inscribed with the photosensitive gratings to enhance index modulation and coupling and leading to broadband phase matching condition, so that dispersion can be used as a new sensing parameter. Such design brings unique features of ultrahigh temperature sensitivity, multi-parameter sensing, and larger strain range.

Enhancing light scatterings in optical fibers by random index periods can lead to broadband grating, the irregular periods with uneven index modulations forms local interference pattern within random fiber grating length (a few centimeters). This provides distinct feature due to multiple Rayleigh scattering instead of in-phased reflection in standard FBGs. Such grating can be used as feedback to manipulate laser coherence and modes to create Gb/s random number generation, simultaneous high order Stokes waves lasing creates frequency comb, tunable microwave generation; and multi-parameter sensing based on different spectral section of the random gratings.

Biography

Plenary Talks

Plenary


Plenary Talk

Dieter Bimberg

TU Berlin, GermanyCIOMP, CAS, China

Dieter H. Bimberg is the Founding Director of the Center of Nanophotonics at TU Berlin. He was chairman of the department of solid state physics at TUB from 1991 to 2012 and was holding the chair of Applied Physics until 2015. Since 2018 he is the director of the “German-Chinese Center for Green Photonics” of CAS at CIOMP Changchun. His research interests include the growth and physics of nanostructures and nanophotonic devices, ultrahigh speed and energy efficient photonic devices for information systems, single/entangled photon emitters for quantum cryptography and ultimate nanoflash memories based on quantum dots. He has authored more than 1500 papers, 36 patents, and 7 books resulting in more than 56,000 citations worldwide and a Hirsch factor of 105 (@ google scholar). His honors include the Russian State Prize in Science and Technology 2001, his election to the German Academy of Sciences Leopoldina in 2004, to the Russian Academy of Sciences in 2011, to the American Academy of Engineering in 2014, to the American Academy of Inventors 2016, as Fellow of the American Physical Society and IEEE in 2004 and 2010, respectively, the Max-Born-Award and Medal 2006, awarded jointly by IoP and DPG, the William Streifer Award of the Photonics Society of IEEE in 2010, the UNESCO Nanoscience Award and Medal 2012, Heinrich-Welker-Award 2015 and Nick Holonyak jr. Award of OSA in 2018.

Nanophotonics for a Green InternetThe energy required to transmit information as encoded optical and electrical data bits within and between electronic and photonic integrated circuits, within and between computer servers, within and between data centers, and ultimately nearly instantly across the globe, from any one point to another, must be minimized. This energy spans between typically tens of picojoules-per-bit to well over tens of millijoules-per-bit for the intercontinental distances. We seek to meet the exploding demand for information within the terrestrial resources available but more importantly as a common sense measure to reduce costs and to become stewards of a perpetual Green Internet. The concept of a Green Internet implies a collection of highly energy-efficient, independent, and ubiquitous information systems operating with minimal impact on the environment via natural or sustainable energy sources. A key enabling optical component for the Green Internet is the vertical-cavity surface-emitting laser (VCSEL). We review our research work on energy-efficient VCSELs for application as light-sources for optical interconnects and optical fiber data communications between 850 and 1310 nm. We present VCSEL designs, design principles, and operating methods that enable data communication systems capable of error-free operation at bit rates exceeding 50 gigabits-per-second with energy efficiencies approaching 100 fJ-per-bit.

For a review on Green Photonics see: G.Eisenstein and D.Bimberg, eds. „Green Photonics and Electronics”, Springer, Cham 2017

Biography


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Invited Talks

3D photonic-electronic integrated circuits on silicon

S. J. Ben YooUniversity of California, Davis, USA

We discuss design, fabrication, and integration methods of 3D microsystems consisting of silicon photonic and electronic components integrated in 3D on a silicon substrate. Their unique advantages and functionalities for future computing, networking, and imaging applications will be discussed.

Modern information systems demand high-capacity and energy-efficient information processing in a compact and integrated platform. 3D electronic-photonic-integrated-circuits (3D EPICs) expect to realize unprecedented functionality and capacity through combining ‘the best of both worlds’ of photonic and electronic technologies. This paper provides some of the key applications in 3D EPIC microsystems realized on silicon platforms for computing, networking, and imaging applications.

In computing, we will discuss a new generation of von Neumann and non von Neumann computing systems involving nanophotonic-nanoelectronic integration in 3D. In networking, we will cover elastic-optical-networking systems enabled by coherent and dynamic optical arbitrary waveform generation and measurements in the temporal, spectral, and spatial domains. In imaging, we will demonstrate a new generation of LIDAR beam steering enabled by 3D EPICs for ultrahigh resolution as well as a SPIDER imager (Segmented Planar Imaging Detector for Electro-optical Reconnaissance) consisting of 3D EPICs to realize a new generation of high-resolution interferometric telescope with ~ two orders of magnitude reduction in size, weight, and power compared to panchromatic counterparts.

Biography Education Ph. D. in Electrical Engineering with Minor in Physics, Stanford University, CA, 1991 M.S. in Electrical Engineering, Stanford University, CA, 1986 B.S. in Electrical Engineering (Distinction), Stanford University, CA, 1984 Professional Experience Professor, University of California, Davis, Electrical & Computer Engineering, 2002-current Director, Center for Information Technology Research in the Interest of Society, UCDavis, 2001-2011 Associate Professor, University of California, Davis, Electrical & Computer Engineering, 1999-2002 Senior Member of Technical Staff, Bellcore, Red Bank, NJ, 1991-1999

Waveguiding in valley photonic crystals

Baile ZhangNanyang Technological University, Singapore

The valley is a binary degree of freedom widely occurring in two-dimensional honeycomb semiconductor crystals. Its use in information processing and storage has led to a blooming field of “valeytronics”, similar to how spin is used in spintronics. While there have been many proposals on constructing photonic “spins” to simulate topological insulators, the valley DOF is still largely isolated from photonic crystal applications. In fact, it has already been shown in condensed matter systems that valley DOF has the potential to produce topological transport for electrons without dissipation. We will talk about how to transfer this topological valleytronics into photonics. Furthermore, we will talk about the topological transition that is caused by the completion between spin-orbit coupling and inversion symmetry breaking.

BiographyDr. Baile ZHANG is an Associate Professor in the Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, at Nanyang Technological University, Singapore. He received his Ph.D. in 2009 from MIT, following his B.S. degree in 2003 and M. S. degree in 2006 from Tsinghua University in Beijing, all majored in Electrical Engineering.



Session 1


Silicon photonic modulators for higher-modulation formats

Wei ShiLaval University, Canada

The exponential growth of global data traffic to meet the demand of cloud computing, mobile Internet, Internet of things, and artificial intelligence, drives optical networks towards a single line rate of 400G to 1Tb and beyond. On a CMOS-compatible photonic integration platform, we have examined the power penalty induced by all-silicon optical modulators in non-coherent and coherent optical links. The system-oriented optimization approach has enabled record performance in higher-order QAM transmissions for up to 720 Gb/s over a long distance of up to 1,000 kilometers in a SSMF EDFA link. We have demonstrated that we can reap the myriad advantages of SiP integration for transmission at extreme bit rates.

BiographyWei Shi is an Associate Professor in the Department of Electrical and Computer Engineering, Université Laval, Québec, QC, Canada. He received the Ph.D. degree in electrical and computer engineering from the University of British Columbia, Vancouver, BC, Canada, in 2012, where he was awarded the BCIC Innovation Scholarship for a collaboration entrepreneurship initiative. Before joining Université Laval in 2013, he was a researcher at McGill University, Montreal, QC, Canada, where he held a Postdoctoral Fellowship from the Natural Sciences and Engineering Research Council of Canada (NSERC). His current research focuses on integrated photonic devices and systems, involving silicon photonics, nanophotonics, CMOS-photonics co-design, high-speed optical communications, chip-scale lasers, and optical sensors. He currently directs a NSERC Strategic Partnership Grants (SPG) project on hybrid photonic integration and a NSERC Collaboration Research and Development Grants (CRD) project on high-speed silicon photonic transmitters for advanced modulation formats.

Scaling Modulator Performance with Electronic Photonic Synergy

Ke LiUniversity of Southampton, UK

Compared with other types of silicon photonics-based optical modulators, MZM (Mach–Zehnder modulators) offers robust operation due to their wide optical bandwidth. However, the relatively low drive power efficiency is a major concern for high density multiple channel applications.

In this work, a fully customized CMOS driver is co-designed with a U-shape silicon MZM. Measurement results show that the integrated transmitter can operate up to 40Gb/s and the power consumption can be reduced to less than 100mW. The best-recorded power efficiency is 1.5pJ/bit when operating at 22Gb/s, provided that 3dB extinction ratio is maintained.

In addition, the proposed design avoids any off-chip components hence reducing the system complexity for compact integration. In particular, both wire-bonding and flip-chip bonding techniques have been adopted for the optoelectronic integration. These two integration approaches are discussed and compared based on a variety of measurement results.

BiographyKe Li (M’10) received his MSc. degree in radio-frequency communications engineering and the Ph.D. degree in Electronic engineering from the University of Southampton U.K, in 2005 and 2010, respectively. He has ten years (16 CMOS chips, 2 photonics chips) silicon proven experience in fully customized analogue and microwave signals (>56Gb/s) CMOS IC design down to 28nm by using variety industry standard processes.

He joined the silicon photonics group in Optoelectronics Research Centre, University of Southampton since 2011. His Research interest includes the co-design of optical and electrical circuit; design of high speed modulator driver and TIA circuit; wire-bonding and flip-chip bonding techniques for optical-electrical integration; modelling and design of ultra-wide band VCO and PLL circuit.


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Room-Temperature Operation of Silicon-Nanobeam Laser Based on 2D-Monolayer MoTe2

Yongzhuo LiTsinghua University, China

Transition metal dichalcogenides (TMDs) have attracted a great deal of attention for potential applications in a variety of areas including integrated optoelectronic devices. Most of TMDs transform from indirect to direct band-gap semiconductors when their thickness is reduced to a monolayer. Therefore, monolayer TMDs could serve as efficient optical gain materials, especially for making nanolasers with the smallest possible volume of active medium. Such lasers with small gain media could be important as light sources for integrated photonics for future on-chip interconnects, where extreme low energy consumption is required. Furthermore, the large exciton binding energy in monolayer TMDs exceeding 0.5 eV makes them important as potential candidate for exciton lasers at room temperature. So far, lasers based on monolayer TMDs have been reported at cryogenic temperatures, employing a monolayer WSe2 coupled onto a GaP photonic-crystal cavity, or a monolayer WS2 with a Si3N4 micro-disk. One of the possible reasons for the low temperature operation is the low Q-cavity as a result of the choices of cavity materials and structures and the associated fabrication precision. Here, we demonstrate the first room-temperature operation of a nanolaser using a monolayer molybdenum ditelluride nanolaser combined with a silicon nanobeam cavity. The emission wavelength is at 1132 nm with a linewidth of 0.202 nm and a Q factor of 5605. The room temperature operation shows the feasibility of TMDs nanolaser towards practical application. In addition, the silicon nanobeam cavity would make such 2D-based lasers more attractive for silicon photonics integration.

BiographyYongzhuo Li is a research assistant at Tsinghua University. He received his PhD degree in the Department of Electronic Engineering of Tsinghua University in 2014. His current research interest is in the area of 2D materials based photonic devices, nano/micro-structure III-V active devices, and nanolasers.

Broadband optical WDM de multiplexing based on silicon substrates

Zhiyong LiInstitute of Semiconductors, CAS, China

Low-cost highly integrated wavelength division (de)multiplexing (WDM) systems provide an effective approach to greatly increase the capacity of optical fiber communication system. To improve channel crosstalk and operation bandwidth, we demonstrate a wavelength (de)multiplexer consisting of cascaded microresonator arrays in photonic integrated circuits. An optical wavelength demultiplexing is demonstrated on a silicon-on-insulator substrate. The performance of WDM add/drop demultiplexer is improved, such as channel crosstalk and broad bandwidth, due to cascaded resonators with optimized coupling. We have demonstrated a four-channel silicon wavelength (de)multiplexer for WDM applications. The four-channel dropping filters have a free spectral range of 18 nm, an average channel spacing of 4.5 nm, an ultra-wide 3dB bandwidth of about ~2 nm, high out-of-band rejection ration ~40 dB, low channel cross talk of no more than -39 dB and low channel dropping loss < 5 dB.

BiographyZhiyong Li received the Master’s degree from the College of Precision Instrument and Optoelectronic Engineering of Tianjin University, Tianjin, China, in 2004, and received the Doctoral degree in microelectronics and solid-state electronics from the Institute of Semiconductors (IS), Chinese Academy of Sciences (CAS), Beijing, China, in 2007. From 2007 to 2008, he was a visiting researcher in the Institute for Micro-structural Sciences, Canada National Research Council, Ottawa, ON, Canada. From 2008 to 2011, he was an assistant researcher in IS-CAS. In the recent years since, he is currently an Associate Professor, focusing on Silicon Photonics and integrated optics, including SOI waveguide devices (modulators, switches, and couplers) and their applications in many fields such as optical interconnects, optical sensing, and optical microwaves. Till now, he has published more than 70 papers and joins in translations and co-editions of several professional books.


Session 1


High-performance III-V quantum-dot lasers directly grown on silicon

Huiyun LiuUniversity College London, UK

Silicon is one of the most important semiconductor materials. Although it has been the mainstays for modern electronics, it is not widely used for light emitting sources because bulk silicon is an inefficient emitter, a result of indirect bandgap. Direct epitaxial growth of III-V nanostructures on silicon substrates is one of the most promising candidates for realizing photonic devices on a silicon platform. In this presentation, the growth of III-V quantum dots - semiconductor nanosized crystal - on Si substrates and their applications in communications will be discussed. I will describe new growth techniques developed at University College London for the formation of III-V buffer layers grown directly on Ge, Si and Ge/Si substrates by Molecular Beam Epitaxy (MBE). We demonstrated the first practical silicon-based laser diode with pulsed (cw) lasing up to 120 oC (75 oC), with an ultra-low cw threshold current density 62.5 A/cm2, a high output power exceeding 105 mW at RT, and a long extrapolated lifetime of over 100,158 hours. These results are a major step towards silicon-based photonics and photonic-electronic integration, and provide a route towards cost-effective monolithic integration of III-V devices on Si platform.

BiographyHuiyun Liu received the Ph.D. in Semiconductor Science from the Institute of Semiconductor, Chinese Academy of Sciences. After re-ceiving his PhD, he joined the EPSRC National Centre for III-V Technologies at University of Sheffield in August 2001. He was respon-sible for the development of Molecular Beam Epitaxy growth of semiconductor materials for the UK academic and industrial research community. In 2007, he was awarded Royal Society University Research Fellow and started his academic career in the Department of Electronic and Electrical Engineering at UCL as a Senior Lecturer. In 2012, he was appointed to a Chair in Semiconductor Photonics. He has co-authored over 200 peer-reviewed journal papers in the area of semiconductor materials and devices. His general interest con-centrates on the nanometre-scale engineering of low-dimensional semiconductor structures (such as quantum dots, quantum wires, and quantum wells) by using molecular beam epitaxy and the development of novel optoelectronic devices including lasers, detectors, and modulators by developing novel device process techniques.

Photonic Integrated Chips for Optical Computing

Xinliang ZhangHuazhong University of Science and Technology, China

Optical logic gate has been extensively studied as a basic element of optical computing in recent years. Compared with its electrical counterpart, there are still many factors such as device size, programmability, cascadability, power consumption and so on which limit its application. Here, aiming at these problems, we develop a programmable optical logic chip based on the integrated InP platform which consists of delay interferometers (DIs) and semiconductor optical amplifiers (SOAs), which is capable of realizing different logic minterms as well as their combinations flexibly.

System of ordinary differential equations (SODE) is one of the most important mathematical models in describing dynamic behaviors in various systems, especially those require observability and controllability such as multiple input multiple output systems and modern control systems. Solving the SODEs faster with smaller energy consumptions is essential for analyzing these systems more efficiently. Here, we show three kinds of optical solvers which can be used to solve SODEs with different forms and dimensions.

BiographyProf. Xinliang Zhang received the B.S. degree and the Ph.D. degree from Huazhong University of Science and Technology (HUST), China, in 1992 and 2001. He became a full professor of School of Optical and Electronic Information, HUST in 2004, and now he is also a full professor of Wuhan National Laboratory for Optoelectronics (WNLO). Currently, He is the Dean of School of Optical and Electronic Information, the vice director of WNLO and the head of research group “Photonic Interconnection and Information Processing：Devices and Subsystems”. His research areas cover semiconductor optoelectronic devices for optical interconnection and optical signal processing. He has over 300 publications in prestigious international journals and conferences, including over 200 IEEE Letters / Journals, Optics Letters or Optics Express papers and 30 OFC/ECOC papers. He holds 15 Chinese patents and 1 US patent. He is Fellow of OSA and senior member of IEEE.


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Silicon Nanocavity Modulators: Toward Atto-joule/bit Energy Efficiency

Alan X. WangOregon State University, USA

With the exponential growth of bandwidth requirement of data centers and supercomputers, energy already limits our ability to process and communicate information. There is an urgent need to develop low-energy photonic devices and systems that can push the energy efficiency to attojoule/bit level. Traditional silicon photonic modulators rely on the plasma dispersion effect by free-carrier injection or depletion, which occupies a large footprint and consumes relatively high energy for optical interconnects. Here we report an ultra-compact electro-optic modulator with total device footprint of 0.6 × 8 μm2 by integrating voltage-switched transparent conductive oxide with one-dimensional silicon photonic crystal nanocavity. The active modulation volume is only 0.06 um3, which is less than 2% of the lambda-cubic volume. The device operates in the dual mode of cavity resonance and optical absorption by exploiting the refractive index modulation from both the conductive oxide and the silicon waveguide induced by the applied gate voltage. Such a metal-free, hybrid silicon-conductive oxide nanocavity modulator also demonstrates only 0.5 dB extra optical loss, high E-O efficiency of 400pm/V, and low energy consumption of 3fJ/bit. The combined results achieved through the holistic design opened a new route for the development of next generation electro-optic modulators that can be used for future on-chip optical interconnects.

BiographyAlan Xiaolong Wang is an Associate Professor of the School of Electrical Engineering and Computer Science at Oregon State University. He received his B.S. degree from Tsinghua University, and M.S. degree from the Institute of Semiconductors, Chinese Academy of Sciences, Beijing, P.R. China, in 2000 and 2003, respectively, and his Ph.D. degree in Electrical and Computer Engineering from the University of Texas at Austin in 2006. From January 2007 to August 2011, he was with Omega Optics, Inc., Austin, Texas, where he served as the Chief Research Scientist with more than 4 million dollars of research grants from various government agencies, including the National Science Foundation (NSF), the Air Force Office of Scientific Research (AFOSR), the Defense Advanced Research Project Agency (DARPA), the Army Research Office (ARO), the Environmental Protection Agency (EPA), and the National Institutes of Health (NIH). He joined OSU as an Assistant Professor in August 2011 and was promoted to Associate Professor in 2017. His current research activities at OSU are sponsored by NSF, NIH, AFOSR, Oregon Nanoscience and Microtechnologies Institute (ONAMI), the National Energy Technology Laboratory (NETL) of the Department of Energy (DoE), and industrial sponsors such as Hewlett Packard, and Marine Polymer Technologies.

He has more than 80 journal publications and more than 80 conference presentations (including 14 plenary/invited presentations), and also holds six U.S. patents. He is a Senior Member of the Institute of Electrical and Electronics Engineers (IEEE), the Optical Society of America (OSA), and the International Society for Optics and Photonics (SPIE).

High brightness diode lasers and off-axis spectral beam combining

Cunzhu TongChangchun Institute of Optics, Fine Mechanics and Physics, CAS, China

Spectral beam combining (SBC) is a simple and efficient way to realize high brightness lasers. However, its realizable beam quality is limited by the single emitters. Off-axis SBC is able to break this limit, but the efficiency is low. In this talk, a modified off-axis SBC based on the concept of selective feedback was proposed and the slope efficiency of combining was enhanced by 21%. The power exceeds 20 W with a brightness of 190 MWcm-2str-1 were realized based on a commercial broad-area diode laser array. To improve the combining efficiency, an off-axis SBC approach based on a V-shaped external cavity (VSBC) was demonstrated. The advantages of simple setup, output coupler free, tunable beam quality and emission power over traditional SBC were presented. The beam quality exceeds single emitter with the similar energy conversion efficiency to the traditional SBC. The M2 values of 2.31×3.76 and a brightness of 122 MWcm-2sr-1 were realized.


Session 1


BiographyCunzhu Tong, professor of Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS). He received his Ph.D. degree from the Institute of Semiconductors, CAS in 2005, and worked as a postdoc at Nanyang Technological University, Singapore and University of Toronto, Canada, from 2005 to 2010. He became the Hundred Talents Program professor of CAS in 2010 and the distinguished elite professor of CAS in 2015. Now he is the deputy director of State Key Lab of Luminescence and Applications, and also a reviewer of the National Key Research and Development Plan of China. He won the Excellent Award for Hundred Talents Program of CAS, the outstanding young scientist award (selected by SCIENTIFIC CHINESE) and the Important Achievements in China Optics 2015. He has authored and co-authored over 90 refereed journal papers. His current research interests include the photonic crystal lasers, beam combining and disk lasers.

Integrated silicon photonic devices for signal multiplexing/de-multiplexing and switching

Yikai SuShanghai Jiao Tong University, China

We present our recent results on silicon photonic devices for optical signal multiplexing/de-multiplexing and switching in wavelength, polarization, and mode domains. We experimentally demonstrate 1) nanobeam devices for wavelength filtering, interleaving and switching, 2) directional couplers for polarization/mode processing, and 3) subwavelength grating devices for mode multiplexing/de-multiplexing.

BiographyYikai Su ( 苏翼凯 ) received the Ph.D. degree in EE from Northwestern University, Evanston, IL, USA in 2001. He worked at Crawford Hill Laboratory of Bell Laboratories before he joined the Shanghai Jiao Tong University, Shanghai, China, as a Full Professor in 2004. His research areas cover silicon photonic devices for information transmission and switching. He has over 300 publications in international journals and conferences, with more than 3500 citations (scopus search). He holds 6 US patents and ~50 Chinese patents.

Prof. Su served as an associate editor of APL Photonics (2016-2018) and Photonics Research (2013-2016), a topical editor of Optics Letters (2008-2014), a guest editor of IEEE JSTQE (2008/2011), and a feature editor of Applied Optics (2008). He is the chair of IEEE Photonics Society Shanghai chapter, a general co-chair of ACP 2012, a TPC co-chair of ACP 2011 and APCC 2009. He also served as a TPC member of a large number of international conferences including CLEO (2016-), ECOC (2013-2016), OFC (2011-2013), OECC 2008, CLEO-PR 2007, and LEOS (2005-2007).

Structuring Light by Structured Devices: Progress and Prospects

Jian WangHuazhong University of Science and Technology, China

Shaping the spatial structure of lightwaves enables the generation of various special light beams. Generally, these special light beams can be called structured light, also known as tailored light, shaped light, sculpted light or custom light. Structured light with spatially variant amplitude/phase/polarization has grown into a significant field, giving rise to many developments in astronomy, manipulation, microscopy, imaging, metrology, sensing, nonlinear interactions, quantum science and optical communications.

To facilitate diverse applications with structured light, flexible manipulation of structured light is of great importance. Very recently, metamaterials and metasurfaces provide an alternative approach to flexibly manipulate the structured light.

In this talk, we focus on harnessing metasurfaces for structured light manipulation. We review recent advances in shaping structured light by metasurfaces on different platforms (metal, silica, silicon, fiber). Structured light manipulation based on plasmonic metasurfaces, reflection-enhanced plasmonic metasurfaces, metasurfaces on fiber facet, dielectric metasurfaces, and sub-wavelength structures on silicon are presented, showing impressive performance. Future trend, challenges, perspectives and opportunities are also discussed.


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BiographyJian Wang received the Ph.D. degree in physical electronics from the Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China, in 2008. He worked as a Postdoctoral Research Associate in the optical communications laboratory in the Ming Hsieh Department of Electrical Engineering of the Viterbi School of Engineering, University of Southern California, Los Angeles, California, USA, from 2009 to 2011. He is currently a professor at the Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China.Jian Wang has devoted his research efforts to innovations in photonic integrated devices and frontiers of high-speed optical communications and optical signal processing. He has more than 300 publications in total, including 6 book chapters, 5 special issues, 7 review articles, 6 invited papers, 55 tutorial/keynote/invited talks (invited talk at OFC2014, tutorial talk at OFC2016), 8 postdeadline papers, and more than 100 journal papers published on Science, Nature Photonics, Light: Science & Applications, Laser & Photonics Reviews, Scientific Reports, Optics Express, Optics Letters, etc.

Jian Wang serves as the Topical Editor of Optics Letters, Guest Editors of Light: Science & Applications, Optics Express and Optics Communications. Jian Wang is also the frequent reviewer of for more than 30 journals such as Nature Communications, Light: Science & Applications, Physical Review Letters, Optica, Scientific Reports, Optics Express, Optics Letters, etc.

Polarization Independent Silicon Photonic Devices

Yaocheng ShiZhejiang University, China

Silicon photonic devices enable dense integration but suffer from strong polarization dependence of building blocks. A general solution to eliminate the polarization-sensitivity of photonic integrated devices based on SOI-nanowires is using the so-called polarization-diversity technology. However, additional building blocks such as polarization beam splitters or polarization rotators are usually required to realize a polarization diversity circuit, which makes the whole device large and complex. In this talk, we will focus on some of our recent work for eliminating the polarization dependence by just optimizing the structure parameters. Polarization insensitive 2×2 couplers, multiplexers have been proposed and experimental demonstrated.

BiographyYaocheng Shi received the B.Eng. degree from the Department of Optical Engineering, Zhejiang University, Hangzhou, China, in 2003 and the Ph.D. degree from the Royal Institute of Technology (KTH), Stockholm, Sweden, in 2008. Then he joined in Zhejiang University as an assistant professor and now he is a professor in the College of Optical Science & Engineering of Zhejiang University. He is working on silicon integrated nanophotonic devices/circuits for optical communications, optical sensing, as well as optical interconnections. He is the principle investigators of more than ten projects, including several National Natural Science Foundation Projects. He has authored about 90 refereed international journal papers and has been invited to give talks on numerous international conferences. His papers have been cited by >1100 times (Web of Science) and his h-index is 20.

On-chip photonic microsystem for optical signal processing

Minghua ChenTsinghua University, China

Benefiting from the large bandwidth, promising low power consumption and passive calculation capability, it is believed that the integrated photonics-based signal processing and transmission technologies can break the bottleneck of microelectronics technology. In recent years, integrated photonics has become increasingly reliable and access to the advanced fabrication process has been offered by various foundries. In this paper, we review our recent works on the integrated optical signal processing system. We study three different kinds of on-chip signal processors and use these devices to build microsystems for the fields of microwave photonics, optical communications and spectrum sensing.

BiographyMinghua Chen received Ph.D. from Southeast University in 1998. Then he joined Information Optoelectronics Research Institute at Tsinghua University, where he is a professor and vice-director of the institute. From 2010 to 2011, he was a visiting professor in RLE at MIT. His research interests are in silicon photonic microsystems.


Session 1


Multimode silicon photonics

Daoxin DaiZhejiang University, China

Mode-division-multiplexing (MDM) technology has attracted intensive attention because of the potential to enhance the capacity of an optical-interconnect link for a single wavelength carrier. In this case, one should consider not only the fundamental mode but also the higher-order modes for the design of photonic integrated devices. This makes it very different from the conventional photonic devices operating with the fundamental mode and thus some novel devices are required. There are two major challenges.

One is developing low-loss and low-crosstalk on-chip mode (de)multiplexers in order to realize efficiently the combination/separation of the signals carried by different mode-channels in MDM systems. The other challenge for MDM systems is achieving a sharp multimode waveguide bends to support low-loss and low-crosstalk transmission with multiple mode-channels. Fortunately, people have developed various on-chip mode (de)multiplexers based on silicon photonic waveguides. Some of them achieved low-loss (<1 dB) and low-crosstalk (~−20 dB) for the multiple mode-channels. People have also presented several kinds of interesting approaches to achieve a sharp multimode waveguide bends.

In this paper, we give a review and discussion on recent progresses of silicon photonic devices for mode-division-multiplexing systems, including mode (de)multiplexers and sharp multimode waveguide bends.

BiographyProf. Daoxin Dai received the B. Eng. degree from Zhejiang University (ZJU) in 2000, and the Ph.D. degree from the Royal Institute of Technology (Sweden) in 2005. He joined ZJU as an assistant professor in 2005 and became an associate professor in 2007, a full professor in 2011. Dr. Dai worked at UCSB as a visiting scholar from the end of 2008 until 2011. His research interests are in silicon nanophotonics for optical interconnections and optical sensing. He has published >150 refereed international journals papers (including 10 invited review papers). Dr. Dai is one of Most Cited Chinese Researchers in 2015 and 2016 (from Elsevier). His paper has >4560 citations and the H-index is 38 (Google Scholar). He has been invited to give more than 40 invited talks and served as the program committee member or session chair for many top international conferences (like OFC 2013-2015). Dr. Dai was the leading Guest Editor of the Integrated Photonics special issue of Photonics Research. He is serving as the Associate Editor of the Journals of “IEEE Photonics Technology Letters”, “Optical and Quantum Electronics” and “Photonics Research”.

Er silicate amplifier and laser

Xingjun WangPeking University, China

Erbium-doped materials have played an important role in the fabrication of light sources used in silicon photonics. Recent studies demonstrated that erbium silicate nanowire had a high net gain attributable to its high erbium concentration and excellent material quality. We establish a more accurate and comprehensive theoretical model of erbium silicate nanowire, analyze the modeled nanowire’s properties, and optimize a high-gain erbium silicate waveguide amplifier and low-threshold, high-efficiency laser by considering upconversion, energy transfer, and amplified spontaneous emission. The simulation results and experimental data showed good agreement. A proposed waveguide amplifier, based on the optimized design, displayed a gain greater than 200 dB/cm. Then, a 3.3 mW low-threshold laser with a maximum power-conversion efficiency of 50% was modeled by choosing the optimized resonator cavity and reflector. The results indicate that erbium silicate compound materials with large optical gains can serve as potential candidates for inclusion in scale-integrated amplifiers and other applications requiring lasers. BiographyXingjun Wang received the B.E., M.E. and Ph.D. degrees from the Dalian University of Technology, China in 1999, 2002 and 2005, respectively. From 2007 to 2009, he was a JSPS postdoctoral follow in Department of Electronic Engineering, University of Electro-Communications, Japan. In 2009, he joined Peking University, and is currently a full professor at Peking University, Beijing, China. In 2015, he was selected first Young Yangtse River Scholar of China. Now he is devoted into Si photonics, including the Si based light source and Si optoelectronic integration chip for high speed optical communication. He has published more than 150 papers on international journals and conference proceedings. The 80 papers have been SCI indexed. The citation reaches 800 times.


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Generate and manipulate optical vortex

Xue FengTsinghua University, China

Introduced by Allen et al., it has been realized that light can carry orbital angular momentum (OAM) in addition to the spin angular momentum (SAM). Independent of the polarization state, light with an azimuthal phase dependence of exp(ilφ) has OAM lћ per photon and such kind of light is also known as optical vortex. Optical vortex can be employed in plenty applications, such as optical communication, quantum information processing and optical imaging, since it provides an infinite and additional dimension of photon.

Aim to explore the benefit introduced by optical vortex, we have proposed and demonstrated several photonic integrated devices, including the integrated “Cobweb” emitter with a wide switching range of OAM modes, integrated “Cogwheel” emitter to generate optical superimposed vortex beam and several plasmonic vortex devices.

Furthermore, the concepts of quasi-angle state and quasi-OAM state are introduced to form the high-dimensional optical Hilbert space and a linear states transformation method have been proposed and demonstrated. Our proposed method is a simple, fixed, error-tolerant and scalable scheme based on meticulously designed phase gratings in order to perform arbitrary linear operations. According to experimental results, the unitary transformation matrix has been realized with dimensionalities ranging from 7 to 24 with corresponding fidelities from 95.1% to 82.1%. Besides the unitary operations, non-unitary operators can also be implemented, which makes it more flexible for certain applications. As a concrete example, a 4 ╳ 16 matrix is presented for the tomography of a 4-level quantum system, with a fidelity of 94.9%.

BiographyFeng Xue, Ph.D., Associate ProfessorDepartment of Electronic Engineering, Tsinghua UniversityDr. Xue Feng was born in Guizhou, China, in August 1977. He received his BS, MS and PhD degrees from Tsinghua University in 1999, 2002 and 2005, respectively. Since 2005, he has been a faculty in Department of Electronic Engineering, Tsinghua University, Beijing, China.

Dr. Xue Feng has published more than 150 papers on academic journals and conferences with topics of optoelectronic devices. From 2009, he is dedicated to the integrated optoelectronic devices with nano/micro structure on silicon platform. The main research interests include integrated photonic orbital angular momentum emitter, new photonic functional devices and photonic integrated circuit.

An analytical method to characterize OAM modes

Junhe ZhouTongji University, China

Orbital angular momentum (OAM) modes multiplexing technique have been viewed as an important approach to realize space division multiplexing (SDM) for optical communication systems. The atmosphere turbulence is the main obstacle which deteriorates the OAM system performance. The existing tools require significant computational efforts to find the important characteristics such as the average powers and the higher order correlations. The presentation aims the resolve the problem by introducing the coupled mode theory in the free space such that the above parameters can be evaluated by the integrating the ordinary differential equations. The analysis method can be used to find the optimal modes which will maximize the system capacity.

BiographyJunhe Zhou received the B.S. and Ph.D. degrees in electronics engineering from Shanghai Jiao Tong University, Shanghai, China, in 2002 and 2008, respectively. From 2006 to 2007, he worked as a Joint-Educated Ph.D. Student with Ecole Nationale Supérieure des Télécommunications. Since 2009, he has been with the Department of Electronics Science and Engineering, Tongji University, Shanghai, China, where he is currently an Associate Professor. His research interests include optical communication systems analysis and optical signal processing. He is a Member of OSA.


Session 1


CIOP2018-2018-000058Compact waveguide (de)multiplexer based on asymmetric Y-junctionsYang Gao1, Lanting Ji1, Yan Xu1, Xiaoqiang Sun*1, Xibin Wang1, Yunji Yi1, Changming Chen1, Fei Wang1, Yuanda Wu2, Daming Zhang1 | 1 Jilin University, China; 2 Institute of Semiconductors, CAS, ChinaA four-order asymmetric Y-junctions mode (de)multiplexer ((de)MUX) was theoretically proposed. Through the widths optimization of branch arms by effective index matching and beam propagation method, the footprint was controlled to be 140×7.1 μm2.

CIOP2018-2018-000126Circular optical phased array for 360° constant amplitude scanningXuecheng Liu, Bing Xiong*, Changzheng Sun, Zhibiao Hao, Lai Wang,Jian Wang, Yanjun Han, Hongtao Li, Yi Luo | Tsinghua University, ChinaA novel design of circular optical phased array is proposed in this paper, which can realize 360° constant amplitude scanning by positioning the units in a circle.

CIOP2018-2018-000268Optical properties of all-polymer tunable Bragg grating filters with microheatersAnjin Liu | Institute of Semiconductors, CAS, China We numerically and experimentally studied the detailed optical properties (i.e. modal birefringence, reflectivity, and optical field behavior) of all-polymer waveguide Bragg grating filters with microheaters.

CIOP2018-2018-000324A Verilog-A Compact Model for Silicon Micro-Ring Supporting Fast Thermal-Electronic-Photonic Co-SimulationDa Ming1, Zhicheng Wang1, Lining Zhang3, Min Tan1,2* | 1 Huazhong University of Science and Technology, China; 2 Shenzhen University, China A Verilog-A compact model for silicon micro-ring supporting fast closed loop thermal-electronic-photonic co-simulation is presented. To the best of our knowledge, this is the first such compact model that is able to support thermal-electronic-photonic co-simulation.

CIOP2018-2018-000354Three-dimensional waveguide cross-coupled silicon nitride microring resonatorsJijun Feng1, Shan Zhai1, Ryoichi Akimoto2 and Heping Zeng1,3 | 1 University of Shanghai for Science and Technology, China; 2 National Institute of Advanced Industrial Science and Technology; 3 East China Normal University, ChinaTunable three-dimensional silicon nitride racetrack resonators were experimentally demonstrated, with a microring resonator on a bottom layer and a feedback cross-coupled waveguide on a top layer. The filter performance such as the resonance wavelength and extinction ratio can be thermo-optically tuned based on the electrical control of a heater above the feedback waveguide.

CIOP2018-2018-000381Silicon Mach-Zehnder Modulator Using a Highly-Efficient L-Shape PN JunctionGangqiang Zhou1, Linjie Zhou*1, Yanyang Zhou2, Yiming Zhong1, Siqi Liu1, Yuyao Guo1, Lei Liu 3, Jianping Chen1 | 1 Shanghai Jiao Tong University, China; 2 China Electronic Technology Group Corporation, China; 3 Huawei Technologies Co. Ltd., ChinaWe have demonstrated a silicon single-drive push-pull Mach-Zehnder modulator with L-shape PN junctions. The measured p phase shift voltage is 2.6 V and the modulation efficiency is 0.78 V cm. The modulation bandwidth is large than 30 GHz at -2 V bias. 32 Gb/s OOK and 32 Gb/s BPSK modulations were realized using the modulator.

Oral Talks


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Invited Talks

Fiber Optic Nerve Systems based on Brillouin Scattering for Structural Health Monitoring

Kazuo HotateToyota Technological Institute, Japan

Optical fibers can act as sensor for measuring strain and/or temperature through the properties, such as scattering. By applying ways to analyze the distribution of the roperties, “distributed optical fiber sensing” have been developed. By embedding the fiber in structures, such as aircraft wings, bridges, and pipelines, we can realize “structural health monitoring.” In these applications, the fibers act as “fiber optic nerve systems.”

In this presentation, fiber optic nerve systems based on Brillouin scattering is discussed. Brillouin scattering caused in silica optical fibers shows frequency downshift of about 11GHz. This Brillouin frequency shift is linearly dependent on strain and/or temperature change, which acts as the sensing mechanism. In this presentation, we mainly focus on the “correlation domain techniques” as ways to analyze the distribution, in which interference or correlation characteristics of continuous lighwave are synthesized to realize the position-selective measurement.

Performances demonstrated by the techniques are, for example, 1.6 mm spatial resolution and 5,000 times/s shape measurement rate of the Brillouin gain spectrum. Another feature of the techniques is “random accessibility,” in which finite points to be measured are selected arbitrarily along the fiber. With the “random accessibility,” simultaneous dynamic strain measurement can be done, at the multiple points. Recently, the ratio between the sensing fiber length and the spatial resolution has been much enhanced to be 134,000. Discriminative and distributed measurement of strain and temperature along the fiber has also been realized by the techniques. Application trials have been demonstrated, including structural health monitoring for aircrafts.

BiographyKazuo Hotate received B.E., M.E., and Dr. Eng. degrees in electronics from the University of Tokyo, Tokyo, Japan, in 1974, 1976, and 1979, respectively. In 1979, he joined the University of Tokyo as Lecturer. He became Professor in 1993 at Research Center for Advanced Science and Technology and was Professor at Department of Electrical Engineering and Information Systems, Graduate School & Faculty of Engineering, the University of Tokyo. He served as Dean of Graduate School & Faculty of Engineering (2008–2010), and also served as Director General of Division of University Corporate Relations (2011–2014), in the University of Tokyo. He was Executive Vice President of the University of Tokyo in 2015 and 2016. On March 31, 2017, he was retired from the University of Tokyo. Since April 1, 2017, he has been working in Toyota Technological Institute, Nagoya, Japan, as Vice President and Professor.

He has been engaged in projection-type holography, measurement and analysis of optical fiber characteristics, photonic sensing, and optical fiber sensors. He has authored and coauthored several books on optical fibers, and more than 450 journal papers and international conference presentations.

Prof. Hotate is Fellow of IEEE, Institute of Electronics, Information, and Communication Engineers (IEICE), Society of Instrumentation and Control Engineers (SICE), and Japan Society of Applied Physics (JSAP). He received academic awards, including OFS Life-time Achievement Award, SPIE DSS Life-time Achievement Award, Ichimura Prize, IEICE Achievement Award, SICE Hasunuma Prize, and JSAP Takuma Prize.

He was a Board of Governors member of IEEE Photonics Society and served as an Associate Editor of IEEE/OSA Journal of Lightwave Technologies. He served as Technical Program Committee Chair for 13th International Conference on Optical Fiber Sensors (OFS-13, 1999), and General Chair for OFS-16 (2003).



Session 2


Photothermally generated microbubble for sensing and imaging applications

Jun MaJinan University, China

We demonstrate a stable/quasi-static microbubble photothermally generated at an optical fiber tip for sensing and imaging applications. The bubble was generated by delivering a heating light beam to a metalized fiber tip, and its deformation was measured by simultaneously delivering another interrogation light beam through the same fiber. By servo-controlling the power of the heating light, the microbubble was stabilized with a diameter variation of less than 0.5 nm. Through photothermally controlling the bubble diameter, the acoustic response of a single BoF can be reconfigured onsite for diverse applications covering different frequency bands. For example, a 39 μm-radius BoF with a resonant frequency of ~ 80 kHz was applied to underwater acoustic detection and demonstrated a minimum detectable pressure level of ~ 1 mPa/Hz1/2. A 5 μm-radius BoF with a 0.6 MHz resonant frequency was used for biomedical photoacoustic imaging and achieved a spatial resolution of 1.3 mm. Compared with traditional acoustic/ultrasound sensors, the reported BoF is compact, diaphragm-less, cost-effective and bandwidth-tunable from kHz to MHz, and thus promising as an ultrasensitive platform for a number of applications, such as underwater sound detection, ultrasound/photoacoustic imaging, and bio-molecular/cell detection.

BiographyJun Ma received his BSc degree from Huazhong University of Science and Technology and a Ph. D. degree from The Hong Kong Polytechnic University. He then worked as a postdoctoral research associate at the Biomedical Engineering Department, Washington University in St. Louis. He is currently an associate professor at the Institute of Photonics Technology of Jinan University. His research interests include optical acoustic/ultrasonic transducer and photoacoustic imaging. He has published more than 20 papers in international journals and conferences and received the best paper award from the 22nd International Conference on Optical Fiber Sensors (OFS-22).

High precision fiber optic gyroscope with twin source

Yuanhong YangBeihang University, China

Fiber optic gyroscope (FOG) is a very precise sensor, the intrinsic sensitivity to thermal transient, vibrations and magnetic field etc. depress its performance seriously in field application. A novel FOG with twin broadband sources was proposed and demonstrated. This scheme can eliminate most of common mode errors in FOG and high performance can be achieved. The FOG experimental system with twin source was realized and a synchronous detection circuit was made. The performance testing was carried out under different temperature, vibration and magnetic field and the results proved the scheme and the FOG performance was improved greatly.

BiographyProf. Yuanhong Yang received his B.Sc. degree in Optical Engineering from Huazhong University of Science and Technology, Wuhan, China and M.Sc. in Instrumental Science and Ph.D. degree in Material from Beihang University, Beijing，China. Currently he is a Professor at Beihang University, Beijing，China. Where he works on research activities related to new fiber optical gyroscope and relative technology. His main research interests include optical gyroscopes, optical fiber sensing and optical fiber laser. He is author and co-author of more than 150 publications and holds more than 30 Chinese patents.


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Calibration-free near-infrared and mid-infrared wavelength modulation spectroscopy in industrial sensing and microbiological growth studies

Arup Lal ChakrabortyIndian Institute of Technology Gandhinagar, India

This talk will describe the research currently being undertaken in the Photonic Sensors Lab in IIT Gandhinagar. Our lab specializes in the use of near-infrared and mid-infrared tunable diode laser absorption spectroscopy (TDLAS) to measure gas concentration, pressure and temperature for industrial and biological applications. TDLAS uses narrow linewidth semiconductor lasers for accurate recovery of the absolute rotational-vibrational absorption lines of gases. Our group uses calibration-free wavelength modulation spectroscopy (WMS) techniques to build compact and field-deployable TDLAS systems. These are easy to reconfigure for multiple gases and can be readily interfaced to electronics and communications systems. Measurements can be done in real-time with fast embedded electronics. This talk will present our recent work on environmental monitoring using a mid-IR quantum cascade laser-based mobile platform to measure urban CO2 emissions. Our recent work on microbiological growth using 2004 nm VCSEL-based will also be outlined. Finally, the performance of a fiber Bragg grating-based sensing glove for highly accurate detection of hand flexure will be discussed.

BiographyDr Arup Lal Chakraborty is an Associate Professor of Electrical Engineering at the Indian Institute of Technology Gandhinagar (IITGN) since 2010. He leads the Photonics Sensors Lab that has a diverse set of inter-disciplinary interests such as industrial process monitoring and safety, microbiological and nano-bio-sensing applications, environmental monitoring and biomedical sensing. These activities rely mainly on near-infrared and mid-infrared tunable diode laser spectroscopy techniques. Prior to joining IIT Gandhinagar he worked as a Research Assistant in the Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow during 2007-2010 from where he obtained his PhD in 2010. His work there involved devising wavelength modulation spectroscopy schemes to achieve calibration-free measurements of gas concentration and pressure for industrial applications. He worked on distributed optical fiber sensing as a Scientific Officer at the Raja Ramanna Centre for Advanced Technology (RRCAT), Department of Atomic Energy, India during 2001-2007. He holds a Bachelor of Technology degree in Electronics and Communications from the University of Kalyani, West Bengal, India. He is a member of the IEEE, the OSA and the OSI. He serves the research community as reviewer of journals of the OSA and IEEE and as a member of the technical programme committee of photonics conferences.

Mid-infrared germanium-suspended-membrane photonic integrated circuits for biochemical sensing in the fingerprint spectral region

Zhenzhou ChengThe University of Tokyo, Japan

The mid-infrared fingerprint spectral region, spanning approximately 8-15 μm, has numerous applications in biochemical sensing and spectroscopy. Traditional mid-infrared sensors such as Fourier-transform infrared spectroscopy spectrometers are based on bench-top free-space optical systems, suffering from their expensive and bulky instrumentation. To overcome this challenge, photonic integrated circuits have been developed in recent years. However, previous photonic integrated circuits are applicable only at wavelengths below 8 μm, which is moderated by the transmittance of waveguide or substrate materials. In this talk, I report our recent research progress on the development of novel mid-infrared germanium-suspended-membrane photonic integrated circuits that can operate in the mid-infrared region of 2-15 μm. Specifically, we monolithically integrated focusing subwavelength grating couplers, suspended-membrane waveguides, and high-Q resonators on a germanium photonic chip. Our study paves a new way for the development of on-chip mid-IR applications in biochemical sensing and spectroscopy.

BiographyDr. Zhenzhou Cheng is currently an assistant professor of physical chemistry in the Department of Chemistry at the University of Tokyo. He received his B.S. degree in physics and M.S. degree in optics from Nankai University in 2006 and 2009, respectively. He received his Ph.D. degree in electronic engineering from The Chinese University of Hong Kong in 2013. He has received the Young Scientist Award from Hong Kong Institute of Science and the Young Scholar Thesis Award from the Chinese University of Hong Kong. He joined Goda Lab in the Department of Chemistry at the University of Tokyo as an assistant professor in 2015. In 2018, he was selected in Thousand Talents Program. His research focuses on Group IV photonics for sensing, spectroscopy, nonlinear optics, and optical communications.


Session 2


Optical reflectometry with ultra-high spatial resolution and long measurement range

Xinyu FanShanghai Jiao Tong University, China

In this invited talk, three advanced methods to improve both the spatial resolution and the measurement range are presented which paves the way for new horizons in high-end applications. The first one is to develop an optical source with ultra-highly-linear frequency sweeping rate, and use it for optical frequency domain reflectometry (OFDR). The second one is to use linear optical sampling (LOS) technique to measure ultra-short pulse used for optical time domain reflectometry (OTDR) and adopt dispersion compensation scheme. The third one is to use LOS technique for characterizing the ultra-wide linearly chirped signals for pulse compression.

BiographyProf. Xinyu Fan received his B.Sc. in Applied Physics (2000), M.Sc. in Optical Engineering (2003), from Shanghai Jiao Tong University, China, and a Ph.D. degree in Electrical Engineering (2006) from the University of Tokyo, Japan. In 2006, he joined NTT Laboratories as a research scientist. In 2012, he joined Shanghai Jiao Tong University as a professor in the Department of Electronic Engineering.

His research interest focuses on optical fiber sensors, fiber applications, special optical fiber, fiber devices and systems, optical information processing. Prof. Fan has published over 100 journal articles and filed over 20 patents.

Optical Fiber Based Powerful Tools for Living Cells Investigation

Libo YuanGuilin University of Electronic Technology, China

By using specialty designed optical fiber, a series powerful micro particle manipulation tools, such as optical tweezers, micro optical hand and optical gun are developed and demonstrated. In this talk, a review of our research activities on optical manipulation of micro particles will be presented. In particular we will describe a kinds of specialty optical fiber designed and fabricated for building the optical trapping and manipulating tools. As application examples, the performance of annular core fiber based optical tweezers, multi-core fiber based micro optical hand and coaxial dual waveguide fiber based optical gun are demonstrated and discussed in detail. It can be used in cells manipulation in life science and drug response in medicine.

BiographyProf. Libo Yuan is with the School of Electronic Engineering and Automation, Guilin University of Electronics Technology, as a professor and director of Center for Photonics Research. He has received his Ph.D. (Photonics, 2003), M. Eng. (Communication & Electronic Systems, 1990) and B.S. (Physics, 1984), from The Hong Kong Polytechnic University, Harbin Shipbuilding Engineering Institute and Heilongjiang University, respectively.

His general area of research is in-fiber integrated optics and fiber-optic sensors and its applications. He has led over 30 projects as principle investigator, include 973, 863 programs and a project of major program of national natural science foundation of China. As chief supervisor, he has supervised many research students, with 25 of them obtained their Ph.D. degree successfully and 45 received M. Eng. degree in Photonics.

Recent advances of single-end-access high-speed distributed Brillouin sensing technology

Yosuke MizunoTokyo Institute of Technology, Japan

Distributed optical fiber sensors have been extensively studied on account of their capability of strain and temperature measurement at an arbitrary location along a long optical fiber. In general, distributed oscillation measurement requires real-time operation of the sensing systems. However, real-time operations have been conventionally achieved only for two-end-access systems; such systems reduce the degree of freedom in embedding the sensors into structures, and


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furthermore render the measurement no longer feasible when extremely high loss or breakage occurs at a point along the sensing fiber. Here, we demonstrate real-time distributed measurement with intrinsic one-end accessibility by using specially configured Brillouin optical correlation-domain reflectometry (BOCDR) systems. Technical details and the latest findings (such as the detection of a shortest-ever hot spot using a “beyond-nominal-resolution” effect) of “slope-assisted BOCDR” will be presented. The loss-insensitive operation using a trench-index-type fiber and stable operation using a polarization-maintaining fiber are also presented. The use of plastic optical fibers is also shown to be effective for highly sensitive temperature measurement. We will also present the measurement results using a silica fiber embedded in a composite structure (composed of carbon fiber reinforced plastics) to prove the system practicality.

BiographyYosuke Mizuno received the B.E., M.E., and Dr.Eng. degrees in electronic engineering from the University of Tokyo in 2005, 2007, and 2010, respectively. From 2007 to 2010, he worked on Brillouin optical correlation-domain reflectometry (BOCDR) for his Dr.Eng. degree. From 2010 to 2012, as a JSPS Research Fellow (PD), he worked on polymer optics at Tokyo Institute of Technology as well as at BAM, Germany. Since 2012, he has been an Assistant Professor at Tokyo Institute of Technology, where he is active in fiber-optic sensing, polymer optics, and ultrasonics. He has authored more than 120 refereed journal papers and has given more than 20 invited talks at international conferences including OFS-23, APOS 2016, and OFS-25.

Hollow-core Negative Curvature Fiber: Design, Fabrication and Applications

Yingying WangBeijing University of Technology, China

Hollow-core photonic crystal fiber (HC-PCF) has been proved to be a versatile platform for lab-on-a-fiber applications. By filling the fiber with various gases, liquids or solid materials, the light-matter interaction could be greatly enhanced. Many novel optical phenomena that are unattainable in free-space could be easily identified inside the fiber. Hollow-core photonic bandgap fiber (HC-PBGF) has some restrictions for applications due to its narrow bandwidth and small core size. In recent years, another type of hollow-core fiber, coined hollow-core negative-curvature fiber (HC-NCF) attracted intense study thanks to its unprecedented optical performance of low transmission loss, octave-spanning transmission bandwidth, high damage threshold and single modeness. Here, we review our recent progress in developing HC-NCF for UV, visible, NIR and MIR spectral range. Novel fiber designs and state-of-art fabrication technique enables a series of HC-NCF to be experimentally realized working in the optical transmission window beyond that of conventional silica fibers with high optical performance. Several applications will also be introduced including a Raman-dominant supercontinuum generation covering UV, visible and NIR spectral range in nitrogen-filled HC-NCF pumped by a high energy picosecond laser at 532 nm; 100 µJ level 2.8 µm mid-IR Raman laser emission in a methane-filled HC-NCF and a liquid-filled HC-NCF for Raman spectroscopy application.

BiographyYingying Wang obtained her Ph.D degree from University of Bath, UK in 2011. Her Ph.D thesis was awarded the “Albert Freedman Prize” by the Department of physics, University of Bath. She is currently working at Institute of Laser Engineering, Beijing University of Technology as an associate professor. She is awarded “The sea poly project of Beijing overseas talents” by the Beijing Government in 2012. Her research interest lies on novel optical fiber design and fabrication and nonlinear fiber optics. Her contribution on low loss hypocycloid-core Kagome-lattice hollow-core fiber is well recognized by the photonic crystal fiber community. In recent years, her research is focused on the design, fabrication and applications of hollow-core negative-curvature fiber. She has delivered several postdeadline talks and invited talks in international conference such as CLEO, ECOC, CLEO-PR and Photonics West. She has authored more than 20 technical papers with >200 total citations.

Integrated fiber polymer microtips for Bessel-like beam generation

Limin XiaoFudan University, China

Bessel-like beams possess a unique propagation-invariant profile and self-healing propagation properties, which have been widely practiced in many fields such as particle guiding, imaging, nonlinear optics, lithography, and microfabrication. A novel and efficient approach to generate Bessel-like beams through fabricating self-growing polymer microtips at the


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facet of single mode fibers (SMFs) is demonstrated. We observe that the shorter microtip length will be favorable for the generation of Bessel-like beams and introduce a simple and effective dose-reduced approach to fabricate short optimized microtips. The dimension of the microtip decreases from the base to the end facet. When the length of the microtip is long, the taper transition is adiabatic and the single-mode light pattern from the SMF can be kept through the microtip. However, when the microtip is short and then has an abrupt dimension variation from the base to the tip, it acts more like a microlens, the surface curve will dominate its optical properties, which is the key factor to produce Bessel-like beam. The end-facet of this microlens-like tip is not round but quite sharp like a polished microlens, which exactly resembles the previous fiber microaxicon obtained by two-step mechanical polishing procedures. However, compared to the relatively complicated polishing method, our approach can produce an elegant smooth microtip within one minute which generates a high quality Bessel-like beam. Wide conversion bandwidth and self-healing beam properties were also investigated. Our microtips provide an effective, low-cost, and ultra-compact way for Bessel-like beams generation which will promote their wide-ranging applications.

BiographyLimin Xiao is currently a Professor with the Key Laboratory of Micro and Nano Photonic structures, Fudan University. He is also with Key Laboratory for Information Science of Electromagnetic Waves (MoE), Fudan University, and also with Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Fudan university. He currently heads the Advanced Fiber Devices and Systems Group. His research interests include photonic crystal fibers and devices, advanced optical fiber manufacturing technology, fiber sensors, all-fiber devices and laser technology.

Microwave photonic signal processing

Xiaoke Yi The University of Sydney, Australia

Microwave photonics offers the prospect of overcoming a range of challenging problems in the processing of signals. Its intrinsic advantages of high time-bandwidth product and immunity to electromagnetic interference (EMI) have led to diverse applications in the microwave and sensing fields. Future systems require wideband frequency shifting capabilities to millimetre wave frequencies with low spurious generation and with tunable capabilities, which is difficult to achieve. Moreover, microwave photonics is capable of solving challenging problems in the sensing field for realizing high-sensitivity and high-resolution nano-chip sensor probe elements that can be integrated into any measuring device.

We presents recent advances in microwave photonic signal processing and sensing. Wideband signal processing functions such as filters, phase shifters, beamformers and oscillators have attracted immense research interest. Microwave photonic signal processors in tunable signal processing applications with a focus on the key signal processing devices as well as cascaded photonic signal processing for analog RF photonic links are presented. Integration based microwave photonic techniques that have high potentialities to be used in a variety of sensing applications which includes the exploration of integration based optoelectronic devices for enhanced sensing resolution and speed are also presented.

BiographyXiaoke Yi joined School of Electrical and Information Engineering, University of Sydney in 2003. She is currently a full Professor and the first cohort of Sydney Research Accelerator Fellow in the University of Sydney. She is a member of College of Expert, Australian Research Council. In 2011, she was awarded the QEII Fellow by Australian Research Council. She was listed as one of the Australia’s Most Innovative Engineers 2017 and was the 2017 winner of the Bradfield Award for Science of Engineering recognised by Engineers Australia. Her current research is focused on developing new technologies for RF photonics and integrated microwave photonics.


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Femtosecond Laser Fabricated Fiber Microstructure Sensor

Changrui LiaoShenzhen University, China

Recently, femtosecond laser micromachining has become more and more popular in fiber device fabrication. This talk will introduce our recent research work in Shenzhen University in the field of in-fiber waveguide devices and in-fiber polymer microstructures fabricated by use of femtosecond laser micromachining and their sensing applications. This talk will firstly introduce the method of femtosecond laser directly inscribing low-loss waveguide in silica fiber and then demonstrate three types of in-fiber waveguide sensors, i.e. fiber-surface Bragg grating RI sensor, fiber-surface Mach-Zehnder interferometer RI sensor and in-fiber hybrid coupler RI sensor. Secondly, femtosecond laser induced two-photon polymerization (TPP) method will be introduced and based on this laser additive manufacturing method some in-fiber polymer microstructure sensor will be discussed, i.e. in-fiber polymer fiber Bragg grating temperature sensor and in-fiber polymer waveguide interferometer sensor.

BiographyChangrui Liao received the B.S. degree in optical information science and technology and the M.Eng. degree in physical electronics from Huazhong University of Science and Technology in 2005 and 2007, respectively, and the Ph.D. degree in optical engineering from the Hong Kong Polytechnic University, Hong Kong, in 2012. He is currently with Shenzhen University, Shenzhen, China, as an Associate Professor. He has authored and co-authored more than 120 journal and conference papers. His current research interests include femtosecond laser micromachining, optical fiber sensors, and optofluidics.

Recent advances in fiber optofluidic lasers

Yuan GongUniversity of Electronic Science and Technology of China, China

Optofluidic laser is an emerging technology that integrates the liquid gain materials, micro optical resonator and an external optical pump. It has great potential for highly sensitive biological or chemical detection of versatile samples. In this presentation recent progress in fiber optofluidic lasers (FOFL) will be reviewed, including various fiber microstructures that employed as optical resonator, different kinds of liquid gain materials, as well as the wide application in biochemical sensing. New concepts including disposable FOFL and distributed FOFL with unique characteristics from optical fibers will be introduced. FOFL arrays were also developed to explore it capability for high throughput sensing. Fiber optofluidic laser is a promising method for low cost, single use, sensitive biochemical detection.

BiographyYuan Gong received his Ph.D. degree in Optics from Institute of Optics and Electronics, Chinese Academy of Sciences in 2008. He has been employed since July 2008 in University of Electronic Science and Technology of China, and in 2017 promoted to a full professor. Dr. Gong was a visiting scholar in Prof. Xudong Fan’s group in University of Michigan, Ann Arbor, USA during 2015-2016. He co-authored more than 100 peer-reviewed journal and conference papers and held more than 20 US/Chinese patents. His research interests include optical fiber sensors, optofluidics, and biochemical detection.

TBA

Young-Geun HanHanyang University, Korea

TBA

BiographyTBA


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Optical fiber sensing for acoustic properties measurement in low pressure gas medium

Junfeng JiangTianjin University, China

We developed a diaphragm-based Fabry-Perot optical fiber sensor. The structure parameters are determined by considering both the mechanical and optical requirements. We first developed quadrature phase demodulation using dual tunable lasers. By selecting the center wavelengths of the two narrowband DFB laser sources according to the F-P microcavity length, two quadrature interference signals can be obtained to retrieve the microcavity length variation signal. The DFB laser can be tuned to compensate the drifting of the working point. Then we further developed a high stable and fast demodulator based on low coherence interference phase shift method. Four birefringence crystals with different thicknesses are fabricated to provide four relative phase shift in parallel (0, π/2, π, 3π/2). The four phase-shift interference signals are obtained to calculate the phase variation related to microcavity length. The optical fiber sensing system is tested in pressure vessel whose work gas medium and pressure can be controlled and compared with tradition PZT acoustic sensor. The experiment result showed the good performance of optical fiber acoustic sensing system in low pressure air and carbon dioxide medium.

BiographyProfessor, School of Precision Instrument and Opto-Electronics Engineering, Tianjin University. His research focus on the optical fiber sensing and Opto-electronics measurement, and he is the PI of 17 research projects, including 973 project, national instrument development project and key project of NSFC. He published 212 papers and 4 books. He won a second prize of National Technology Invention Award，five first prize of province-ministry-level science and technology awards, two China Patent Excellence Awards. He is the recipient of the Tianjin Young Scientist of Year 2015 and Tianjin Excellent Science and Technology Researcher of Year 2016. He was selected into the first level of ‘131’ Innovative Talents of Tianjin in 2016. Serves as the director of Tianjin optical fiber sensing engineering center and deputy director of Institute of Optical Fiber Sensing of Tianjin University. Standing committee member of Optoelectronic Technology Committee of the Chinese Optical Society.

Tilted fiber Bragg grating based magnetic field sensors

Xinyong DongChina Jiliang University, China

Tilted fiber Bragg gratings (TFBGs) can couple light from forward propagating core mode not only to the backward propagating core mode as normal fiber Bragg gratings (FBGs) do, but also to the backward propagating cladding modes. It makes them more advantageous in sensing applications than normal fiber gratings including FBGs and long-period fiber gratings, because these normal fiber gratings can only couple light between core mode and either core mode or cladding modes. The fabrication, sensing principle and magnetic field sensing applications of TFBGs are introduced in this talk.

BiographyXinyong Dong received PhD degree from Nankai University in 2002. He worked in the Hong Kong Polytechnic University and Nanyang Technological University, Singapore, from 2001 to 2008, and joined China Jiliang University as a full professor in 2008. He is a senior member of IEEE, member of OSA and IMEKO-TC2. He is serving in editorial boards of “Journal of Sensors” and “Photonics Sensors”, acted as TPC chair of the 15th and 16th International Conference on Optical Communications and Networks (ICOCN). His research interest covers fiber-optic sensors and lasers. To date, he has published 3 book chapters and more than 300 technical papers, which have been cited over 4000 times. His H-index is 33.


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CIOP2018-2018-000160A stable seawater salinity sensor based on packaged microfiber in-line MZ interferometer: an overall assessmentYipeng Liao, Jing Wang, Shanshan Wang ｜ Ocean University of China, ChinaThis paper proposes a stable seawater salinity sensor based on packaged microfiber in-line MZ interferometer, and the performance of such a functional sensor is assessed by sensitivity, repeatability, and long-term ability for work.

CIOP2018-2018-000348Optical frequency transfer over 377 km urban fiber link using EDFAsXue Deng1,2,3, Jie Liua3, Qi Zang1,3, Dongdong Jiao1,2,3, Dan Wang1,3, XiangZhang1,3, Weicheng Kong1,3, Tao Liu1,3 ｜1 National Time Service Centre, Chinese Academy of Science, China; 2 University of Chinese Academy of Science, China; 3 Key Laboratory of Time and Frequency Standards, Chinese Academy of Science, ChinaWe demonstrate an optical frequency transfer over 377 km fiber link using Erbium-doped fiber amplifiers (EDFAs) to compensate fiber attenuation.

CIOP2018-2018-000220Broadband light-control-light characteristics of WS2 on microfiberHanguang Li, Heyuan Guang, Guowei Chen, Zijian Zhang, Xiaoli Wang, Mengjiang Jiang, Yuwei Lang, Wenguo Zhu, Jianhui Yu, Huihui Lu, Wentao Qiu, Jiangli Dong, Yunhan Luo, Jun Zhang, Zhe Chen ｜ Jinan University, ChinaCombing microfiber and WS2, we demonstrate the light-control-light properties of WS2 coated MF. The transient response to pump lasers are also measured. Experimental results indicate that devices like it hold promising potentials in photoelectric applications.

CIOP2018-2018-000296Laser-Induced Breakdown Spectroscopy Coupled with Machine learning Data treatment for Elementals Analysis of SoilsChen Sun1, Yishuai Niu1, Ye Tian2, Tianlong Zhang3, Hua Li3, Liang Gao1, Jin Yu1 ｜ 1 Shanghai Jiao Tong University, China; 2 Ocean University of China, China; 3 Northwest University, ChinaThis work proposes a regression model based on the machine learning methods for quantitative elemental analysis of soils with laser-induced breakdown spectroscopy (LIBS). The concept of generalized spectral intensity space is also developed.

CIOP2018-2018-000304Graphene enhanced phase sensitive D-type fiber optic sensorYi Xu, L.-K. Ang ｜ Singapore University of Technology and Design (SUTD), SingaporeA new D-type fiber optic sensor based on silicon/graphene hybrid structure is proposed. An ultrahigh phase sensitivity of 1371600 deg/RIU was achieved, which is three orders of magnitude higher than that of bare fiber optic sensor.

Oral Talks


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CIOP2018-2018-000250Broad FSR and high sensitivity refractive index sensor using composite lattice cells based photonic crystal nanobeam cavityChao Wang, Huiping Tian ｜ Beijing University of Posts and Telecommunications, ChinaWe propose a refractive index sensor using a composite lattice cells based photonic crystal nanobeam cavity. The performances of the sensitivity>400 nm/RIU, Q>5×104, and FSR>90 nm are simultaneously obtained by 3D-FDTD simulations.

CIOP2018-2018-000388Sapphire fiber Bragg gratings fabricated by femtosecond laser line-by-line inscriptionJun He, Xizhen Xu, Changrui Liao, Yiping Wang ｜ Shenzhen University, ChinaWe fabricated sapphire fiber Bragg gratings (SFBGs) using femtosecond laser line-by-line method. A serial SFBGs array consists of five SFBGs at distinct wavelengths was created and the SFBGs can withstand a temperature of 1600 oC.

CIOP2018-2018-000203One dimensional photonic crystal/metal structure hollow fiber refractive index sensor based on Tamm plasmon polaritonXian Zhang, Xiao-Song Zhu, Yi-Wei Shi ｜ Fudan University, ChinaA new one dimensional photonic crystal/metal coated hollow fiber refractive index sensor based on Tamm plasmon polariton is proposed. It has much wider detection range and better performance than the conventional hollow fiber SPR sensor.


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Invited Talks

Brainsmatics—Deciphering Genetically Defined Cell Types and Connectome with Brain-wide Positioning System

Qingming LuoHuazhong University of Science and Technology, China

Deciphering the fine morphology and precisely positioning the neurons and neural circuits are crucial to enhance our understanding of brain function and diseases. Traditionally, we have to map brain images to coarse axial-sampling planar reference atlases to orient neural structures, which might fail to orient neural projections at single-cell resolution due to position errors resulting from individual differences at the cellular level. In last one and half decade, my lab developed a Micro-Optical Sectioning Tomography (MOST) and several types of fluorescence MOST (fMOST), which is a novel combination of the microscopic optical imaging and the physical sectioning to obtain the tomographic information of a whole brain with sub-micron voxel resolution. In the first part of my talk, I will introduce the principles of Brain-wide Positioning Systems (BPS) which refers to MOST/fMOST serial techniques. In the second part of my talk, I will demonstrate how to brain-widely position the labelled neurons and neuronal networks, including whole-brain samples preparing, whole-brain optical imaging as well as massive brain-image processing and analyzing. We propose a new term: BRAINSMATICS, which refers to the integrated, systematic approach of measuring, analyzing, managing and displaying brain spatial data with unprecedented single-neuron resolution. The serial BPS have the advantages of high resolution, high throughput and long-time stability. With the brain-spatial information of neuron types, neural circuits, vascular networks and 3D fine brain atlas, we believe that brainsmatics makes it possible to better decipher genetically defined cell types and connectome.

BiographyDr. Qingming Luo is the Vice-President of Huazhong University of Science and Technology (HUST) and Director of Wuhan National Laboratory for Optoelectronics. He is an elected Fellow of The American Institute for Medical and Biological Engineering (AIMBE), The International Society for Optics and Photonics (SPIE), The Institution of Engineering and Technology (IET), The Optical Society (OSA) and Chinese Optical Society (COS).

He is the founder of HUST-Suzhou Institute for Brainsmatics. His research interests focus primarily on multi-scale optical bioimaging and cross-level information integration. Since 1996, he has been devoted to new techniques and novel applications in life sciences, including laser speckle imaging (LSI) and combination with optical intrinsic signal imaging (ISI), small animal imaging of fluorescence diffusion optical tomography (fDOT) coregistered with micro-CT, micro-optical sectioning tomography (MOST), and functional near infrared (NIR) imaging. He is currently leading the project Visible Brain-wide Networks at single-neuron resolution and the Chief Scientist of National Major Scientific Instruments & Equipment’s Development Project “Instrument qDevelopment and Application Demonstration of the Micro-Optical Sectioning Tomography System”. He created “the most detailed three-dimensional map of all the connections between the neurons in a complete mouse brain” and “demonstrated the first long-range tracing of individual axons in the mouse brain”.

Dr. Luo holds 80 patents and has co-authored more than 200 papers in peer-reviewed journal, including Science, Nature Cell Biology, Nature Communications, PNAS, Optics Letters, Optics Express and Journal of Biomedical Optics. He won the Cheung Kong Professorship of Ministry of Education of China in 1999, the National Science Fund for Distinguished Young Scholars in 2000, the second-place prize in State Natural Sciences Award in 2010, China’s Top Ten Major Scientific Progress, and the second-place prize in State Technological Invention Award in 2014.



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Rapid In Vivo Raman Spectroscopy for Medical Applications

Haishan ZengUniversity of British Columbia, Canada

Raman spectroscopy is a non-invasive optical technique capable of measuring vibrational modes of biomolecules within tissue. Raman spectra provide fingerprint-like information for characterizing tissue biochemical changes associated with disease transformation, and therefore, have great potential for improving clinical diagnosis. However, Raman signals are extremely weak and the key challenge for medical application is realizing rapid data acquisition from live subjects. We have developed a platform technology to meet the challenge and implemented viable clinical applications. This presentation will cover three topics: (1) technology development for rapid in vivo Raman measurements including collection optics, spectrometer architecture, data preprocessing, and spectral analysis; (2) example clinical applications in non-invasive skin cancer detection and endoscopic lung cancer detection; and (3) imaging guided in vivo confocal Raman spectroscopy for improving non-invasive glucose sensing.

BiographyHaishan Zeng is a distinguished scientist with the Integrative Oncology Department (Imaging Unit) of the BC Cancer Agency Research Centre, Vancouver, Canada, a professor of Dermatology, Pathology, and Physics at the University of British Columbia. For over 28 years, Dr. Zeng’s research has been focused on developing novel phototherapy and various optical imaging and spectroscopy techniques for improving early cancer detection. He has published over 150 refereed journal papers, 17 book chapters, and 1 book (“Diagnostic Endoscopy”, CRC Press Series in Medical Physics and Biomedical Engineering).

Dr. Zeng’s research has generated 27 granted patents and a few pending patents related to optical diagnosis and therapy. Several medical devices derived from these patents including fluorescence endoscopy (ONCO-LIFE™) and rapid Raman spectroscopy (Verisante Aura™) have passed regulatory approvals and are currently in clinical uses around the world. The latest device, Verisante Aura™ using Raman spectroscopy for non-invasive skin cancer detection, was awarded the Prism Award in the Life Sciences and Biophotonics category in February, 2013 by SPIE.

Imaging molecular signatures for clinical detection of scleroderma in the hand by multispectral photoacoustic tomography

Zhen YuanUniversity of Macau, Macau, China

Scleroderma (SD) is a rare autoimmune disease, which is divided into two categories: the localized SD and systemic SD. The localized SD mainly causes skin thickening of the fingers, whereas the systemic SD can further affect the blood vessels and internal organs. In this pilot study, the multispectral photoacoustic elastic tomography (PAET) imaging technique was used to recover the quantitative physiological and elastic properties of biological tissues for the diagnosis of SD. Three healthy subjects and three scleroderma patients were recruited and clinically examined by a rheumatologist, and then their hand /fingers were scanned by both MRI and our home-made photoacoustic imaging system. Physiological parameters including oxygen saturation (STO2), deoxy-hemoglobin (Hb) and oxy-hemoglobin (HbO2) concentrations and mechanical properties such as bulk elastic modulus images were reconstructed by using the developed PAET reconstruction method. Our imaging results demonstrated that the physiological and elastic parameters exhibit striking differences between the SD and normal fingers, indicating that these biomarkers can serve as molecular signatures for early detection of SD. These quantitative physiological properties and bulk modulus may also pave a new path for improved understanding the pathological mechanism of SD.

BiographyProf. Dr. Yuan is now an associate professor with the University of Macau (UM). He had been working as an assistant professor in UM since 8/2013 and has been promoted to a tenured associate professor, effective from 9/2017. Before he joined UM, he had worked as a clinical assistant professor in the Arizona State University (8/2012-08/2013) and research assistant professor at University of Florida (09/2007-08/2012). He received his PhD degree in Mechanical Engineering from University of Science and Technology of China in 2002. Between 2002 and 2007, he had received several postdoc trainings in different institutes including National University of Singapore (2002-2004), Clemson University (2005) and University of Florida (2005-2007). His academic investigation is focused on cutting-edge research and development in biomedical optics and optical imaging. He, as the principal or co-investigator for the above research activities, has achieved national and international recognition through more than 100 publications in high ranked journals in his field. He is the editorial board member of Quantitative Imaging in Medicine and Surgery and BMC Medical Imaging. He was selected to be an active reviewer for over 50 top journals. He is a senior member of OSA and senior member of SPIE.


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Super-resolution for live cell imaging

Junle QuShenzhen University, China

Superresolution optical imaging has made remarkable progress in recent years, providing a powerful tool for biology. Superresolution optical imaging allows for the observation of fine structures of cells, cellular dynamics and cellular functions at nanometer scale or even single molecular level, which greatly promotes the development of life science and many other fields. In this talk I will present our recent work in super-resolution optical microscopy. By combining stimulation emission depletion (STED) microscopy and fluorescence lifetime imaging (FLIM), a STED-FLIM superresolution microscopy was developed to improve the spatial resolution of STED and perform FLIM imaging at nanometer resolution. New fluorescent probes with low STED laser power were designed for live cell mitochondria imaging. STED-FLIM imaging of microtubules labeled with ATTO647N inside HeLa cells and the mitosis process was obtained, which provides new insight into the cell structure and functions. In addition, coherent adaptive optical technique (COAT) has been implemented in a stimulated emission depletion (STED) microscope to circumvent the scattering and aberration effect for thick sample imaging. Finally, stochastic optical reconstruction microscopy (STORM) superresolution imaging of mitochondrial membrane in live HeLa cells was obtained by the implementation of new fluorescent probes, improved imaging system and optimized single molecule localization algorithm. This provided an important tool and strategy for studying dynamic events and complex functions in living cells.

BiographyDr. Junle Qu is a professor of Shenzhen University. He graduated from the Department of Electronic Engineering, Xi’an Jiaotong University with a BE degree in 1992. In 1995 and 1998, he graduated from Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences with a MS degree and Ph.D degree respectively. From 1999 to 2001, he was with the Institute of Optoelectronics, Shenzhen University. From 2001 to 2003, he was working as a postdoctoral fellow in the School of Optometry at Indiana University in USA. Since 2003, he has been working in the Institute of Optoelectronics and the College of Optoelectronic Engineering, Shenzhen University. He is currently a Professor of Optical Engineering. He is the Dean of the College of Optoelectronic Engineering, and the Director of Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education. Prof. Junle Qu’s research interests include nonlinear optical microscopy, fluorescence lifetime imaging, superresolution optical imaging and their applications in biomedicine.

Fiber-based methods for deep brain Calcium recording in behaving mice

Ling FuHuazhong University of Science and Technology, China

Neuronal calcium transients are reflection of neuronal action potential firing. The microscopy should be able to catch the dynamic process of calcium signal transients with a good temporal and spatial resolution for deep brain. We developed a multi-channel fiber photometry system for recording neural activities in several brain areas of an animal or in different animals. In addition, a GRIN lens based confocal microscope is also developed to detect the specific cell type calcium signal of deep brain area with single cell resolution. With a 500 μm diameter GRIN lens implanted into the deep brain, approximately hundred neurons can be imaged at 15 frames per second in vivo, which is beyond out of the traditional two-photon microscopy. The activity signals of neurons have been efficiently recorded in orbitofrontal cortices, hippocampus, and striatum nucleus in head-fixed mice with different diameter GRIN lens by this system. Our new results about visual cue-dependent memory circuit for place navigation will be also presented. As spatial coding is an important way for neurons to process information, it will be suitable for researches in deep brain function.

BiographyDr. Ling Fu is a professor in Britton Chance Center for Biomedical Photonics in Wuhan National Laboratory for Optoelectronics (WNLO), and the Executive Dean for School of Engineering Sciences in Huazhong University of Science and Technology (HUST) in China.

Dr. Ling Fu received her BS degree in Optoelectronic Instrumentation and Technology in 1999, and the ME degree in Physical Electronics in 2002 from HUST. She gained her PhD in Swinburne University of Technology in Australia in 2007 with a thesis classified as being of the highest order. Dr. Ling Fu received funding as the New Century Excellent Talents in University in 2008, the Outstanding


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Young Scholars of National Science Foundation in 2015. She was SPIE Women in Optics in 2014.

Dr. Ling Fu is the leader of in vivo Optical Microscopy Laboratory. Her research interest is optical microscopy and its applications to biomedicine. Nonlinear optical microscopy based on multiphoton absorption and higher harmonic generation has provided spectacular sights into visualization of cellular events within live tissue. Her group aims to develop real-time nonlinear optical imaging approaches to monitor how molecules work and cells interact in their natural environment. Her research focuses on the multicolor multiphoton microscopy for in vivo immunology, and confocal/multiphoton microendoscopy for neuron imaging.

Dr. Ling Fu serves as an assistant editor in Journal of Innovative Optical Health Sciences, and a Scientific Reports editorial board member. She is an International Council member of Optical Society of America (OSA), one of program chairs for 100th Annual Meeting of OSA. She is a senior member of Chinese Optical Society (COS) and serves as the leader of youth working team in Biomedical Photonics Committee in COS.

High speed non-invasive deep tissue fluorescent imaging for neuroscience

Ke SiZhejiang University, China

Optical microscopy, especially two-photon microscopy has been widely used in neuroscience. However, as imaging depth increases, its imaging quality will also degrade dramatically because of the accumulated aberration and scattered light. Adaptive optics is one of the most powerful tools to recover diffraction-limited resolution deep into the brain. However, it usually takes a lot of time for wavefront aberration measurement and compensation. Here we reported a large field of view wavefront correction method to dramatically reduce the wavefront measurement and correction time. Therefore making high speed imaging is possible. Besides, we also report a high-resolution two-photon microscopy deep into the scattering medium, by locally structure illuminating the sample in the focal volume and demodulating the fluorescent signal thereafter. The special structure-illumination pattern is design to make the focal point scanning sinusoidally only in the small focal volume. We first theoretically analyze the image formation of the structure illuminated two-photon microscopy (SITP) with D-shaped pupils and one annular one circular pupils, respectively. After that, the ability of rejecting out-of-focus background and reducing noise is demonstrated. Our experimental results show that compared with conventional two-photon microscopy the maximum imaging depth increases by hundreds micron in the mouse brain, and even in the surficial layer the imaging resolution is improved by around 15%. Moreover, no additional time will be taken during to optical aberration and scattered light compensation / rejection.

BiographyDr. Ke Si is a professor at the College of Optical Science and Engineering in Zhejiang University. He is also a joined professor in the Institute of Neuroscience Zhejiang University. Before he joined Zhejiang University, he was a research associate at Janelia Farm Research Campus Howard Hughes Medical Institute (HHMI) and Singapore-MIT Alliance for Research and Technology, respectively. He received his Ph.D. degree in NUS Graduate School for Integrative Sciences and Engineering from NUS (with Professor Colin J.R. Sheppard). His research interests include Biophotonics, Optogenetics, Deep Tissue Imaging, Nonlinear Optics, Adaptive Optics, Fluorescence Microscopy and Biomedical Imaging.

Non-invasive Optical Imaging of Tissue Morphology and Microcirculations in vivo and its Clinical Applications

Ruikang K WangUniversity of Washington, USA

Advances in optical coherence tomography (OCT) have spurred many new applications of light in biology and medicine. OCT is a new medical imaging modality in which the coherent interference of a wide spectrum light source is used to create a high resolution (micron-scale) subsurface image of tissue microstructure. Recently, we have supplemented the microstructural OCT images with additional contrast mechanisms such as blood flow imaging using the static and dynamic (Doppler) speckle effects, which provide us the ability to perform label –free optical microangiography (OMAG) of microcirculatory tissue beds The ability to visualize tissue blood flow at the microcirculation level is important in a


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variety of biomedical applications, some of which (along with the OCT and OMAG basics and the enabling technologies) will be highlighted in this talk. Examples using OMAG to delineate the dynamic blood perfusion, down to capillary level resolution, within living tissues will be given, including cerebral blood flow in small animal models, retinal vessel networks and subcutaneous skin microcirculation in humans.

BiographyDr. Wang is currently a full professor with appointments in the Departments of Bioengineering and Ophthalmology at the University of Washington, and directs the Biophotonics and Imaging Laboratory. He is an elected fellow of Optical Society of America (OSA), International Society for Optics and Photonics (SPIE) and American Institute for Medical and Biological Engineering (AIMBE). His current research interests include biophotonics and imaging, optical coherence tomography, optical microangiography, photoacoustic imaging and their applications in neurology, ophthalmology, dermatology and cancer. He has authored and co-authored more than 350 peer reviewed articles in the fields of his interests.

3-Photon Cross Section: Measurement and Application

Ke WangShenzhen University, China

Multiphoton action cross sections are the prerequisite for excitation light selection. At the 1700-nm window suitable for deep-tissue imaging, wavelength-dependent 3-photon cross sections ησ3 for RFPs and dyes are unknown, preventing wavelength selection. Here we demonstrate: (1) ex vivo measurement of wavelength-dependent ησ3 for purified RFPs; (2) a multiphoton imaging guided measurement system for in vivo measurement; (3) in vivo measurement of wavelength-dependent ησ3 in RFP labeled cells; and (4) measurement of wavelength-dependent ησ3 for a dye and its application to deep-brain imaging. These fundamental results will provide guidelines for excitation wavelength selection for 3-photon fluorescence imaging.

BiographyKe Wang is a professor at College of Optoelectronic Engineering, Shenzhen University, Shenzhen, China. His research group focus on developing fiber-based ultrashort laser sources, and nonlinear optical microscopy technologies. He is the recipient of “1000 youth talent”. He is the author or co-author of more than 70 publications and conference proceedings, and has several patents granted or pending. He is also the recipient of the Best Poster Award at Conference on Multiphoton Microscopy in the Biomedical Sciences XIII, SPIE Photonics West, 2013.

X-ray-induced Acoustic Computed Tomography (XACT)

Liangzhong (Shawn) XiangUniversity of Oklahoma, USA

Since C. Röntgen discovered X-ray more than one hundred years ago, X-ray imaging has been an invaluable tool in medical diagnosis, biology, and materials science. X-ray computed tomography (CT) has proved tremendously useful for non-invasive medical imaging ever since its inception, nearly 50 years ago. However, one issue that is intrinsic of CT is its large radiation dosage. It is estimated that up to two percent of cancer cases are the result of the radiation obtained from CT imaging. This risk therefore can potentially negate many of the benefits provided by CT. An answer to this unsolved problem is X-ray-induced Acoustic Computed Tomography (XACT). XACT utilizes a newly discovered physics principle, that X-rays can generate acoustic waves within tissue. While CT relies upon a rotating X-ray source and many X-ray projections to obtain a three-dimensional (3D) image, XACT can generate a 3D image through one single X-ray projection, drastically decreasing radiation dose. While XACT potentially has many desirable features, this revolutionary fact alone has given enough warrant to pursue this new technique. The aforementioned predictions represent the authors’ biased opinions of the most promising prospects of XACT in both diagnostic imaging for either quantitative bone density mapping or breast cancer, and in vivo radiation dosimetry during radiation therapy.


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BiographyDr. Liangzhong Xiang is an Assistant Professor in the School of Electric and Computer Engineering, and Stephenson Cancer Center at University of Oklahoma. He was the PI of the U.S. Department of Defense (DoD) Postdoctoral Training Program grant at Stanford Medical School (2012-2015) before joined OU.

Dr. Xiang’s research interest is the development of novel biomedical imaging techniques, including laser-induced photoacoustic tomography (PAT), X-ray-induced acoustic computed tomography (XACT), Electric-induced acoustic tomography (EAT).

Dr. Xiang has received many awards and honors for his work, including the Nancy L. Mergler Faculty Mentor Award (2017), SPIE Travel Scholarship Award (2016), RSNA Research Prize (2015), DoD Prostate Cancer Research Program Award (2013), and the Slvia Sorkin Greenfield Award for the best paper of the Medical Physics at AAPM 50th Annual Meeting (2008). He has served as an associate editor of Medical Physics journal, and grant reviewer for U S Department of Energy, Russian Science Foundation (RSF), and Helmholtz Association of German Research Centre.

Small animal angiography with OCT and photoacoustic imaging

Zhenhe Ma Northeastern University at Qinhuangdao, China

Optical coherence tomography (OCT) and photoacoustic imaging (PI) are both prosperous in recent years. OCT provides information of blood flow distribution by differentiating signal changes induced with particle motion, i.e. OCT angiography (OCTA). PI method is based on detection of acoustic signal induced by optical absorption. PI is also capable of imaging vascular net due to the strong absorption properties of erythrocytes. The combination of the two imaging modalities enables us to distinguish blood vessels with and without blood flow, which is significant for studying some diseases, such as ischemic stroke. Traditionally, physical contact between sample and transducer is required for using PI technique, which refrains the combination of the two methods. Here, we developed a whole-optic PI system that can detect acoustic signal in a non-contact way. Through utilizing a dichroic mirror, the new system was integrated with the OCT system successfully. Occluded blood vessels were distinguished from normal blood vessels with the integrated system.

BiographyZhenhe Ma is an associate professor at Northeastern University at Qinhuangdao. He received his Ph.D. degree in physical electronics from Tianjin University, Tianjin, China, in 2007. His research interests are optical imaging and detection.

Near and short wave infrared spectral regions for biomedical applications: tissue optical properties and agents for optical imaging and phototherapy

Tymish Y. OhulchanskyyShenzhen University, China & University at Buffalo, USA

An existence of the “optical transparency window” for biological tissues in the near-infrared (NIR) spectral range (~700-1000 nm) has been known for decades, allowing for bioimaging of small animals in biomedical research. NIR optical imaging is also emerging as a powerful yet feasible technique for human imaging, allowing for imaging guided surgery, therapy and drug delivery. Ability of NIR light to penetrated deeper into tissue is also advantageous for phototherapy (e.g., photodynamic therapy, PDT), allowing for deeper excitation of photoactive agents. Along with this, interaction of NIR light with tissues is known to produce beneficial therapeutic effects by itself: photobiomodulation (PBM) employs NIR light to increase wound healing, relieve pain, reduce inflammation, and even treat some neurodegenerative conditions.

Currently, the use of near- and short wave infrared (NIR-SWIR) light for optical imaging and therapy are being actively advanced, being induced by the rapid progress in technology (i.e., development of SWIR detectors and laser sources). With extension of imaging range in SWIR to ~1700 nm, researchers increasingly benefit from the reduced scattering and autofluorescence and achieve optical imaging of deeper tissues, using either endo- or exogenous contrast agents.

This talk will present our work on 3 different directions involving NIR and SWIR light. They are: 1) NIR-SWIR imaging using contrast agents; 2) NIR imaging guided PDT of cancer; 3) NIR PBM in vitro. Recent results in these areas will be presented and concluded with a discussion on the challenges and opportunities in the field of NIR-SWIR bioimaging and light induced therapy.


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BiographyTymish Y. Ohulchanskyy holds his B.S./M.S. (Physics) and Ph.D. (Optics and Laser Physics) degrees from Taras Shevchenko National University of Kyiv (Kyiv, Ukraine). After obtaining Ph.D. in 2001, Dr. Ohulchanskyy has joined the University at Buffalo (Buffalo, NY, USA) as a post-doctoral associate, later advancing to the position of Deputy Director at the University at Buffalo’s Institute for Lasers, Photonics and Biophotonics. Since 2016, Dr. Ohulchanskyy is in the position of Distinguished Professor in the College of Optoelectronic Engineering of Shenzhen University, Shenzhen, Guangdong, China. Dr. Ohulchanskyy’s current research interests are in the area of biophotonics, with focus on nanoformulations for optical/multimodal bioimaging and photo therapy; he also has an expertise in photophysics and physical chemistry. He has published more than 110 articles in peer-reviewed journals (>10000 citations, h-index of 46, according to Google Scholar) and has a number of patents and patent applications. Dr. Ohulchanskyy is a member of the international Society for Optics and Photonics (SPIE) and American Chemical Society (ACS), he serves on editorial boards of several journals.

Recent Advances in Photodynamic Therapy

Buhong LiFujian Normal University, China

Photodynamic therapy (PDT) has emerged as effective and non-invasive modalities for oncological and non-oncological diseases. The newly development of multi-functional activatable photosensitizers, light sources, optical monitoring techniques and clinical indications for PDT will be presented.

BiographyProf. Buhong Li is currently a professor in Biomedical Photonics at Fujian Normal University. He received his PhD degree in Optical Engineering from Zhejiang University in 2003. From 2005 to 2007, he was with Medical Imaging and Biophysics at Ontario Cancer Institute and University of Toronto as a visiting scientist. He joined in the Institute of Physics of Humboldt University of Berlin as a senior visiting fellow from April to August 2014. He has authored or coauthored more than 80 international journal and invited conference papers. His research focuses on optical monitoring for photodynamic therapy dosimetry, in particular the time- and spatial-resolved detection of singlet oxygen generation during photosensitization.

Two-photon laser scanning stereomicroscopy for high-speed volumetric imaging

Tong YeClemson University, USA

Cellular physiological functions are fulfilled in three-dimensional (3D) tissue structures. However, traditional ways of performing 3D microscopy imaging rely on acquisition of 2D image stacks, as in what we do in confocal or multiphoton fluorescence laser scanning microscopy or light-sheet microscopy. Focusing on assessing micro-tissue functions and studying cell-ECM interactions, we are interested in quantifying the beating and mechanical properties of IPS-cardiomyocyte-based organoids or studying particle diffusion in synthetic tissue constructs or the intact extracellular matrix. A common problem in those studies is how to record positions of many markers distributed in 3D as simultaneously as possible. To tackle the problem, we have proposed a novel volumetric imaging method that combines two-photon excitation of the extended depth of field and the principle of stereomicroscopy. In this two-photon laser scanning stereomicroscopy, all the markers in the volume of interest are imaged during a frame-scan with the extended depth of field, which is either a zeroth order quasi-Bessel beam or a lightly focused Gaussian beam. The 3D positions (or perception) of the markers are obtained by scanning the same volume twice, each of which uses the focus tilted differently according to the optical axis; the parallax caused by the tilted focuses can be used to calculate the relative depths of different objects. Our recent development has suggested that the multiplexing technology can perform the 3D imaging with only one frame scan and at the video-rate frame rate. This improvement has significantly elevated our imaging capability in our research.


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BiographyTong Ye is currently an Assistant Professor of Bioengineering at Clemson University with a joint appointment in the Department of Cell and Regenerative Medicine at the Medical University of South Carolina (MUSC). His lab (Nano- and Functional Imaging Lab) focuses on developing advanced imaging technologies for studying cell and tissue functions with high spatiotemporal resolution and in three dimensions. The current research interests include assessing functions of IPS cardiomyocyte-based organoids, evaluating the cartilage healthiness with the novel two-photon imager, and studying cell-ECM interactions. He received his B.S. in Physics from Fudan University, his Ph.D. in Optics from Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS) and postdoctoral training in Physical Chemistry from Institute of Chemistry, CAS. He has published over 100 journal articles and conference proceedings in the fields of laser spectroscopy and optical microscopy. He enjoys teaching imaging and instrumentation, and building microscopes with his students in the lab.

Quantitative detection and staging of cancer tissues using label-free Mueller matrix microscope

Hui MaTsinghua University, China

Polarization imaging is a promising technique for probing the microstructures, especially the anisotropic fibrous components of tissues. Among the available polarimetric techniques, Mueller matrix polarimetry has many distinctive advantages, such as providing label-free and comprehensive descriptions on the properties of tissues. Mueller matrix polarimetry can help to improve the image contrast of the superficial layers of tissues by eliminating multiply scattered photons from the deep layers. The previous literature shows that more than 85% of cancers originate from the superficial epithelium, which means that Mueller matrix polarimetry has great potential in screening and identifying cancer at an early stage. Recently, we have developed a Mueller matrix microscope by adding the polarization state generator and analyzer to a commercial transmission-light microscope, and applied it to differentiate cancerous tissues with fibrosis. Here we apply the label-free Mueller matrix microscope for quantitative detection and staging of different cancer tissues including human breast ductal carcinoma, liver cancer, and colon cancer at different stages. The Mueller matrix polar decomposition (MMPD) and Mueller matrix transformation (MMT) parameters of the abnormal tissues in different regions at in situ and invasive stages are calculated and analyzed. For more quantitative comparisons, several image texture feature parameters derived from the gray level co-occurrence matrix (GLCM) are also calculated to characterize the difference in the polarimetric images. The experimental and simulation results indicate that the Mueller matrix microscope and the polarimetric parameters can facilitate the quantitative detection of cancer tissues with fibrosis at different stages.

BiographyDr. Hui Ma is currently a professor of the Graduate School at Shenzhen, as well as the Tsinghua-Berkeley Shenzhen Institute, Tsinghua University. He graduated from the Department of Physics, Imperial College London with a Ph.D degree in 1988. Prof. Hui Ma is the Director of Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, and Shenzhen Key Laboratory for Minimal Invasive Medical Technologies. He is also the Vice director of Biomedical Optics Branch, Chinese Optics Society. Prof. Hui Ma’s research interests include optical techniques based on polarized photon scattering and their biomedical applications.

Effect of Loud Sound Exposure on cochlear blood flow measured by OCTA

Suzan DziennisOregon Health & Science University, USA

The mammalian cochlea has an extremely high metabolic demand, in order to maintain sensitive hearing function. This demand is met by blood flow through the vascular network in the lateral wall of the scala media, the stria vascularis (SV). Loud sound exposure (LSE) results in immediate metabolic stress which can lead to irreversible hearing loss. LSE decreases blood flow, and it is likely that this change plays an important role in noise-induced deafness mechanisms. However, it is unclear whether this change in blood flow is induced by local metabolic pathways or direct mechanical insult to the SV. We have attempted to separate the metabolic and mechanical pathways to SV flow regulation during loud sound exposure, by using Cadherin23-missense mutant mice (salsa) mice which lack Cadherin23 for tip links required for the activation of mechanosensitive (MET) channels on outer hairs cells and optical coherence tomography angiography (OCTA) to measure changes in blood flow. We hypothesized that activation of metabolic pathways and corresponding decreased blood flow would be attributed to the activation of MET channels rather than physical forces applied to the organ of Corti. Our OCTA imaging results show that noise-induced blood flow changes in salsa mice differed from


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controls. Despite this, noise-induced metabolic stress pathways did not differ in comparison to controls. Although compensatory mechanisms may occur, these results suggest that the MET channel is possibly part of a feedback loop regulating cochlear blood flow, but may not contribute to how the cochlea responds to changes in metabolic demand.

BiographyDr. Dziennis is a Sr. Research Associate in the Department of Otolaryngology at Oregon Health and Science University. Suzan Dziennis received her Ph.D. Degree in Integrative Biomedical Sciences from Oregon Health and Science University in 2004. She completed her post-doctoral fellowship in the Department of Anesthesiology at OHSU where she received a National Research Service Award and an American Heart Association fellowship to study the protective mechanisms of estrogen on stroke. Her research interests have focused on vascular disorders. She is currently studying the deleterious effects of loud sound on hearing function using multiple molecular and cellular approaches combined with optical techniques including optical coherence tomography angiography.

High throughput nanofabrication and multi-photon imaging based on temporal focusing

Shih-Chi ChenThe Chinese University of Hong Kong, Hong Kong, China

I will present our recent work on parallel nanofabrication and high-resolution multi-photon imaging based on temporal focusing. In a temporal focusing-based laser fabrication system, the spectrum of a femtosecond laser pulse is first spatially separated by a digital micromirror device (DMD), serving simultaneously as a diffraction grating and a programmable binary mask. After collimation, an objective lens recombines the spectrum to the focal region, forming a high-intensity, depth resolved light sheet for laser micromachining. Examples of high-throughput nanofabrication will be given in parallel two-photon polymerization processes and 3-D metal printing, achieving a resolution of 500 nm – the best reported to date. In terms of imaging, as the axial resolution in a temporal focusing system is slightly compromised comparing to point-scanning systems, in the second part, I will present a new two-snapshot structured light illumination (SLI) reconstruction algorithm for fast image acquisition with improved axial resolution. The new algorithm, which only requires two mutually π phase-shifted raw structured images, is implemented on a temporal focusing fluorescence microscope to enhance its axial resolution via a DMD. Experimental results show promising depth-discrimination capability with an axial resolution enhancement rate of 24.6%. The two-snapshot algorithm presents comparable optical cross-sectioning capability and better contrast reconstruction than those adopting conventional root-mean-square (RMS) reconstruction methods, which may find important applications in high-speed 3-D imaging.

BiographyProf. Shih-Chi Chen received his B.S. degree in Mechanical Engineering from the National Tsing Hua University, Taiwan, in 1999. He received his S.M. and Ph.D. degrees in Mechanical Engineering from the Massachusetts Institute of Technology, Cambridge, in 2003 and 2007, respectively. Following his graduate work, he entered a post-doctoral fellowship in the Wellman Center for Photomedicine, Harvard Medical School, where his research focused on biomedical optics and endomicroscopy. From 2009 to 2011, he was a Senior Scientist at Nano Terra, Inc., a start-up company founded by Prof. George Whitesides at Harvard University, to develop precision instruments for novel nanofabrication processes. Joining since 2011, he is presently an Associate Professor in the Department of Mechanical and Automation Engineering at the Chinese University of Hong Kong. His current research interests include ultrafast laser applications, biomedical optics, precision engineering, and nanomanufacturing. Prof. Chen is a member of the American Society for Precision Engineering (ASPE), American Society of Mechanical Engineers (ASME), SPIE, The Optical Society (OSA), and Institute of Electrical and Electronics Engineers (IEEE). He is the recipient of a 2003 R&D 100 Award for the design of a microscale six-axis nanopositioner. In 2013, he received the Early Career Award from University Grants Committee of Hong Kong.

Application of multiphoton microscopy in the diagnosis and therapy of cancer

Jianxin ChenFujian Normal University, China

Multiphoton microscopy uses ultrafast, near-infrared laser as excitation sources and bases on nonlinear optical signals of intrinsic fluorophores in tissues such as two or three photon-excited fluorescence (2PEF or 3PEF) and second or third harmonic generation (SHG or THG), providing enhanced imaging penetration depths in scattering samples, reduced overall specimen photodamage, photobleaching and phototoxicity. These advantages make it more suitable for studying


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intact living tissues at the cellular level without the need of fluorescent dyes. We focus on esophageal cancer, gastric cancer, colorectal cancer, cervical cancer, breast cancer, liver cancer, pancreatic cancer, and brain tumor as the object of study. Based on 2PEF and SHG signals, we established relevance between optical diagnostic features and physiological and pathological states of tissue which was used to identify tumor tissue. This medical photonics technology has shown an abundance of potential value for medical applications since it facilitates the clinical pathological diagnosis, real-time judgment of surgical margin, clinical endoscopic disease screening, and real-time pathological evaluation of clinical endoscopic biopsy tissue.

BiographyJianxin Chen received her Ph. D in 2002 from Harbin Institute of Technology (China) and completed postdoctoral studies from Peking University (China). She is Professor and Associate Dean of College of Photonic and Electronic Engineering, Fujian Normal University and Director of Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education. She was a Visiting Professor at Cornell University from 2014 to 2015. She also worked as a Visiting Professor at Yale University from 2010 to 2011. In 2008, she was a Visiting Scholar at BC Cancer Research Centre of Canada for half of year. She has authored or coauthored more than 150 papers in the international journals. Her research interests focus on application of multiphoton microscopy in the diagnosis and therapy of cancer.

Micro-optical coherence tomography for evaluating skin conditions

Linbo Liu Nanyang Technological University, Singapore

Understanding and diagnosis of human diseases, including but not limited to skin diseases, has been hindered by the lack of a noninvasive subcellular resolution subsurface imaging tool. Biopsy and follow up histology is the current gold standard for diagnosis of skin diseases. As histology is subject to artifact, it provides information that is not wholly representative of the tissue in its native state. In addition, it may be very difficult to take biopsies from facial skin or children. Furthermore, it is time consuming to find specific cellular features because each histology or EM image samples a very small portion of the specimen. Currently noninvasive imaging technologies is not capable of detect early signs of diseases accurately, which is mainly caused by their inability to capture the subcellular level processes underlying disease progression. µOCT will be used for improving the quality of healthcare by providing subcellular-level microanatomical information complementary to those of standard of care tools. Specifically, µOCT is capably of identifying key cellular and extracellular processes associated with disease progression with is absent in the current diagnostic imaging. We have developed a desktop Micro-OCT imaging device with a flexible handheld probe. This device provides an isotropic spatial resolution of 2.5 um, which enables visualization of layered structures in normal skin and inflammatory cells in skin affected with herpes zoster in vivo. These preliminary results demonstrate the feasibility of retrieving cellular-level histological information by use of Micro-OCT, which is absent in the data provided by other modalities.

BiographyLiu Linbo received B.Eng in Precision Instrument in 2001, and M. Eng. in Optical Engineering in 2004, from Tianjin University, China. He received PhD in Bioengineering in 2008 from National University of Singapore before his postdoctoral training in Wellman Center in Photomedicine, Harvard Medical School (HMS) and Massachusetts General Hospital (MGH) from 2008 -2011. He was promoted as an Instructor in Dermatology at HMS. Currently, Dr Liu is with School of Electrical and Electronic Engineering and School of Chemical and Biomedical Engineering as a Nanyang Assistant Professor since September 3, 2012 and his research interests are mainly focused on development and validation of non-invasive, cellular and sub-cellular resolution imaging methods for disease diagnosis and life science research.

OCT angiography with maximum available sample size

Peng LiZhejiang University, China

A label-free maximum available sample size (MASS) OCT angiography is proposed. By distinguishing three-dimensional dynamic blood flow regions and removing static surrounding tissue, it enables an in vivo optical visualization of label-free, three-dimensional blood perfusion with high motion contrast, and further rapid acquisition of morphological and


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physiological functional information of blood perfusion in the capillary level. With the combination of the conventional OCT that is capable of spatial scattering signals collection and the dynamic light scattering technique that enables motion recognition, some key scientific problems are solved, such as the theoretical mechanism of label-free blood flow imaging, a complex correlation based method for high sensitivity detection of tiny blood flow movement, an effective strategy for a parallel collection of a mass of independent scattering samples on the basis of temporal, spatial, spectral and angular diversities and so on. Furthermore, the proposed technique is applied to the research on cerebral blood flow angiography and functional imaging. This technique is capable of providing strong theoretical guidance and evaluation for pathological mechanism research, disease clinical diagnosis, disease treatment and drug development.

BiographyDr. Peng Li is currently an Associate Professor of Optical Engineering at the Zhejiang University, Hangzhou, China. Dr. Li received his B.E. degree in Optoelectronic Information Engineering, and Ph.D. degree in Optical Engineering from the Nanjing University of Science and Technology in 2005, and 2010, respectively. From 2010 to 2013, he pursued Post-Doctoral studies in the Department of Bioengineering at the University of Washington, Seattle, US. And then he joined the Zhejiang University in 2013. His current research interests include the development of non-invasive, high-resolution, high-speed optical biomedical imaging technology: Optical Coherence Tomography (OCT), OCT Angiography, OCT Elastography, Laser Speckle, Photoacoustic Imaging, and their applications in neurology, ophthalmology, dermatology and tumor. He has published more than 30 peer-reviewed SCI journal articles and more than 10 international conference papers.

Integration of Time and Frequency Domain OCT for Measurements in Hearing Mechanics

Fangyi ChenSouthern University of Science and Technology, China

Phase-sensitive optical coherence tomography (PS-OCT) has been widely employed for subnanometric vibrometry occurring within the auditory system of mammals and thus acting as a useful tool in hearing research. Currently, most PS-OCT systems are developed based on the spectral domain OCT (SD-OCT) technique, which enables image-guided vibrometry by concurrently performing real-time imaging and vibration analysis. However, vibrometry at high frequencies (> 20 kHz), which is crucial for investigating the hearing function in small mammals, is precluded by the limited line-scan rate of such systems. PS-OCT systems developed based on the time-domain OCT (TD-OCT) technique instead can analyze high-frequency vibration but are restricted to vibrometry without image guidance due to their lack of capability in real-time imaging. We have developed a PS-OCT system involving two parts respectively based on SD- and TD-OCT techniques. The SD-OCT part is responsible to real-time imaging, providing guidance for the vibrometry. The TD-OCT part, interfaced to a lock-in amplifier, gives the amplitudes of the detected vibrations, including the high-frequency ones. The micron-level resolution of the guiding images guarantees accurate localization of the points of interest. The minimum detectable vibration amplitude was demonstrated to be ~0.02 nm in piezoelectric ceramic elements and ~0.5 nm in less-reflective biological tissues. Using ex vivo middle-ear samples from guinea pigs, we successfully demonstrated the capability of our developed PS-OCT system in image-guided vibrometry of the auditory organs under acoustic stimulation at multiple frequencies. The highest detectable frequency could reach 40 kHz, which covers the frequency range of hearing in small mammals.

BiographyAssociate Professor Fangyi CHEN obtained his Bachelor and Master degrees both in the field of Biomedical Engineering from Tsinghua University (Beijing, China) in 1997 and 2000, respectively. He received his PhD in the field of Electrical and Computer Engineering from The University of Boston in 2005. He worked as a Research Associate and then Research Engineer in Oregon Hearing Research Centre from 2005 to 2012. After selected into the second round of the “Thousand Youth Talent Program” in 2012, Dr. CHEN joined Southern University of Science and Technology (SUSTech, Shenzhen, China) as an Associate Professor. From 2013, he became the vice president of the Zhiren College in the SUSTech. As one of the founders, Associate Professor CHEN became the Executive Dean of the Department of Biomedical Engineering in 2016. His research focuses on the development of the instruments in otolaryngology, in vivo study of the cochlear mechanics, and functional assessment of the hearing and vestibular systems in animal models. The specific research topics include the investigation of the spatial distribution of cochlear amplifiers, high-throughput screen for the genes related to the sense of hearing/balance, and development of the portable devices for the in vivo functional assessment of the hearing/vestibular systems.


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CIOP2018-2018-000115Rethinking the resolution of an optical microscope: from early concepts to contemporary calculationsMengting Li, ZhenLi Huang | Huazhong University of Science and Technology, ChinaResolution describes the maximum resolving power of an optical microscope and thus is undoubtedly one of the most important parameters in optical microscopy.

CIOP2018-2018-000152Fluorescence lifetime imaging for real-time monitoring of fluctuations in protein concentrations in nuclear organellesSvitlana M. Levchenko, Junle Qu | Shenzhen University, Shenzhen, ChinaWe employed FLIM approach for real-monitoring of changes in protein concentrations in live cells. We found surprisingly high fluctuations in protein concentrations in major nuclear organelles. The obtained results provide unexpected insight into cellular metabolism.

CIOP2018-2018-000212A High-Fidelity Time Reversal (Digital Optical Phase Conjugation) system to suppress the scattering effect of a turbid mediumZhipeng Yu, Zihao Li, Puxiang Lai | Hong Kong Polytechnic University, Hong Kong, China In this paper, we present a plain yet robust self-embedded four-phase approach that can counteract the optical beam imperfection and wavefront modulator’s surface curvature, combining with a non-phase-shifting in-line holography method without using an electro-optic modulator (EOM).

CIOP2018-2018-000251X-ray phase-contrast imaging Using cascade Talbot-Lau interferometersJi Li, Jianheng Huang, Yaohu Lei, Xin Liu, Zhigang Zhao | Shenzhen University, China X-ray phase-contrast imaging (XPCI) has shown great potential for biological and medical imaging applications. A cascade Talbot–Lau interferometer for XPCI was implemented and its angular sensitivity was measured and discussed.

CIOP2018-2018-000248Non-contact all-optical specklegram-based photoacoustic sensingHuanhao Li, Fei Cao, Yingying Zhou, Puxiang Lai | Hong Kong Polytechnic University, Hong Kong, China We propose a non-contact photoacoustic sensing method by monitoring the variation of the optical speckle patterns without interference. The proposed method can characterize the photoacoustic perturbations, with performance being validated by conventional transducer-based photoacoustic approach.

CIOP2018-2018-000255Optical resolution photoacoustic microscopy with ultra large field of viewWei Qin12, Tian Jin12, Heng Guo12, and Lei Xi12 | 1 Southern University of Science and Technology, China; 2 University of Electronic Science and Technology of China, ChinaWe report an optical resolution photoacoustic microscopy with a spatial FOV of 40 mm in lateral and 12 mm in axial, which expends the effective imaging domain to one order that of existing ORPAMs.

Oral Talks


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CIOP2018-2018-000267Quantitative tumor photobiomodulationTimon Cheng-Yi Liu, Qiu-Mei Lin, Ling Zhu, Rui Duan | South China Normal University, China There has been in-vivo tumor photobiomodulation. The re-analysis with quantitative difference found that it did not affect tumor incidence and matured tumor growth, but modulated early tumor growth. Its cellular mechanism was also studied.

CIOP2018-2018-000057Validation of a miniature sphygmomanometer using photoplethysmographyXiaoman Xing | Suzhou Institute of Biomedical Engineering and Technology, CAS, China This work validates a beat-to-beat optical blood pressure (BP) estimation paradigm using only photoplethysmogram (PPG) signal from fingertips.

CIOP2018-2018-000103Fast, in-situ, label-free imaging to single nanoparticle and virus by using surface plasmon polariton in-plane scatteringXinchao Lu1, Xuqing Sun1, Liwen Jiang12, Hongyao Lui1, Wei Xiong1 | 1 Institute of Microelectronics of CAS, China; 2 University of Chinese Academy of Sciences, China A method to image the single nanoparticle and virus by using Surface Plasmon Polariton in-plane Scattering has been presented, which is potential for application in the fast, in-situ virus detection in water environment.

CIOP2018-2018-000252Opto-acousto-fluidic microscopy for three-dimensional imaging of droplets and cellsTian Jin12, Lei Xi12 | 1 Southern University of Science and Technology, China; 2 University of Electronic Science and Technology of China, ChinaThis paper reports a novel method, opto-acousto-fluidic microscopy, for label free detection of droplets and cells in microfluidic networks. The microscopic system possesses capabilities of visualizing flowing droplets, analyzing droplet contents, and detecting cell populations encapsulated in droplets.

CIOP2018-2018-000274Preparation and Luminescent Properties of Rare earth Doped Nano-fluorapatitePeng Zhou | Changchun University of Science and Technology, China Rare earth doped apatite up-conversion nanomaterials have wide application in tracing the situation of repair the damaged hard tissue and photodynamic therapy. This study is to further improve the luminous property of materials for biomedicine.

CIOP2018-2018-000292Study on the preparation method of high contrast PDMS micropost arrays with opaque top surfaceBo Li, Mingli Dong*, Chunran Wang, Fan Zhang | Beijing Information Science & Technology University, ChinaIn this paper, a method of modifying the top surface of micropost using magnetic beads was proposed to attain opaque top surface of the micropillar, enabling a higher contrast between the top surface and the substrate of the micropillar array top surface.


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CIOP2018-2018-000370High Speed Large-Field-of-View Scanning Microscopy Imaging Technology and System ImplementationLiang Shan1, Muyue Zhai2, Louis Tao1, Shuxiang Dong1, Heng Mao*1 | 1 Peking University, China; 2 Beijing Institute of Technology, ChinaA microscopic imaging system for slice scanning is developed. By a camera series exposures under continuous high-speed scanning motion, a 20 mm x 15 mm area is scanned less than 60 s, without blurring or out of focus.

CIOP2018-2018-000272Ultracompact high-resolution photoacoustic microscopyQian Chen1,2, Lei Xi1,2,* | 1 Southern University of Science and Technology, China; 2 University of Electronic Science and Technology of China, ChinaCurrently, developing a light and miniature ORPAM with high imaging quality is a concerned problem. We designed an ultracompact probe and demonstrated that it has potential for internal organ and human oral cavity inspecting.

CIOP2018-2018-000031Compact integrated biosensors based on the silicon slot microring resonatorJianxun Hong1, Zhirong Tan1, Xiaoyu Liang1, Jiahua Zhang2 | 1 Wuhan University of Technology, China; Huazhong University of Science and Technology, ChinaWe presented a slot silicon microring resonator for biosensor applications. The radius of the microring is as smaller as 10 mm. The sensitivity and the LOD of sensor are 980.24 nm/RIU and 3.18x10-3 RIU, respectively.

CIOP2018-2018-000338Interference of Photobiomodulation on Neural Differentiation of Human Umbilical Cord Mesenchymal Stem CellsHongjun Wu | Tianjin Polytechnic University, China The objective is to explore the optical parameters and mechanism of photobiomodulation on directional neural differentiation of human umbilical cord mesenchymal stem cells (hUCMSCs) and provide theoretical basis for neurogenesis.


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Invited Talks

Single-molecule Fluorescence Spectroscopy based on Advanced Correlation and Distribution Analysis

Guangcun ShanBeihang University, China & UCLA, USA

During the last decade, single-molecule fluorescence spectroscopy has become a popular method for studying the structure and dynamics of biomolecules such as proteins, DNA and RNA and of the interactions between them. Single-molecule fluorescence resonance energy transfer (FRET) spectroscopy based on Fluorescence Correlation Spectroscopy (FCS) and Photon Arrival-time Interval Distribution (PAID) analysis is utilized to monitor the interactions by fluorescence detection with simultaneous determination of brightness, coincidence, diffusion time, and occupancy of labeled biomolecules undergoing diffusion in a confocal detection volume, which is recording the time of arrival ofall detected photons, and then plotting the 2-dimensional histogram of photon pairs, where one axis is the time interval between each pair of photons 1 and 2, and the second axis is the number of other photons detected in the time interval between photons 1 and 2. The single-molecule FRET data performed on dye-labeled dsDNA is fitted with the PAID data-fitting model, the accuracy of which extracted using PAID matches the accuracy of the other methods and also the Monte-Carlo simulation data. These results here will allow the monitoring and thereby analysis of the biomolecular interactions of interest in a cellularenvironment.

Biography Dr. Guangcun SHAN has been a full professor in Beihang University within the support of National 1000-Talents Youth Program since March 2016. Dr. Shan has been a visiting professor in Saarland University, Germany in 2016, and also been a senior visiting scholar in UCLA recently in May and June of 2018. Guangcun has received the B.Eng. degrees in Electronic Information Engineering from Xi’an Jiaotong University in 2004, M.Sc. degrees in 2007 from Fudan University, Shanghai, and the Ph.D. degree in 2013 from City University of Hong Kong. He has previously undertaken research attachments at Shanghai Institute of Microsystem and Information Technology, China. In 2012, he has worked as a visiting scholar in The Fu Foundation School of Engineering and Applied Science, Columbia University, USA. His research interests include the nanophotonics and single-molecule fluorescence setup design, precision instrument and MEMS sensors, as well as the design, fabrication, and characterization of quantum-dot-based and graphene-based nanodevices. Dr. SHAN is a member of the IEEE, SPIE and ASME. At the end of 2013, he was awarded a Max-Planck Research Fellowship to design and develop the 2-D layered structures for nanosensor and quantum spin Hall Insulators.

Laser frequency-shifted Feedback Profilometry and Tomography

Yidong TanTsinghua University, China

A promising method for profilometry and tomography is proposed, which combines the high sensitivity of the laser frequency-shifted feedback interferometry and the axial positioning ability of the confocal microscopy. The surface profile is measured by combination of the amplitude and phase information of the feedback light reflected by the sample, determining the coarse and fine measurement of the sample respectively. The inner structure measurement can be realized with the tomography ability of laser confocal microscopy by the amplitude information. The surface profile of a grating and the tomography of a micro-gyroscope as well as the biological samples imaging are presented in the talk.

BiographyYidong Tan was born in October 1980. He received the B.S. and Ph. D. degrees from Tsinghua University in 2003 and 2008, respectively. He became a faculty at Tsinghua University in 2010. He was a visiting scholar at California Institute of Technology. He was awarded China National Science Fund for Excellent Young Scholars in 2017. His current research interests are laser technology and precision measurement. He is now a principal investigator of three projects supported by National Nature Science Foundation Programs, one project by National Instrumental Key Program and two projects by Natural Science Foundation Programs of Beijing. He



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has published 81 papers covered by SCI. He also received about 30 patents and is invited for presentation in international conferences for more than 30 times. He was awarded excellent graduate of Tsinghua University, Wang Daheng prize for University students of Chinese Optical Society, and excellent postdoc of Tsinghua University. He also received 3 prestigious awards, including 1 first-class and 2 second-class prizes. He is now the committee members of several organizations including Testing Committee of Chinese Optical Society, Photoelectric Technology Committee and Opto-Electronic-Mechanical Technology & System Integration Chapter of China Instrument and Control Society. He serves as editorial board members for several journals, such as Infrared and Laser Engineering, Laser Technology and Journal of Applied Optics.

Laser differential confocal interference comprehensive measurement method for spherical parameters and its instrument

Lirong QiuBeijing Institute of Technology, China

At present, different measurement method was used to achieve different parameter measurements of a spherical lens, and multi-parameter measurements of a spherical lens have low measurement accuracy and efficiency. We propose a new, laser differential confocal interference multi-parameter measurement (DCIMPM) method to achieve the high precision measurement of the multi-parameters for spherical lens. Based on DCIMPM, a multi-parameter comprehensive measurement system is developed for spherical lens, which uses the laser differential confocal parameter measurement technique to measure the radius of curvature, thickness, refractivity, focal length of spherical lens and the axial space of the lens groups, and uses the laser interference measurement technique to measure the surface figure of a spherical lens. Therefore, the DCIMPM system, for the first time, achieves high accuracy multi-parameter comprehensive measurements of a spherical lens on a single instrument. Experiments indicate that the developed DCIMPM system can achieve a measurement accuracy of 5 × 10−6 for the lens radius, 3× 10−5 for the lens thickness, 2.0 ×10−4 for the lens refractivity, 1.0× 10−5 for the lens focal length and a peak to valley of λ/20 for the surface figure of the lens. The DCIMPM principle and system provide a new approach to achieve multi-parameter comprehensive measurements for spherical lens.

Biography Qiu Lirong is a professor with Ph. D., who works in Beijing Institute of Technology. She was selected as one of the science and technology innovation leaders of the National high-level talents special support plan in 2016, and one of Young and middle-aged leaders of science and technology innovation of Science and Technology Ministry of China in 2014, and she was supported by the National Science Fund for Excellent Youth Scholars. And she won the Beijing Young Technology Award.

She dedicated to the research on the method, technology and equipment of optical precision imaging and measuring. In recent 5 years, she has presided over nearly 10 projects about confocal microscopy technology, which included 2 National Fund for key project of National Natural Science Foundation. She published about nearly 40 papers on the SCI-indexed journals, which 10 papers were published in Optics Express and Optics Letters. And she gained nearly 50 invention patents, and won one time of the second Award of National Defense technology innovation, the first Award of Technology of China Society of Metrology and testing.

Rigorous Design of Wide Angle 2D Dot Patterns for Structured Light Applications

Jianhua JiangLightSoft LLC, USA

Recent structured light applications such as 3D facial recognition often require dot patterns which have spanning angles of 70-80 degrees. Due to the wide spanning angles, such dot patterns can be only realized by the beam splitters with the grating period on the order of several times of the source wavelength. Therefore traditional paraxial scalar diffraction theory cannot be applied to design such beam splitters. Non-paraxial diffraction theory and rigorous coupled wave theory (RCWA) must be employed in order to accurately design and analyze these wide angle beam splitters. In this paper, we will use 3D RCWA design engine available in LightSoft’s GratingMaster® product to rigorously design wide angle beam splitters. Several grating profile encoding schemes are used, such as classic Dammann grating encoding, media encoding. Especially we will employ a novel, efficient polynomial encoding scheme to design a 5x7 dot pattern with 70 degree of spanning angles. In addition, we will show how to speed up the design process by combining non-paraxial scalar theory and the rigorous 3D RCWA algorithm.


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BiographyEducation: BS in Physics, Tsinghua University, 1993

MS in Physics, Tsinghua University, 1996Ph.D. in Optical Science and Engineering, Univ. of Alabama in Huntsville, 2000

Work Experience: Research Associate, Univ. of Alabama in Huntsville, 2000-2006Senior Computational Scientist, Breault Research Organization, 2006-2016President, LightSoft LLC, 2016- Present

Cavity enhanced terahertz sensing with both the capacity of substance identification and nano-scale resolution

Zhanghua Han Nanjing University of Science and Technology, China

Terahertz spectroscopy has attracted extensive research interest in recent years due to its capacity of realizing substance identification by observing the characteristic absorption frequencies of chemical molecules, which promises a large variety of applications ranging from security checking to medical diagnosis. However, due to the large wavelengths of terahertz radiations, the required sample volume is usually quite large to get an observable absorption, which restricts the terahertz applications. Although many approaches have been investigated to improve the sensitivity, the achieved sensitivity is still not high enough or the capacity of substance identification may be affected. In this talk, I will introduce our recent work by using a terahertz cavity to realize the detection of sample with nano-scale thicknesses while retaining the capability of substance identification.

BiographyZhanghua Han is a professor at Advanced Launching Co-innovation Center, Nanjing University of Science and Technology. He obtained his bachelor’s degree in materials science from Zhejiang University in 2003, where he also got his PhD degree in optical engineering in 2008. After that he did his postdoctoral researches first at the University of Alberta, Canada working on the fabrication of plasmonics devices and then at the University of Southern Denmark on active plasmonics. He has published around 50 papers on plasmonics waveguides and devices with an H index of 20 and a total citation number over 2000. His current research interest focuses on general terahertz photonics and terahertz plasmonics.

Continuous Wave Lidar for Atmospheric Environmental Sensing

James NagelHarris Corporation, USA

High-precision measurements of atmospheric constituents including carbon dioxide and methane from land, air, and space are important for applications ranging from climatological modeling, environmental monitoring, and industrial safety. While many current state-of-the-art spectroscopic sensors are based on passive optical techniques, such instruments have limited performance due to operational requirements and systematic biases that are inherent in their methods. In contrast, laser-based sensors can be used for measurements with greater sensitivity and lower bias, but are technologically challenging to implement. In this talk, we will review recent advances in open-atmospheric lidar sensing that are enabling innovative measurements with greater precision than has previously been achieved. Specifically, we will discuss the Intensity Modulated Continuous Wave (IMCW) approach developed by Harris over the last decade and its implementation from ground and air. This includes GreenLITE™, a unique system for real-time two-dimensional atmospheric mapping of CO2 and CH4 concentration levels and fluxes at ground level across small sites (5 to 25 km2), and the Multi-functional Fiber Laser Lidar (MFLL) instrument currently deployed as part of NASA’s Earth Venture suborbital mission ACT-America for airborne studies of sources and atmospheric transport of CO2 and CH4. Recent advances towards a potential space-based lidar instrument will also be discussed.

BiographyTBA


Session 4


CIOP2018-2018-000006Measurement of specular surfaces by an one-shot-projection method with closed form solutionsZhenzhou Wang | Shenyang Institute of Automation, China This paper describes a method of measuring the shapes of specular surfaces with one-shot-projection of structured laser patterns. The closed form solution is achieved for both incident rays, reflected rays and their intersections (samples of surface points).

CIOP2018-2018-000027Tunable hybrid optical filter based on a passive cavity for femtosecond lasersXiao Xiang1,2, Dongdong Jiao1,2, Tao Liu1,2, Shougang Zhang1,2, and Ruifang Dong1,2,* | 1 National Time Service Center, CAS, China; 2 University of Chinese Academy of Sciences, ChinaUtilizing the mechanism of cavity secondary resonance, we proposed a tunable hybrid optical filter combined band-pass spectral and low-pass noise filtering for femtosecond lasers. The filter bandwidth can be tuned by stabilizing the cavity length to different transmission peaks.

CIOP2018-2018-000084Synthetic-Wavelength-Based Dual-Comb Interferometry for High-Speed and High-Precision Distance MeasurementZebin Zhu, Kai Ni, Qian Zhou, Guanhao Wu | Tsinghua University, China We propose a dual-comb ranging system based on synthetic-wavelength interferometry. It can realize absolute distance measurement with ~2.7 m ambiguity range, ~3 nm precision within ~10 ms averaging time.

CIOP2018-2018-000098Application of Wavelet threshold Desoising in PMD Measurement by Fixed Analyzer MethodYuyang Sha, Lixia Xi, Xiaoguang Zhang, Xianfeng Tang, Wenbo Zhang | Beijing University of Posts and Telecommunications, ChinaThis paper presents the algorithm flow based on wavelet threshold denoising and discusses the selection principles of wavelet threshold, wavelet threshold function, mother wavelet and the number of wavelet decomposition layers.

CIOP2018-2018-000155Using blob to analyze image processing method to achieve precision detection of IFU optical fiber microplateGeng Tao, Wang Wen, Wang Anzhi, Bai Xingyu, Chen Longzhen, Jin Xiren, Yan Qi | Harbin Engineering University, ChinaOptical precision measurement of Integral Field Unit quartz microplate based on Blob analysis.

CIOP2018-2018-000162Research on Singular Value Decomposition Denoising Algorithm on Polarization Mode Dispersion MeasurementChu Yalei, Zhang Yangan, Yuan Xueguang, Ren Xiaomin | Beijing University of Posts and Telecommunication, ChinaThis work is supported by Fund of State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications) (No. IPOC2016ZT13), P. R. China.

Oral Talks


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CIOP2018-2018-000169Measuring pulse duration in the far field for high-energy petawatt lasersJianwei Yu, Xiaoping Ouyang, Li Zhou, Youen Jiang, Baoqiang Zhu, Jianqiang Zhu | Shanghai Institute of Optics and Fine Mechanics, CAS, ChinaThe feasibility of measuring pulse duration in the far field in high-energy petawatt lasers using single shot autocorrelation is studied.

CIOP2018-2018-000170Advances in optical freeform surface representations and their applicationsJingfei Ye1, Qun Yuan2, Zhishan Gao2 | 1 Nanjing University of Information Science and Technology; 2 Nanjing University of Science and Technology, China In this talk, we will present a detailed review of the different types of optical freeform surface representation techniques and their applications and discuss their properties and differences. Furthermore, we analyze the future trends and applications of optical freeform surface representation techniques in modern optics.

CIOP2018-2018-000249Simultaneous dual-wavelength reconstruction based on low rank mixed-state and phase modulationXue Dong1,2, Xingchen Pan1, Cheng Liu2, Jianqiang Zhu1 | 1 Shanghai Institute of Optics and Fine Mechanics, CAS, China; 2 University of Chinese Academy of Sciences, China We propose a single shot dual-wavelength phase retrieval method based on coherent modulation imaging. The complex amplitude of each wavelength can be reconstructed simultaneously and the feasibility of this method was experimentally verified.

CIOP2018-2018-000265High Accuracy Stress Measurement with Ptychographic Iterative EngineCheng Bei1,2,3, Zhang Xuejie1, Liu Cheng1, Jianqiang Zhu1* | 1 Shanghai Institute of Optics and Fine Mechanics, CAS, China; 2 Shanghai Tech University, China; 3 University of Chinese Academy of Sciences, ChinaWe put a stressed disc into collimated light in circularly polarized optical field, drew support from ptychography to reconstruct the probe, and get high accuracy isochromatics, isoclinics and isopachics with the aid of phase shift method.

CIOP2018-2018-000275X-ray detector with high temporal resolution by using pulse-dilation technologyHouzhi Cai, Wenyong Fu, Dong Wang, Jinyuan Liu, Jinghua Long | Shenzhen University, China In this paper, a new x-ray detector is reported by coupling pulse-dilation technique with a traditional detector.

CIOP2018-2018-000282Time offset measurement of 100 km long fiber link with dual-comb linear optical samplingAbulikemu Abuduweili, Xing Chen, Guanyu Liu, Zhigang Zhang | Peking University, ChinaWe demonstrate a time offset measurement with sub-picosecond resolution over l00 km long fiber using asynchronized dual-comb linear optical sampling.

CIOP2018-2018-000402Study of RGB-D Point Cloud Registration Method Guided by Color InformationQin Ye, Hang Liu, Yuhang Lin | Tongji University, ChinaThis paper presents a new approach to align different frames point cloud obtained by RGB-D camera, and it takes into account visual textures and geometric information simultaneously.


Session 4


CIOP2018-2018-000404Study on cascaded stepwise singular value decomposition and its application in laser absorption spectroscopyTANG Qi-xing1,2, ZHANG Yu-jun1*, LIU Guohua1,2, FAN Bo-qiang1,2 | 1 Anhui Institute of Optics and Fine Mechanics, CAS, China; 2 University of Science and Technology of China, ChinaIn order to effectively improve the signal-to-noise ratio, a new method of cascaded stepwise singular value decomposition has been proposed. By constructing different matrices, the low-frequency noise and high-frequency noise are removed in stages.


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Invited Talks

Mode division multiplexed optical communications based on ring core fibres

Siyuan YuSun Yat-sen University, China; University of Bristol, UK

In spatial division multiplexed optical communications systems based on conventional MMF/FMF, rapidly-increasing MIMO complexity poses a major limitation to increasing capacity as it become prohibitively costly and power-hungry. This problems has prompted the exploration of ring core fibres (RCF).Due to its unique mode characteristics of fixed number of 4 modes in each mode group, RCFs can significantly decrease the MIMO complexity. They are likely to be more scalable towards the higher order mode space because of increasing difference between mode-group effective refractive indices. RCF mode multiplexer/demultiplexers (DEMUX) are simpler to implement than LP mode DEMUX. RCF amplifiers can provide more equalized gain for all guided signal modes. These characteristics make RCF-based MDM systems highly attractive.

In this talk I will first make a theoretical comparison between RCF-based MDM scheme and other MMF/FMF based MDM schemes in terms of system spectral efficiency and MIMO complexity. This will be followed by reviews of RCF characteristics and design, optical mode multiplexer / demultiplexer technologies, RCF-based optical amplifiers. Finally, various demonstrations of data transmission over RCF-based MDM systems will be reviewed, with a discussion on future outlook.

BiographySiyuan Yu received his Bachelor’s degree (Wireless Communications Technology) from Tsinghua University, Beijing, China in 1984; Master’s degree (Optical Communications) from Wuhan Research Institute of Post and Telecommunications, Wuhan, China, in 1987; and PhD degree (Photonics) from the University of Glasgow, Scotland, UK, in 1997.

Prof Yu is internationally renowned for his research in photonic devices, photonic integrated circuits, as well as their applications in optical communication systems. He has helped in pioneering areas such as high-speed integrated optical switches, micro-cavity lasers, all-optical signal processing devices, integrated quantum photonics, and more recently focusing on photonic devices and mode division multiplexing systems based on orbital angular momentum modes (OAM) of light in ring core optical fibres. He has published more than 200 papers including two cover features on SCIENCE, co-edited a book, and has been granted several international patents.

Research on Optical Devices based on Special Optical Fibers

Li PeiBeijing Jiaotong University, China

With the development of optical fiber communications and networks, the demand for high-performance and low-price optical devices for special application is increasing. In this paper, multi-parameter sensor and polarization related devices have been researched. To specific, SPR sensor based on special fiber can be used in single-parameter or multi-parameter sensing. Polarization related devices, including polarization filter, polarization convert and polarization beam splitter, are constructed by various kinds of special fibers. Besides, some works based on multiple-core fiber have been done. More in-depth research on above devices based on special fibers will have important significance for the development of optical fiber communications and networks.

BiographyLi Pei, Professor of Beijing Jiaotong University, her current research interests include high speed optical telecommunication network, optical fiber sensor, ROF, key technology of optical fiber communication and so on. She has been a leader of more than 10 projects in China, include National Natural Science Funds for Distinguished Young Scholar, Hi-Tech research and Development Program of China, New Century Excellent Talents Project of Ministry of Education, and so on. She has authored/co-authored more than 200 journal and conference papers, and more than 100 patents and software copyrights in her research field.



Session 5


Average-free Coherent BOTDA

Liang WangThe Chinese University of Hong Kong, Hong Kong, China

We have demonstrated a coherent BOTDA using phase- and polarization-diversity heterodyne detection and quasi-online DSP, with enhanced SNR and tolerance to the polarization-induced noise. The independent laser as LO simplifies the power and wavelength control for the removal of unwanted probe sideband and Rayleigh scattered noise by electrical filtering instead of unstable optical filtering. By replacing the independent LO by a LO generated from the same laser source and exciting Brillouin responses by two sequential orthogonal pump pulses, we have further realized enhanced coherent BOTDA system without any trace averaging. The scheme provides a potential configuration for future high-speed coherent BOTDA with real-time flexible DSP designed to meet different requirements.

BiographyLiang Wang is currently an Assistant Professor (Research) at the Department of Electronic Engineering, The Chinese University of Hong Kong (CUHK). He received B.S. degree from Huazhong University of Science and Technology, Wuhan, China, in 2008, and Ph.D. degree from CUHK in 2013. From September 2013 to January 2014, he worked as a Research Scientist (core staff) at the Institute for Infocomm Research, A∗STAR, Singapore. In February 2014, he joined the Photonics Research Center, The Hong Kong Polytechnic University as a Postdoctoral Fellow. In September 2016, he joined CUHK as a faculty member. He has published more than 80 research papers in major peer-reviewed journals and international conferences. His research interests include distributed fiber sensors, optical signal processing, novel fiber devices and photonic devices, etc.

Interoperation of 400GBASE-LR8 Physical Interfaces using CFP8 Pluggable Modules

Yang YueJuniper Networks, USA

In this talk, we first review the current status for 400GBASE client-side optics standard and multi-source agreement (MSA). We then compare different form factors for 400GE modules, like CFP8, QSFP-DD and OSFP. The essential techniques to implement 400GE, like pulse amplitude modulation (PAM4), forward error correction (FEC) and continuous time-domain linear equalizer (CTLE), are discussed. A 400GE physical interface card (PIC) in Juniper’s PTX5000 platform has been developed, conforming to latest IEEE802.3bs standard. To validate the PIC’s performance, a commercial optical network tester (ONT) and the PIC are optically interconnected through two CFP8-LR8 modules from different suppliers. The CFP8-LR8 module utilizes 8 optical wavelengths through coarse wavelength division multiplexing (CWDM). Each wavelength carries 50Gb/s PAM4 signal. The signal transmits through 10km single mode fiber (SMF). The ONT generates framed 400GE signal and sends it to PIC through the first CFP8 module. The PIC recovers the signal, performs an internal loopback, and sends 400GE signal back to the ONT through the second CFP8 module. The optical spectrum, eye diagram, receiver sensitivity, long time soaking results, and internal digital diagnosis monitoring (DDM) result are fully characterized. The pre-FEC bit error rate (BER) is well below the KR4 FEC threshold of 2.4e-4. After KR4 FEC, error-free performance over 10km SMF is achieved. In this way, we demonstrate both the inter-operation between the PIC and the ONT, as well as the inter-operation between CFP8 modules of different suppliers. This demonstration represents the successful implementation of 400GE interface in the core IP/MPLS router.

BiographyYang Yue is a Hardware Engineer at Juniper Networks in USA. He received the B.S. degree in Electrical Engineering and the M.S. degree in Optics from Nankai University, China, in 2004 and 2007, respectively. He received the Ph.D. degree in Electrical Engineering from University of Southern California, USA, in 2012. Dr. Yue’s current research interests include Integrated Photonics, Free-space and Fiber Optics, Optical Interconnect, Optical Communications and Networking. His research on “orbital-angular-momentum mode division multiplexing in fiber” has been published by Science. He has published over 120 peer-reviewed journal papers and conference proceedings, 6 invited papers, 1 book chapter, >20 issued or pending patents. Furthermore, he has given >50 invited presentations. He is the Editor Board Member for two scientific journals. He also served as committee member for ~30 international conferences, reviewer for ~50 prestigious journals.


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Capacity and security of broadband access networks

Chongfu ZhangUniversity of Electronic Science and Technology of China, China

To copy with the network traffic evolution trend in a cost/capacity- effective, integration and security resulted from broadcast manner, the widely considered technical strategies are to employ optical comb, optical-wireless, digital signal processing (DSP) as well as physical layer chaos encryption.

Firstly, with the tremendous increase of terminal users, the traffic flow grows rapidly, 400 Gb/s PON will be needed. To meet the demand for traffic flow growth, a technical strategy with cost/capacity effective is an urgent need. The large-capacity BANet is limited by the nonlinear effect of fibers, devices and so on. Therefore, the DSP algorithm and the optical comb technology are used for overcoming those limitations.

Secondly, due to the present researches, one trend of BANet is the wired and wireless networks converge. The 5G services are characterized by unprecedented need for high rate, ubiquitous availability, ultralow latency, et al. The distributed structure has been proposed to meet the needs of the 5G. Namely the evolution of BANet to support the distributed structure in wireless communication as fronthaul network is a meaningful challenge, in which BANet should be compatible well with the wireless technologies such as beamforming, large-scale antenna configuration.

Finally, we focus on security problem and enhancement technique. According to the studies that have been reported, a brief overview of the security issues is provided. And then we have reported the physical layer security techniques for the BANet: 1) the constellation transformation based physical layer security techniques, including chaotic IQ encryption, chaotic constellation transformation, and Brownian motion symbol substituting; 2) the frame transformation based physical layer security techniques, including hybrid chaotic confusion and diffusion, frequency and time domain interleaving, as well as Brownian motion frame interleaving.

BiographyReceived the Ph.D. degree from the University of Electronic Science and Technology of China (UESTC), China, in 2009. From 2013 to 2014, he was a Visiting Scholar with OCLAB, University of Southern California. He is currently a Full Professor of Communication and Information System with UESTC. He was selected by the program for new century excellent talents in university by the Chinese Ministry of Education. He has authored or co-authored over 100 papers and has over 40 patents. His current research focuses on broadband access networks, optical wireless communications, and optical signal processing. He is a senior member of the IEEE and member of the OSA. Along with colleagues, he has received six awards of science and technology from nation, province or ministry.

Application of Optical Communication and Signal Processing Techniques in Distributed Optical Sensing Systems

Chao LuThe Hong Kong Polytechnic University, Hong Kong, China

Many transmission techniques have been developed to increase the capacity of optical communication systems. These include wavelength division multiplexing and spatial division multiplexing (few mode or multi-core fiber) for signal multiplexing and coherent detection for high order modulation and polarization multiplexing. Distributed optical fibre sensors based on linear (Rayleigh scattering) and nonlinear scattering (Raman, Brillouin scattering) have find many applications in different application areas and have attracted significant research interest in recent years. Optical communication and distributed sensing systems share many similarities. As a result, there is a strong incentive for us to explore the use of optical transmission and signal processing techniques in distributed sensing systems. In this talk, we will discuss a few examples of the use of optical transmission techniques in distributed sensing systems. These include coherent detection based on vector Brillouin optical time domain analyzer(BOTDA) system; Single-measurement digital optical frequency comb based phase-detection BOTDA system, multi-core fibre based combined phase-OTDR and Raman DTS system and vibration sensing system. In addition, the use of machine learning technique such as artificial neural network(ANN) and principal component analysis(ANN) for improving measurement accuracy and measurement speed of distributed sensing systems will be discussed.


Session 5


BiographyLU Chao received BEng degree in Electronic Engineering from Tsinghua University, China in 1985, and Ph.D. degree from University of Manchester, UK in 1990. He joined the School of Electrical and Electronic Engineering, Nanyang Technological University(NTU), Singapore in 1991 and has been there as a Lecturer, Senior Lecturer and Associate Professor until 2006. From June 2002 to December 2005, he was seconded to the Institute for Infocomm Research, Agency for Science, Technology and Research (A*STAR), Singapore, as Program Director and Department Manager leading a research group in the area of optical communication and fiber devices. Since 2006, he has been with the Department of Electronic and Information Engineering, The Hong Kong Polytechnic University. He has published more than 200 journal papers. His research interests cover mainly high capacity long haul and short reach optical communication systems and optical fiber sensing systems. He is a fellow of OSA.

Fiber optics frequency comb enabled linear optical sampling with operation wavelength range extension

Songnian FuHuazhong University of Science and Technology, China

Although linear optical sampling (LOS) technique is powerful enough to characterize various advanced modulation formats with high symbol rates, the central wavelength of pulsed local oscillator (LO) needs to be carefully set according to that of the signal under test, due to the coherent mixing operation. Here, we experimentally demonstrate wideband LOS enabled by fiber optics frequency comb (FOFC). Meanwhile, when the broadband FOFC acts as the pulsed LO, we propose a scheme to mitigate the enhanced sampling error arising in the non-ideal response of balanced photo-detector. Finally, precise characterizations of arbitrary 128 Gbps PDM-QPSK wavelength channel from 1550 nm to 1570 nm are successfully achieved, when a 101.3 MHz frequency spaced comb with 3-dB spectral power ripple of 20 nm is used.

BiographySongnian Fu received the B.Sc. and M.Sc. Degree from Xiamen University, Xiamen, China, in 1998 and 2001, respectively. He received the Ph.D. degree from Beijing Jiaotong University, Beijing, China, in 2005. From 2005 to 2011, he was with Network Technology Research Center (NTRC), Nanyang Technological University, Singapore, as Research Fellow. Since Feb, 2011, he has been a Professor in the School of Optical and Electronic Information, and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China. His current research interests include fiber optical transmission and fiber wireless convergence.

Software defined silicon photonic chip for optical signal processing

Linjie ZhouShanghai Jiao Tong University, China

We present our recent work on versatile optical signal processing using reconfigurable integrated silicon photonic devices and chips. The functionality of a chip can be altered by redefining the optical routes in the photonic circuits, greatly expanding its applications as a universal optical processor. Various factors that affect the processing capability such as elementary components, optical connection topology, active tuning implementation method will be discussed. Typical functions like filtering, switching, delay and optical beam steering have been experimentally demonstrated.

BiographyLinjie Zhou is a full professor of School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University. He received his B.S. degree in microelectronics from Peking University in 2003. He received his Ph.D. degree in electronic and computer engineering from the Hong Kong University of Science and Technology in 2007. From 2007 to 2009, he worked as a postdoctoral researcher at University of California, Davis. In 2010, he joined the State Key Lab of Advanced Optical Communication Systems and Networks of Shanghai Jiao Tong University. His research interests include silicon photonics, plasmonic devices and optical integration. He has published near 200 peer-reviewed international journal and conference papers and has given more than 40 invited talks in international conferences. He has organized many sessions in multiple international and domestic conferences. He was elected as the “Yangtse River Young Scholar” by the Minister of Education of China in 2016. He was granted the “Newton Advanced Fellowship” in 2016 and “National Science Fund for Excellent Young Scholars” in 2014, and entered the “Shanghai Rising-Star Program” in 2014. He also got the SMC Excellent Young Faculty Award of Shanghai Jiao Tong University in 2014 and 2010.


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Optical Signal transmission with High Baud Rate and High Order QAM

Jianjun YuZTE TX Inc., USA

The explosive growth of Internet Protocol (IP) traffic has caused increasing demand for high-speed data connections based on wavelength-division multiplexing (WDM) fiber-transmission systems with ultra-high channel bit rates (from 400Gb/s to 1Tb/s and beyond). Increasing the symbol rate and using high order QAM of single-channel has been shown to be an effective method to improve the data rate per channel. In this paper, we review recent reports on the high-baud rate and high-order QAM signal generation and detection, and the corresponding advanced algorithms used in the transmitter- and receiver-side for signal pre- and post- equalization and compensation, respectively. Transmitter-side optical pre-equalization (Pre-EQ), probabilistical shaping, receiver-side partially-response (PR) MLSE, and Look-up-table pre-distortion are also reported here to be an effective method for performance improvement.

BiographyJianjun Yu is the department head of wireline technologies and Vice president at ZTE TX Inc. Prior to that Dr. Yu was a senior technical staff member and project leader at the NEC Laboratory America. He has also worked on the technical staff at Bell labs, Lucent Technologies and Agere Systems, and has served on the research faculty at the Georgia Institute of Technology and Denmark Technical University. He holds a PhD and a MD in telecommunications from the Beijing University of Posts and Telecommunications. Jianjun is an Optical Society of America (OSA) Fellow and a senior Member of IEEE, IEEE Photonics Society, and serves as Associate Editor of IEEE Photonics Journal, IEEE/OSA Journal of Lightwave Technology, OSA/IEEE Journal of Optical Communication and Networking, and OSA Journal of Optical Communication. He served asthe Editor-in-Chief for Recent Patents on Engineering from 2008 to 2016. He has authored/co-authored 600 peer-reviewed technical journal and international conference papers as well as 60 US patents.

Graphene for on-chip communication devices

Baohua JiaSwinburne University of Technology, Australia

Graphene oxide (GO) has a giant Kerr nonlinear response with strong potential for high-performance nonlinear devices. At the same time, GO has much lower loss and better ability for large-scale conformal coating of Si nanostructures when compared with graphene, which could enhance the conversion efficiency. Here, we present GO conformal coating on integrated photonic chip. We show theoretically and experimentally that the Kerr nonlinear properties of the hybrid photonic chip has been significantly enhanced by introducing a think GO layer.

BiographyDr. Baohua Jia (PhD in 2007) is a full Professor and Research Leader at Swinburne University of Technology, Australia. She uses light to develop various functional nanostructures to effectively harness and store clean energy and boost the performance of communication devices. She is the Program Leader of Future Manufacturing Institution and the Head of Laser and Nanomaterial Interaction (LNI) Group. She has co-authored more than 200 scientific publications and delivered more than 40 invited talks at prestigious international conferences and serves multiples professional committees. She has produced several international patents, which have been licensed and commercialized by a number of international companies. Her recent awards include the Research Impact Award (2017), Young Tall Poppy Science Award (2013), L’Oréal Australia and New Zealand for Women in Science Fellowship (2012), Discovery Early Career Researcher Award (DECRA) (2012), Victoria Fellowship (2010) and Australian Postdoctoral Fellowship (2009) et. al.


Session 5


Generation of Orbital Angular Momentum Light in Optical Fibers

Hao ZhangNankai University, China

As one of the most fundamental physical quantities in classical and quantum electrodynamics, orbital angular momentum (OAM) of light has attracted considerable research interests in so many dynamically growing areas such as optical tweezers, micromanipulation, nanoscale microscopy, quantum information, and particularly large-capacity optical communications. Besides various physical properties of a lightwave, including amplitude, phase, wavelength and polarization that have been intensively investigated in the past few decades, OAM adds a new dimensionality for data enconding and channel addressing to meet the increasing demand for higher data transmission capacity.

In this talk, we would briefly introduce the fundamentals of OAMs followed by a general review on the typical OAM generation methods based on spatial optical components, metasurface plate, Q-plate, and optical fibers. Compared to traditional OAM generation methods, fiber-optic schemes would be particularly favorable for their intrinsic advantages such as compact size, low cost and ease of operation. We would introduce our theoretical studies on two kinds of microstructured optical fibers (MOFs) designed for OAM generation. In the first type of MOFs, by infiltrating the four symmetrically located air holes and the hollow core with refractive index matching liquids (RIMLs), different high-order OAMs could be generated at different operation wavelengths. And for the second type of MOFs, RIMLs are infiltrated into a side-hole ring fiber to generate 10 linearly polarized OAM states. We would then introduce our experimental study on generation of circularly polarized OAM beams using few-mode-fiber-based long-period gratings. Finally, we would address some research prospects of OAM technology.

BiographyHao Zhang received the Ph.D. degree in Optics from Nankai University, China, in 2005. He is currently a professor at the Institute of Modern Optics, Nankai University. His current research interests are concerned with microstructured optical fiber devices, microresonator fiber devices, and novel fiber sensors. He has published more than 100 peer-reviewed journal articles and contributed to over 30 related conferences on these topics.

The alarm preprocessing and alarm correlation analysis based on Machine Learning

Min ZhangBeijing University of Posts and Telecommunications, China

A huge number of alarms may be generated from the optical layer equipments in the optical transport network (OTN), which bring difficulties for the operator in routine maintenance and fault location. Therefore, alarm pre-processing and their correlation analysis are important.

The entire scheme mainly consists of two parts: the alarm preprocessing and the alarm correlation analysis. The alarm transaction extraction and alarm weight setting constitute the alarm preprocessing part. The methods of the alarm preprocessing include the alarm transaction extraction based on sliding time window and AHP(analytic hierarchy process) which is applied to deciding the weight,after preprocessing the alarm data, alarm compression can be implemented, and the alarm database can be transformed into alarm transaction database which is suitable for distributed weighted association rules mining. For the alarm correlation analysis part, Algorithm DWAP assigns the weighted of an alarm transaction according to cumulation weighted method and ratio weighted method,which could reflect the importance of the alarm transaction perfectly and make the result with a high dipartite degree.The performance test of the algorithm DWAP indicates that it has time efficiency,low communication cost and strong retractility.

BiographyMin Zhang received his Ph.D. degree in optical communications from Beijing University of Posts and Telecommunications (BUPT), China. He is now a professor of BUPT, the Assistant Director of the Sate Key Laboratory of Information Photonics and Optical Communications, Deputy Dean of School of Optoelectronic Information, BUPT. His main research interests include advanced optical communication systems and networks, especially high-speed switching, optical signal processing and optical wireless communications. Prof. Zhang holds 36 China patents. He has authored or co-authored over 300 technical papers in international journals and conferences, and 12 books in the areas of optical communications.


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Recent advances of high-speed optical network safety protection

Qingsong LuoCETC34, China

The bandwidth explosion has led to a corresponding growth in the transmission of sensitive information, such as financial, medical and legal records, as well as homeland security and first responder communications. With the development of photoelectron technology and the emergence of new technology，the possibility of optical information in optical cable suffering from sensorless wiretapping, stealth attacks and malicious attacks are increasing. So high security is a critical issue in optical communication since it is a major requirement of today’s large-capacity global network. The protection of optical network information security needs to be gradually improved through innovative technological breakthroughs. It is particularly necessary to apply new concepts, new theories, new technologies, and new methods. This report introduces the different approaches which can enhance the security of the optical network in optical domain and analyzes the developing trend of the safety protection technology for high-speed optical communication networks. The research results will have an important impact on the future development of optical networks.

BiographyQingsong Luo is a professor level senior engineer, a chief scientist for China Electronic Technology Group Corporation (CETC) and an assistant chief engineer for the 34th Research Institute of CETC. He is also an expert with State Department special allowance. His research interests are optical communications and networks, and he has 30 years of optical communication technology hands-on background and 15 years of optical network security technology research experience.


Session 5


CIOP2018-2018-000082Effect of Temperature on Conversion Characteristics of Segmented PPLN based Wavelength ConverterTao Liu, Yanxu Lei, Jingzhi Zhang,Cong Zhu, Chunyang Sun | North China Electric Power University, ChinaWe investigate the influence of temperature changes on the grating periods of periodically poled lithium niobate with segmented grating structure, as well as the effect on the conversion characteristics of segmented gratings based wavelength converter.

CIOP2018-2018-000106Slow Light via Stimulated Brillouin Scattering in few-mode fibersLijun Li, Shanglin Hou, Jingli Lei, Daobin Wang, Xiaoxiao Li, Dongye Wang, Huiqin Wang, Minghua Cao | Lanzhou University of Technology, ChinaThe characteristics of tunable slow-light are investigated by full vectorial finite element method in few-mode fiber. The Brillouin gain spectrum of intramodal SBS and intermodal SBS for different pump-stokes pairs are analyzed.

CIOP2018-2018-000144Chaotic Laser and its ApplicationsAnbang Wang, Daming Wang, Yuncai Wang | Taiyuan University of Technology, ChinaChaotic light has attracted widespread attention because of its important applications. We present several methods to generate chaotic light without time delay signature, and its applications in random number generation and anti-jamming chaos radar.

CIOP2018-2018-000386Joint compensation of IQ imbalance and phase nosie based on extended kalman filterLinsheng Fan, Qian Xiang, Yanfu Yang*, Qun Zhang, Juntao Cao and Yong Yao | Shenzhen Graduate School, Harbin Institute of Technology, ChinaA joint compensation scheme for IQ imbalance and phase noise based on extended Kalman filter is proposed. Not only can our scheme cancel the phase noise, but also shows quick convergence speed, high IQ imbalance tolerance.

CIOP2018-2018-000190Mid-infrared parametric amplification in chalcogenide microstructured fibersNan Cao1, Hongna Zhu1, Peipei Li1, Stefano Taccheo2, Ali Albalawi2, Yuanna Zhu3, Xiaorong Gao1, Zeyong Wang1 | 1 Southwest Jiaotong University, China; 2 Swansea University, UK; 3 Shandong Better Motor Co, Ltd, ChinaA two-pump fiber optical parametric amplifier (FOPA) based on the photonic crystal fiber (PCF) with background in the mid-infrared (MIR) region is investigated numerically.

CIOP2018-2018-000199Blind phase noise compensation based on circular quadrature amplitude modulationPing Zhang1, Hongliang Ren1,2, Yali Qin1, Weisheng Hu2 | 1 Zhejiang University of Technology, China; 2 Shanghai Jiao Tong University, ChinaA two-stage blind phase noise compensation algorithm is proposed based on the circular multilevel quadrature amplitude modulation (C-mQAM). A cost function is structured for rough compensation, and extended kalman filter(EKF) is adopted for final compensation.

Oral Talks


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CIOP2018-2018-000247Design, Fabrication and measurement of a novel ultra-low loss graded-index FMFLei Shen, Jun Wu, Yaping Liu, Su Chen, Rui Zhang, Hongyan Zhou, Lei Zhang, Jie Luo | Yangtze Optical Fiber and Cable Joint Stock Limited Company, State key Laboratory of Optical Fiber and Cable Manufacture Technology, ChinaWe report the design and the fabrication of a low-DMGD and ultra-low loss 6-LP-mode fiber adapted to strongly coupled mode-division-multiplexed systems that allows to multiply the capacity.

CIOP2018-2018-000307Optical frequency transfer over 400km urban fiber network with a fractional frequency instability of 10-19 levelJie Liu1,3, Xue Deng1,2,3, Qi Zang1,3, Xiang Zhang1,3, Dan Wang1,3, Dongdong Jiao1,2,3, Tao Liu1,3 | 1 National Time Service Centre, Chinese Academy of Science, China; 2 University of Chinese Academy of Science, China; 3 Key Laboratory of Time and Frequency Standards, Chinese Academy of Science, ChinaAs a prospective test of the countrywide high-precision time and frequency transfer optical fiber network, we recently demonstrated an optical frequency transfer link over an urban commercial fiber network in Shaanxi Province. A fractional frequency instability 8.4×10-19 at 10000 s is achieved over the 406-km round-trip fiber from Lintong District to Ningshan County. Further study on optical frequency transfer over 1000 km is carrying on and will contribute to the construction of the countrywide high-precision time and frequency transfer optical fiber network.

CIOP2018-2018-000193An Efficient Sampling Scheme Base on Length Estimation for Optical Camera CommunicationYudong Zhou, Jing He, Rui Deng, Jin Shi, Zhihua Zhou, Jie Ma, Yaoqiang Xiao | Hunan University, ChinaAn efficient sampling scheme based on length estimation is proposed and experimentally demonstrated in optical camera communication (OCC) system. Experiment result show that a data capacity of 672 bits/frame, with bit error rate under 3.8x10-3, can be achieved.

CIOP2018-2018-000339Polarization changes of beams travelling through anisotropic turbulence for optics transmissionZiyang Li, Yufei Luo, Anhong Dang ｜ Peking University, ChinaWe investigate the polarization changes of beams travelling through anisotropic turbulence when the source is isotropic or anisotropic in correlation. Simulation results show strong relevance between the state of polarization and the source correlation.

CIOP2018-2018-000374Enhanced performance of high-speed IM/DD DMT systems using an EM channel estimation algorithm for short reach optical communicationMengyuan Li, Muguang Wang, Qi Ding ｜ Beijing Jiaotong University, ChinaWe propose an EM channel estimation algorithm for short reach optical DMT system. It is shown to outperform both LMS algorithm and semi-blind channel estimation algorithm relying on training sequences in high-speed IM/DD DMT system.

Session 6 Optical Imaging and Holography

Session 6


Invited Talks

Overlapped fingerprint image capture and separation using digital holography and machine learning

Byoungho LeeSeoul National University, Korea

Even now that DNA test has become common, latent fingerprints are still a useful evidence for finding criminals. However, the latent fingerprints are often damaged and overlapped with each other. In this paper, a non-destructive method to capture and separate overlapped fingerprints using digital holography and machine learning is presented anddemonstrated.

BiographyByoungho Lee received his Ph.D. degree from the Department of Electrical Engineering and Computer Science, University of California, Berkeley, CA, USA, in 1993. He has been in the faculty of the School of Electrical and Computer Engineering, Seoul National University since September 1994, where he is now serving as the department head. Prof. Lee is a Fellow of OSA, SPIE, IEEE, and is a Member of the Korean Academy of Science and Technology and a Senior Member of the National Academy of Engineering of Korea. He served as a Director-at-Large of OSA, chair of the Member and Education Services Council of OSA, and chair of a Technical Group and a Technical Division of OSA. Currently he is on the editorial board of Advances in optics and Photonics and Light: Science and Applications, and is the editor-in-chief of the Journal of Information Display. He has served on the editorial board of Optics Letters, Applied Optics and Japanese Journal of Applied Physics as well as the editor-in-chief of the Journal of the Optical Society of Korea. He has received several distinguished awards such as the Scientist of the Month Award of Korea (2009), the Academic Award of the Optical Society of Korea (2006), the Academic Award of Seoul National University (2013) and National Science Medal of Jinbojang (2016). Currently, he is the President-Elect of the Optical Society of Korea.

Holographic Printer for Exact Color 3-D Object Representation

Hoonjong KangKorea Electronics Technology Institute, Korea

The paper presents design and implementation of a color wave-front holographic printer which prints white light viewable holograms of three-dimensional(3D) objects from digital contents. Similarly to other holographic printers, the printed hologram is composed as a two-dimensional array of elemental volume holograms. In the proposed wave-front printer, the 3D information was encoded in computer generated holograms displayed in succession on an amplitude spatial light modulator. The light beam diffracted from the modulator was filtered to extract the beam coming from the object and demagnified to be recorded on to the holographic emulsion as a small size elemental hologram that made possible application of mosaic delivery of exposures at primary colors. As a result, each elemental hologram corresponded to a single color channel. A modified phase-added stereogram approach based on a hologram partitioning method was proposed to accelerate computer generation of digital contents. We achieved bright 3D reconstruction with a motion parallax at saturated colors from hologram softest objects that were printed on a silver-halide emulsion. Thus we proved experimentally feasibility of recording analog color volume holograms from digital contents by applying spatially separated exposures at primary colors to the elemental holograms.

Biography Hoonjong Kang received the B.Eng. and M.Eng. degrees in electrical engineering from Kwangwoon University, Seoul, Republic of Korea, in 1998, and 2001, respectively, and the Ph.D. degree in engineering from Nihon University, Tokyo, Japan, in 2008. He joined the 3D Korea company in 2000, and joined the government institute ETRI (Electronics and Telecommunications Research Institute) in 2002. He joined the European FP7 Real3D (Digital holography for 3D and 4D real-world objects’ capture, processing, and display) project in 2008, and joined the government institute KETI (Korea Electronics Technology Institute) in 2010. His research interests include digital holography, electro-holography, 3D display, and signal processing of digital holography and stereoscopic imaging.



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Design methods for generating computer hologram based on image quality enhancement

Juan LiuBeijing Institute of Technology, China

In order to suppress the speckle noise on holographic display, we present two methods for introducing initial phase to desired objects when generating computer hologram. We considerate the relationship of gray value among the adjacent pixels when introducing initial phase. In order to verify the effect of proposed methods, we perform simulation and corresponding experiments. We compare those two methods and conclude that one of the methods is better than the other in terms of the quality of reconstructed image. We believe those methods can greatly enhance the quality of reconstructed images and they will be widely applied in the holographic field in the future.

BiographyJuan Liu has received her MS in optics from Shanghai University, Shanghai, China, in 1998, and her PhD degree in diffractive optics from the Institute of Physics, Chinese Academy of Sciences, Beijing, China, in 2001. She was a visiting scientist at Institute of Medical Physics in University of Vienna, Austria, from 2001 to 2003; at University of Arizona from August to October 2014; at University of California at Berkeley from October 2014 to August 2015. From 2005 to 2008, she was an associate professor in Beijing Jiaotong University, Beijing, China. From 2008 until present, she is a professor in Key Laboratory of Photo Electronic Imaging Technology and System, Ministry of Education of China, School of Optics and Electronics, Beijing Institute of Technology, Beijing, China. Her major research interests include: Diffractive Optical Elements, 3D holographic display, the design and the fabrication of micro-optical elements, surface plasmon polartons, and rigorous analysis of microlens by various methods.

Ultra-High-Speed Fizeau Interferometry and Digital Holography

Toyohiko YatagaiUtsunomiya University, Japan

A Fizeau interferometer with instantaneous phase-shifting ability using a Wollaston prism is designed. To measure dynamic phase change of objects, a high-speed video camera of 10-5 sec of shutter speed is used with a pixelated phase-mask of 1024x1024 elements. The light source used is a laser of wavelength 532 nm which is split into orthogonal polarization states by passing through a Wollaston prism. By adjusting the tilt of the reference surface it is possible to make the reference and object beam with orthogonal polarizations states to coincide and interfere. Then the pixelated phase-mask camera calculate the phase changes and hence the optical path length difference. Vibration of speakers and turbulence of air flow were successfully measured in 7,000 frames/sec. A digital holography system based on the instantaneous phase-shifting method proposed is also discussed.

BiographyEducation:

University of Tokyo BE Applied Physics 1969University of Tokyo PhD Engineering 1980

Employment: Institute of Physical and Chemical Research Researcher 1970-1983University of Tsukuba 1983-2007

Utsunomiya University Professor Director of CORE 2007-date University of Tsukuba Prof. Emeritus 2007-dateAwards:

Optical Research Award Japan Society of Applied Physics 1983 Fellow SPIE, OSA, JSPS Tochigi Culture Award Tochigi Prefecture 2015 SPIE Denis Gabor Award 2015 JSPS Optical Technology Award 2017Appointment: President of Optical Society of Japan 2009-2010 SPIE President 2015 SPIE Past President 2016-dateResearch activity:

Optical Information Processing, Optical Metrology, Biomedical Imaging, 3D Display and Imaging, Optical Data StoragePublication: 12 Books, 300 peer reviewed papers


Session 6


LCOS Based Holographic Wavelength Selective Switching Platform

Haining Yang, Daping ChuUniversity of Cambridge, U.K. and ROADMap Systems Ltd., U.K.

In the past three decades, global data traffic has been growing at an astonishing rate with little sign to slow down. In responding to this need, we witnessed a large-scale deployment of all-optical telecommunication networks based on wavelength division multiplexing (WDM). One of the key enabling technology for all-optical WDM networks is the wavelength selective switch (WSS), which is able to independently route individual WDM channels of any formats entering its input fibre port to any of the output fibre ports according to the software configuration by the service providers. Liquid crystal on silicon (LCOS) technology is currently the most flexible optical engine for WSSs.

We will review the advantages of LCOS WSSs and the use of holographic wavefront modulation for advanced switching functionalities and delivery of the key performance matrix. We will then introduce a new stacked WSS architecture based on 2D beam steering, where multiple independent WSSs can be integrated on a single LCOS device with common optics. This approach can significantly reduce the cost, footprint and power consumption and allow the WSSs to be reconfigured as ultra-high port count switches or non-blocking wavelength cross-connects (WXCs). Finally, we will address how this stacked WSS architecture can be utilized to meet the optical switching demand in large-scale data centres.

BiographyProf. Daping Chu received his PhD degree in Physics from University of Warwick. He is the Director of Centre for Photonics Devices and Sensors and Director of CAPE in University of Cambridge and the Founder and CTO of ROADMap Systems Ltd.

Review on objective image quality evaluation of computer-generated holograms

Hiroshi YoshikawaNihon University, Japan

Computer-generated hologram (CGH) is widely used for displays. Its image quality is usually evaluated subjectively, or compared with the other holograms. For example, the quality of the information reduced hologram is evaluated subjectively by the double-stimulus impairment scale method to compare with the original image. For objective image quality evaluation, it has been investigated both the brightness and peak signal-to-noise ratio (PSNR) or structural similarity index (SSIM) of the reconstructed image with various calculation methods and parameters on both the amplitude and phase modulation of the Fourier transform transmission hologram. In 2D image quality evaluation, it is known that PSNR does not always reflect visual perception, because the human visual perception is highly adopted for extracting structural information. Therefore, SSIM is proposed and found that it gives better evaluation result than PSNR. To evaluate CGH, SSIM and subjective quality evaluation are compared and it is found that SSIM can be replaced to subjective evaluation. To enhance the brightness of the reconstructed image from CGH, the non-linear conversion to increase the average fringe contrast is often used. From the quality evaluations, it is found that the brightness of the hologram can be increased with the sacrifice of SSIM.

BiographyHiroshi Yoshikawa received the B.S. degree, the M.S. degree and the Ph.D. from Nihon University, all in electrical engineering, in 1981, 1983 and 1985, respectively. He joined the faculty at Nihon University in 1985 where he currently holds the position of Professor of Electronics and Computer Science. From Dec. 1988 to Apr. 1990, he was a research affiliate of MIT Media Laboratory. His current research interests are in computer generated holograms, holographic printers, electro-holography, display holography and computer graphics.


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On the use of machine learning algorithms in computational imaging

George BarbastathisMassachusetts Institute of Technology, USA

A computational imaging system consists of physical components and algorithmic components. The physical components manipulate photons so as to produce an intermediate representation of the object, which we call the ``raw image.’’ The raw image is transduced to an electronic signal by a digital camera and, because of that, necessarily represents the intensity of a coherent or partially coherent optical field. The algorithmic components then process the raw image to produce a final representation, which we call the ``image.’’ In this talk, I will discuss how the algorithmic component of a computational imaging system may be “learnt” from examples—assuming such examples are available. I will place emphasis on quantitative phase retrieval as application, and the use of deep neural network algorithms for that purpose.

BiographyGeorge Barbastathis received the Diploma in Electrical and Computer Engineering from the National Technical University of Athens (Πολυτεχνείον) in 1993 and the MSc and PhD in Electrical Engineering from Caltech in 1994 and 1997, respectively. After post-doctoral work at the University of Illinois at Urbana-Champaign, in 1999 he joined the faculty at the Massachusetts Institute of Technology (MIT), where he is now Professor of Mechanical Engineering. Since 2007 he has been a Principal Investigator with the Singapore-MIT Alliance for Research and Technology (SMART) Centre. He has held sabbatical appointments at Harvard University and Shanghai Jiao Tong University-University of Michigan Joint Institute. His research interests are holography, inverse problems, and engineered optical materials. In 2011, he was elected Fellow of the Optical Society of America.

Dammann grating and its applications

Changhe ZhouShanghai Institute of Optics & Fine Mechanics, CAS, China

Dammann grating is a binary phase element which can produce equal-intensity spots in the far field. Dammann grating can be fabricated easily with advanced lithographic technique. Dammann grating has been developed into new kinds of splitting elements, such as circular Dammann grating, Dammann zone plate, three-dimensional Dammann grating, distorted Dammann grating, etc.. Vector Dammann grating has been analyzed using the simplified modal method. A complete new set of Dammann gratings has invented, such as polarization selective beam splitting, polarization independent beam splitting, etc.. Dammann grating can be used for three-dimensional measurement and for direct laser writing, etc.. We believe that Dammann grating should be highly interesting for a variety of applications.

BiographyChanghe Zhou is a professor of Shanghai Institute of Optics and Fine Mechanics.

Liquid Crystal Photoalignment Technology for Photonic Applications

Yan-qing LuNanjing University，China

In recent years, complex optical fields with spatially inhomogeneous phases, polarizations and optical singularities have drawn many research interests. Many novel optical phenomena have been predicted and demonstrated in both linear and nonlinear optics regimes. Although local optical phase could be controlled directly or through hologram structures in isotropic materials such as glasses, optical anisotropy is still required for manipulating polarization states and wavelengths. The anisotropy could be either intrinsic such as in crystals/liquid crystals (LCs) or the induced birefringence from dielectric or metallic structures. In this talk, we will briefly review some of our attempts in tailoring complex optical fields via liquid crystal photoalignment technology. We developed a micro-photo-patterning system that could generate complex micro-images then further guides the arbitrary local LC directors. Due to the electro-optically (EO) tunable anisotropy of LC, various reconfigurable complex optical fields such as optical vortices (OVs), multiplexed OVs, OV array, Airy beams and vector beams are obtained. Different LC modes such as homogeneous alignment nematic, hybrid


Session 6


alignment nematic and even blue phase LCs are adopted to optimize the static and dynamic beam characteristics depending on application circumstances. We are also trying to extend our approaches to new wavelength bands, such as mid-infrared and even THz ranges. Some preliminary results are obtained.

BiographyYan-qing Lu received both his BS and Ph.D. degrees from Nanjing University, China, in 1991 and 1996 respectively. He has five-year experiences in US and China telecomm industries. He designed and developed a serial of liquid crystal based fiber-optic devices with his colleagues, which include variable optical attenuators, variable Mux/Demux, DWDM wavelength blocker etc. He is currently a Changjiang distinguished professor at Nanjing University, Fellow of OSA and Fellow of COS. His research interests include liquid crystal photonics, fiber optics and nonlinear optics. He is the author or co-author of ~200 peer-reviewed papers in Science, Adv. Mater., Optica, Phys. Rev., Appl. Phys. Lett., Opt. Lett. etc. with over 3500 citations (WOS). He also holds more than 50 domestic or international patents or pending patents.

Princess Leia vs. the Holodeck

Daniel SmalleyBrigham Young University, USA

Emergent 3D technologies are not homogeneous in their ability to present 3d cues. Holographic displays have ability to provide exquisite realism but at such high computational cost that often tradeoffs are required that compromise 3d cues and realism. Volumetric displays display ‘perfect’ accommodative cues (not limited by any aperture) and relatively low computational complexity for sparse scenes but have, lacked, with some notable exceptions, important 3D cues like occlusion and the ability to create virtual images. The interplay between depth cues and advanced 3D displays begs the creation of appropriate discriminants and taxonomies. Given rising general interest in advanced displays and persistent common misconceptions, it is also appropriate to lay out the practical limitations and strengths of holographic and volumetric display systems. This talk will present these affordances and limitations in the context of the author’s own work on holographic leaky-mode spatial light modulators and photophoretic trap volumetric displays.

BiographyLate one stormy night (Friday the 13th it was!) a shrill cry pierced the darkness and Daniel Smalley was born. Young Daniel was a farmhand by day and an intrepid experimenter by night. He once used an old metal bucket, some sand and a computer fan to construct an aluminum furnace for melting pop-cans and old screen doors into machine tool parts. He also built a number of circuits, a methane digester, a wind-powered electrolysis machine, a laser and a number of fine origami creations of various shapes and sizes. He experimented a great deal with holography, and for this reason was led to attend MIT where he earned a B.S., M.Eng, M.S., and Ph.D. degrees while working to create the world’s first low-cost holographic video monitor. Now as a newly minted BYU professor, he is continuing his work in electroholography by fabricating new waveguide-based modulators. Professor Smalley aspires to create large, high resolution, interactive holographic and volumetric displays. He is also part of collaborations pursuing novel brain probes and tractor beam technologies.

Dual image recording with orthogonal linear polarization holography

Xiaodi Tan Fujian Normal University, China

Polarization holography is a promising technique for its unique capacity of recording intensity, phase as well as polarization of light wave field simultaneously. In recent years, dual-channel images recording by polarization holography has been proposed. However, in conventional dual-channel images recording, an unchanged polarized reference wave is employed while signal waves have orthogonal polarization, which makes two holographic images can only be read out simultaneously. In this paper, we report polarization-controlled dual images recording within polarization holography written by orthogonal linear polarization waves. In this method, two polarization multiplexed holographic images could be sequentially readout by shifting the polarization state of reference wave based on null reconstruction effect (NRE) of linear polarization holography.


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NRE is an unique phenomena in polarization holography which means the diffraction efficiency goes down to zero when the hologram is reconstructed by orthogonal polarized reading wave. In this paper, we study polarization holography recorded by orthogonal linear waves and find that the NRE of orthogonal linear polarization holography can be achieved at large cross-angle of / 2π inside the polarization-sensitive media. The NRE of linear polarization holography is experimentally demonstrated by recording orthogonal linear polarization hologram in fabricated cubic material PQ/PMMA. Based on the NRE of orthogonal linear polarization holography, polarization-controlled dual images recording is carried out. Two images encoded by orthogonal linear polarization waves are sequentially recorded in same position of cubic PQ/PMMA by polarization holography. In reconstruction stage, the two holographic images are sequentially readout by shifting the polarization state of reference wave with negligible inter-channel crosstalk. The experimental results agree well with theoretical predictions. And this polarization-controlled dual images recording method has promising applications in optical storage, vector light field modulation and multi-functional optical devices.

BiographyXiaodi Tan, graduated from the Optical Department of Shandong University in 1984, he obtained a Master’s Degree from the Optical Engineering Department of the Beijing Institute of Technology. His Doctoral thesis on “Optical Secure Holographic Storage Systems” was completed at The University of Tokyo, Institute of Industrial Science, in the Laboratory of Kuroda-Shimura in 2001. He was a Senior Engineer of the Technology Division in OPTWARE Corporation, researching and developing the next generation of optical storage systems. And he was a Senior Technology Analyst, Distinguished Engineer and Optical Technology Manager of Core Device Development Group in Sony Corporation. As a “thousand Experts program” member, he came back China in 2012. He was a professor at the School of Optoelectronics in Beijing Institute of Technology. And he became a professor of Fujian Normal University from 2018. His research interests are in information optics: holographic storage, optical information display, optical devices, etc.

Recording of off-axis object light by optical scanning holography

Jung-Ping LiuFeng Chia University, Taichung, China

Optical scanning holography (OSH) is digital holography based on structure-light illumination, raster scanning, and single-pixel detection. OSH owns many unique properties in comparison with conventional digital holography (DH). For example, coherent hologram and incoherent hologram can be simultaneously recorded by OSH. The pixel pitch and hologram size depend on the setup of the scanner, and thus OSH can record big size or high-sampling-rate hologram. In addition, the point spread function and the lighting effect in OSH can be also easily controlled. In DH, the hologram is recorded by a CCD or CMOS image sensor. However, the acceptance angle of an image sensor is typically small. That is, the object light and the reference light must enter the image sensor from near the normal direction. This issue limits the potential of DH. For example, it is hard to detect a wide angular range of the object light, even though multiple recordings are available. Here we proposed to apply OSH to solve this problem. In other words, we will apply OSH to record a hologram at a large angle of the object light. The setup, the principle, and the experimental results will be shown to prove the ability of this technique.

BiographyDr. Jung-Ping Liu received the B.S. degree in physics from National Tsing Hua University, Taiwan, in 1999, and the Ph.D. degree in optical sciences from National Central University, Taiwan, in 2005. He is currently a Professor in Department of Photonics, Feng Chia University, and also a Topical Editor of Applied Optics. His current research interests are holography-related techniques, including digital holography, holographic 3-D display, 3D sensing, and holographic data storage. Dr. Liu has authored over 50 technical papers, and has coauthored a textbook Introduction to Modern Digital Holography with MATLAB (Cambridge University Press, 2014).


Session 6


Generation of phase-only hologram

Peter Wai Ming, TsangCity University of Hong Kong, Hong Kong, China

Existing spatial light modulators (SLMs) are only capable of displaying either the magnitude or the phase component of a complex-valued hologram. Hence, displaying a complex-valued hologram directly on a single SLM is a rather tedious task that could involve costly and complicated optical setups. A more simple solution is to generate an amplitude-only, or a phase-only hologram (POH) so that it can be directly display on a single, commodity SLM. In comparison, a phase-only hologram is preferred as it can be displayed as an on-axis hologram with higher optical efficiency. A common approach to generate a POH is to adopt the Gerchberg Saxton algorithm (GSA) or the direct binary search (DBS), with which the hologram is modified through multiple rounds of iterations until its reconstructed image is similar to a target image. Despite the success, the computation time is lengthy and computers with high processing power is required for real-time operation. In this paper, a review on several non-iterative methods for generating phase-only holograms will be reported. Being different from the iterative approach, these methods share the common feature that only negligible amount of additional overhead is involved in the original hologram generation process. Briefly, a source image is modified in a way that dilutes the effect of the magnitude component of its hologram, so that the phase component alone will be sufficient to provide a favorable reconstruction of the source image. Experimental results based on numerical and/or optical reconstruction will be employed to demonstrate the performance of each method.

BiographyDr. Peter W.M. Tsang (MIEEE, MOSA, MSPIE) graduated with a PhD in the University of Hong Kong in 1987, and is currently an Associate Professor of the Department of Electronic Engineering, City University of Hong Kong. He is currently serving as a Topical Editor and an Editor of the Applied Optics and ICT Express, respectively. His research interest includes Digital Holography and 3-D Video Technology.

Review on Incoherent Digital Holography

Ting-Chung PoonVirginia Tech, USA

Incoherent holography records the intensity distribution of a 3D object holographically, while coherent holography records the complex amplitude distribution. There are two incoherent digital holographic techniques to date: optical scanning holography (OSH) and Fresnel incoherent correlation holography (FINCH). OSH does not perform interference between the object light and the reference light to obtain holographic information. Instead, a heterodyne interference fringe pattern without the information of the object is first generated, and the 3-D object is then raster scanned by this interference pattern. The scattered light from the object is detected subsequently by a single-pixel detector and demodulated to obtain a resulting hologram. FINCH is based on a single-path and self-interference interferometer, which generates a hologram that is composed of the summation of Fresnel zone plate (FZP) patterns. I will discuss the basic principle of OSH and FINCH and then compare the differences between them.

BiographyTing-Chung Poon is a Professor of Electrical and Computer Engineering at Virginia Tech, Virginia, USA. His current research interests include 3-D image processing, and optical scanning holography (OSH). Dr. Poon is the author of the monograph Optical Scanning Holography with MATLAB (Springer, 2007), and is the co-author of, among other textbooks, Introduction to Modern Digital Holography with MATLAB (Cambridge University Press, 2014). Dr. Poon served as Topical Editor/Division Editor of Applied Optics from 2004 to 2014. Dr. Poon is the founding Chair of the Optical Society (OSA) topical meeting Digital holography and 3-D imaging (2007). Currently Dr. Poon is Associate Editor-in-Chief of Chinese Optics Letters, and Editor of Applied Sciences. Dr. Poon is a Fellow of the Institute of Electrical and Electronics Engineers (IEEE), the Institute of Physics (IOP), the Optical Society (OSA), and the International Society for Optics and Photonics (SPIE). He received the 2016 Dennis Gabor Award of the SPIE for “his pioneering contributions to optical scanning holography (OSH), which has contributed significantly to the development of novel digital holography and 3-D imaging.”


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Data analysis for optical measurement

Kemao QianNanyang Technological University, Singapore

Data are acquired from an optical measurement system. Simpler and faster acquisition is desired, which can be possibly achieved with the help from the subsequent data analysis techniques. (i) Single-frame profilometry: To remove the background intensity from a fringe pattern, an adaptive empirical mode decomposition method was developed; (ii) Binary pattern projection with defocusing and phase-shifting: To reduce the number of gray code patterns, ternary patterns and quaternary patterns were obtained by defocusing binary patterns. Various phase-shifting algorithms were analyzed and compared with respect to the capability of nonlinearity suppression; (iii) For dynamics measurement, the data we obtained were a 3D cube (2D spatial + 1D temporal). Both phase-shifting and carrier are avoided by using a reliable phase difference estimation technique.

For general data analysis, the following will be discussed. (i) A3 requirement: accurate, accelerated and automatic data processing is required; (ii) WOT strategy: the windowed, optimized and tracking processing strategy is explained; (iii) Windowed Fourier transform from fringe pattern analysis is shown as an example; (iv) “Gabor meets Gabor” is demonstrated as an interesting application; (v) Accelerating fringe analysis and digital image correlation by GPU is introduced.

Finally, feature description and feature matching for computer vision and augmented reality are introduced. It can be seen as general optical measurement.

From the above mentioned works, it is not difficult to conclude that data analysis plays an essential role in optical measurement.

BiographyDr Qian Kemao is an Associate Professor in the School of Computer Science and Engineering (SCSE) at the Nanyang Technological University (NTU). He graduated from University of Science and Technology of China (USTC), where he got his BE, ME and PhD degrees. His research interests include experimental mechanics, optical metrology, image processing, computer vision, and computer animation.

Partially coherent light lasers and their characteristics

Jixiong PuHuaqiao University, China

There have been increasing interests in generating partially coherent light, due to partially coherent light having special characteristics, such as reducing speckle etc. In general, the common method for producing partially coherent light is passing a completely coherent laser through a rotating ground glass or SLM. In this paper, we report the direct generation of partially coherent light. Two approaches are employed to generate partially coherent light. One approach is using degenerate laser resonator. We find that the laser with degenerate resonator can produce partially coherent light with low coherence. By inserting a aperture inside the resonator, we can modulate the coherence of the output partially coherent light. Other approach for generating partially coherent light is using a spatial light modulator (SLM) with dynamic phase modulation acts as a cavity mirror. It is shown that we can generate non-uniformly correlated partially coherent light (NUC-PCL) from this kind of laser.

BiographyProf. Jixiong Pu obtained a B. S. degree, and M. S. degree from Fujian Normal University, in 1983 and 1986, respectively. In 2002, he was awarded Dr. Eng. from University of Tsukuba (Japan). He has been a faculty member at Huaqiao University since 1986, and he became a full professor in 1999. From 1998 to 1999, he visited University of Tsukuba, and in 2021-2002 he visited the same University as a JESP Fellow. His research interests include theoretical and experimental investigation on partially coherent light, light field modulation, optical imaging, and nonlinear optics etc. Until now, he is the author of more than 200 referenced journal papers.


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Multimode-fiber/scattering-medium computational optical endoscopic imaging based on digital wavefront modulation

Liyong RenXi’an Institute of Optics and Precision Mechanics, CAS, China

Light wave becomes extremely distorted when it passes through a turbid medium. Indeed, the inhomogeneity of scattering media and the mode dispersion of multimode optical fibers (MMF) always distort the propagation of light waves since they divert the propagation direction and disorder the spatial relationship of rays from the object. This becomes a big challenge for the applications of biological tissues endoscopic imaging. To overcome this problem, many methods based on computational optical imaging schemes have been reported and such a research has become a hot topic in recent years. These methods include the computational ghost imaging, the digital phase conjugation, the speckle correlation, the wavefront shaping, and the optical transmission matrix (TM), etc.

In this talk, we report our recent works on computational optical imaging based on digital wavefront modulation, which is useful for the applications of endoscopy. On one hand, we propose a round-trip imaging method based on the optical TM of the scattering medium, where the light wave is distorted twice. The object is recovered directly from the distorted output wave, while no scanning is required during the imaging process; One the other hand, by modulating the amplitude instead of the phase of the incident light wavefront, we propose a high-speed binary amplitude-only modulation method to focus and scan light through a MMF based on the digital micro-mirror device (DMD). This method can also be extended to focus and scan light at multiple planes along the axial direction by just modulating the input wavefront.

BiographyDr. Liyong Ren got his Ph. D degree in Optical Engineering in Shanghai Institute of Optics and Fine Mechanics of CAS in March 2004. Since then he joined the State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics (XIOPM) of CAS, as an associate professor. He was a JSPS Fellow and worked in the University of Electro-Communications (UEC) from May 2007 to May 2009. He became a professor of XIOPM from January 2009. And from Nov. 2013 and March 2017, respectively, he became the vice director and director of the Research Department of Information Photonics (RDIP) of XIOPM. His research interests include micro/nano fiber optics and polarimetric imaging, etc. He has published more than 100 peer-reviewed journal papers and 80 conference papers, and obtained more than 15 Chinese patents. He is a Senior member of SPIE, OSA and COS.

Holographic zoom system based on liquid device

Qiong-Hua WangSichuan University, China

As an ideal three-dimensional (3D) display technology, holographic display records and reproduces all light field information, which includes the amplitude and phase in the form of a fringe pattern generated by interfering with a reference beam. Meanwhile, the electrowetting and dielectrophoretic effect, which have undergone tremendous development incessantly because of the voltage control directly, have prospect to become more popular technology. Two holographic zoom systems are proposed based on the programmability of liquids crystal on silicon (LCoS) and zoom characteristics of liquid lens. A zoom holographic display system based on Fresnel diffraction using a liquid lens is proposed. Ensure that the holographic plane, liquid lens and receiver plane remain stable, and a virtual holographic plane is constructed by the liquid lens. By altering the voltage which is applied to the liquid lens, the focal length of the liquid lens can be controlled. Thus, the sampling rate is variable on the virtual holographic plane. Consequently, the zoom holographic display without mechanical change is realized on the receiving screen by Fresnel diffraction. In addition, we propose a zoom holographic display system based on Fourier diffraction. By loading a divergent spherical wave, the focus planes of the reconstructed image and the zero-order diffraction beam induced by the LCoS can be separated. By controlling the focal lengths of the liquid lens and the encoded digital lens on the spatial light modulator panel, we can change the magnification of the reconstructed image very quickly, without mechanical parts and keeping the output plane stationary.

BiographyQiong-Hua Wang is a professor of optics at the School of Electronics and Information Engineering, Sichuan University, China. She was


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a research scientist at the School of Optics/CREOL, University of Central Florida from 2001 to 2004. She received her M. S. and Ph. D. degrees from the University of Electronic Science and Technology of China (UESTC) in 1995 and 2001, respectively. She worked at UESTC from 1995 to 2001 and at Philips Mobile Display Systems in Shanghai in the summer of 2004. She has published approximately 200 SCI papers. She has authored 2 books. She holds 5 U. S. patents and 89 Chinese patents. She is a Fellow of the Society for Information Display (SID) and associate editors of Optics Express and Journal of the Society for Information Display. Her research interests include optics and optoelectronics, especially display technologies.

Optical nanoscopy: truly non-intrusive

Jianying ZhouSun Yat-sen University, China

Super-resolution optical microscopy, now entering the age of nanoscopy, is of great value to chemical, physical, and particularly biomedical researches. A great leap forward has been achieved in the past two decades. This presentation will review various recent optical nanoscopic techniques, including near field nanoscopy with metal tip enhanced optical imaging, as well as newly developed stimulated emission-depletion microscopy, stochastic optical reconstruction microscopy and structured illumination microscopy. These and other various nanoscopic techniques can be clarified as either physically intrusive, such as scanning near-field optical nanoscopy, or chemically or biologically intrusive, as synthesizing organic compounds having to be introduced to make the sample fluorescent or absorptive. In this presentation, an optical field manipulation technique on a conventional confocal microscopy is introduced, which readily breaks the diffraction limit in a non-fluorescent sample. By tightly focusing optical vector field with modulated amplitude and phase front, a far-field lateral resolution of λ/6 can be achieved in theory with visible light illumination. With such technique, a focal spot down to a size of 0.071λ2, which is the smallest focal spot to our knowledge, is obtained. A fluoresent label-free, far-field, linear and home-built nanoscopic system is set up, showing the optical resolution down to sub-80 nm. Both metal and nonmetal samples are tested under our nanoscope, indicating the quality and general applicability of our system. Inspired by the recent developing metalenses, our technique can be further integrated on-chip, yielding a small system with more accurate fabricating alignment, higher imaging performance and much lower cost. Given the capability of this technique, we expect it to find widespread applications in both fundamental and applied sciences in near future.

BiographyProf. Dr. Zhou Jianying, PhD in physics from Imperial College, London in 1988, is affiliated to the State Key Laboratory of Optoelectronic Materials and Technology, Sun Yat-sen University. His research fields include optical field modulation and manipulation, ultrafast photonics, optical imaging, 3D displays and virtual reality optics. He has authored over 130 technical papers in international refereed journals and he has filed over 20 patents. He is a senior member of OSA and member of SPIE. He is in the editorial boards of Chinese Physics Letters, Acta Optica Sinica, and High Power Lasers and Particle Beams.

Dr. Liang Haowen, PhD in optical engineering from Sun Yat-sen University in 2016, is supervised by Prof. Zhou Jianying and now is an associate researcher at the State Key Laboratory of Optoelectronic Materials and Technology, Sun Yat-sen University. He is also a visiting scholar and research scientist in the group of Prof. Shin-Tson Wu, CREOL, University of Central Florida from 2014 – 2016. His research fields include optical field modulation and manipulation, optical imaging, emerging metasurfaces and 3D displays.

Incoherent digital holography using geometric phase

Sung-Wook MinKyung Hee University, Korea

The self-interference digital holography (SIDH) is a technique that can acquire holograms using natural or ordinary light sources. Unlike conventional holographic systems, which employs optical pathways for both object and reference waves separately, the SIDH utilizes the device that divides the incoming object wave into two and modulate them differently. Since the mutual coherence between the divided waves exists, the interference pattern under the low-coherence light is obtained. Our team recently developed the SIDH system utilizing a geometric phase (GP) lens as a wavefront modulator. The GP lens can divide the incoming linearly polarized wave into two orthogonal circularly polarized waves, each of which converges and diverges, respectively.


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In the on-axis interferometric structure, the bias and twin image as a result of the interference becomes a noise which significantly deteriorates the final reconstructed image. To eliminate the undesired information from the hologram, the phase shifting procedure should be followed. The optical circuit with polarizer-GP lens-polarizer structure can be utilized as a phase shifter. The geometric phase is obtained according to the relative angle between the first and last polarizers. Therefore, by rotating the one of the polarizers, the phase shifted interferograms are acquired in turn. By combining the phase shifted images, the complex hologram without the bias and twin image noise is obtained.

Our fundamental system structure is very simple, only with two polarizers and GP lens. And the required optical path length is remarkably short. Therefore, the application to the handy sized holographic camera is expected.

BiographySung-Wook Min received the BS and MS degrees in electrical engineering from Seoul National University, Korea, in 1995 and 1997, respectively. In August 2004, he received the PhD degree from his alma mater. Currently, he is a professor in the Department of Information Display, Kyung Hee University, which he joined in 2007. He is interested in 3-D imaging and the advanced display system based on light field 3D display technique, and holographic recording system.

Fast hologram calculation using wavelet transform

Tomoyoshi ShimobabaChiba University, China

Computer-generated holograms (CGHs) can generate arbitrary wavefronts from computer synthesized interference pattern and are used in a wide range of optical applications, including three-dimensional (3D) displays, holographic tweezers, optical elements, and beam generation. These applications require real-time interactive operations; therefore, fast CGH calculation algorithms are significantly required. We propose a fast CGH acceleration algorithm using wavelet shrinkage WAvelet ShrinkAge-Based superpositIon (WASABI). In the WASABI method, the distribution of light wave via wavelet transform becomes sparse, and the hologram calculation is performed using the sparse light distribution in the wavelet domain. Accordingly, the calculation speed can be drastically increased. We will also show a large-scale hologram calculation using the WASABI method. The calculated hologram printed into a glass substrate with the resolution of 65, 536 × 65, 536 pixels and a pixel pitch of 1 μm. In addition, to improve the image quality of the WASABI method, we will present the WASABI method applying random sampling.

BiographyTomoyoshi Shimobaba received the Ph.D. degree in fast calculation of holography using special-purpose computer from Chiba University, Chiba, Japan, in 2002. He is currently an Associate Professor with Chiba University. His research interests include computer holography and its applications. Dr. Shimobaba is a member of OSJ, OSA and SPIE.

Guidestar-assisted optical focusing and imaging at depths in tissue

Puxiang Lai Hong Kong Polytechnic University, Hong Kong, China

Focused and controllable optical delivery through and inside tissue has been desired for long in biomedical optics yet considered challenging due to the strong scattering of light, until most recently with the rapid and exciting progress in optical wavefront shaping. To enable light focusing within tissue, an internal guidestar must exist or be designed to produce a feedback signal that is proportional to the in situ optical flux in the region of interest (ROI). In this talk, we present recent research efforts on a series of virtual or physical internal guidestars for optical wavefront shaping to enable acoustic- and optical-diffraction limited optical focusing in scattering media. These guidestars include, but are not limited to, focused ultrasound mediation (including active modulation and passive photoacoustic sensing) as well as optical perturbation induced by absorbing objects and microbubble activities. Further improvement and potential applications are also discussed. The work has been supported by the Hong Kong Research Grant Council (no. PolyU 252044/16E) and the National Natural Science Foundation of China (no. 81671726 and no. 81627805).


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Biography Dr. Puxiang Lai received his Bachelor of Engineering in Biomedical Engineering from Tsinghua University, China in 2002, Master of Science in Acoustics from the Chinese Academy of Sciences, China in 2005, and PhD in Mechanical Engineering from the Boston University, USA in 2011. After that, Dr. Lai joined Dr Lihong Wang’s Optical Imaging Lab in the Washington University in St. Louis as a Postdoctoral Research Associate. In September 2015, he joined the Department of Biomedical Engineering at the Hong Kong Polytechnic University as tenure-tracked Assistant Professor.

Dr. Lai’s research focuses on the development of novel biomedical imaging, therapy, and manipulation modalities by using light and sound. Current research interests include, but are not limited to, optical wavefront shaping, adaptive optics, photoacoustic imaging, acousto-optic imaging, optogenetics, biospeckles, as well as application of artificial intelligence techniques in biomedical diagnosis and imaging. These studies have served to substantially advance the state of the art in biomedicine, and made Dr. Lai being recognized within and outside his field. For example, his research has thus far fueled more than 30 top journal publications (including two first-authored in Nature Photonics and Nature Communications, respectively), more than 55 invited or contributing talks at important international conferences and winning several best paper/poster awards. Dr. Lai has also been invited to give seminars in many famous universities and research institutions, and served as reviewer or editor for more than 25 premium journals. Since joining BME at PolyU in late 2015, Dr. Lai aims to continue his research on deep-tissue probing and treatment by using light and sound, which has been supported by the Hong Kong Polytechnic University, the Hong Kong Research Grants Council (RGC), the National Natural Science Foundation of China (NSFC), and the Shenzhen Science and Technology Innovation Commission. He has been awarded the 12th Chinese National 1000 Talent Plan Youth Scholar, the 2016-2017 Hong Kong RGC Early Career Award, and the Hong Kong Polytechnic University Faculty of Engineering Research Grant Achievement Award.

Particle measurement using interferometric particle imaging

Hongxia ZhangTianjin University, China

Particles are widely distributed in various fields and particle measurement is of great significance. Based on interferometric particle imaging (IPI) technology, the scattering properties of both spherical and non-spherical particles are studied. We investigate the influence of the sample pool layout on the IPI system and the sampling volume of the titled imaging system. The formula for the sampling volume and the corresponding measurement method are derived. The theoretical analysis and the experimental research of the concentration in defocused IPI are carried out. A well-developed image-processing algorithm is performed for calculating particle size. We research the relation of morphology of particles and polarization property of light scattered by them using classical electromagnetic theory and finite element analysis. A feasible method for distinguishing a spheroidal from a spherical shape based on the existence of a cross-polarized component of the scattered light is proposed. From the optical transfer matrix theory, we study the in-focus and out-of-focus images of both transparent spheroidal particle and rough particles. The orientation characteristic and the size information are obtained, respectively. The above research achievements has important significances in particle measurements.

Biography Hongxia zhang is current a full professor of school of precision instrument and optoelectronics engineering at Tianjin university. She has received the bachelors, Master and PhDs degree at Tianjin university in 2000, 2002 and 2005 respectively. Her major is optical engineering. Her research focuses on photoelectric detection, fiber optic sensing and liquid crystal optics. She has published more than 70 papers and obtained more than 40 patents.

Dynamic metasurface for terahertz wave-front modulation

Yan ZhangCapital Normal University, China

A novel configuration for active modulation of terahertz (THz) wave-front which is based on the all-optical dynamic metasurface is proposed. The dielectric metasurface is generated by pumping a thin silicon wafer with structured femtosecond light. Arbitrary pure phase modulation for THz radiation can be achieved. Several devices based on this technology, such as focal length tunable lens and dynamic holograms, have been experimentally demonstrated. This approach may pave the avenue of dynamic modulation of wave-front for THz imaging and communications.


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BiographyProfessor Yan Zhang, Director of Beijing Key Lab for Matematerials and Devices, Capital Normal University; He got his master degree and doctoral degree from Harbin Institute of Technology and Institute of Physics, Chinese Academy of Science in 1996 and 1999, respectively. After that, he has worked in Japan, Hong Kong, and Germany for several years. Since 2003, he works in the Department of Physics, Capital Normal University, as a full professor. He has published more than 220 papers which have been cited more than 3000 times, H factor is 30. His research areas are: THz imaging, metasurface devices, THz surface plasmonic optics, and optical information process.

Fast super-resolution structured illumination microscopy

Baoli Yao Xi’an Institute of Optics and Precision Mechanics, CAS, China

As a wide-field super-resolution (SR) technique, structured illumination microscopy (SIM) features the merits of fast imaging speed, large field-of-view, and low photobleaching and low phototoxicity to biological specimens. However, the SR-SIM routinely requires image reconstruction in the frequency domain that is prone to artifacts and very time-consuming due to the post-data processing. Here, we introduce a revolutionary approach to directly attaining super-resolution images for SR-SIM, termed spatial domain reconstruction (SDR). The SDR approach obtains the super-resolution image about 50-fold faster than that of the conventional frequency domain reconstruction (FDR) method, boosting SIM as an ideal tool for instant super-resolution imaging with the feature of “What You See Is What You Get”. The theory for the SDR method is described. The validity of SDR approach is verified by both numerical simulation and experiment of biological samples.

BiographyProf. Baoli Yao has had 21 years professional experience in optics & photonics since he obtained the Ph.D. degree in 1997 from Xi’an Institute of Optics and Precision Mechanics, CAS. He is currently the deputy director of State Key Laboratory of Transient Optics and Photonics, China. His fields of research include: super-resolution and 3D optical microscopy, digital holographic microscopy, optical micro-manipulation and micro-fabrication, optical data storage and information processing. He invented the DMD-based LED-illumination structured illumination microscope (SIM) and got the 90nm lateral resolution. He designed and developed an optical tweezers system, which has been successfully commercialized and exported to Canada. He implemented the high density holographic optical data storage in biomaterial. He has published more than 220 papers in peer-reviewed journals and 6 book’s chapters, and owned 17 Chinese invention patents. He obtained the “High-speed Imaging Award of Japan” in 2015.

Computational Imaging: When Optics Meets Deep Learning

Guohai SituShanghai Institute of Optics and Fine Mechanics, CAS, China

In this presentation, I will talk about the applications of deep learning technique in the field of optical imaging. I will first introduce the basic concept of deep learning, and then talk about three use cases: i.e., how deep learning can be used for image reconstruction in computational ghost imaging, imaging through opaque wall, and digital holography

BiographyGuohai Situ is a professor with the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, holding a “1000 Talents Plan” professorship. Before he joined this institute in late 2012, he spent about 6 years working in University College Dublin in Ireland, Universität Stuttgart in Germany, and Princeton University in the United States, after he obtained his Ph. D degree from the Chinese Academy of Sciences in 2006. Dr. Situ’s research interests span a wide field of computational optical imaging, ranging from developing novel techniques and algorithms for phase retrieval, to actively engineering the phase for computational optical imaging and optical signal processing. He has published 44 papers in leading journals including Nature Photonics. His papers have been cited over 2200 times according to Google Scholar. Dr. Situ is in the editorial boards of Scientific Reports, Advanced Optical Technologies, and Applied Optics.


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Common-path digital holographic microscopy and its applications

Jianglei DiNorthwestern Polytechnical University, China

Digital holographic microscopy (DHM) has become a novel tool with advantages of full field, non-destructive, high-resolution and 3D imaging. Compared with the typical Mach–Zehnder or Michelson interferometer configurations, the common-path DHM is more simple, compact and stable, and it has very promising and potential applications in the field of biological and medical science. We summarize the principles and applications of common-path DHM, introduce dual-wavelength technique to DHM, analyze the traditional optical configurations and basic realization method, and apply it to the quantitative measurement of MEMS device, living cells, and so on.

BiographyJianglei Di is currently an associate professor at Northwestern Polytechnical University (NPU). He received his BS and MS degrees in Applied Physics and Optics from NPU in 2004 and 2007, respectively, and his PhD degree in Optical Engineering from NPU in 2012. He is an author of more than 80 journal and conference papers. His current research interests include digital holography, deep learning and optical interferometry techniques. He is a member of SPIE and OSA.

Continuous-wave terahertz coherent phase-contrast imaging

Rong LuBeijing University of Technology, China

We introduced two continuous-wave terahertz coherent phase-contrast imaging methods. In-line digital holography has the capability to reconstruct the amplitude and phase distributions of the object wavefront simultaneously. It is a non-destructive, high-resolution, full-field dynamic phase-contrast imaging technique. Ptychography can reconstruct large field-of-view complex amplitude distribution of transmissive object from overlapped diffraction patterns. Both methods have been applied in terahertz domain for phase-contrast imaging based on continuous-wave terahertz source and array detector. In this paper, both Gabor in-line holographic and ptychographical configurations are investigated from algorithms to experiments. For in-line holography, the use of extrapolation, synthetic aperture and sub-pixel shifting are introduced to improve the resolution and reconstruction fidelity. We obtained ptychographical reconstruction results of polypropylene alphabet samples using continuous-wave terahertz configuration and new constrained ptychographical iterative engine algorithms.

BiographyLu Rong received his BS in 2006 and PhD in 2012 from Beihang University, China. From 2009 to 2011, he studied at the University of California, Los Angeles. From 2012-2014, he did his postdoctoral work in Beijing University of Technology (BJUT). Currently he is an associated professor in College of Applied Sciences, BJUT. His research interests include the field of digital holography, terahertz imaging, and coherent diffraction imaging. He is a member of SPIE and OSA.

Live-cell super-resolution volume imaging based on multi-angle TIRFM

Cuifang KuangZhajiang University, China

Observing three-dimensional volumetric subcellular structures and functions is essential for biological research. In this talk, we will discuss a new approach to achieve multi-color live-cell super-resolution volume imaging. To enhance the axial resolution, a set of multi-angle total internal reflection fluorescence microscopy (MA-TIRFM) images are collected by azimuthal averaged over different evanescent wave propagation directions. By treating them as a convex optimization problem, precise knowledge of system parameters, such as the quantum efficiency, absorption rate, detection efficiency, and point spread function, is not required. Then the problem is solved with self-built fast and efficient reconstruction


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algorithm based on distributed optimization acceleration. To increase the lateral resolution, several methods can be adopted, for example: 1. By simply introducing polarization modulation into the illumination procedure, sparsity is added to the recordings which can then be demodulated to reconstruct the super-resolution details. 2. By incorporating structured illumination and then return-shifting high-frequency components, the lateral resolution can be improved by about two folds. 3. By combing with stochastic localization method, the resolution of MA-TIRFM can also be enhanced. Among them, polarization modulation and structured illumination methods are proven to be perfectly adapted to studying subcellular dynamics of mitochondria and microtubule architectures during cell migration.

BiographyDr. Cuifang Kuang is a professor in the college of Optical science and engineering at Zhejiang University in Hangzhou, Zhejiang, China. He received the Ph.D. degrees in school of science of Beijing Jiaotong University in 2007. His current research interests are in optical microscopy, nanoscopy and high-precision optical measurement. He is the coauthor of about 100 international refereed journal papers. He owns more than 50 invention patents as the first inventor. He serves as a regular reviewer of many international journals on optical microscopy imaging including Optics Letters and Optics Express.

Large-size floating 3D light-field dispIay with the right occIusion

Xinzhu SangBeijing University of Posts and Telecommunications, China

TBA

BiographyXinzhu Sang is a professor of the State Key Laboratory of Information Photonics and Optical Communications at Beijing University of Posts and Telecommunications. His current research interests include three-dimensional display, holography and novel photonic devices. He has published more than 160 pre-reviewed research papers in scientific journals, and holds 15 patents.

He received dual bachelor’s degrees in instrument science and management engineering from Tianjin University in 1999, the M.S. degree from Beijing Institute of Machinery in 2002, and the Ph.D. degree at Beijing University of Posts and Telecommunications in 2005.From December 2003 to March 2005, he was with Optoelectronics Research Centre, Department of Electronic Engineering, City University of Hong Kong as a research assistant. From July 2007 to July 2008, he worked in University of California at Irvine as a postdoctoral research scholar. He has been a full professor in Beijing University of Posts and Telecommunications since September 2012.

He is the deputy director and the secretary-general of the committee of Holography and Optical information, Chinese Optical Society Processing, a senior Member of Chinese Institute of Communication, and a senior member of Chinese Institute of Electronics. In 2011, he was selected for the Program for New Century Excellent Talents in University, and Beijing Nova Program of Science and Technology.

Digital holographic imaging based on compressive sensing

Liangcai CaoTsinghua University, China

Digital holography has the advantages of wide FOV and high resolution as a computations imaging method. Compressive sensing algorithm is shown as a powerful tool for the inverse problem of the numerical reconstruction, especially in the suppression of twin-image noise. We develop a high SBP three-dimensional imaging algorithm based on the total-variation sparsity constraint. An efficient block-wise CH algorithm is used to reduce the digital holographic reconstruction time. The block-wise algorithm could locate accurate reconstruction searching spaces, resulting in high convergence speed and improved image contrast.

BiographyLiangcai Cao received his BS/MS and PhD degree from Harbin Institute of Technology and Tsinghua University, in 1999/2001 and 2005, respectively. Then he became an assistant professor at Department of Precision Instruments, Tsinghua University. He is now a tenured associate professor and serving as the director of Institute of Opto-Electronic Engineering at Tsinghua University. He was a visiting scholar at UC Santa Cruz and MIT in 2009 and 2014, respectively. His current research interests are information storage, processing and display based on holography. He is a senior member of OSA and SPIE.


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Combined structured illumination super-resolution microscopy with single molecule localization and tracking

Hui Li Suzhou Institute of Biomedical Engineering and Technology, CAS, China

Structured illumination microscopy (SIM) has gained much interests in biology due to diffraction-limit broken spatial resolution, video-rate imaging speed and low photobleaching capability. But spatial resolution about 100 nm is still not enough to study some macro-molecule movement and dynamics in live cell, for example, transportation of vesicles along cell skeleton driven by moto proteins. Single molecule tracking could achieve 10 nm localization precision and ms time rate with low molecule density. Hence, we developed a new imaging system combined structured illumination microscopy with single molecule localization and tracking. Cells skeletons are observed in structured illumination mode, and special regions of interest are selected for single molecule tracking to follow the movement of vesicles along microtubule

BiographyHui Li is a professor at Suzhou Institute of Biomedical Engineering and technology (SIBET), Chinese Academy of Science. He received his PHD degree from Institute of Physics, Chinese Academy of Science. He worked as a research associate at University of Konstanz (Germany), Iowa State University and University of Notre Dame from 2006 to 2013. His research interests including super resolution microscopy and single molecule biophysics.


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CIOP2018-2018-000111Separation of Variables Based Method for Fast Calculation of Imaging System in Lithographic toolsShuang Xu, Bo Tao, Yongxing Guo, and Gongfa Li | Wuhan University of Science and Technology, ChinaWe proposed a new method that combined the mathematical physics theory -- separation of variables, with Hopkins’ imaging theory, to calculate the imaging system of lithographic tools, which accelerated the computation speed.

CIOP2018-2018-000059Phase-shifting digital holography with vortex lensXiuping Zhang1,2, Junyong Zhang1, Dean Liu1, Jianqiang Zhu1 | 1 Shanghai Institute of Optics and Fine Mechanics, CAS, China; 2 University of Chinese Academy of Sciences, ChinaWe first design an amplitude-only vortex lens and then operate the four-step PSDH by rotating the vortex lens installed in the reference beam. The reconstructed image can be retrieved by four-step PSDH algorithm.

CIOP2018-2018-000083Deep-learning digital holographyHao Wang*1,2, Meng Lv1,2, Guohai Situ1 | 1 Shanghai Institute of Optics and Fine Mechanics, CAS, China; 2 University of Chinese Academy of Sciences, ChinaWe propose a deep-learning-based digital holography, which can reconstruct the object wavefront directly from a single shot digital hologram without interference terms or the need of the numerical calculation of the propagation process.

CIOP2018-2018-000039Angular variation measurement of spheroids using defocused interferometric particle imagingJinlu Sun1,2, Hongxia Zhang*1,2, Xiaolei Wang1,2, Dagong Jia1,2 and Tiegen Liu1,2 | 1 Tianjin University, China; 2 Key Laboratory of Optoelectronics Information Technical Science, EMC, ChinaThe angular variation of spheroidal particle is investigated from the out-of-focus image using both simulations and experiments. We found that the angular variation of a spheroidal particle exhibits isometric with the speckle of out-of-focus image.

CIOP2018-2018-000091Imaging through scattering media with the auxiliary of a known reference objectWanqin Yang1,2, Guowei Li1,2, Guohai Situ*1,2 | 1 Shanghai Institute of Optics and Fine Mechanics, CAS, China; 2 University of Chinese Academy of Sciences, ChinaImaging through scattering medium has long been a fundamental and challenging task. We propose a robust method for imaging through scattering media in a reflective geometry, relying on the a priori information of a known reference object.

CIOP2018-2018-000041GPU Based Real-Time Enhancement of High Resolution ImageMaosen Huang | Xidian University, ChinaCurvature filter and gradient transform based image enhancement algorithm can effectively suppress noises and enhance image edges, and a GPU based parallel implementation proposed in the paper makes the algorithm carried out in real time.

Oral Talks


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CIOP2018-2018-000116Shape information retrieval from simulated interferometric out-of-focus images of snowflakesHuanhuan Shen, Lingyuan Wu, Yanglong Li, and Weiping Wang | CEAP, China Two dimensional shapes of snowflakes are proved to be retrieved by HIO algorithm from simulated interferometric out-of-focus images.

CIOP2018-2018-000172Imaging Through Highly Scattering Media Based on the Optical Transmission MatrixBin Zhuang1,2, Chengfang Xu1,2, Yi Geng1,2, Guangzhi Zhao1,2, Hui Chen1,2, Zhengquan He1, Liyong Ren*1 | 1 Xi’an Institute of Optics and Precision Mechanics, CAS, China; 2 University of Chinese Academy of Sciences, ChinaBased on the optical transmission matrix of the scattering medium, the object can be imaged directly from the distorted output optical field. Especially, our method does not involve scanning during the imaging process.

CIOP2018-2018-000150Three-dimensional computational sectioning imaging by compressive incoherent digital holographyYuhong Wan, Tianlong Man, Dayong Wang | Beijing University of Technology, ChinaThree-dimensional (3D) reconstruction accuracy of incoherent holography is improved by reconstructing the holograms under the framework of compressive sensing. Therefore, 3D computational sectioning imaging is achieved in two practical implementations of incoherent digital holography.

CIOP2018-2018-000178Imaging through turbid medium using ptychographical iterative engineGuowei Li1,2, Guohai Situ1 | 1 Shanghai Institute of Optics and Fine Mechanics, CAS, China; 2 University of Chinese Academy of Sciences, ChinaThe advanced ptychographical iterative engine algorithm was used to replace the traditional Fienup algorithm to imaging through turbid medium. A better performance and larger field of view was then obtained.

CIOP2018-2018-000142Two-step phase retrieval algorithm from single-exposure measurementZhang Cheng, Wang Meiqin, Chen Qianwen, Wang Dong and Wei Sui | Anhui University, ChinaOur method includes two parts: first, single-intensity phase retrieval method is used to recover the amplitude in the spatial domain, then GS algorithm of two-intensity measurements recovers the lost phase.

CIOP2018-2018-000429Full analytical triangle-based computer-generated holographyYa-Ping Zhang1 *, Fan Wang1, Shuang Fan1, Wei Xu1 and Ting-Chung Poon2 | 1 Kunming university of science and technology, China; 2 Bradley Department of Electrical and Computer Engineering, USAA fast calculation method to obtain the full-analytical frequency spectrum of a spatial triangle based on the three-dimensional (3D) affine transformation is presented. Computer-generated holograms (CGHs) of an object can then be generated rapidly using the angular spectrum for propagation.


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Invited Talks

Meta-device for Photonics in Demand

Din Ping TsaiResearch Center for Applied Sciences, Academia Sinica, Taiwan, China

Metasurfaces composed of artificial structures have attracted lots of interests due to their ability on controlling the electromagnetic phase and amplitude at subwavelength scale. Beside those promising characteristics, people now intend to discover the field of meta-devices, where we can attain novel optical functionalities through changing the features of metasurfaces in demand. In this talk, several metasurface based components for photonic applications will be reported and discussed, including versatile polarization control, pixel-scale metalens, and achromatic meta-lens for imaging and sensing.

BiographyDin Ping Tsai received Ph.D from University of Cincinnati, USA in 1990. He is a Fellow of AAAS, APS, IEEE, OSA, SPIE, Electro Magnetics Academy (EMA) and The Physical Society of Taiwan. He is also Academician of Asia Pacific Academy of Materials (APAM), and Member of International Academy of Engineering (IAE). He currently serves as Editor of Progress in Quantum Electronics, Associate Editor of Journal of Lightwave Technology, Member of Editorial boards of APL photonics, ACS photonics, Physical Review Applied, Optics Communications, Plasmonics and Optoelectronics Letters, respectively. He is now the President of Taiwan Information Storage Association (TISA), Member of IEEE I&M Fellow Committee. He was the Director of the Board of SPIE; Member of OSA Fellows & Honorary Committee; SPIE Fellow Committee; IEEE Joseph F. Keithley Award Committee; OSA and IS&T Edwin H. Land Medal Committee; respectively. He was President of Taiwan Photonics Society (TPS); Chairman of IEEE Instrument and Measurement Society Taipei Chapter; and Chairman of the SPIE Taiwan chapter.

Modulating light propagation using metal-dielectric microstructures

Xiaoyong HuPeking University, China

Nanoscale integrated photonic devices play an essential role in the field of ultrahigh-speed information processing chips. Low energy consumption and ultrafast modulation of light propagation using using metal-dielectric microstructures construct the basis of nanoscale integrated photonic devices. Metamaterial-induced transparency and chip-integrated plasmon-induced transparency were realized to control the propagation of signal light. A thermo-optic tunable on-chip topological photonic state in the interface of a one-dimensional photonic crystal heterostructure sandwiched between two gold films was realized based on the semiconductor to metal transfer effect of VO2.

BiographyXiaoyong Hu is the Cheung Kong professor of physics at Peking University. He obtained the doctor’s degree from Institute of Physics, Chinese Academy of Sciences in 2004. Then he worked as a postdoctoral fellow at Peking University from 2004 to 2006. Then he joined Prof. Gong’s research group at Peking University. Prof. Hu’s current research interests include photonic crystals and nonlinear optics.

Threshold-less Cherenkov radiation in hyperbolic metamaterial

Fang LiuTsinghua University, China

To generate Cherenkov radiation (CR) in natural medium, the electron energy threshold is higher than hundreds of keV [1]. Even though various approaches were adopted, the high-energy electrons as high as tens of keV is still required in experiment [2]. Here we proposed to eliminate the threshold of electron energy to generate CR with hyperbolic metamaterial (HMM) [3]. The analytical and simulation results indicate that, even though electron energy is lower than



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0.1keV, the CR could be obtained in HMM in a visible and near-infrared frequency region. Further, the on-chip integrated threshold-less CR source, consisted with a planar electron emitter, Au-SiO2 multilayers HMM, and periodic metal nano-slits, has been realized. It is demonstrated that, with low-energy electrons (0.25-1.4keV), the CR is generated covering λ0=500~900nm. The electron energy generating CR experimentally is two~three orders of magnitude lower than that in natural media and artificial structures. As we know, this is the first on-chip integrated free electron light source benefiting from the threshold-less CR. Although less than 1% of the light energy could be coupled to free space, the total output light power still reaches 200nW, which is two orders of magnitude higher than free electron light source by using other nanostructures. This work provides a way to realize threshold-less CR, opens up the possibility of exploring high performance on-chip integrated free electron light source and optoelectronic devices, and offers the platform to study the interaction of flying electrons with nanostructures on chip.

BiographyFang LIU was born in 1980. He received the B.S.degree from Beijing Institute of Technology, China, in 2003, and Ph. D degree from Tsinghua University, China, in 2008. In July 2008, he joined the Electronic Engineering Department, Tsinghua University, China, and was promoted as an Associate Professor and Specially Appointed Researcher in Dec. 2011 and Feb. 2016, respectively.

In 2015, he was a visiting scholar in the Electrical Engineering and Computer Science Department, University of California, Berkeley, USA.

His current research interests is plasmonic optoelectronic devices and their applications. He published about 90 peer-review journal papers, which was cited by about 700 times. He proposed and realized the hybrid plasmonic-dielectric coupler, integrated plasmonic bio-sensor, plasmonic metal nanoparticle enhanced thin-film solar cells, and two surface-plasmon-polariton absorption based nano-lithography, which were published by Applied Physics Letters, Sensors and Actuators B, Scientific Reports, and Optics Express. Recently, he demonstrated for the first time the threshold-less Cherenkov radiation and realized the first on-chip free-electron light source in the world. The paper was published as the “home-page paper” by Nature Photonics in May, 2017. In the same issue, a news/views paper “A low-energy Cherenkov glow” reported his achievements and commented. This work was selected as “10 Breakthroughs of China Optics in 2017”.

Light-matter interaction within extremely small dimensions

Qiaoqiang GanUniversity at Buffalo & The State University of New York, USA

The unprecedented ability of nanostructures to concentrate light into extremely small dimensions is promising to develop new applications for enhanced light-matter interaction. In general, it is a grand challenge to manipulate light within extreme dimensions along both vertical and lateral dimensions. Along the vertical direction, there is a long-existing trade-off between optical absorption and thickness of active materials in most thin-film energy harvesting/conversion applications. Particularly, research on two-dimensional (2D) atomic crystals and Van der Waals heterostructures receives intense efforts, which is promising for the development of new functional electronic and optoelectronic energy efficient devices with the ultimately thin dimension along the vertical direction. However, due to their atomically thin nature, the optical absorption is inherently weak. On the other hand, along the lateral direction, it is also a grand challenge to break the classic diffraction limit, which was a long term target in many important areas including nanoscopic imaging, lithography, etc. In this talk, I will present an overview of several potential strategies to overcome these two grand challenges using new light-matter interaction strategies within extreme dimensions. We will aim to boost the weak light matter interaction along vertical and lateral dimensions and pave the way towards new applications.

BiographyDr. Qiaoqiang Gan is an Associate Professor in the Department of Electrical Engineering at University at Buffalo, The State University of New York. He received his PhD degree from Lehigh University in 2010. He is the recipient of Exceptional Young Investigator of University at Buffalo (2016) and the Senior Researcher of the Year 2017 of School of Engineering and Applied Science. His research publications include over 90 technical papers and 4 patents. He serves as the associate editor for Scientific Reports (NPG), IEEE Photonics Journal and J. of Photonics for Energy (SPIE).


Session 7


Generation of structured optical beams and electron beams

Yuanjie YangUniversity of Electronic Science and Technology of China, China

Vortices are inherent to any wave phenomena and many methods have been proposed for generation of vortex beams in the past decades. In 2010, Uchida and Tonomura reported the experimental generation of electron vortex beam for the first time, and since then the generations and applications of electron vortex beams have studied extensively. It is shown that discovery of vortex electron beams may lead to wide-ranging applications in new types of memory devices, imaging, manipulation of particles on the atomic scale, magnetic field sensing in materials science, etc. In this talk, I will give a brief review of the different methods for the generation of optical vortex beams, such as using spiral phase plates, spin-to-orbital angular momentum convertors, and computer-generated holograms (CGHs), including fork grating and spiral zone plates. After that, I will show two novel vortex beams, namely, anomalous vortex beams and anomalous Bessel vortex beam. Unlike the commonly Bessel vortex beam, both the intensity profile and the topological charge of the anomalous vortex beams vary with propagation. Lastly, I will discuss a fundamental superposition and selection principle of coaxial multiple wave fields, and many reported approaches for generating vortex beams can be considered as special cases of this principle. Based on this principle, an electron vortex beam with multiple OAM modes is generated experimentally.

BiographyYuanjie Yang is currently a professor of Optics in the School of Physics, University of Electronic Science and Technology of China. He got his PhD degree from Sichuan University in 2008, and after that he had ever carried out postdoctoral research at University of St Andrews (UK), University of York (UK) and National University of Singapore. His research interest mainly focuses on optical vortex beams, orbital angular momentum, electron vortex beams and optical trapping. He has published 30 papers including Science, Physical Review Letters, Nanophotonics, Optics Letters, etc.

Structured Chirality in Nanophotonics

Wenshan CaiGeorgia Institute of Technology, USA

The past few years have witnessed an explosive development of chiral photonic metamaterials that exhibit circular dichroism and optical rotation orders of magnitude larger than conventional materials. Chiroptical responses in such structured media lead to tailored light-matter interactions under circularly polarized incidence, which is further linked to the spin angular momentum of light. While chirality is most commonly applied in linear optical regime, opposing circularly polarized waves can also display parity as a property of higher order optics. In this talk, we present a set of photonic metamaterials that possess pronounced chiroptical features in the nonlinear regime. In additional to the gigantic chiral properties such as the circular dichroism and polarization rotation, the metamaterials demonstrate a distinct contrast between harmonic responses from the two circular polarizations. These nano-engineered structures are further exploited for chiral-selective two-photon luminescence from quantum emitters and a photon-drag effect with helicity-sensitive generation of photocurrent. Finally, we report an intensity-dependent modulation of optically active signals, including the circular dichroism and optical rotation, under a modest level of excitation power.

BiographyWenshan Cai is an Associate Professor in Electrical and Computer Engineering at the Georgia Institute of Technology, with a joint appointment in Materials Science and Engineering. Prior to joining Georgia Tech in 2012, he was a postdoctoral fellow at Stanford University. Dr. Cai received his B.S. and M.S. degrees from Tsinghua University in 2000 and 2002, respectively, and his Ph.D. from Purdue University in 2008. His research is in the area of nanophotonic materials and devices, in which he has made a major impact on the evolving field of plasmonics and metamaterials. Dr. Cai has published more than 50 journal papers in prestigious journals such as Science, Nature Materials, Nature Photonics, Nature Nanotechnology, etc., and the total citations of his recent papers have reached more than 10,000 within the past 10 years. He authored the book, Optical Metamaterials: Fundamentals and Applications, which is used as a textbook or a major reference around the world. Dr. Cai is the recipient of several national and international distinctions, including the OSA/SPIE Joseph W. Goodman Book Writing Award (2014), the CooperVision Science & Technology Award (2016), and the Office of Naval Research Young Investigator Award (2017).


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Plasmonics: friend or foe for laser miniaturization?

Ren-Min MaPeking University, China

Plasmonic nanolasers are a new class of amplifiers that generate coherent light well below the diffraction barrier bringing fundamentally new capabilities to biochemical sensing, super-resolution imaging, and on-chip optical communication. However, a debate about whether metals can enhance the performance of lasers has persisted due to the unavoidable fact that metallic absorption intrinsically scales with field confinement. Here, we report plasmonic nanolasers with extremely low thresholds on the order of 10 kW cm−2 at room temperature, which are comparable to those found in modern laser diodes. More importantly, we find unusual scaling laws allowing plasmonic lasers to be more compact and faster with lower threshold and power consumption than photonic lasers when the cavity size approaches or surpasses the diffraction limit. This clarifies the long-standing debate over the viability of metal confinement and feedback strategies in laser technology and identifies situations where plasmonic lasers can have clear practical advantage.

BiographyProfessor Ren-Min Ma is a youth 1000 plan assistant professor at school of physics, Peking University. He received the Ph. D. degree in Physics from Peking University, China in 2009. His dissertation was focused on nanoscale optoelectronic devices and physics and received the national top 100 Ph.D. dissertations of China award. He was a postdoc researcher at UC Berkeley during 2009 to 2014 before joining Peking University as a faculty. He published over 40 peer reviewed papers, including these on Science, Nature, Nature Materials, Nature Nanotechnology, Nature Communications and Science Advances, which received over 4500 citations. He demonstrated some of the first kinds of nanoscale lasers and applied the plasmonic nanolasers to sensing field with record performance. He experimentally addressed a long-standing question debated among the nanophotonics community of whether plasmonic effect harms or improves a laser performance.

Hyperbolic metamaterial assisted illumination nanoscopy

Zhaowei LiuUniversity of California at San Diego (UCSD), USA

Optical metamaterial is capable to manipulate light in nanometer-scale that goes beyond what is possible with conventional materials. Taking advantage of this special property, metamaterial-assisted illumination nanoscopy (MAIN) possesses tremendous potential to extend the resolution far beyond the conventional structured illumination microscopy. Among the available MAIN designs, hyper-structured illumination that utilizes strong dispersion of a hyperbolic metamaterial (HMM), is one of the most promising and practical approaches but it is only theoretically studied. In this work, we experimentally demonstrate the concept of hyper structure-illumination. ~80 nm resolution has been achieved in a well-known Ag/SiO2 multilayer HMM system by using a low numerical aperture objective (NA=0.5), representing 6-fold resolution enhancement to diffraction limit. The resolution can be significantly improved by further material optimization.

BiographyZhaowei Liu is an Associate Professor in the ECE Department at UCSD. He received his Ph.D. in Mechanical and Aerospace Engineering (MEMS/Nanotechnology) from UCLA in 2006, and was subsequently a postdoctoral researcher in Mechanical Engineering at UC Berkeley. In 2008 he joined the faculty at UCSD. He is a recipient of the 2010 Society of Manufacturing Engineers (SME) Outstanding Young Manufacturing Engineer Award, the UCSD 2010 Hellman Faculty Fellowship Award, the 2013 Office of Naval Research (ONR) Young Investigator Award, and the 2013 Defense Advanced Research Projects Agency (DARPA) Young Faculty Award. He is also the invited participant for the Frontiers of Science 2010 by National Academy of Science and the Frontiers of Engineering 2014 by National Academy of Engineering. He has been elevated to OSA Fellow in 2016. His previous work was selected as top 100 science stories of 2007 by Discovery Magazine, and top 10 scientific discoveries of 2008 by Time Magazine. His current research interest covers a broad spectrum of fields, including of nanophotonics, super-resolution ultrafast imaging and sensing, bio-photonics, metamaterials, plasmonics, energy, LEDs, and micro/nanofabrication.


Session 7


Sorting of Chiral Nanoparticles by metasurface with a broken symmetry

Tun CaoDalian University of Technology, China

Chiral Optical force allows a passive separation of enantiomer since its direction is dependent on the handedness of the chiral entities. However, the chiral polarizability is much weaker than the electric polarizability. As a consequence, the non-chiral gradient force dominates the chiral one that let the enantioselective sorting remain challenges. Here we present, both numerically and analytically, the chiral gradient force acting on the chiral nanoparticles can conquer the non-chiral one, when the specimens are placed in a Fano enhanced chiral gradient nearfield from plasmonic nanoaperture. Under a circularly polarized light illumination, the interaction between the resonant modes of a symmetric outer and asymmteric inner Au split-rings results in splitting of the modal energies. It provides a multipolar interference Fano resonance (FR) that can create a local aperture with giant gradients of optical chirality while maintaining low gradients of electromagnetic (EM) energy density. This feature enables a helicity-dependent transverse deflection of the chiral nanoparticles positioned above the aperture. It may offer a good platform for all-optical enantiopure compounds.

BiographyTun Cao is a Professor in School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology (DUT). He obtained BSc in 2002 at DUT and completed his PhD degree in 2008 under the guidance of Prof. Martin Cryan at the University of Bristol. He then worked as a postdoctoral at City University London before joining DUT as an associate professor in 2011. His current research focuses on the reconfigurable nanophotonics devices and their applications. He had published more than 50 scientific papers.

Recent advances in Metamaterial-Inspired Vacuum Electron Devices

Zhaoyun DuanUniversity of Electronic Science and Technology of China, China

Metamaterials are subwavelength structure material engineered to have some unique properties that are not found in nature, such as negative refractive index, reverse Doppler effect, and reversed Cherenkov radiation (RCR). Based on RCR, the Duan group has made great attempts to develop microwave metamaterial-inspired vacuum electron devices. The pencil-beam metamaterial backward-wave oscillator was first proposed in 2015. The simulation results show that a 2.454 GHz signal is generated and its peak output power is 4.0MW with a higher electronic efficiency of 31.5% relative to the conventional backward-wave oscillators. The sheet-beam metamaterial-inspired reversed Cherenkov oscillator was first developed in 2016. The experimental results show that the peak output power is 650 kW at 2.87 GHz. Further experiments are being carried out. The metamaterial-based extended interaction klystron was preliminarily studied in 2017. The simulation results show that for the operating frequency of 2.46 GHz, the peak output power is 102 kW, the gain is 48.5 dB, and the electronic efficiency is 39%. These metamaterial-inspired vacuum electron devices have obvious advantages, such as small size, high power, high efficiency, and large gain relative to conventional vacuum electron devices. These brand-new metamaterial-inspired devices have promising applications in radar, communications, electronic warfare, microwave heating, accelerators, imaging, and many other areas.

BiographyZhaoyun Duan received Ph.D. degree in Physical Electronics from the University of Electronic Science and Technology of China (UESTC) in 2004. He is a Full Professor of Electronics and the Deputy Dean of School of Electronic Science and Engineering, UESTC. He has published 78 papers in peer-reviewed journals such as Nature Nanotechnology, Nature Communications, Applied Physics Letters, Optics Express, Physics of Plasmas, IEEE Electron Device letters, and IEEE Transactions on Electron Devices. He has held 23 patents including 3 US patents. He was invited to deliver lectures at various research laboratories and industries and at various national and international conferences. He was a Committee Member and Session Chair of many national and international conferences. He is an IEEE senior member. He obtained many awards such as the Second Prize of the Natural Science Award from Ministry of Education of China in 2015 and the First Prize of the Technology Invention Award from Sichuan Province in 2015. His current research interests include the electromagnetic wave theory, metamaterials, high-power microwave/THz electronic devices and their applications.


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CIOP2018-2018-000319Unusual Scaling Laws for Plasmonic Nanolasers beyond the Diffraction LimitSuo Wang1, Xing-Yuan Wang1, Bo Li1, Hua-Zhou Chen1, Yi-Lun Wang1, Lun Dai 1,2, Rupert F. Oulton3, Ren-Min Ma1,2 | 1 Peking University, China; 2 Collaborative Innovation Center of Quantum Matter, China; 3 Imperial College London, UK.We report room temperature plasmonic nanolasers with extremely low thresholds on the order of 10 kW cm-2. And we find unusual scaling laws allowing plasmonic lasers to be more compact and faster with lower threshold and power consumption than photonic lasers when the cavity size approaches or surpasses the diffraction limit.

CIOP2018-2018-000064Thin films of high reflectivity for efficient radiative coolingYeqing Zhu1,2, Dong Wang1, Yong-Hong Ye1 | 1 Nanjing Normal University, China; 2 Nanjing Normal University Taizhou College, ChinaPassive radiative cooling dissipates heat from Earth into outer space through the atmospheric transparency window (8–13 μm). This technique can be useful for applications in passive building cooling, thermal photovoltaic energy conversion, renewable energy harvesting and passive refrigeration in arid regions. Here we propose a novel design of thermal radiative structure based on one-dimensional (1-D) photonic films which reflects 98.28% of solar radiation while emitting remarkably and selectively in the atmospheric transparency window, where the peak emission reaches 99.5%. Samples are characterized experimentally by using a Fourier transform infrared spectrometer and the experimental results match well with the theoretical ones. The structure can theoretically achieve a temperature reduction of about 50.3 °C from the ambient air temperature without solar radiation and non-radiative heat transfer. Under dry air conditions and assuming non-radiative heat transfer coefficient hc=6.9 Wm-2K1, it can theoretically achieve a temperature reduction of about 6 °C under direct solar radiation (AM1.5). Without the presence of non-radiative heat transfer, it can cool down 36.3 °C below the ambient air temperature at daytime radiative cooling.

CIOP2018-2018-000195Spatial differentiator: all-optical analog computing within subwavelength scaleZhichao Ruan | Zhejiang University, ChinaWe experimentally demonstrate optical spatial differentiation in subwavelength scale based on two different schemes: surface plasmon and spin Hall effect of light, respectively. Furthermore, we exploit the spatial differentiators in real-time high-throughput image processing.

CIOP2018-2018-000061Terahertz Reconfigurable Metasurface with Optical PumpJin-Ying Guo1,2, Guo-Hai Situ1, Yan Zhang1 | 1 Shanghai Institute of Optics and Fine Mechanics, CAS, China; 2 Capital Normal University, ChinaWe report a novel approach for realizing reconfigurable metasurface to modulate terahertz wave, the proof of concept experiments demonstrate that multiple holographic images and changeable focus lens can be realized in real time

CIOP2018-2018-000317Imaging the Dark Emission of SpasersHua-Zhou Chen1, Jia-Qi Hu1, Suo Wang1, Bo Li1, Xing-Yuan Wang1, Yi-Lun Wang1, Lun Dai1,2, Ren-Min Ma1,2 | 1 Peking University, China; 2 Collaborative Innovation Center of Quantum Matter, ChinaWe firstly directly image surface plasmon emission, an intrinsic but unrevealed feature of spasers in spatial, momentum and frequency spaces simultaneously and demonstrated that the coupling efficiency to plasmonic mode of spasers can approach 100%.

Oral Talks


Session 7


CIOP2018-2018-000209On-grating graphene surface plasmons enabling spatial differentiation in the terahertz regionYisheng Fang, Yijie Lou, Zhichao Ruan ｜ Zhejiang University, ChinaWe propose an all-optical second-order spatial differentiator working in terahertz (THz) region. It is featured for subwavelength thickness and broad spatial operation bandwidth and can be useful for real-time optical signal processing and imaging applications.

CIOP2018-2018-000137Generating and Tuning the Fano Resonance by Graphene Oligomers with Different NanostructuresJunbo Ren, Weibin Qiu ｜ Huaqiao University, ChinaFano resonance generating in graphene oligomers is systematically investigated in this study. The graphene oligomer is able to form plasmonic molecule and support Fano resonance. The optimization of Fano resonance is discussed by varying parameters of the nanostructures in mid-infrared frequency. Simultaneously, the environmental index sensing effect of the Fano resonance reaches a high sensitivity.

CIOP2018-2018-000306Toward Topologically Manipulation of Terahertz Photoresponse in Layered MaterialsJin Wang1,2,3, Cheng Guo1,2, Lin Wang1,2, Xiaoshuang Chen1,2, Weiwei Tang1,2, Wei Lu1,2 ｜ 1 Shanghai Institute of Technical Physics, CAS, China; 2 University of Chinese Academy of Science, China; 3 Shanghai Normal University, ChinaThe joint presence of narrow bandgap and a 2DEG arising from topological surface states enables the realization of excellent Ohmic contacts. We selected Bi2Se3 and TaSe2 to construct terahertz detectors with high sponsivity and short response time.

CIOP2018-2018-000335Low-aspect-ratio meta-holograms in visible lightGuoxing Zheng, Zile Li, Juan Deng, Liangui Deng, Qi Dai, Rao Fu ｜ Wuhan University, ChinaUsing a metasurface comprising an array of dielectric nanobricks enabled with dual magnetic resonances, ultracompact, low aspect ratio and high efficiency meta-holograms can be obtained in visible light.


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Invited Talks

High power multi-wavelength femtosecond optical parametric oscillator

Zhiyi WeiInstitute of Physics, CAS, China

Broadly tunable femtosecond lasers can be generated by synchronously pumped optical parametric oscillators. Recently, based on 515 nm and 1030 nm femtosecond laser sources, we have generated widely tunable from visible to mid-infrared femtosecond laser pulses combined with KTP, KTA, BBO, LBO and BIBO. The wavelength of output pulse is covered from 688 nm to 3.84 μm by changing nonlinear crystal. With a BIBO crystal, the output wavelength can be tuned from 688 nm to 2.6 μm. The maximum output power of signal is 1.09 W, and the OPO provides near transformed-limited 71 fs signal pulses. With a KTA crystal, the signal wavelength is covered from 1.41-1.71 μm, and the corresponding idler wavelength is from 2.61-3.84 μm. The OPO generates as much as 2.32 W of signal power and 1.31 W of idler power. The pulse duration of signal is down to as short as 129 fs. Based on this broadly tunable femtosecond laser, cooperated with SIBET CAS, we have studied the two-photon microscopy, confocal laser scanning microscopy and STED two-photon microscopy and get clear biological microscopic imaging.

BiographyProf Zhiyi Wei obtained Ph.D degree in 1991 from the Xi’an Institute of Optics and Precision Mechanics, in 1988. After two years postdoctoral fellow at Sun Yat-Sen University in Guanzhou, China, he visited the Rutherford Appleton Laboratory in UK, the Chinese University of Hong Kong, the Hong Kong University of Science and Technology, University of Groningen in the Netherland as a research scholar and post-doctor during 1993 to 1997. He joined in Institute of Physics, Chinese Academy of Sciences in 1997 and prompted as a full professor in 1999. From April 2000 to Sept 2002, he also worked at the Advanced Industrial Science and Technology (AIST) in Japan as a NEDO researcher. Up to now, he has published more than 300 peer-reviewed papers as co-authors. In view of his contributions on ultrafast laser technology, he won the Young Scientist Prize by CAS in 2001, the National Science Fund for Distinguished Young Scholars in 2002, Gangfu Hu Prize by the Chinese Physical Society in 2011. Presently he is the group leader and the director of Joint Laboratory of Advanced Technology in Measurements at Institute of Physics, CAS. He was elected as a fellow of the Optical Society of America in 2017.

‘Multiplexed’ mode-locked fiber lasers for single-cavity, dual-frequency-comb generation

Zheng ZhengBeihang University, China

Many important metrology applications have been enabled by the development of optical frequency comb technologies. Among them, dual-comb techniques that can realize high-performance temporal and spectral measurement using two combs with slightly different comb-tooth spacings have become the most attractive ones. Yet, dual-comb schemes based on two frequency-stabilized comb light sources face serious challenges in the system complexity, size and power consumption, due to the complicated optical and electrical subsystems to maintain and control the mutual coherence of two combs. On the other hand, lightweight and power efficient fiber lasers that can simultaneously generate two sets of pulses with slightly different repetition rates could drastically reduce the system complexity and further broaden the adoption of dual-comb schemes. In the past few years, we had proposed and validated the feasibility of generating dual-comb signals from a single laser, which is now becoming a hotly investigated topic for dual-comb applications. In this talk, I’ll discuss several approaches to realize fiber lasers that emit asynchronous ultrashort pulse trains by adopting a different design paradigm for mode-locked lasers through ‘multiplexing’. It has been shown that such dual-comb fiber lasers can deliver sufficient stability and coherence between the pulse trains for many metrology applications with greatly simplified system configurations. Our experimental demonstrations of several dual-comb temporal and spectral measurement will also be summarized.



Session 8


BiographyProf. Zheng Zheng received his B. Eng. degree in Electronic Engineering from Tsinghua University, Beijing, China in 1995, and M.S.E.E. and Ph.D. degrees from Purdue University, West Lafayette, IN, USA in 1997 and 2000, respectively. He was with the Optical Networking Group of Lucent Technologies, Holmdel, NJ, as a Member of Technical Staff between 2001 and 2002, where he had conducted research on advanced optical fiber communications technologies. In December 2003, he joined Beihang University as a Professor.

He has published more than 230 technical journal papers and conference talks, and holds 6 US patents and more than 20 Chinese patents. His current research interests include ultrafast and nonlinear optics, microwave photonics, and nanophotonics. He received the Li Foundation Heritage Prize in 2004. He is a fellow of the Chinese Institute of Electronics, and a member of IEEE Photonics Society and the Optical Society of America.

Fiber parametric temporal imaging for ultrafast applications

Kenneth Kin-Yip WongThe University of Hong Kong, Hong Kong, China

Inspired by the space-time duality, temporal imaging has been demonstrated as a powerful technique for single-shot real-time observation of ultrafast optical waveforms and has recently contributed in unveiling various nonlinear optical dynamics such as optical rogue waves and soliton collisions. However, the true potential of temporal imaging system is yet to be fully unleashed owing to, for instance, limited record length and suboptimal detection sensitivity, which restricts their broader applications. In this paper, we will introduce advanced temporal imaging systems empowered by fiber parametric process. In particular, in analogy with the spatial panoramic camera, a panoramic-reconstruction temporal imaging (PARTI) system has been developed that achieves an effective record length of 1.5 ns. Dissipative soliton collision dynamics from a microring resonator is comprehensively depicted for the first time. In additional to optical dynamics measurement, we have also extended the application of temporal imaging technique to ultrafast optical tomography by enhancing the system stability and optimizing the detection sensitivity through optical parametric amplification (OPA) and distributed Raman amplification (DRA). A new optical tomographic imaging modality that achieves an axial resolution of 60 mm, a sensitivity of around 80 dB at tens-of-MHz A-scan rate has been experimentally demonstrated for both biological and industrial samples.

BiographyProf. Kenneth Kin-Yip Wong received combined B.E. (1st class honor with medal award) degree in electrical engineering and B. S. degree in physics from the University of Queensland, Brisbane, Australia, in 1997. He received the M.S. degree in 1998 and the Ph.D. degree in 2003, both in electrical engineering at Stanford University. His research field included DWDM systems, fiber nonlinearity, fiber optical parametric amplifiers, microwave photonics, and biophotonics. He is author or coauthor of over 400 journal and conference papers. Prof. Wong is currently a Professor in the Department of Electrical and Electronic Engineering in the University of Hong Kong, where he won the Best Teacher Award 2005-06, Outstanding Young Researcher Award 2008-09, and Outstanding Teaching Award 2012-13 (Team). He served as an Associate Editor of IEEE Photonics Technology Letters and is now an Associate Editor of OSA Optics Express. During the 2009-10 academic year, he joined the Empower Teacher Program, organized by department of Electrical Engineering Computer Science (EECS) at the Massachusetts Institute of Technology (MIT) by co-teaching a sophomore course and living in a graduate residence. He was the recipient of OSA New Focus Student Award and IEEE/LEOS Graduate Student Fellowship, both in 2003 and participated in various student activities. He was the recipient of OSA New Focus Student Award and IEEE/LEOS Graduate Student Fellowship, both in 2003.

Progress on mid-infrared fiber lasers

Jianfeng LiUniversity of Electronic Science and Technology of China, China

Mid-infrared lasers, generally defined as an operation wavelength in the spectral region of 2~20 μm, have attracted tremendous scientific and technological interests owing to their widespread applications.This wavelength range not only contains some strong vibration transitions of many important molecules, thus, exhibiting enormous potential in medical, spectroscopy, chemical and biomolecular sensing, but also covers the atmospheric transmission windows of 3~5 μm and 8~13 μm which are important for defense, atmospheric, security and industrial applications. Currently, several diverse approaches havebeen employed to generate the emission at different subranges of the mid-infrared wavelength region. Withthe development of infrared glass fiber, mid-infrared fiber lasers are attracting increasing attentions becausethey


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possess some inherent merits such as excellent beam quality, good heat dissipation, high efficiencyand compact packaging compared to the other sources, though certainly, they cannotbe regarded as a full replacement for the other lasers and rather provide complimentary capabilities. In this paper, we present recent progress on mid-infrared fiber lasers in the attractive 2 μm and 3 μm spectral regions. Despite the traditional silica fiber, three commonly used rare-earth ions doped infrared soft glass fibers (i.e., Er3+-, Ho3+-, Dy3+-doped fluoride fibers) are introduced. For the CW laser generation, some potential methods for power scaling (e.g., cascaded lasing) and wavelength extending (e.g., upshifting terminated Stark level) are discussed. For the pulsed laser generation, three main techniques i.e., Q-switching, mode-locking, and gain-switching are classified and analyzed. A series of new ways for improving pulse performance (e.g., dual-wavelength/waveband, high repetition rate, high efficiency, etc.) are presented. In the end, some discussions and prospective predictions are proposed.

BiographyJianfeng Li (Outstanding Youth Foundation, IEEE senior member, EU Marie Curie International Incoming Fellow) received his BS degree in applied physics from Sichuan University in 2003, and MS and PhD degrees in Optical Engendering from Sichuan University in 2005 and 2008, respectively. Since 2008, he began to work in the School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC). In 2011, he joined the Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS) at University of Sydney as a visiting scientist. In 2013, he joined the Aston Institute of Photonic Technologies (AIPT) at the Aston University (UK) as a Marie Curie International Incoming Fellow funded by the European Commission’s Seventh Framework Program (FP7). He has been promoted to a full professor at UESTC from 2015. His current research interests focus on mid-infrared fiber laser technology, ultrafast & nonlinear fiber optics, applications of mid-infrared fiber sources in medicine and nonlinear optics, fiber sensing, near-infrared spectroscopy detection technology. Until now, he has been responsible for more than 30 scientific research projects (including European Union’s 7th Framework Program, National Natural Science Foundation of China, General Armament Department Project, etc.). He is current a editorial member of Scientific Reports and has published over 100 papers in peer-review journals and international conferences (including Nat. Commun., Opt. Lett., Opt. Exp., IEEE J. Sel. Top. Quantum Electron., Sci. Rep., etc.).

Ultrafast femtosecond fiber lasers and VUV source generation

Zhigang ZhaoThe University of Tokyo, Japan

High repetition rate Vacuum Ultraviolet (VUV) sources are highly demanded for Angle Resolved Spectroscopy (ARPES) experiments, which is the only tool that can map the electron energy bands in solid materials. Traditional Ti:sapphire lasers suffer from low repetition rate on the order of few kilohertz, which can be easily overcome by ultrafast fiber lasers. With fiber chirped pulse amplification (FCPA) technology adopted, 100 W femtosecond laser with a repetition rate of 1MHz and pulse duration of 270fs was developed in house. VUV source at 10.7eV with repetition rate of 1MHz were prepared with average power on mW level, based on cascaded third harmonic generation configuration. Meanwhile, VUV source at 8.3 eV with repetition rate of 10MHz using femtosecond enhancement cavity (fsEC) were also developed for same motivation.

BiographyDr. Zhigang Zhao is a researcher in the Institute for Solid State Physics (ISSP), the University of Tokyo, Japan. Currently, he is mainly involved in the development of high power ultrafast fiber lasers, high power deep ultra-violet (DUV) lasers, and vacuum ultra-violet (VUV) beam sources with repetition rate on the order of megahertz. Dr. Zhao got his bachelor degree from Shandong University in 2006, and doctor degree from Zhejiang University in 2011. Afterwards, he spent one year in Technische Universität Berlin, Germany, as a postdoctor. Since November 2012, Dr. Zhao moved to ISSP as a researcher. He has published nearly 50 papers on peer-reviewed journals, such as Optics Express, Optics Letters, IEEE Journal of Selected Topics in Quantum Electronics, IEEE Journal of Quantum Electronics, Applied Physics Express.

Suppression of noise sidebands in low-noise single-frequency fiber laser

Shanhui XuSouth China University of Technology, China

We introduce a suppression of noise sidebands in low-noise single-frequency fiber laser. The relationship between the noise sidebands of the coherent light signal and the modulation of the inter-cavity relaxation oscillation is investigated. By using a self-injection locking system with a booster optical amplifier, the noise sidebands are completely suppressed. The


Session 8


RIN is suppressed to below -150 dB/Hz in a broad frequency range, while the quantum noise limit is -152.9 dB/Hz. This low-noise single-frequency fiber laser without noise sidebands has exhibited significant application value in the coherent light detection field like LIDAR, coherent optical communication, and high-precision fiber sensing.

BiographyShanhui Xu received the M.Sc. degree from the South China University of Technology (SCUT), Guangzhou, China, in 2001, and the Ph.D. degree from South China Normal University, Guangzhou, China, in 2009. From 2001 to 2003, he was a Research Engineer in Huawei Technologies Co., Ltd. He is currently a Professor in the State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology.

High power tandem pumped fiber lasers

Pu ZhouNational University of Defense Technology, China

Tandem pumped fiber lasers has been considered to have the advantage in significantly increasing the pumping capacity, modal control and heat management. In recent years, tandem pumping technique has been employed in various kinds of fiber lasers based on different kinds of rare-earth doped fibers. In this talk, we will report the recent result in high brightness laser for tandem pump use, high power tandem pumped fiber laser, and performance scaling of fiber laser based on tandem pumping scheme in our group. We have achieved a 5kW high brightness fiber lasers system based on power combining of 19 channels of home-made 1018 nm fiber laser using a home-made fiber power combiner. Several kilowatt level tandem pumped Yb-doped fiber MOPA will be shown by using 1018 nm fiber laser as pump, for example, a record power of 4 kW narrow-linewidth fiber amplifier will be released in detail.

In addition to power scaling of Yb-doped fiber laser, recently it is found that tandem pumping technique also help in power scaling of fiber lasers operating at other wavelength. An international cooperation enabled efficient tandem pumped ultrafast 2 um fiber laser will be cited and introduced. More details will be presented in the conference.

BiographyPu Zhou received Ph.D degree in Optical Engineering from National University of Defense Technology (NUDT), China, and now he is a professor and supervisor for Ph.D student in NUDT. His recent research interests include fundamental investigation on high power fiber laser and beam combining, where novel research results on nonlinear optical effect manipulation, lasing at extreme wavelength and its application in tandem pumping, precise phase control of multi-channel laser beams, propagation of beam array and its performance evaluation have been achieved. As the first author or corresponding author, he has published more than 120 peer-reviewed papers.

Narrowband fiber laser and its application in distributed acoustic sensing

Minghong YangWuhan University of Technology, China

A distributed acoustic sensing system based on broadband weak fiber Bragg grating array which is capable of quantifying multiple dynamic strain perturbations is introduced. The technique is based on measuring the phase of the interference signals between two adjacent weak FBGs. Phase, amplitude, frequency response and location information can be directly obtained at the same time by using the passive 3×3 coupler demodulation technique. The experimental results show that this system can well demodulate vibration signals with different frequencies and amplitudes generated by piezoelectric transducer. Meanwhile, the system realized acoustic-phase detection in the air with a frequency range of 87 Hz to 1250 Hz.

BiographyMinghong Yang received PhD in physical electronics from Huazhong University of Science and Technology in 2003. From July 2003 to December 2005, he was with the Fraunhofer Institute for Applied Optics and Precision Mechanics in Jena, Germany as post-doctoral visiting scholar, after that he worked in the Berlin University of Technology, Germany as research fellow. Since 2009, he has been a research faculty member in the National Engineering Laboratory for Optical Fiber Sensing Technology, Wuhan University of Technology, China. In Feb.- Sept. 2013, he was senior visiting professor at the Virginia Tech, USA, and he was also invited to the Friedrich-Schiller University Jena, Germany as guest professor at the Abbe School for Photonics in 2014. Minghong Yang is a Fellow of IET, a senior member of IEEE, a TPC member of the international conferences of optical fiber sensors. He is serving as associate editor for IEEE Sensors Journal. His research interests include optical fiber sensors, thin film sensors.


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Generation and amplification of sub-nanosecond laser pulses at high energy

Yulei WangHarbin Institute of Technology, China

Laser pulses with high peak power has made significant breakthroughs in fields of extreme high-field physics, inertial confinement fusion and particle beams. To achieve exploration of physical phenomena in extreme conditions, MOPA (master oscillator power-amplifier) and CPA (chirped pulse amplification) have been developed to amplify the nanosecond long pulses at high energy and the femtosecond ultrashort pulses at high peak power, respectively. However, the laser pulse in the time of several hundreds of picoseconds, much shorter comparing to the nanosecond pulses and much longer comparing to the femtosecond pulses, has attracted less attention from the research and applications. And what’s more, amplifying the pulse with the width of several hundreds of picoseconds to high-energy and high-power is facing the difficulties and limitations with MOPA and CPA. For MOPA, because of the damage threshold fluence in laser system, the shorter pulse results in larger aperture components and scale of the system, which means the output laser intensity is limited. Also, the output intensity is limited by B integral for avoiding self-focus damage and declining beam quality. Moreover, the laser energy extraction efficiency is very low for shorter pulses. For CPA, it is limited by the Fourier spectral width in hundred picosecond laser pulses amplification. The 200-ps laser pulse can only be expanded to 280 ps by a 1740/mm grating at Fourier transform limited. Meanwhile, the damage threshold of gratings is limited by the order of 100 mJ/cm2.

We developed the methods to generate the hundreds of picoseconds laser pulses by SBS (Stimulated Brillouin Scattering) pulse compression, and to amplify the short pulses to high energy by BPA (Brillouin Power Amplification). Results show that this method can provide high gain, and thus make it possible to get high efficiency ~100 ps laser pulses amplification in high-power solid-state laser system.

BiographyYulei Wang is Professor of physical electronics at Harbin Institute of Technology. He received the B.S. degree and Ph.D. degree from Harbin Institute of Technology, Harbin, China, in 2001 and 2007 respectively. He worked at Imperial College London as a visiting scholar from 2011 to 2012. His research interests are high power solid-state lasers, stimulated Brillouin scattering (SBS) and its applications in high-power lasers. He worked as a leadership to build the high power hundred-Joule laser facility with the extremely excellent quality. He holds 15 patents, has authored and co-authored 80 papers in peer-reviewed journals, including APL, OL, OE, etc. He gained the National Science Foundation for Excellent Young Scholars in 2016.

Spontaneous symmetry breaking in an optical microcavity

Yunfeng XiaoPeking University, China

Spontaneous symmetry breaking is a ubiquitous property in nature and diverse fields of modern physics. However, such symmetry breaking has been elusive experimentally in the optical systems, which usually demands multiple identical subsystems. We experimentally demonstrate spontaneous symmetry breaking in a single whispering-gallery microcavity without any explicit breaking of parity or time-reversal symmetry. Above a threshold power, the intensities of clockwise and counterclockwise propagating waves in a cavity grow unbalanced, which is induced by the Kerr-nonlinearity-modulated coupling between the counter-propagating waves.

BiographyDr. Yun-Feng Xiao received the B.S. and Ph.D. degrees in physics from University of Science and Technology of China in 2002 and 2007, respectively. After a postdoctoral research at Washington University in St. Louis, he joined the faculty of Peking University in 2009, and was promoted a tenured professor in 2014. His research interests lie in the fields of whispering-gallery microcavity optics and photonics. He has authored or co-authored more than 130 refereed journal papers in Science, Nature Photonics, PNAS, PRL, Advanced Materials et al.


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Plamsmonic Nanoimprinting for Large-area Nanotexturing

Qidai ChenJilin University, China

Femtosecond lase induced periodic structures (LIPSS) becomes more and more attractive due to its sub-diffraction limitation ability in nanostructure fabrication and abundant physical mechanisms in laser-matter interaction. Since first reported in 1965, it has been demonstrated on metals, semiconductors and insulators. However, the mechanisms of origination of these structures and period controlling are still in debate. The fabrication of large-area uniform structure surfaces and a self-contained theoretical model are still the two main goals in this research area. Herein, we proposed a laser induced plasmonic nanoimprinting model based on the experiment results of subwavelength structures (SWS) and deep-subwavelength structures (DSWS) on Si and ZnS, and developed a method for rapid fabrication of large-area uniform structure surface. The formed SWS and DSWS were found potential applications in SERS, superhydrophobicity, nano-photonics and so on.

BiographyQi-Dai CHEN received the Ph.D. degree in Plasma Physics from Institute of Physics, CAS, Beijing, China, in 2004. He worked as a JST postdoctoral researcher in Department of Physics, the Osaka City University, Japan, from 2005 to 2006, and then as an associate professor in College of electronic science and engineering, Jilin University, China. In 2011, he was promoted as a full professor. His research interests have been laser nanofabrication technology for micro-optics, semiconductor laser beam shaping and sub-wavelength anti-reflective microstructure. So far, he has published over 180 scientific papers in the above fields, which have been cited for over 3700 times according to ISI search report，H-index 39.

Self-assembly of pulses in mode-locked fiber lasers

Meng PangMax-Planck Institute for the Science of Light, Germany

The tightly-trapped optoacoustic interaction in solid-core photonic crystal fiber (PCF) can be used to force fiber lasers to mode-lock at a high harmonic of their cavity round-trip frequency. In such optoacoustic mode-locking lasers, the solid-core of a PCF with a high air-filling fraction acts like a quartz oscillator that can be driven by a sequence of optical pulses whose repetition rate lies close to the resonant frequency of the oscillator. The ensuring optically-driven acoustic oscillation then acts back on the pulses, dividing the laser cavity into many equally-spaced time-slots within each of which optical pulses can be separately trapped. The repetition rate of the time-slots corresponds to the acoustic resonance frequency of the PCF, which can be a few GHz, and the passive locking between the acoustic wave and the pulse sequence turns out to be extremely stable, resulting in GHz-rate pulsed light sources that can work for weeks without interruption. We have been perfecting this technique over the last several years, and now can produce sub-100 fs pulses with ~2 GHz repetition rate at 1550 nm. This optoacoustic mode-locking mechanism works at any wavelength where the core is transparent, and can be used to store supramolecular pulse sequence over many hours.

BiographyMeng Pang graduated from Tianjin University (with bachelor degree) and Tsinghua University (with Master degree) in 2004 and 2007. He obtained his Ph. D degree from Hong Kong Polytechnic University in 2011. In Prof. Wei Jin’s group at PolyU, his Ph. D project was focused on hollow-core photonic crystal fibre sensors and devices. In 2011, He joined Prof. Xiaoyi Bao’s group as a postdoc fellow at University of Ottawa, Canada, where he studied random fibre lasers and nonlinear fibre optics. From 2013, he worked as a postdoc fellow in Russell’s division, Max-Planck Institute for Science of Light (MPL), Germany, where he was promoted as a team leader in 2015. His research topics at MPL include optomechanical effects in photonic crystal fibres, mode-locked fibre lasers and pulse propagation in optical fibres. Until now, he published 17 journal papers, including Nature Photonics, Optica, and Optics Letters.


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Generation of few-cycle laser pulses from the fiber system

Minglie HuTianjin University, China

Ultrafast laser sources with both high average power and high peak powers at a high repetition rate have many important applications in areas such as high-harmonic generation (HHG), micromachining, and high power optical parametric amplification. In recent years, with the development of high power fiber laser technology, the output of femtosecond fiber laser systems has reached average powers of thousands of watts and peak powers of several gigawatts. However, the pulse duration and pulse energy is limited by the accumulated nonlinear phase in the nonlinear propagation in the fiber, since it will distort the pulse shape and even break the femtosecond pulses. To enhance the performance of femtosecond fiber laser, the nonlinear phase accumulation and compensation is most important optimization factor. Pulse propagation dynamics control is the important method in femtosecond fiber system. This talk will demonstrate the few-cycle laser pulse generation in fiber system with nonlinear process optimization.

BiographyMinglie Hu received the B.S. degree in electrical engineering and Ph.D. degree in optical engineering from the School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China, in 2000 and 2005, respectively.

He is currently a Professor at Tianjin University. His current research interests include mode-locking laser oscillators and amplifiers, high power fiber lasers, nonlinear and linear propagation in the photonic crystal fibers, and microstructure optical devices. He has presided many key projects of National Natural Science Foundation of China and honored by the national science and technology process awards several times. He is author or co-author of more than 150 technical papers.

KW high-power all-solid-state lasers and their applications

Xuechun LinInstitute of Semiconductors, CAS, China

High-power all-solid-state lasers and their applications are introduced. A series of key technologies of high efficient pumping, depolarization compensation, cascade amplification, high beam quality control, and fiber coupling were broken through. We successfully achieved 7.13 kW laser with electro-optical efficiency of 18.4% and beam quality of 50.3 mm • mrad through master oscillator power amplifier. Using orthogonal dual acousto-optic Q-switching, average output power of 1023 W quasi-continuous laser with 82ns pulse width, 20 kHz repetition rate was generated. The high-power solid-state lasers were successfully used in laser welding, cladding and other fields. Cooperation with domestic brand Chery Automobile, laser welding in critical components of CVT automatic transmission has been successfully used in the new Chery Tiggo SUV. The processing effect is good.

BiographyProf. Xuechun Lin is the laboratory director of all-solid-state light source, institute of Semiconductors, Chinese academy of sciences. He is also the director of all-solid-state laser advanced manufacturing engineering technology research center. He achieved 3 kilo-watt, 4 kilo-watt, 6 kilo-watt and 8 kilo-watt laser output for the first time in China. He broke a series of key technologies of industrial high-power solid-state lasers and developed a variety of high power all-solid-state laser products and realized their industrial applications, which promoted the high-power all-solid-state lasers applied in industry. He has undertaken many 863 key projects, 973 projects, and instrument developing projects of the Chinese Academy of Sciences. He has been invited as special speaker at the international laser and laser processing conferences for many times. He has published more than 80 research papers and applied 100 patents.


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CIOP2018-2018-000035Depolarization degree of picosecond radially polarized beam induced by non-radially symmetrical pumping during power amplificationCe Yang, Hongpan Peng, Meng Chen ｜ Beijing University of Technology, ChinaDuring the double-rod Nd:YAG power amplification process, the depolarization of picosecond radially polarized beam induced by non-radially symmetrical pumping was theoretically analyzed in detail. The depolarization degree was 6.73% measured by experiments.

CIOP2018-2018-000412Propagation dynamics of nondiffracting vortex beams in a chiral mediumYuanfei Hui, Zhiwei Cui, Yongxu Lib, Pan Song ｜ Xidian University, ChinaThis work investigated the propagation and dynamical characteristics of nondiffracting vortex beams in a chiral medium. First of all, based on the ABCD transfer matrix and Collins formula, the analytical expressions of the complex amplitude of the Bessel-Gaussian (BG) beam in a chiral medium are derived. By introducing vector potential in the Lorentz gauge, the electromagnetic field components of the BG beam are determined under the paraxial approximation. Then the propagation of the BG beam in a chiral medium is examined by numerical calculations. Results show that BG beams split into the left circularly polarized (LCP) beam and the right circularly polarized (RCP) beam with different propagation trajectories. Finally, the dynamical characteristics, including the energy, momentum, spin, and orbital angular momentum (AM), of BG beams in a chiral medium are also simulated and discussed in detail. This study is expected to provide a deeper insight into the interaction of structured light beams with chiral medium.

CIOP2018-2018-000067Analysis of assembly mechanical characteristics for KDP frequency conversion crystalsTianye Liu1, Guoqing Pei2, Hui Wang1 ｜ 1 Tsinghua University, China; 2 Research Center of Laser Fusion, China Academy of Engineering Physics, ChinaFocusing on the surface figure deformation limitation under specific installation process of KDP crystals, an effective prediction methodology and measurement experiments are proposed in order to control the surface distortion during assembly.

CIOP2018-2018-000119Experiment study of wide range tunable femto-nano joule laser pulse output with flat top profileYunfeng Chen, Jianguo Xin ｜ Beijing Institute of Technolgy, ChinaIn this paper, a technique of producing wide tunable range of femto-joule to nano-joule pulse energy and flat top profile is presented.

CIOP2018-2018-000149Controllable mode-locking of multimode thulium fiber lasersHuang Chao ｜ Shanghai Jiao Tong University, ChinaNonlinear dynamics of spatiotemporal solitons in multimode fibers.

Oral Talks


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CIOP2018-2018-000270How to Amplify a Laguerre-Gaussian ModeXinyuan Fang1, Haocheng Yang1, Yong Zhang1, Min Xiao1,2 ｜ 1 Nanjing University, China; 2 University of Arkansas, USAWe theoretically investigate the nonlinear optical parametric amplification (OPA) process of a Laguerre-Gaussian (LG) mode. The optimal parameters are analyzed to achieve efficient gain without lowering the purity of the incident LG mode.

CIOP2018-2018-000341Passively Q-switched Ho3+/Pr3+ codoped fluoride fiber laser at 2.87 μm using antimoneneHongyu Luo1, Jianfeng Li1, Xiangling Tian2, Jianrong Qiu2, Yong Liu1 ｜ 1 University of Electronic Science and Technology of China, China;2 South China University of Technology, ChinaWe report a passively Q-switched Ho3+/Pr3+ codoped fluoride fiber laser at 2.87 μm using antimonene as the saturable absorber, for the first time. It indicates that antimonene is a promising mid-infrared nonlinear material.

CIOP2018-2018-000163Generating flat-top Laser Pulses with a Fiber-Loop Time LensHongjing Xiao ｜ Shanghai Jiao Tong University, ChinaResearch on STUD Pulse Generated by Direct Phase Modulation

CIOP2018-2018-000230Sub-200 fs soliton mode-locked fiber laser based on bismuthene saturable absorberBo Guo ｜ Harbin Engineering University, ChinaHere, we demonstrate a sub-200 fs soliton mode-locked erbium-doped fiber laser using a microfiber-based bismuthene saturable absorber for the first time, to the best of our knowledge.

CIOP2018-2018-000329Ultra-wide and nearly flat-top gain spectrum in asymmetric quantum-well structure for InGaAs tunable lasersQ-N Yu1, X LI2, M Zheng1, W Lu1, X Zhang2, J Wu1 ｜ 1 Beihang University, China; 2 Changchun Institute of Optics, Fine Mechanics and Physics, CAS, ChinaIn this paper, the gain spectrum with quasi-rectangular feature and ultra-widely bandwidth (100nm) was obtained in asymmetrical InGaAs structure. The asymmetrical structure may achieve tunable lasers with extremely-wide tuning spectrum and nearly uniform power output

CIOP2018-2018-000411All-fiber mode-locked Tm fiber laser with a stretched graded-index multimode optical fiber as a saturable absorberHuanhuan Li, Can Li, Junjie Zhang, Shiqing Xu ｜ China JiLiang Universiy, ChinaAn all-fiber mode-locked Tm fiber laser using a stretched single mode- graded-index multimode-single mode fiber (SMF-GIMF-SMF) structure as a saturable absorber based on the nonlinear multimode interference is demonstrated.

CIOP2018-2018-000269Performance of active pulse shaping of high power multi-pass ring laser amplifierJiangtao Guo1,2,3, Jiangfeng Wang1,2,Gang Xia1,2,3, Wei Fan1,2, Zunqi Lin1,2 ｜ 1 Shanghai Institute of Optics and Fine Mechanics, CAS, China; 2 China Academy of Engineering Physics, CAS, China; 3 University of Chinese Academy of Sciences, ChinaThe arbitrary pulse shaping for a high power, joules class, and multi-pass ring Nd: glass laser amplifier system with nanosecond pulses have been demonstrated based on the direct calculation method.


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CIOP2018-2018-000359Air-cooling 60 W Tm:fiber laser and its applications on transparent plastics processingE.C. Ji1, b, Y. Yao1, S. Lu1,2, Y.J. Huang2, Q. T. Lue2｜1 Harbin Institute of Technology, China; 2 Han’s Laser Technology Industry Group Co., Ltd, ChinaWe demonstrate the first 60 W Tm3+-doped all-fiber laser with compact air-cooling thermal management way at 1945 nm. Meanwhile, its direct bonding applications on kinds of transparent plastics are presented.

CIOP2018-2018-000362Study on the Killing Effect of mPDT on Colorectal Cancer and its MechanismXiafei Shi1, Wendong Jin1, Hao Gao2, Weichao Liu1, Hui Ma3, Huijuan Yin1, Yingxin Li1 ｜ 1 Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, China; 2 Tianjin Union Medical Center, China; 3 Tianjin Medical University General Hospital, ChinaMetronomic photodynamic therapy (mPDT) has emerged as an attractive treatment for the selective destruction of tumor cells by induction of apoptosis. we firstly used Mpdt for the treatment of colorectal cancer (CRC) and compared its effects with acute photodynamic therapy (aPDT) on human SW837 colorectal cancer (CRC) cells.

CIOP2018-2018-000141High-power VCSEL side pumped 2° wedge angle Nd:YAG repetition rate 1kHz four-pulses sequence picosecond regenerative amplifierCe Yang, Meng Chen ｜ Beijing University of Technology, ChinaHigh-power outputable four-pulse sequence picosecond regenerative amplifier with the average power of 9.5 W and beam quality M2 factor of 1.16.

CIOP2018-2018-000409Dynamic computer-generated nonlinear-optical holograms in non-collinear second harmonic generation processHaigang Liu1, Xiaohui Zhao2, Hui Li1, Yuanlin Zheng1, Xianfeng Chen1 ｜ 1 Shanghai Jiao Tong University, China; 2 Shanghai Institute of Laser Plasma, ChinaWe realize dynamic computer-generated nonlinear-optical holograms in non-collinear second harmonic generation process, which only one infrared beam is modulated. Arbitrary patterns both in fundamental-frequency and second harmonic waveband can be generated at the same time.

CIOP2018-2018-000394High spectral power density supercontinuum generated by two femtosecond laser beams interference in fused silicaDongwei Li1, Lanzhi Zhang1, TingtingXi2, JunweiChang1, Zuoqiang Hao1 ｜ 1 Changchun University of Science and Technology, China; 2 University of Chinese Academy of Sciences, ChinaHigh spectral power density supercontinuum(SC) is generated from filamentation in fused silica by using two femtosecond laser beams interference. The method provides an alternative approach to generate high spectral power femtosecond SC emission.


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Invited Talks

Superior Optical Properties of Single Perovskite Nanocrystals

Xiaoyong WangNanjing University, China

Ever since the first synthesis of semiconductor perovskite nanocrystals (NCs) of cesium lead halides in 2015, they have attracted a lot of research interests due to the size- and composition-dependent emission colors from the quantum confinement effect. At the single-particle level, the quantum-emitter nature of perovskite NCs have been confirmed from the single-photon emission measurements. Here we show that, at room temperature and with low-power excitation, nonblinking photoluminescence (PL) is easily achieved in single perovskite CsPbI3 (cesium lead iodide) NCs synthesized from a facile colloidal approach. With high-power excitation, PL blinking is triggered in single CsPbI3 NCs by the photo-ionization effect that creates two types of charged excitons with opposite signs. The “grey” intensity level in the PL blinking time trace is related to the charged exciton with Auger-mediated weak fluorescence. Auger recombination in the other type of charged exciton is nearly eliminated so that its fluorescent photons contribute to the blinking “on” intensity level with a PL lifetime almost twice shorter than that of the neutral exciton. At cryogenic temperature and with low-power excitation, a resolution-limited PL linewidth of ~200 μeV is measured for single CsPbI3 NCs without the spectral diffusion effect. Due to the suppressions of PL blinking, spectral diffusion and dark-exciton emission effects, bright-exciton fine structure splittings of single excitons and optical emissions from neutral and charged biexcitons can be further demonstrated in single CsPbI3 NCs.

BiographyDr. Wang obtained his bachelor and master degrees of optical engineering from Tianjin University, China and his PhD degree in physics from University of Arkansas at Fayetteville, USA. He took postdoctoral positions in the physics department of the University of Texas at Austin and then in the chemistry department of the University of Rochester. He is currently a full professor and chair of the department of optical science in the school of physics at Nanjing University, China. Dr. Wang’s current research is focused on the optical studies of semiconductor nano-materials such as quantum dots, nanocrystals and carbon nanotubes, with the single-particle and ultrafast spectroscopic techniques.

Experimental two-dimensional quantum walk on a photonic chip

Xianmin Jin Shanghai Jiao Tong University, China

Quantum walks, in virtue of the coherent superposition and quantum interference, have exponential superiority over their classical counterpart in applications of quantum searching and quantum simulation. The quantum enhanced power is highly related to the state space of quantum walks, which can be expanded by enlarging the photon number and/or the dimensions of the evolution network, but the former is considerably challenging due to probabilistic generation of single photons and multiplicative loss. We demonstrate a two-dimensional continuous-time quantum walk by using the external geometry of photonic waveguide arrays, rather than the inner degree of freedoms of photons. Using femtosecond laser direct writing, we construct a large-scale three-dimensional structure that forms a two-dimensional lattice with up to 49 × 49 nodes on a photonic chip. We demonstrate spatial two-dimensional quantum walks using heralded single photons and single photon–level imaging. We analyze the quantum transport properties via observing the ballistic evolution pattern and the variance profile, which agree well with simulation results. We further reveal the transient nature that is the unique feature for quantum walks of beyond one dimension. An architecture that allows a quantum walk to freely evolve in all directions and at a large scale, combining with defect and disorder control, may bring up powerful and versatile quantum walk machines for classically intractable problems.



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BiographyXianmin Jin is a Distinguished Researcher in the Department of Physics and Astronomy at Shanghai Jiao Tong University (SJTU). He graduated from University of Science and Technology of China (USTC) with a PhD in Physics in 2008. After two-year postdoctoral research in Hefei National Laboratory for Physical Sciences at the Microscale he joined the Clarendon Laboratory and Department of Physics at the University of Oxford as postdoctoral associate as well as a joint research fellow with National University of Singapore. He was awarded Marie Curie Fellow by European Commission in 2012, and was elected Wolfson College Fellow of University of Oxford in 2013. He started establishing the Laboratory of Integrated Photonics and Quantum Information in SJTU in 2013 and joined SJTU as a full-time PI in 2014.

Distributed superconducting nanowire detector for single-photon imaging

Qingyuan ZhaoNanjing University, China

Conventionally, a superconducting nanowire single-photon detector (SNSPD) is usually modelled as a lumped inductor in series with a time-varying resistor induced by a photon absorption. Our recent experimental results suggest that, due to the high kinetic inductance, the electrical length of an ultrathin nanowire is reduced by about two orders of magnitude shorter than its geometrical length. Therefore, for an SNSPD made of a meandered nanowire, whose total length is hundreds of micrometers, its electrical length becomes compatible to the effective wavelength of interested frequencies. In other words, a superconducting nanowire can be taken as a distributed transmission line. By designing a superconducting nanowire into a distributed detector. photon-detection pulses are guided in the nanowire and enable the readout of the position and time of photon-absorption events from the arrival times of the detection pulses at the nanowire’s two ends. Experimentally, the velocity of pulse propagation was slowed down to ∼2% of the speed of light in free space. In a 19.7 mm long nanowire that meandered across an area of 286 × 193 μm2, ∼590 effective pixels were resolved while a temporal resolution of 50 ps (full width at half maximum) was achieved simultaneously. Given the reduced requirements for readout lines, the nanowire imager presents a scalable approach for high-resolution photon imaging in space and time. The distributed features in a superconducting nanowire also implies that the performance of superconducting nanowire single photon detectors can be further improved with manipulating its local electromagnetic environment.

BiographyQing-Yuan Zhao is employed as a professor of Electrical Engineering at Nanjing University, China, School of Electronic Science and Engineering. He received his Bachelor degree and Ph.D. degree in Department of Electronic Science and Engineering in Nanjing University in 2008 and 2014, respectively. During his PhD period, he studied in MIT as a visiting student from 2011 to 2013. From 2014 to 2017, he returned back to MIT and employed as a postdoctoral associate. After completing his research at MIT, he joined in Nanjing University. His research interest includes single-photon detectors/imagers, fiber sensing, optical communications, superconducting digital circuits and microwave devices.

Superconducting Nanowire Single Photon Detector for Quantum Information

Lixing YouShanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, China

As a new single photon detector (SPD), Superconducting nanowire single photon detector (SNSPD) has been one of the most important SPDs since it surpasses the semiconducting SPDs with many advantages, such as high detection efficiency, low dark count rate, low timing jitter, higher counting speed, wide spectrum and free-running. Now you may buy the commercial SNSPDs including the cryogenic system from a few start-up companies in the world. I will present the latest and interesting results of SNSPDs developed in SIMIT, CAS and the applications. (1) We fabricated NbN based SNSPD for the wavelength of 1550 nm which presented a record system DE over 90% at 2.1 K at the dark count rate of 10 Hz and the jitter of 79 ps; (2) By suppressing the thermal radiation of the fiber by two types of low-temperature filters, we produced SNSPDs with ultra low dark counts. The best record is 80% at DCR of 1 Hz for 1550 nm; (3) We invented micro-fiber coupled SNSPD, which reached SDE of 50% and 20% at incident wavelengths of 1064 and 1550 nm; (4) we demonstrate a SNSPD system using a hybrid cryocooler compatible with space applications. This SNSPD system presents a maximum SDE of over 50% and a timing jitter of 48 ps; (5) We present our SNSPDs’ applications in quantum information (QKD, quantum simulation etc).


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BiographyLixing YOU received the B.S., M.S. and Ph.D. degrees in physics from Nanjing University, China, in 1997, 2001 and 2003 respectively. From Apr. 2000 to Mar. 2001, he was a research student with the Research Institute of Electronics and Communication, Tohoku University, Japan. From Nov. 2003 to Oct. 2005, he was a Post-Doctoral Researcher with the Department of Microtechnology and Nanoscience, Chalmers University of Technology, Sweden. From Nov. 2005 to Jun. 2006, he was a Post-Doctoral Researcher with the Condensed Matter Physics and Devices Group, University of Twente, the Netherlands. From Sept. 2006 to Aug. 2007, he was a Guest Researcher with the Electromagnetics Division, National Institute of Standards and Technology, USA. From Sept. 2015 to Feb. 2016, he was a Senior Visiting Scholar with University of California, Berkeley. Since Sept. 2007, he has been a research professor in Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China. His current research is related to superconducting nanowire single photon detection and its applications. He has published over 100 papers on international peer-review journals. He is the editor board member of “Scientific Reports” and advisory board member of “Superconductor Science and Technology”. Besides, he is a member of WG14 in IEC-TC 90, the associate editor of IEEE CSC Superconductivity News Forum, and international board member for International workshop of superconducting sensors and detectors (IWSSD).

Superconductor nanowire detector: from single-pixel to array

Labao ZhangNanjing University, China

Superconducting nanowire single-photon detector (SNSPD) is a photoelectric detection technology with ultra-sensitivity, low noise, and high time resolution and operates in the run-free mode. It is ideal for the application of photon flight time over a considerable distance, such as laser ranging of targets in space. In this study, we developed a SNSPD array, which was applied to a laser ranging system equipped with a 1.2-m optical telescope and a pulsed laser (1064 nm, 40 W) with a repetition rate of 1 kHz. We successfully measured many cooperative targets and non-cooperative targets, ranging from several hundred kilometers to several tens of mega meters, such as satellites (Ajisai, LARES, GLONASS, beaconc, HY2A, cryostats) and space debris. A theoretical analysis of the mean echo rate for the typical targets indicated that the laser ranging system based on this SNSPD array can range satellites from the low Earth orbit to the geostationary earth orbit and space debris at a 1000-km distance. Furthermore, in the future, the improved array SNSPD architecture is expected to make it possible to track moving targets simultaneously combined with the servo-drive system of an optical telescope.

BiographyDr. Labao Zhang is an associate professor of Nanjing University after he got his PHD in 2010 at the same university. He and his colleagues in NJU developed superconducting nanowire single photon detectors (SNSPDs) at infrared wavelength independently, which were applied in Lidar and QKD respectively. With the SNSPDs, he pioneered the 1064 nm satellite laser ranging (SLR) for space debris. Dr. Zhang published 60 papers in peer-reviewed journals, and owned six China patents on invention. Currently, He presided over the National Key R&D Program of China for developing high speed SNSPDs.

Superconducting nanowire single-photon detectors

Xiaolong HuTianjin University, China

The high detection efficiency, low dark-count rate, and excellent timing properties of superconducting nanowire single-photon detectors (SNSPDs) have enabled applications including moon-to-earth optical communications and loop-hole-free test of Bell inequality. However, the SNSPDs in the traditional meander design are polarization-sensitive; and the timing-jitter mechanisms of SNSPDs remain elusive. In this talk, we present our recent research at Tianjin University on SNSPSDs. In particular, we have demonstrated a fractal SNSPD with high detection efficiency and low polarization sensitive. Additionally, we have uncovered two mechanisms of the timing jitter of SNSPDs, namely, vortex-crossing-induced timing jitter and spatial-inhomogeneity-induced timing jitter. We have also demonstrated SNSPDs integrated with current reservoirs, which can simultaneously achieve high detection efficiency and low timing jitter. Finally, I speak about waveguide-integrated SNSPDs that have already enabled various on-chip quantum-optic applications.


Session 9


BiographyDr. Xiaolong Hu is a professor in the School of Precision Instrument and Opto-Electronic Engineering at Tianjin University. He obtained his B. S. and M. S. from Tsinghua University in 2003 and 2006, respectively, and obtained his Ph. D. from the Massachusetts Institute of Technology in 2011. His current research focuses on superconducting nanowire single-photon detectors, quantum optics, integrated nanophotonic devices and nanofabrication. He is a member of the Optical Society of America, IEEE, and SPIE. In 2013, he was awarded OSA Outstanding Review Award; in 2015, he was selected into National 1000-Plan Program for Young Scholars in China; in 2016, he was honored as Young Talents of Science and Technology in Tianjin.

Applications of Spontaneous Four Wave Mixing on Quantum Communications

Wei ZhangTsinghua University, China

Spontaneous four wave mixing (SFWM) is an important way to develop telecom band quantum light sources, which are crucial photonic quantum devices required for quantum communications. This talk introduce our recent works on SFWM based quantum light sources, especially their applications on quantum communications. The first application is the entanglement based quantum secure direct communication (QSDC). We firstly proposed and realized a novel scheme of telecom band polarization entangled Bell state generation, which was based on SFWM in an optical fiber Sagnac loop. Then, we realized the first long-distance QSDC experiment over optical fiber, including all the functions of security test, information encoding, fiber transmission and decoding. The second application is the quantum ghost imaging over optical fibers of 50km, which was based on broadband frequency anti-correlated photon pairs generated in silicon waveguides by SFWM. In this work the frequency correlation was transformed to the correlation between the illuminating position of one photon and the arrival time of the other photon, by which quantum ghost imaging was realized in the time domain. Finally, recent field experiments of quantum teleportation and entanglement swapping over fiber cables are introduced. They were based on the quantum interference of two independent telecom band quantum light sources, which were realized by SFWM in optical fibers. These works show that SFWM based quantum light sources can be designed flexibly for various quantum communication schemes, which have great potential on quantum networks in the future.

BiographyDr. Wei Zhang received his Bachelor’s degree from Electronic Engineering Department, Tsinghua University, China in 1998 and received his Doctor’s degree on physical electronics from Institute of Information Optoelectronics, Electronic Engineering Department, Tsinghua University, China in 2003. Then, he worked there as an instructor. He was promoted to associate professor in 2007. In 2014, he became the distinguished research fellow of Electronic Engineering Department, Tsinghua University. At present, he is the vice director of the Institute of Information Optoelectronics in this department. As the undertaker or the main participator, he took 14 research projects of Chinese government and Beijing government. As the first author or the corresponding author, he has published over 70 articles in academic journals and international conferences. He is the member of Chinese optical society and Optical society of America. In recent years, his researches focused on practical quantum light sources for quantum engineering based on spontaneous four wave mixing in c(3) nonlinear waveguides and resonators and their applications on quantum communications over optical fibers.

Precision metrology using weak measurement

Lijian Zhang Nanjing University, China

Weak measurement can dramatically amplify a small effect, therefore has received increasing interest in metrology. Yet the amplification effect of weak measurement comes at the cost of a reduction in the rate at which data can be acquired, due to the requirement to select almost orthogonal pre- and post-selected states. Therefore whether weak measurement can really enhance the measurement precision or even beat the classical limit has been under debate for long time. Here we investigate two precision metrology schemes using weak measurement. The first one can be viewed as a weak measurement in the phase space. By coupling a single photon with an intense coherent beam, we demonstrate a measurement precision at the Heisenberg limit with the proper pre- and post-selection on the superposition state of the single photon. For the second scheme we study the performance of weak measurement in tracking light beam displacements with a scientific CCD. We show that, with the presence of classical noise and detector saturation that are ubiquitous in CCD arrays, weak measurement outperforms conventional measurement in terms of measurement precision. Our results foreshadow the applications of weak measurement in quantum-enhanced metrology.


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BiographyLijian received his B.S. and M. Eng. degrees at Peking University, China. He then moved to University of Oxford in UK and received his D.Phil degree in 2009. After the graduation he stayed at University of Oxford as a postdoctoral research assistant. In 2011 he joined Max-Planck Institute for Structures and Dynamics of Matter in Hamburg as a Humboldt research fellow. Since 2013 he has been a tenure-track professor at Nanjing University in China.

Quantum network and solid state memory

Chuanfeng Li University of Science and Technology of China, China

In this talk, I will first introduce the development of quantum network, including the construction of quantum nodes (operating node and storing node), interface between different quantum systems, etc. Then I will introduce our recent work on solid state memory based on rare-earth ion doped crystal, including the connection between solid state memory and other quantum systems, such as entangled photon from SPDC process and single photon from self-assembled quantum dot.

BiographyChuanfeng Li, Professor of Physics, from CAS Key Lab of Quantum Information, University of Science and Technology of China (USTC). He got his PHD in the year 1999 in USTC. Research interests are constructing quantum entanglement network (with linear optics, quantum dot, rare-earth doped crystal, trapped ion) and exploring quantum physics with quantum information technology. He has published more than 160 SCI papers cited by more than 3200 times.

Microwave to optical frequency conversion and quantum memory based on erbium doped crystal

Yuhui ChenUniversity of Otago, New Zealand

In recent years there has been spectacular progress in the development of devices based on superconducting qubits. To unfold their full potential in applications and develop a long-range communication network based on superconducting qubits, there are two key problems to overcome: the inability to send quantum states long distances and the lack a long term memory.

A device transferring microwave photons, which superconducting qubits operate on, to optical photons, which is low noise in room temperature, can enable the long distance transportation using commercial optical fibres. We demonstrate a microwave-to-optical conversion with a quantum efficiency of 1.26x10-5 using an erbium doped crystal embedded in both a microwave and an optical cavity at 4K temperature. The efficiency is improved by 6 x103 by resonant enhancements of both the pump and signal optical fields, and is seven orders of magnitude larger than previous conversion results using rare earths.

By introducing the zero-first-order-Zeeman-effect technique, we used the hyperfine structure of erbium 167 in a Y2SiO5 crystal and demonstrated a coherence time of 1.4 ms at zero magnetic field at 3.2 K.

BiographyAfter undertaking undergraduate studies at Sun Yat-sen University, China, I completed my PhD in the Institute of Physics, Chinese Academy of Sciences. Then I joined the University of Otago, New Zealand as a postdoc. I started working as a research fellow at Otago in 2017.


Session 9


Actively Spectral-Multiplexed Heralded Single Photons Source

Qiang ZhouUniversity of Electronic Science and Technology of China, China & University of Calgary, Canada

Photonic quantum information processing promises to deliver optimal security for sensitive communication, solving certain computational problems much faster than classical computers, and estimating physical parameters with significantly improved resolution. Many of these applications rely on sources of deterministic (on demand) and near-perfect single photons. Here, we propose and demonstrate an SPS based on a novel spectral multiplexing scheme in which the source requirements and the system loss are independent of the number of modes being multiplexed. The scheme is based on defining spectral modes within the broadband spectrum of an SPDC pair source and applying a feedforward frequency-shift operation on the heralded photon. We experimentally show that the single-photon character is preserved by measuring a heralded autocorrelation function less than 0.1, for the heralded photons with and without multiplexing and feed-forward control. Moreover, directly comparing the multiplexed and nonmultiplexed output we deduce that, as expected, the heralded single-photon emissions increase linearly with the number of modes. This allows compensating for the additional loss caused by the nonideal elements used for the feed-forward operation for as few as three modes. We project that by adding further modes, our approach can lead to a deterministic single-photon source.

BiographyDr. Qiang Zhou is an assistant professor at the University of Electronic Science and Technology, with research interests in quantum information technologies, quantum internet, light-matter interface, quantum devices, nonlinear optics, Nano photonics and quantum photonics. He received the B.S. degree from University of Electronic Science and Technology in Optoelectronic Information and the Ph.D. degree from Tsinghua University in Electronic Science and Technology. He was awarded the 2011-Tsinghua outstanding doctoral thesis prize for his work in fiber based quantum light source. He has authored more than 30 papers in referred journals and presented more than 10 talks in international conferences.

Transverse-mode based quantum integrated photonics

Xifeng RenUniversity of Science and Technology of China, China

Photonic integrated circuits (PICs) have attracted considerable attention owing to their small footprint, scalability, reduced power consumption and enhanced processing stability; thus, many quantum computation and quantum simulation protocols have been realized on quantum PICs. Regarding recent investigations of quantum PICs, polarization entanglement and path entanglement are usually used.

Recently, another degree of freedom, transverse-modes in a multimode optical waveguide, was introduced. This degree of freedom is very attractive because the orthogonal transverse-modes constitute a high-dimensional Hilbert space, which makes high-efficiency quantum logic gates and noise-resilient communication possible.

Here, we propose and realize an on-chip transverse-mode entangled photon source via spontaneous four-wave mixing (SFWM) processes in a multimode silicon waveguide. The transverse-mode entangled photon pairs were produced and experimentally verified with a bandwidth of . By adjusting the pump light, a maximally transverse-mode entangled Bell state with a fidelity of 0.92 was produced.

We also demonstrate the coherent conversion of a photonic quantum state between path, polarization and transverse waveguide-mode degrees of freedom on a single chip. The preservation of quantum coherence in these conversion processes is proven by single-photon and two-photon quantum interference using a fibre beam splitter or on-chip beam splitters. These results provide us with the ability to control and convert multiple degrees of freedom of photons for quantum photonic integrated circuit-based quantum information process.


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BiographyXi-Feng Ren received a bachelor’s and Ph.D. degree from University of Science and Technology of China in 2001 and 2006. He worked as a post-doctor in key laboratory of quantum information, University of Science and Technology of China form 2006 to 2008, and joined the department of optics and optical engineering at USTC as an Associate Professor in 2008. He visited Prude University as a visiting scholar from 2012 to 2013. His research area is quantum nanophotonics, including quantum photonic integrated circuits, quantum plasmonics, quantum optics, etc. So far, he has published over 60 scientific papers in the above fields.

Photonic Quantum Chips based on Lithium Niobate and Silicon

Ping Xu National University of Defense Technology, China

In bulk periodically poling LN (PPLN) crystals, the generated entangled photons can been controlled with full degrees of freedom offered by the design of domain structures in crystals, resulting in new types of photonic entanglement and new quantum effects such as two-photon focusing, active quantum beam-splitting. By further integrating PPLN into waveguide circuits, we demonstrate the on-chip generation and manipulation of entangled photon pairs, resulting continuous morphing from two-photon separated state to bunched state, highly integrated polarization entanglement, heralded photon-number state etc.. The LN chips show advantages in low-energy cost, flexible high-flux photon sources, fast and efficient electro-optic (EO) modulators as well as reconfigurable waveguide circuits. For SOI chips, they are naturally compatible with CMOS fabrication technology so the integration density can be very high. We developed a high-density SOI chip for studying the quantum walk and quantum simulation. Also the wavelength and efficiency of four-wave-mixing SOI chip are improved by introducing other structures or materials. The key parameters of two types of material platforms are listed and compared in the end of the talk.

BiographyProf. Ping Xu’s research interests include quantum optics and quantum computing as well as developing quantum chips. She developed the first lithium niobate quantum photonic chip and demonstrated the on-chip generation and manipulation of entangled photons, paving the way to the fully integrated quantum chip. She published 62 SCI papers including 13 Phys. Rev. A papers, 4 Phys. Rev. Lett. and 2 Nature Commun. Papers. She was awarded the Excellent Youth Foundation Winner of National Nature Science Foundation of China, the Annual Ten Major Advances in Chinese Optics, the New Century Talent of China Ministry of Eucation, the Second Order of Yutai Rao award for foundation optics as well as the author of National 100 Excellent Doctoral Dissertation of China. The education and work experience are listed as follows: 2017.01- Professor National University of Defense technology 2013.12-2016.12 Professor Nanjing University 2011/01-2013/11 Associate Professor Nanjing University 2008/01-2010/12 Assistant Professor Nanjing University 2002/09-2007/12 Ph.D Nanjing University 2005/10-2006/07 Visiting Student University of Maryland, Baltimore County 1998/09-2002/07 Bachelor Degree Nanjing University

Recent development on quantum random number generation

Xiongfeng Ma Tsinghua University, China

Quantum random numbers, exploiting the unpredictability nature of quantum mechanics, play important roles in many applications, especially in cryptography. Genuine randomness from the measurement of a quantum system reveals the inherent nature of quantumness — coherence, an important feature that differentiates quantum mechanics from classical physics. The generation of genuine randomness is generally considered impossible with only classical means.

True randomness can be generated from any quantum process that breaks coherent superposition of states. Due to the availability of high quality optical components and the potential of chip-size integration, most of today’s practical quantum random number generators (QRNGs) are implemented in photonic systems. Various implementations of optical QRNGs are based on quantum processes ranging from shot noise of coherent detection to phase fluctuations of spontaneous emission.


Session 9


On the other hand, based on the degree of trustworthiness on devices, QRNGs can be grouped into three categories. The first category, practical QRNG, is built on fully trusted and calibrated devices and typically can generate randomness at a high speed by properly modeling the devices. The second category is self-testing QRNG, where verifiable randomness can be generated without trusting the actual implementation. The third category, semi-self-testing QRNG, is an intermediate category which provides a tradeoff between the trustworthiness on the devices and the random number generation performance.

In this talk, I will mainly introduce the recent development in these three aspects, including the new mechanisms which improves the generation rate by several orders of magnitude, new protocols with semi-self-testing or self-testing ideas which make the output randomness secure with less assumptions, and new implementations which makes the random number generator more compact and cheaper.

BiographyXiongfeng Ma’s primary fields of research are quantum information and quantum optics, including practical quantum key distribution with optical implementations, quantum network, self-testing quantum key distribution protocols, small-scale quantum computing, design of quantum random number generators, coherence, and entanglement. Xiongfeng obtained his BSc degree at Peking University in 2003 and his PhD degree in 2008 at the University of Toronto. Afterwards, he did postdoc and visiting researcher positions in the Institute of Quantum Computing at the University of Waterloo, the University of Toronto, and the University of Leeds. In 2012, Xiongfeng joined the Institute for Interdisciplinary Information Sciences at the Tsinghua University with the support of 1000 youth program.

Quantum key distribution devices based on hybrid silicon/LiNbO3 platform

Xinlun CaiSun Yat-sen University, China

The rules of quantum mechanics enable applications in information technologies that are inherently more powerful than their classical counterparts. Quantum key distribution now makes it possible to transmit information with unconditional security. The next generation of quantum key distribution requires sophisticated photonic integrated devices. This talk will review the recent efforts in developing the high-speed silicon/LiNbO3 devices in Sun Yat-sen University.

BiographySince 2014 Professor Sun Yat-sen University, Guagnzhou, China2012-2014 Research Assistant School of Physics, University of Bristol, UK2012 Doctoral degree in Electrical and Electronics, University of Bristol, UK2004 Bachelor of Optoelectronics, Huazhong University of Science and Technology, Hubei, China

Measurement-Device-Independent Quantum Secure Direct Communication with Single Photons and Entangled Photon Pairs

Guilu LongTsinghua University, China

Quantum secure direct communication is the technology to transmit secret information directly through a quantum channel without neither key nor ciphertext. An eavesdropper will not only be found on-site, but also obtains mere random numbers. It has even fundamentally changed the structure of secure communication. Here we report the first measurement-device-independent quantum secure direct communication protocol with entangled photon pairs and single photons. In this protocol, the measurement is performed by an untrusted third party. Hence it eliminates the security loopholes associated with the measurement devices. In addition, the measurement-device-independent technique doubles the communication distance as both the sender and receiver send their qubits to the third party in the middle between them.

BiographyTBA


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Amplification and squeezing of Schrödinger cat state with an optical parametric amplifier

Xiaolong SuShanxi University, China

We present experimental demonstration of the deterministic amplification of optical cat states, in which only an optical parametric amplifier (OPA) is utilized. In the experiment, the initial optical cat state is generated by photon subtraction from a nearly pure squeezed vacuum state with 3 dB squeezing produced by OPA1. A small fraction (5%) of the squeezed vacuum state is sent to photon counting, which is also used as the trigger signal for the generation of initial cat state. Then the initial cat state is seeded into OPA2 for amplification. By locking the relative phase between the pump optical field of OPA2 and the seeded cat state to zero (π) to make OPA2 operate at the amplification (deamplification) status, i.e., squeezing an optical cat state along the squeezing (anti-squeezing) direction of the initial squeezed state, the input cat state is amplified (squeezed) deterministically. The advantages of this method are that the cat state is amplified and squeezed deterministically, which is different from previous probabilistic amplification and squeezing scheme.

BiographyXiaolong Su is currently a professor at State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-electronics, Shanxi University. His research interest is focused on quantum information with continuous variables and hybrid quantum information processing. He has published about 50 papers on scientific journals, including Nature Communications, Phys. Rev. Lett., et. al. He is the winner of National Science Fund for Excellent Young Scholars in 2015 and Youth Sanjin Scholar in Shanxi Provience.


Session 9


CIOP2018-2017-000166 Achieving strong coupling within the nanogap based on whispering gallery modes Qi Zhang1; Juanjuan Ren1; Xueke Duan1; He Hao1; Qihuang Gong12; Ying Gu12 ｜ 1 Tsinghua University, China 2 Shanxi University, ChinaStrong coupling in cavity quantum electrodynamics is of great interest to researchers for it has an enormous applications such as single photon sources, optical switches and nano-antennas. Because of the existence of the cavity loss and the spontaneous emission, the condition of strong coupling region is usually difficult to achieve. Here we demonstrate theoretically a hybrid nanotoroid-nanowire structure to enhance the coupling coefficient between atoms and electromagnetic field in the cavity. The method can combine the advantages of strong local field enhancement in the nanogap with high quality factor of whispering gallery modes. Coupling coefficient in the gap can achieve several times of that without nanowire and be modulated in a wide range. Meanwhile, the cavity loss and the spontaneous emission of the emitter remain at a relatively low level. This method to control the light-matter interaction might hold promise quantum optics, nanophotonics and on-chip quantum information.

CIOP2018-2017-000094 Temporal ghost imaging over long-distance optical fibers Xin Yao; Xu Liu; Wei Zhang; Yidong Huang ｜ Tsinghua University, ChinaTemporal ghost imaging is demonstrated over 50-km optical fibers by two ways, based on quantum and thermal light sources, respectively. It provides a novel way for information transmission over fiber link by single photons.

CIOP2018-2017-000092 Dispersive optics quantum key distribution with quantum light sources based on silicon waveguides Xu Liu; Xin Yao; Wei Zhang; Yidong Huang ｜ Tsinghua University, ChinaUtilizing energy-time entangled photon pairs generated in a silicon waveguide, dispersive optics quantum key distribution is realized over optical fibers of 20 km, with a raw key rate of 50kbps and an error rate of 1.7%.

CIOP2018-2017-000143 Experimental test of error-disturbance uncertainty relation for continuous variable system Yang Liu1; Zhihao Ma2; Haijun Kang1; Dongmei Han1; Xiaolong Su1; Changde Xie1; Kunchi Peng1 ｜ 1 Shanxi University, China; 2 Shanghai Jiao Tong University, ChinaUncertainty relation is a fundamental principle in quantum mechanics. We experimentally test the error-disturbance uncertainty relation (EDR) by using a continuous-variable Gaussian Einstein-Podolsky-Rosen entangled state.

CIOP2018-2017-000357 Directly generating a three-dimensional maximally entangled state Shilong Liu; Zhi-Yuan Zhou; Guang-Can Guo; Bao-Sen Shi ｜ University of Science and Technology of China, ChinaHere, we demonstrate a method to directly generate a maximally entangled state of two down-converted photons in orbital angular momentum degree of freedom.

Oral Talks


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CIOP2018-2017-000129 Quantum secure temporal imaging Xin Yao; Xu Liu; Wei Zhang; Yidong Huang ｜ Tsinghua University, ChinaWe propose and experimentally demonstrate a scheme of quantum secure temporal imaging based on time-energy entanglement. It realizes information transmission over optical fibers by quantum temporal correlation, and is secured by monitoring nonlocal dispersion cancellation.

CIOP2018-2017-000225 Fiber-based shot-noise-limited phase tracking using adaptive homodyne detection Lidan Zhang; Kaimin Zheng; Fang Liu; Wei Zhao; Lei Tang; Zeyu Kuang; Lijian Zhang; Yong Zhang; Min Xiao ｜

Nanjing University, ChinaWe demonstrate the power of real-time feedback in homodyne detection of a large angular range phase and the adaptive technique is applicable to shot-noise-limited phase tracking measurement in fiber system.

CIOP2018-2017-000314 Non-Perturbation Calculation For the Dynamic Problem of Quantum Many-Body Systems Xueying Liu1; Xuezao Ren1; Kelin Wang2 ｜ 1 Southwest University of Science and Technology, China; 2 University of Science and Technology of China, ChinaWe propose a new method to directly solve the dynamical problem of quantum many-body systems with the time-independent Hamiltonian instead of solving the time-independent Schrodinger equations which is different from the perturbation theory based on Fock state.


Session 10


Invited Talks

The art of femtosecond laser writing

Peter KazanskyUniversity of Southampton, UK

Interaction of intense ultrashort light pulses with glass reveals new properties and phenomena, which challenge common beliefs in optics. Demonstrations of 3D nanograting formation and related self-assembled form birefringence uncover new science and applications including flat optics elements exploiting the Pancharatnam-Berry phase. The S-waveplate (Southampton-Super-Structured-waveplate) is one of the examples of such elements, which can be used for creating axially symmetric polarization state and optical vortexes. The applications of S-waveplates range from material processing to microscopy and optical trapping. Two independent parameters describing self-assembled form birefringence in quartz glass, the slow axis orientation and the strength of retardance, are also explored for the optical encoding of information in addition to three spatial coordinates. The data optically encoded into 5D is successfully retrieved by quantitative birefringence measurements. The storage allows unprecedented parameters including hundreds of terabytes per disc data capacity and thermal stability up to 1000°. The demonstrated recording of the first digital documents, including the eternal copy of King James Bible, which will survive the human race, is the vital step towards an eternal archive. These and more recent demonstrations of ultrafast laser calligraphy and anisotropic photosensitivity in glasses are reviewed.

BiographyPeter G. Kazansky studied physics in Moscow State University and received Ph.D. under supervision of Nobel Laureate for the invention of laser A.M. Prokhorov from the General Physics Institute in 1985. He was awarded the Leninskii Komsomol Prize in 1989 for the pioneering work on “Circular photogalvanic effect in crystals”. From 1989 to 1993 he led a group in the GPI, which unraveled the mystery of light-induced frequency doubling in glass. In 1992 he joined the ORC at the University of Southampton where since 2001 he is a professor pursuing his interests in new optical materials and phenomena. More recently he pioneered the field of ultrafast laser nanostructuring in glass leading to invention of “5D memory crystal,” which holds a Guinness world record for the most durable data storage medium. From 2014 he is also a director of the International Centre of Laser Technologies in Mendeleev University of Technical Technologies. He served as Vice-Chair of the Committee on Glasses for Optoelectronics of International Commission on Glass and is a Fellow of Optical Society of America.

Laser Bionic Micro/nanofabrication

Feng Chen Xi’an Jiao Tong University, China

Biological micro/nano-structures all comprise the goals for the next-generation smart artificial materials and devices. This presentation summarizes the recent progress in the development of bioinspired smart structures via femtosecond laser micro/nanofabrication, with a focus on controllable, biomimetic, and switchable wetting surfaces, as well as their applications in biology, microfluidic, and industry, all of which demonstrate the ability of laser microfabrication in producing various multiscale structures and its adaptation in a great variety of materials. The current challenges and future research prospects of this rapidly developing field are also being discussed.

BiographyFeng Chen is a full professor of Xi’an Jiaotong University, where he directs the Femtosecond Laser Laboratory and has severed as deputy director of the International Joint Research Lab for Micro/Nano Manufacturing and Measurement Technologies, Ministry of Education. He had been a full Professor of Electronics Engineering at Xian Jiaotong University since 2002. From 2009 to 2010, Chen visited Nottingham university as a visiting professor. His current research interests are femtosecond laser microfabrication and Bionic Microfabrication. Dr. Chen took charge in over 30 research projects, and has published more than 200 peer-reviewed papers including Chem. Sco. Rew., Adv. Funct. Mater., Adv. Mater. Interface., J.Mater.Chem.A, ACS AM&I, Soft Matter, Langmuir, JPCC, Appl. Phys. Lett., Opt. Lett., Opt. Express, JMM, etc.



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Micro welding with fs laser

Guanghua ChengXi’an Institute of Optics and Precision Mechanics, CAS, China

It is a big challenge to weld two materials with large differences in coefficients of thermal expansion and melting points. Here we report that the welding between fused silica and SiC wafer is achieved with a near infrared femtosecond laser at 800 nm. Elements are observed to have a spatial distribution gradient within the cross section of welding line, revealing that mixing and inter-diffusion of substances have occurred during laser irradiation. This is attributed to the femtosecond laser induced local phase transition and volume expansion. Through optimizing the welding parameters, pulse energy and interval of the welding lines, a shear joining strength as high as 15.1 MPa is achieved. This puts forward severe challenges for controlling the focus position particularly considering that the tightly focused Gaussian beam has a short, micron-sized Rayleigh range. Here we propose a large-focal-depth welding method to bond materials by using non-diffractive femtosecond laser Bessel beams.

BiographyGuanghua Cheng is a Professor Xi’an Institute of Optical and Precision Mechanics of CAS and Visiting Professor in Laboratoire Hubert Curien CNRS UMR 5516, France. He received his Ph.D. from Chinese Academy of Sciences with a focus on femtosecond laser and laser micromachining in 2004. His research interests include ultrafast laser machining and processing, high power solid laser technique, interaction between ultrafast laser and mater, and nonlinear optics. He is Co-Chair of The annual International Symposium on Laser Precision Microfabrication (LPM2016) and committee of the annual International Symposium on Laser Precision Microfabrication. He has published over 100 publications in refereed journals and conference proceeding.

State-recycling and time-resolved imaging in topological photonic lattices

Sebabrata MukherjeeHeriot-Watt University, UK

Photonic lattices – periodic arrays of coupled optical waveguides - are powerful experimental platforms for simulating a range of phenomena, including topological phases. While probing dynamics is possible in these settings, by reinterpreting the propagation distance as “time”, accessing long timescales constitutes a severe experimental challenge. We overcome this limitation by placing the photonic lattice in a cavity, which allows the optical state to evolve through the lattice multiple times. The accompanying detection method, which exploits a multi-pixel single-photon avalanche detector (SPAD) array, offers quasi-real time-resolved measurements after each round trip. In this talk, I will discuss ultrafast laser inscription of photonic lattices and time-resolved detection of the robust topological edge modes.

BiographySeba was awarded the BSc in Physics from the University of Calcutta in 2010 and the MSc in Physics from the Indian Institute of Technology Delhi in 2012. He undertook his PhD at Heriot-Watt University (HWU) in the area of experimental simulation of solid-state phenomena in photonic structures and was subsequently awarded “The 2016 MacFarlane Prize” for the most outstanding contribution to the research at the University. Currently, he is a postdoctoral researcher at HWU, and his research interest includes micro-optic device fabrication, localization phenomena in waveguide arrays and analogous time-periodic driving in photonic lattices.


Session 10


Recording, erasing and rewriting of nanoripples on metal surfaces by ultrashort laser pulses

Quan-Zhong ZhaoShanghai Institute of Optics and Fine Mechanics, CAS, China

We observed the formation of nanoripples on metal tungsten surface by two consecutive series of femtosecond laser pulses. First, we exposed the sample to a series of pulses to form ripples along the direction perpendicular to the polarization. Then, we applied a second series of pulses with same pulse energy while with polarization orthogonal to the first series. With the increasing of number of pulses gradually, a two-dimensional grid can be formed and eventually the original ripples were washed out and at the same place new ripples were formed with the orientation now perpendicular to the polarization of the second group of pulses. The evolution of recording, erasing, and rewriting is also simulated which is in accordance with the experimental results. The potential applications of recorded nanoripples are explored from several aspects. For example, tuning of frictional properties, wetting properties and catalytic properties of different sample surfaces were achieved.

BiographyDr. Quan-Zhong Zhao received his B.S. & M.S. degrees from Northwestern Polytechnical University, China in 1997 and 2000, respectively. He obtained his Ph.D. in Optical Engineering from Chinese Academy of Sciences, China in 2003. He worked as a postdoctoral researcher in Max-Planck Institute for the Science of Light, Germany, from 2005 to 2009, and he became a full professor in Shanghai Institute of Optics and Fine Mechanics, CAS in 2009. His research interest includes laser-based micro-/nanoprocessing, structuring of versatile materials, functional photonic materials and devices, physics of ultrashort pulsed laser interaction with matter, and fundamental research with potential commercialization. He has authored and co-authored two book chapters and more than 100 journal papers and 20 conference papers.

Ultrafast laser inducing nanostructures for unique functions and novel applications

Minlin ZhongTsinghua University, China

Nanomaterials have unique four nano-effects such as Interface & surface effect, small size effect, quantum size effect and macroscopic quantum tunneling effect, which are capable of endowing materials magic novel functions. After thousands of years of evolution, some plants and animals have evolved unique micro-nano structures which create marvelous functions like superhydrophobic, superhydrophilic, self-cleaning, drag reduction, reversible adhesion, anti-reflection, structural color, high sensitivity and regulation of cell behaviors. To understand the nature secrets and then to fabricate biomimetic synthetic architectures to bring about improved functions that can even surpass those found in nature, is one of the attractive topics nowadays. Ultrafast laser is well known as a wonderful tool for micro-nano structure fabrication. Due to the diffraction limit, however, its capability to form nanostructures is somewhat limited. I will report here our focused research in recent years to induce various nanostructures, like nano-ripple, nano-cauliflower, nano-villus and nanowires in metallic engineering materials. We then explore the nanostructure functions available in nature and surpass in nature, such as superhydrophobicity, superhydrophilicity, directional wetting, self-clean, anti-reflection, structure color, and high sensitivity. I will finally report some typical applications of these functional nanostructures including self-clean surfaces, anti-icing, solar energy utilization, water splitting, lithium cell and super-capacity etc..

BiographyDr. Minlin Zhong is a tenure-check professor in School of Materials Science and Engineering at Tsinghua University and the director of the Laser Materials Processing Research Center. He is the President-Elect of the Laser Institute of America (LIA) and the past President of the International Academy of Photonics and Laser Engineering (IAPLE), the Fellows of LIA and IAPLE. He is a Senior Editor of 《Journal of Laser Applications》, Executive Editor in Chief of 《Journal of Chinese Lasers 》and editorial member of Light: Science and Applications. His research interest covers laser micro-nano fabrication, laser surface engineering and laser 3D printing. Dr. Zhong has been the PI for 19 international cooperation projects and 40 domestic projects etc. He has been active in international academic field, serving as chair or co-chair for numerous international and domestic conferences and keynote and invited presentations. He has published 300+ papers, 20+ patents and 4 book chapters.


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Direct laser writing with aberration correction

Patrick Salter University of Oxford, UK

Direct laser writing allows the fabrication of micrometer scale features in 3D inside a vast range of transparent materials. By focusing femtosecond pulse lasers inside a material, the peak focal intensity is high enough for non-linear absorption at the focus to seed a plasma, followed by avalanche ionization. The form of the resulting material modification can be strongly coupled to the shape of the laser focus, and hence influenced by optical aberrations in the system which cause focal distortion. Optical aberrations arise when there is variation of the refractive index during focusing and are commonly encountered at the surface of the workpiece. In this talk, we will explore forms of aberration commonly encountered in direct laser writing and how they affect the fabrication in different processing regimes. Techniques for correcting aberrations using adaptive optics will be described, specifically the use of liquid crystal spatial light modulators. Example applications of aberration corrected direct laser writing will be given, including fabrication of waveguides at varying depth inside glass, modifications inside optical fibre, two photon polymerization inside liquid crystal devices and processing of diamond.

BiographyPatrick Salter is a Research Fellow at the University of Oxford, UK. He holds a PhD in electrical engineering, which was focused on liquid crystal technology for display applications. His current work involves the use of advanced optical techniques in laser fabrication. He is the W.W. Spooner Junior Research Fellow at New College, Oxford.

Laser fabrication of graphene integrated devices

Baohua Jia Swinburne University of Technology, Australia

Graphene like materials have attracted unprecedented enthusiasm during the past decade due to their exceptional mechanical, thermal, optical, and electrical properties not available in conventional materials. This talk explores the optoelectronic applications of graphene like materials by using the one-step mask-free direct laser printing (DLP) method [1]. Our results have demonstrated the great potentials of two-dimensional material films as an emerging integratable platform for ultrathin, light-weight and flexible photonic and electronic devices towards all-optical communication, microscopic imaging and energy storage applications [2-4].Reference:[1] H Lin, B Jia, M Gu, Optics letters 36 (3), 406-408 (2011).[2] X. Zheng, B. Jia, X. Chen, M. Gu, Adv. Mater 26, 2699 (2014).[3] S. Fraser, X. Zheng, L. Qiu, D. Li, B. Jia, Applied Physics Letters, 107, 031112 (2015).[4] X. Zheng, B. Jia, H. Lin, L. Qiu, D. Li, M. Gu, Nature Communications, 6, 8433 (2015).

BiographyDr. Baohua Jia (PhD in 2007) is a full Professor and Research Leader at Swinburne University of Technology, Australia. She uses light to develop various functional nanostructures to effectively harness and store clean energy and boost the performance of communication devices. She is the Program Leader of Future Manufacturing Institution and the Head of Laser and Nanomaterial Interaction (LNI) Group. She has co-authored more than 200 scientific publications and delivered more than 40 invited talks at prestigious international conferences and serves multiples professional committees. She has produced several international patents, which have been licensed and commercialized by a number of international companies. Her recent awards include the Research Impact Award (2017), Young Tall Poppy Science Award (2013), L’Oréal Australia and New Zealand for Women in Science Fellowship (2012), Discovery Early Career Researcher Award (DECRA) (2012), Victoria Fellowship (2010) and Australian Postdoctoral Fellowship (2009) et. al.


Session 10


SLM-based high-efficiency 3D Femtosecond laser microfabrication for microoptical and microfluidic applications

Dong Wu University of Science and Technology of China, China

Femtosecond laser induced two-photon polymerization (TPP) has been proved to be a powerful microfabrication technique with high efficiency and quality. However, the main drawback of TPP technique is its low fabrication efficiency caused by the point-to-point raster scanning strategy, which seriously restricts its applications. In order to overcome the disadvantages, SLM-based (spatial light modulator) 2D-3D laser intensity patterns (e.g., mutlifoci or arbitrary patterns) were proposed to significantly speed up the fabrication process by serveral orders of magnitude, and has a wide range of applications in optics, micromachines, and biology, owing to its capability to dynamically update the intensity distributions in the focal plane by modifying the phase of incident light. A series of 2D-3D functional microdevices such as Damman grating, microfilter and flower-like microtube arrays were rapidly fabricated and show various functions, such as beam splitting, particles filtering and cell manipulation.

BiographyDong Wu is a professor of engineering science at University of Science and Technology of China. He obtained the fifth Chinese Thousand Youth Talents Plan. His current research interests are femtosecond laser 3D microfabrication for microoptical devices, microfluidic chips, micromachines, and biomimetic microstructures. Prof. Wu has published 65 papers in the international journals of Light: Sci & Appl.(Nature publishing group), PNAS, Laser Photon. Rev., Adv. Mater., Adv. Funct. Mater., Small, Lab Chip, Appl. Phys. Lett., Opt. Lett. and so on.

Advanced functionality of material induced by femtosecond laser pulse

Yasuhiko Shimotsuma Kyoto University, Japan

The polarization-dependent periodic nanostructures inside various materials are successfully induced by ultrafast laser pulses. The periodic nanostructures in various materials can be empirically classified into the following three types: (1) structural deficiency, (2) compressional structure, (3) partial phase separation. Such periodic nanostructures exhibit not only optical anisotropy but also intriguing electric, thermal, and magnetic properties. In the presentation, we demonstrate new possibilities for functionalization of common materials ranging from an eternal 5D optical storage, a polarization imaging, to a thermoelectric conversion, based on the indicated phenomena.

BiographyDr. Yasuhiko Shimotsuma is currently the Associate Professor of Department of Material Chemistry, Kyoto University, Japan. He received B. Sc. (1994) and M. Sc. (1996) degrees in Engineering from Tohoku University. He also received Ph.D. degree in Material Chemistry from Kyoto University in 2005. In 1996, he joined the Corporate R&D Division for Components & Devices of Kyocera Corporation. In 2004, he joined the Fukui Institute for Fundamental Chemistry of Kyoto University. In 2006, he held the position of Associate Professor at NEDO Integrated Photonics Laboratory, International Innovation Center (currently, Office of Society-Academia Collaboration for Innovation), Kyoto University. His current area of interest is the physics of light-matter interaction and development of the functional materials and the new devices on the basis of nanoscience and ultrashort pulse laser.

Femtosecond laser processing crystal: from semiconductor to dielectric

Qiang Wu Nankai University, China

Femtosecond laser has proved to be an efficient tool to process crystal materials, which are widely used in many areas. Because of the characteristics of femtosecond laser, ultrashort pulse duration and ultrahigh peak power, the interaction process of laser pulse with crystal material is extremely complicated. It is an ultrafast dynamic process with ultrastrong light-matter interaction, which can overcome some physical limits. And it can lead to material modification of the crystals, accompanying with microstructuring and hyperdoping. For hyperdoping, the dopant concentration exceeds the solid


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solubility limit by several orders of magnitude. Therefore, the processed materials and devices made from which show some special properties. In this presentation, I will introduce our research progress of femtosecond laser processing of semiconductor silicon and dielectric lithium niobate, including processing principle and the devices made from them. Especially, in this year we overcame the coulomb explosion effect to produce uniform periodic surface structures on lithium niobate crystal.

BiographyQiang Wu is a full professor of physics at School of Physics & TEDA Institute of Applied Physics, Nankai University. He is also serving as an advisor of Boling Class, a partner of Pilot Scheme of Talent Training in Basic Sciences of China from 2010, a member of editor board of Scientific Reports from 2013, an executive director of Tianjin Society of Physics from 2017, and a member of young editor board of Chinese Laser Press from 2017. He received BSc in 2000 and PhD in 2005 from Nankai University and was a postdoc at Tufts University and MIT in 2007 and 2008. After got his Ph.D. degree in 2005, he leads a group in Nankai University for the research of ultrafast photonics and photoelectric materials & devices. Especially in the research area of THz phonon polariton, hyperdoped materials and devices, he has a series of research results.

Single shot compressed ultrafast photography

Shian Zhang East China Normal University, China

Capturing the transient scenes at high imaging speed has been long-term dream by scientists. Especially, the introduction of electronic imaging sensors based on charge-coupled device (CCD) or complementary metal-oxide-semiconductor (CMOS) technology can make the imaging speed up to 107 frames per second, but the frame rate of this technique is limited by the on-chip storage and electronic readout speed, and therefore further increasing frame rate is unable. In this talk, we would like to demonstrate a two-dimensional dynamic imaging technique, compressed ultrafast photography (CUP), which can capture non-repetitive transient events at up to 5×1012 frames per second. Compared with existing ultrafast imaging technique, the CUP technique has the prominent advantage of measuring transient scene with a single camera snapshot, and so it can observe the transient events with the temporal resolution in the range of picosecond. Considering CUP’s ability, it hopes to be applied in both fundamental and applied sciences, including biomedical research.

BiographyShian Zhang is currently a Professor at East China Normal University. He received his B. E. degree in Physics from Fujian Normal University in 2001 and PhD degree in Optics from East China Normal University in 2006. His research focuses on ultrafast optical imaging, including compressed ultrafast photography and nonlinear optical microscopic imaging. He has published over 120 journal papers, including JPCL, Optica, PR, PCCP, APL, JCP and PRA.

Space-Selective Modification of Glass by Using Femtosecond Laser

Shifeng Zhou South China University of Technology, China

Laser induced modification and damage in transparent materials (e.g., glass) has attracted considerable interest and been studied since the advent of high power pulsed lasers. Especially while using a femtosecond laser as the irradiation source, the tight focusing and nonlinear nature of the absorption make it possible to confine the absorption to the focal volume inside the bulk of the material, allowing for micromaching in extremely small region. In this talk, we introduce the progress in space-selective modification of glass by using femtosecond laser. We show that some fundamental processes, including valence state change of dopant, decomposition of cluster, element redistribution, phase transition and nanocrystallization, can occur in the femtosecond laser irradiation region inside glass. As a result, the optical response of the modified glass can be controlled. For examples, nanostructure with bright luminescence can precipitate after irradiation. The microstructures with multicolor luminescence can also be induced. The results suggest that space-selective modification of glass by using femtosecond laser can be applied to fabricate various types of active microstructures inside glass.


Session 10


BiographyShifeng Zhou is a professor of Materials Science and Engineering at South China University of Technology. He received his PhD degree (2008) in Materials Science and Engineering from Zhejiang University. He spent one year at the Hong Kong Polytechnic University as a research assistant (2007). Subsequently, he joined Hokkaido University as a postdoctoral researcher (2008-2009), and then moved to Kyoto University as a JSPS postdoctoral fellow (2009-2011). He was an associate professor in Zhejiang University (2011-2013). He has authored or coauthored more than 100 scientific journal papers. He is the recipient of the Motoharu Kurata Award of the Ceramic Society of Japan. His primary research area is photonic glasses and glass-ceramics.

Chemical Etching Assisted Femtosecond Laser Direct Writing

Qidai Chen Jilin University, China

Femtosecond laser machining has been widely used for fabricating arbitrary three-dimensional (3D) structures. However, it suffers from the problems of low fabrication efficiency and high surface roughness when processing hard materials. To solve these problems, the chemical etching assisted femtosecond laser machining technology is proposed for fabricating 3D structures on the surface of hard materials. After femtosecond laser irradiation, the material properties of the irradiated area would be changed, which would result in the difference of the etching rate between laser treated and untreated regions. The etching process includes chemical wet etching and dry etching. All-silicon uniform-close-packed honeycomb concave microlens array was fabricated by this method. In addition, the dry etching system is compatible with the IC fabrication process. For example, microlens could be fabricated on the pre-existing micro cantilever and microlens arrays could be formed with the fabrication of microchannels by integration of femtosecond laser machining with lithography process. Thus, the DE-FsLM technology holds great potential for application in the device integration processing industry.

BiographyQi-Dai CHEN received the Ph.D. degree in Plasma Physics from Institute of Physics, CAS, Beijing, China, in 2004. He worked as a JST postdoctoral researcher in Department of Physics, the Osaka City University, Japan, from 2005 to 2006, and then as an associate professor in College of electronic science and engineering, Jilin University, China. In 2011, he was promoted as a full professor. His research interests have been laser nanofabrication technology for micro-optics, semiconductor laser beam shaping and sub-wavelength anti-reflective microstructure. So far, he has published over 180 scientific papers in the above fields, which have been cited for over 3700 times according to ISI search report，H-index 39.

Ultrafast dynamics of femtosecond laser-induced periodic ripples

Tianqing JiaEast China Normal University, China

We conduct a collinear pump-probe imaging experiment, and study the ultrafast dynamics of the formation of periodic ripples induced by a single 800 nm, 50 fs laser pulse on Si surface with a prefabricated nanogroove. The onset of surface ripples is observed in 3 ps after the arrival of pump pulse with a fluence of 0.18 J/cm2, and the ripple positions keep stable during the evolution.

The excitation of free carriers, the evolution of carrier and lattice temperature are studied by the TTM-Drude model. The theoretical results indicate that the melting time is about 3 ps for laser fluence of 0.18 J/cm2, and it becomes shorter for higher laser fluence, which are very close to the experiment results. These indicate that the surface ripples are due to the surface melting, and exclude other thermal dynamics, such as ablation, hydrodynamics, etc. The period is predicted according to the SPP model and coincide with the experiment result. The results demonstrate that the ripples are caused by the surface melting, and the formation of ripples is due to the periodic energy deposition caused by the SPP excitation.

BiographyDr. Tianqing Jia is a full professor at State Key Laboratory of Precision Spectroscopy, East China Normal University, China. His main research focuses in the ultrafast optics and laser micro/nanofabrication.


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CIOP2018-2017-000309 Micro/nanofabrication of chiral structures and furcate pillars by femtosecond optical vortices Jincheng Ni; Yanlei Hu; Jiawen Li; Dong Wu ｜ University of Science and Technology of China, ChinaHere, a rapid and flexible method is proposed to fabricate chiral microstructures and furcate slanted micropillars with the aid of holographic optical vortices. This technique is a robust and rapid method to fabricate 3D structures, which provides broad applications in microoptics, microfluidics and metamaterial fabrication.

CIOP2018-2017-000234 High-precision laser fabrication of hard material micro/nanostructures Xueqing Liu1; Lei Yu2; Shuang-Ning Yang2; Qi-Dai Chen2; Hong-Bo Sun1 ｜ 1 Tsinghua University, China; 2 Jilin University, ChinaDry-etching assisted femtosecond laser Machining (DE-FsLM) method is proposed for solving the problems of low fabrication efficiency and high surface roughness when processing hard materials.

CIOP2018-2017-000460 Joining of carbon fiber reinforced plastic to aluminum alloy by reactive multilayer films and low power semiconductor laser heating Ying Ma ｜ Beijing University of Technology, ChinaThis study investigates on the characteristics and strength of the dissimilar joints between CFRP epoxy composites and aluminum alloys using a low power continuous wave diode laser.

CIOP2018-2017-000303 Study of the internal hollow structures fabricated with two typical femtosecond laser systems and their respective applications Chong Zheng12 , Ziqi Feng1; Tao Chen1; Anming Hu3; Shibing Liu1; Junwei Li2 ｜ 1 Beijing University of Technology ,China; 2 Science and Technology on Optical Radiation Laboratory, China; 3 University of Tennessee, Knoxville, Tennessee, USA3D internal hollow structure fabricated inside the polymer material - PMMA with different types of femtosecond laser are studied. Both ‘heat accumulation effect’ and ‘cold processing property’ are observed, analyzed and utilized in microdevice structuring.

CIOP2018-2017-000346 Single scan femtosecond laser writing of depressed cladding waveguides in ZBLAN glasses Qian Zhang1; Dong Yang1; Jia Qi2; Ya Cheng2; Qihuang Gong13; Yan Li13 ｜ 1 Peking University, China; 2 Shanghai Institute of Optics and Fine Mechanics, CAS, China; 3 Shanxi University, ChinaWe report single scan transverse writing of depressed cladding waveguides in ZBLAN glass with longitudinally oriented annular ring-shaped focal intensity distribution of the femtosecond laser. The fabricated waveguides exhibit good single guided mode.

Oral Talks


Session 10


CIOP2018-2017-000240 Diverse microlens arrays utilizing femtosecond laser microprocessing Hao Bian; Feng Chen; Qing Yang; Guangqing Du; Jiale Yong; Xun Hou ｜ Xi’an Jiao Tong University, ChinaHere presents the fabrication of diverse microlenses, like liquid microlenses, polymer microlenses, hard material microlenses utilizing femtosecond laser which demonstrates the versatility of the femtosecond laser microprocessing.

CIOP2018-2017-000360 Illumination Uniformity Improvement in Digital Micromirror Devices based Scanning Photolithography System Hua Liu; Qiankun Li ｜ Northeast Normal University, Chinawe propose a simple and cost-effective method based on the modulation of digital micromirror device(DMD). The modulation according to a digital mask achieved via an iteration program improves illumination uniformity to be above 95%.


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Invited Talks

Integrated microwave photonics for microwave signal generation and processing

Jianping YaoUniversity of Ottawa, Canada

Photonic integrated circuits are playing an increasingly important role in the implementation of microwave photonic subsystems and systems for the generation, processing and control of wideband and high frequency microwave signals. In this talk, recent developments in the use of photonic integrated circuits for the generation, processing and control of microwave signals based on different material systems will be discussed. The challenges facing microwave photonics for monolithic integration will also be discussed.

BiographyJianping Yao (M’99-SM’01-F’12) is a Distinguished University Professor and University Research Chair in the School of Electrical Engineering and Computer Science, University of Ottawa, Ontario, Canada. He served as Director of the Ottawa-Carleton Institute for Electrical and Computer Engineering 2007-2010 and 2013-2016. During his career, he has authored over 560 papers (H-index: 60) including over 330 in reviewed journals and 230 in conference proceedings. He is Editor-in-Chief of IEEE Photonics Technology Letters, a Topical Editor of Optics Letters, and an Associate Editor of Science Bulletin. Currently he serves as Chair of the IEEE Photonics Ottawa Chapter and Technical Committee Chair of IEEE MTT-3 Microwave Photonics. He is a chair or co-chair of multiple international conferences, including the general co-chair of 2017 IEEE International Topical Meeting on Microwave photonics, and general chair of 2019 IEEE International Topical Meeting on Microwave photonics. Prof. Yao is a Fellow of the IEEE, the Optical Society of America, and the Canadian Academy of Engineering.

Photonic Microwave Detection and Measurement

Xihua Zou Southwest Jiaotong University, China

Microwave detection and measurements enabled by photonics have been characterized with distinct features such as wide frequency coverage, large instantaneous bandwidth, low frequency-dependent loss, and immunity to electromagnetic interference, have been studied extensively recently. In this talk, a comprehensive overview of the latest advances will be presented, including microwave parameter measurement, microwave signal detection, practical systems for daily applications (e.g., the high-speed railways). With these results and achievements, we can expect more striking applications enabled by microwave photonics in near future.

BiographyXihua Zou is a Full Professor in the Center for Information Photonics & Communications, Southwest Jiaotong University, China. He once was a visiting researcher and a joint training Ph.D. student in the Microwave Photonics Research Laboratory, University of Ottawa, Canada, in July and August of 2011 and in 2007-2008, respectively. His current interests include microwave photonics, radio over fiber, and optical communications. He has authored or coauthored over 80 academic papers in high-impact refereed journals.

Dr. Zou was a recipient of the Alexander von Humboldt Research Fellowship, National Outstanding Expert in Science & Technology of China, the Nomination Award for the National Excellent Doctoral Dissertation of China. He currently serves as the Associate Editor of IEEE Journal of Quantum Electronics, the Guest Editor for a Special Issue on Microwave Photonics in IEEE/OSA Journal of Lightwave Technology.



Session 11


On the phase-shifted photonic analog-to-digital conversion

Hao ChiZhejiang University, China

High speed analog-to-digital converters (ADCs) are indispensable in a wide range of modern applications. However, limited by the inherent timing jitter and bandwidth bottleneck, the development of electronic ADCs is relatively slowly. Photonic technologies are considered as potential solutions to improve the performance of ADCs. Here, two novel photonic ADC schemes based on optical external modulators are proposed and investigated in order to simplify the structure and improve the performance of phase-shifted photonic ADCs. In the first one, an array of Mach-Zehnder modulators (MZMs) with identical half-wave voltages are biased properly and electric circuits after the photodetectors are used to realize linear combinations of the detected signals (including subtraction and summation). Digital Gray code output can be obtained after the comparator array. The key advantage of this scheme is that it largely reduces the number of modulators used, where only 2N-3+1 MZMs are necessary for an N bit phase-shifted photonic ADC system. In the second scheme, dual-output MZMs instead of single-output MZMs are employed in a phase-shifted ADC and balanced detectors are employed to demodulate the two outputs of the dual-output MZMs. Due to the complementary property of the two outputs of dual-output MZMs as well as the balanced detection, this scheme can eliminate the impact of power fluctuation of the input light and the thresholding level in the electronic comparators can be set to fixed values. Theoretical and experimental results verify the feasibility of the proposed approaches.

BiographyProf. Hao Chi received his PhD degree in electronic engineering from Zhejiang University, Hangzhou, China, in 2001. He joined the College of Information Science and Electronic Engineering, Zhejiang University, in 2003. Currently, he is a full professor. He spent a half-year at The Hong Kong Polytechnic University, Hong Kong, as a research assistant and two years at Shanghai Jiaotong University, Shanghai, China, as a postdoctoral fellow. From July 2006 to January 2008, he was a visiting professor with the Microwave Photonics Research Laboratory, School of Information Technology and Engineering, University of Ottawa, Canada. His research interests include optical communications and networking, microwave photonics, fiber-optic sensors, and optical signal processing. He has authored and coauthored more than 100 peer-reviewed journal papers.

Microwave photonic system with bandwidth scaling

Yitang DaiBeijing University of Posts and Telecommunications, China

In conventional microwave (MWP) systems, the bandwidth keeps unchanged during the electronic-to-optical (E-O) conversion and the optical-to-electronic (O-E) conversion. Here we propose and demonstrate a novel MWP system where the bandwidth is stretched during the E-O conversion and compressed during the O-E conversion. The proposed bandwidth scaled MWP system provides some new and valuable features. Firstly, the bandwidth of the input signal is greatly magnified after the E-O conversion so that the requirement of the frequency resolution of the optical devices is effectively reduced. One of the examples is a novel high resolution reconfigurable microwave wave-shaper. Using this bandwidth scaling technology, we manage to map a reconfigurable optical wave-shaper with lower frequency resolution of tens of GHz into a microwave one with resolution of tens of MHz. Secondly, the bandwidth is compressed but the phase keeps preserved during the O-E conversion. As a result, the phase response is remarkably magnified from the optics to the microwave. With this feature, we can greatly magnify the group delay variation by around 200 times from optics to microwave and a dispersion enlargement of about 40000 times is also obtained. We believe that this novel concept of “bandwidth scaling” can provide a potential routine in many MWP applications.

BiographyYitang Dai received his B.Sc. and Ph.D. degrees in Electronic Engineering from the Tsinghua University, Beijing, China, in 2002 and 2006, respectively. He was a Postdoctoral Research Fellow with School of Information Technology and Engineering, University of Ottawa, Ottawa, ON, Canada, and with School of Applied and Engineering Physics, Cornell University, Ithaca, NY, USA from June 2007 and July 2008, respectively. Since June 2010 he has been an Associate Professor with the State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications (BUPT), Beijing, China. He is now Professor in BUPT.


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Yitang Dai has published over 150 papers on journals and international conferences, including more than 40 papers published by IEEE (Institute of Electrical and Electronics Engineers) and OSA (optical society of America) where he is the first or corresponding author, as well as ten invited talks. All publications have been cited more than 2000 times (counted by Google Scholar). In 2017, He served as workshop chair and TPC member in International Topical Meeting on Microwave Photonics. His main achievements are in microwave photonics, ultrafast fiber lasers, optical fiber communications, integrated photonics, and fiber gratings. He is the first inventor of more than 20 Chinese patents.

Tunable Photonic Microwave Generation Using Modulated Period-One Laser Dynamics

Sze-Chun ChanCity University of Hong Kong, China

Period-one (P1) oscillation is a manifestation of nonlinear dynamics in semiconductor lasers. The P1 dynamics of optically injected semiconductor lasers allows for photonic microwave generation that is widely tunable and optically controllable. The frequency stability can be improved through various feedback and locking techniques. Recently, the switching between the stable and P1 nonlinear dynamical states of a semiconductor laser is experimented for square-wave modulated photonic microwave generation. The stable state corresponds to a single-frequency continuous-wave emission, while the P1 state corresponds to emission at an optical carrier with sidebands separated by a microwave frequency of oscillation. The oscillation frequency is typically on the order of 10 GHz in correspondence to the relaxation resonance frequency of the laser, where extension to 100 GHz is possible through optical injection. Due to the nonlinear dynamics, regular switching between the states is yielded spontaneously with a period determined by the feedback round-trip time. Numerically, based on the Lang-Kobayashi model, the laser is investigated in the long-cavity regime in which the feedback delay time is sufficiently longer than the reciprocal of the relaxation resonance frequency of the laser. A large number of external cavity modes are supported even under a weak feedback strength. The state switching is thereby explained by sequential visits of the external cavity modes in a deterministic manner. The approach using P1 oscillation offers an alternative of microwave generation without involving any microwave electronics for modulation.

BiographyNelson Sze-Chun Chan received the B.Eng. degree in electrical and electronic engineering from the University of Hong Kong in 2001, and the M.S. and Ph.D. degrees in electrical engineering from the University of California at Los Angeles (UCLA) in 2004 and 2007, respectively. He is currently an Associate Professor in the Department of Electronic Engineering and the State Key Laboratory of Millimeter Waves at the City University of Hong Kong. He received the Dr. Bor-Uei Chen Scholarship of the Photonics Society of Chinese-Americans in 2007. He served as a Guest Editor of IEEE Journal of Selected Topics in Quantum Electronics (Issue on Semiconductor Lasers 2013), Feature Editor of Optics Express (Issue on Physics and Applications of Laser Dynamics 2018), and Guest Associate Editor of International Journal of Bifurcation and Chaos since 2010. His research interests include nonlinear dynamics of semiconductor lasers, photonic microwave generation, and random bit generation using optical chaos.

Recent advances in optoelectronics oscillators

Ming LiInstitute of Semiconductors, CAS, China

An optoelectronic oscillator (OEO) is a microwave photonic system with a positive feedback loop to create microwave oscillation with an ultra-low phase noise that can rival the best crystal oscillators thanks to the employment of a high-Q energy storage element, such as a long and low loss fiber delay line. An OEO is usually used to generate a single-frequency microwave signal with an ultra-low phase noise.

In this talk, I will a few latest advances in OEOs based on new principles for large time-bandwidth-product waveform generation and optical sensing etc. Future prospects on OEO integration and the other potential new directions will also be discussed.


Session 11


BiographyMing Li received the Ph.D. degree in electrical and electronics engineering from the University of Shizuoka in 2009. In 2009, he was with the Microwave Photonics Research Laboratory, University of Ottawa as a Postdoctoral Research Fellow. In 2011, he was in the Ultrafast Optical Processing Group in INRS-EMT as a Postdoctoral Research Fellow. In 2013, he joined the Institute of Semiconductors, Chinese Academy of Sciences, as a Full Professor under the support of Thousand Youth Talents Program. He has authored more than 200 high-impact journal and international conference papers. His current research interests include ultrafast optical signal processing, integrated microwave photonics and its applications, optical devices for communications.

High-speed high-resolution photonic analog to digital converter

Weiwen Zou Shanghai Jiao Tong University, China

Basic principle and the experimental configuration of high-speed high-resolution photonic analog to digital converter (PADC) will be presented. Recent progress on PADC will be introduced. Moreover, we demonstrate the application of high-speed high-resolution PADC for wideband signal detection and radar reception.

BiographyWeiwen Zou received his B.S. degree in physics and M.S. degree in optics from Shanghai Jiao Tong University, China, in 2002 and 2005, respectively, and Ph.D. degree in optoelectronics from the University of Tokyo, Japan, in 2008. Since 2005, he had been working on Brillouin-scattering-based discriminative sensing of strain and temperature for his doctoral research in electronic engineering, the University of Tokyo, Japan. From 2008 to 2009, he was a Postdoctoral Research Fellow at the University of Tokyo. In 2009, he became a Project Assistant Professor of the University of Tokyo. In 2010, he joined Shanghai Jiao Tong University as an Associate Professor. In 2016, he became a full Professor at Shanghai Jiao Tong University.

His current research interests include microwave photonics and photonic signal processing. Dr. Zou is a senior member of IEEE and the Optical Society of America (OSA). He has worked as a TPC session co-chair for OECC 2015 and a TPC member for OECC 2016. Besides, he has co-organized sessions of Nonlinear Fiber Effects for Sensing and Signal Processing for PIERS 2015 and 2016.

Microwave Photonics for High-Frequency Wideband Distributed Phase Coherent Imaging Radar

Zhangyuan Chen Peking University, China

High frequency and wide-bandwidth distributed coherent imaging radar (DCIR) is a new class of radar with extraordinary properties for high-resolution real-time 3D-imaging. However, It raises many key technology challenges, such as the high-quality signal of wide bandwidth, time distribution network with high accuracy, beam direction with high time and space accuracy, and wideband ADC with high ENOB. We will show that the microwave photonic technologies can address these challenges, including the optical generation of the orthogonal waveform with large time-bandwidth production, optical fiber time-frequency synchronization network with high accuracy, time-space precise control of OBFN, and high-frequency wideband ADC. Finally, We will demonstrate that the microwave photonics based DCIR with multi-band (X+Ka+W) can realize the 3D image with the resolution of the order of a centimeter.

BiographyZhangyuan Chen received the BS, M.S. and Ph.D. degrees from Peking University of China, in 1991, 1994 and 1997, respectively. Since 1999, he has been with the State Key Laboratory of Advanced Optical Communication Systems & Networks in Peking University as an Associate Professor (1999-2004), and Professor (2004-present) of Electronics Engineering. He worked as a visiting scholar in COMELEC Department of Ecole Nationale Superieure des Telecommunications of France (1998), and in EECS Department of UC Berkeley (2005-2006). His main research interest is in the area of optical communication and photonic devices.


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Femtosecond laser-based microwave photonics

Jungwon Kim Korea Advanced Institute of Science and Technology, Korea

In this presentation, I introduce our recent works on ultra-low noise mode-locked fiber lasers and their applications in various microwave photonic systems. The scope includes (a) ultra-low-noise and agile all-fiber-photonic X-band microwave signal synthesizers, (b) all-fiber-photonics-based timing stabilization to 10-14-level frequency instability and 1-fs jitter over 1-s, (c) femtosecond-stability timing and synchronization between lasers and RF sources for ultrafast electron diffraction (UED) systems, (d) stable remote RF phase transfer over several km fiber links, and (e) ultra-sensitive and high dynamic range strain sensing and dimensional metrology based on precise phase detection between optical pulses and RF phase. With rapid progress in both robustness and noise performances in femtosecond mode-locked fiber lasers, we anticipate that many new microwave photonic applications can be further explored in the coming years.

BiographyJungwon Kim received the B.S. degree in electrical engineering from Seoul National University, Seoul, South Korea, in 1999 and the S.M. and Ph.D. degrees in electrical engineering and computer science from the Massachusetts Institute of Technology (MIT), Cambridge, MA, USA, in 2004 and 2007, respectively. From 1999 to 2002, he was a Development Engineer at FiberPro, Inc. From 2007 to 2009, he was a Postdoctoral Associate with the Research Laboratory of Electronics (RLE), MIT. In 2009, he joined the faculty of the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, where he is now an Associate Professor of mechanical and aerospace engineering. He is currently an editorial board member of Scientific Reports. He has 50 journal publications, more than 100 conference proceeding papers, 24 issued/pending patents, and has given more than 80 invited talks. His research interests include ultralow-noise, integrated femtosecond lasers and their applications in photonic signal processing, ultrafast X-ray and electron sources, long-distance transfer and communication, industrial metrology, and remote sensing. He is a senior member of IEEE and OSA.

Photonic Data Compression for High-Frequency Microwave Signal Measurement

Chao Wang University of Kent, UK

Microwave signal measurement is a recent topic of great interest in various applications, such as wireless communications, radars and electronic warfare. Measuring high-frequency and broadband RF signals in a high-resolution while low-cost manner is challenging. Nyquist sampling theorem tells us that the sampling rate should be twice of the maximum signal frequency for a faithful signal detection.

The limited bandwidth (up to tens of GHz) of electronic circuits and limited sampling rate (up to tens of GSa/s) in ADCs and DSPs thus form the bottleneck for the torrent of data flow in ultrafast signal detection systems. Photonically assisted techniques for high-frequency microwave signal measurement have shown superior performance due to the distinct advantages such as large bandwidth, low loss, low cost, and immunity to electromagnetic interference. In this work, we report the most recent advances developed in our research group. Several novel microwave photonic solutions for sub-Nyquist signal detection with compressed time-bandwidth product are presented, including non-uniform photonic time stretch, photonic compressed sensing and nonlinear Fourier transform scanning. They provide promising solutions to tackle the bandwidth limitation and data traffic problems in existing ultrafast signal detection systems.

BiographyDr Chao Wang is a Senior Lecturer (Associate Professor) in the School of Engineering and Digital Arts (EDA), University of Kent, UK. From 2011 to 2012, he was a NSERC Postdoctoral Fellow in the University of California, Los Angeles (UCLA), USA. He received a B.Eng degree in Opto-electrical Engineering from Tianjin University, China, in 2002, a M.Sc degree in Optics from Nankai University, China, in 2005, and a Ph.D degree in Electrical and Computer Engineering from the University of Ottawa, Canada, in 2011.

Dr Wang’s research interests lie in microwave photonics, optical communications, optical sensing and biophotonics. His research activities have been well funded by EU Marie-Curie Actions, the Royal Society of UK, University of Kent, and Natural Sciences and Engineering Research Council (NSERC) of Canada. He has authored over 100 peer-reviewed journal publications and conference papers with total citations of over 1500 and h-index of 22. He has given invited talks in leading photonics conferences including ECOC, MWP, and IPC. He was the recipient of SPIE Scholarship in Optical Science and Engineering (2008), Vanier Canada


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Graduate Scholarship (2009), Chinese Government Award for Outstanding Self-Financed Students Abroad (2009), IEEE Photonics Society Graduate Student Fellowship (2009), IEEE Microwave Theory and Techniques Society Graduate Fellowship (2010), NSERC Postdoctoral Fellowship (2011), and EU Marie Curie Career Integration Grant Award (2014). He also received the Best Paper Awards from APMP 2009 and MWP 2010.

He served as the Symposium Co-organizers and Co-chairs in PIERS 2014 and CLEO-PR 2017, 2018. He also served as the Guest Editors of Special Session on Microwave Photonics in SPIE Optical Engineering, and Special Issue on Microwave Photonics in MDPI Photonics.

High Density Carriers Transport Mechanism in High Speed and High Power UTC Photodiodes

Bing Xiong Tsinghua University, China

The high-density carrier transport process are studied by theoretical and experimental methods.

A multi-particle Monte Carlo simulation model is proposed to analyse carriers transportation in UTC-PDs under different photocurrents and bias voltages. The influences of the space-charge screening and heterojunction confinement effect are included in this model.

On the other hand, A photocurrent-dependent equivalent circuit model is proposed to analyze the frequency response of the high power MUTC-PDs. The influences of the space-charge screening, self-induced electric field and over-shoot effects are discussed in detail based on the model.

BiographyBing Xiong received the B. S., M. S., and Ph. D. degrees from Tsinghua University, Beijing, China, in 1998, 2001, and 2005, respectively, all in physical electronics.

In 2005, he joined the Department of Electronic Engineering, Tsinghua University, as a Faculty Member. Now he is an associate professor in tenue track of Tsinghua University. His research activities include high-speed optoelectronic devices, photonic integrated circuits, and Lidar technologies.

Ultrafast THz Photonic Wireless Communications: 100 Gbit/s and Beyond

Xianbin Yu Zhejiang University, China

THz technology has been widely considered as the ‘next frontier’ for its high potential of accommodating ultrafast wireless data rates for future generations’ wireless access networks, which is predicted to reach 100Gbit/s, and eventually up to Terabit/s in the foreseeable near future. We will first review recent progress in developing high-speed sub-THz/THz wireless communication systems, with a special focus on the past and present of THz photonics enabled high speed wireless communication systems. We will also present the technical challenging aspects for achieving ultrafast data rates at 100Gbit/s and beyond, as well as our recent experimental demonstrations on photonic wireless transmission with data rate from 60Gbit/s to 160Gbit/s, then up to 260Gbit/s, by exploring large bandwidth available in the 300-500 GHz band and using a single THz emitter.

BiographyDr. Xianbin Yu is a research professor in the College of Information Science and Electronic Engineering at Zhejiang University. He received his PhD degree in 2005 from Zhejiang University in China. From 2005 to 2007, he was a postdoctoral research fellow at Tsinghua University, China. Since 2007 until 2016, he had been employed at DTU Fotonik of Technical University of Denmark in Denmark, where he became an assistant professor in 2009 and was promoted to be a Senior Researcher in 2013. In 2016, he joined Zhejiang University in China. His research interests are within the areas of ultrafast millimeter-wave/THz photonic information processing, ultrahigh frequency photonic wireless communication systems, and emerging new applications of millimeter-wave/THz technologies, etc.


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Recent advanced techniques on beam reconfigurable optical wireless system for energy-efficient communication (BROWSE)

Zizheng Cao Eindhoven University of Technology, Netherlands

Wireless communication by means of light (a.k.a. ‘optical wireless communication’, OWC) instead of radio waves can bring a breakthrough in communication capabilities, both in terms of ultra-high capacity per user and in terms of electromagnetic interference-free communication, without requiring spectrum licenses. Since 2012, an ERC advanced grant ‘Beam Reconfigurable Optical Wireless System for Energy-efficient communication (BROWSE) is carried out in Eindhoven University of Technology (TU/e). Here we summarize part of our recent progresses on infrared wireless communication (IWC) systems, mainly about how to increase the power utilization by advanced photonic integrated circuits of receiver and a novel transmitter concept.

The allowed optical power for indoor optical wireless communication is compulsorily limited to guarantee eye safety. Furthermore, considering diffraction and diffuse, the received power is remarkably low.

In the receiver side, to obtain more optical power, a large active area photo-diode is traditionally utilized. However, the increased active area will result in decreased bandwidth due to its enlarged capacitance. We proposed a novel cascaded aperture optical receiver (CAO-Rx) to separate the lightwave collection aperture and detection aperture will be discussed. The optical efficiency and electrical bandwidth can be independently optimized.

In the transmitter side, to increase the power utilization of diffused light, we proposed a novel transmitter with diffusion focusing techniques.

The operation principles and experimental results of these techniques will be explored in this talk.

BiographyDr. Zizheng Cao is currently an Assistant Professor in ECO group at COBRA research institute of Eindhoven University of Technology (TU/e). In 2014, he obtained his first PhD degree with a major of computer science from Hunan University, China. One year later, he was graduated in 2015 with highest honor PhD degree (cum laude) in Eindhoven University of Technology. After one-year post-doctoral research, Dr. Cao had been promoted to a tenure track position as an assistance professor. Dr. Cao has a 10-years research experience on optical communication and opto-electronics and more than 6-year experience on the design of photonics integrated circuit in multiple platform from InP to Silicon. In 2010, he published one first-author invited paper in IEEE/OSA Journal of Lightwave Technology about the advanced OFDM radio-over-fiber networks. His pioneering work about optical radio beam steering enabled by integrated photonic circuits has been invited to be presented in IEEE Journal of Quantum Electronics as an invited review. Since 2015, he focuses on the high performance optical wireless receiver based on in-house InP membrane technology of TU/e. He proposed the concept of cascaded aperture optical receiver (CAO-Rx) and fabricated in the InP membrane platform. In OFC2017, he published a first-author post-deadline paper on 200Gb/s indoor optical wireless link empowered by a high-performance CAO-Rx. He is therefore invited to publish invited paper in IEEE/OSA Journal of Lightwave Technology. He has been requested to give 6 invited talks in international conferences such as ACP, Photonics West, OECC, CLEO-PR and PIERS. His research articles have been cited for 1115 times, with an H-index of 17 and an ‘i10’ factor of 29 (google scholar). He is a recipient of IEEE Photonics Society Graduate Student Fellowship 2014.

Analog Signal Processing Using Polarization-based Photonic Microwave Phase Shifters

Yamei Zhang Nanjing University of Aeronautics and Astronautics, China

The essence of microwave photonic signal processing is to manipulate the magnitude and the phase of a signal via photonic means, which has the potential advantages of broadband operation, high frequency, low loss transmission and immunity to electromagnetic interference. Since the magnitude can be easily tuned by an optical attenuator or amplifier, a photonic microwave phase shifter is considered as a fundamental element of microwave photonic signal processing.


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Among all the photonic microwave phase shifters, a polarization-based photonic microwave phase shifter that implemented with an orthogonal circularly-/linearly-polarized wavelength generator incorporated with a polarizer provides advantages of high scalability, high-speed phase tuning, large operation bandwidth, full-360-degree tunability, flat power response, and compact configuration, making it a key enabler for many microwave photonic signal processing, such as tunable microwave photonic filtering, optically controlled beamforming, high-speed phase coding, large time-bandwidth product (TBWP) signal generation, high precision phase noise measurement, and RF interference cancellation.

In this talk, the recent advances of polarization-based photonic microwave phase shifters are reviewed. Broadband signal processing enabled by the polarization-based photonic microwave phase shifter is described. Developmental trends and other potential applications of the polarization-based photonic microwave phase shifters are discussed.

BiographyYamei Zhang received B.S. and Ph.D. degrees at Nanjing University of Aeronautics and Astronautics, where she is currently an assistant professor in the Key Laboratory of Radar Imaging and Microwave Photonics and the Ministry of Education. Her current research focuses on microwave photonic signal generation and processing.

Recent Progresses in Microwave Photonics Imaging Radar

Shangyuan LiTsinghua University, China

Radar is a combination of various state-of-the-art microwave techniques. Microwave photonics imaging radar (MPIR) is also the most complex microwave photonic (MWP) platform that covers almost every cutting-edge MWP researches.

Recently, many MPIR researches are proposed to reveal the potential of centimeter-grade resolution of radar imaging using MWP techniques, from signal generation, up/down conversion, de-chirping, receiver front-end, as well as many signal-processing abilities.

MPIR covers the frequency range from S-band to W-band, which can be used in many applications, such as radar detection, geographic sensing, security check, with instantaneous bandwidth of several gigahertz and range resolution of several centimeters. Researches also convinced us for its compatibility with software defined radio (SDR) technique and digital processing in many application scenarios.

BiographyShangyuan Li received the B.S. and Ph.D. degrees in Electronic Science and Technology from Tsinghua University, Beijing, China, in 2005 and 2011, respectively. He is now a staff member of the Department of Electronic Engineering of Tsinghua University. His research interests include microwave photonic signal processing, radio over fiber, optical communication, fiber design, and microwave photonic radar.

Microwave-photonics fiber sensing techniques

Li XiaHuazhong University of Science and Technology, China

Three main work from our group are introduced here: Firstly, an ultrashort fiber Bragg gratings based self-referencing distributed optical sensing technique is proposed, with the advantages of adjustable sensitivity and range, high-speed and wide-range intensity-based detection, and resistance to disturbance by nonuniform parameter distribution. The entire system is essentially based on a microwave network, which incorporates the SOGF with a fiber delay-line between the two arms. Differential detections of the cascaded US-FBGs are performed individually in the network time-domain response which can be obtained by analyzing its complex frequency response. Secondly, a radio-frequency unbalanced M–Z interferometer for interrogation of FBG sensors, which, owing to its operation in an incoherent rather than a coherent


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regime, provides an ideal solution for the existing stability problem of the conventional UMZI, with remarkable features of adjustable resolution and potentially extremely high sensitivity. The induced differential chromatic dispersion transfers the wavelength shift of the FBG to the change of the RF phase difference between the two interferometric carriers, which ultimately leads to the variation of the RF signal intensity. Thirdly, a radio frequency optical fiber interferometer based on dual-fiber Bragg grating is proposed for tens of kilometers distance remote measurements. The wavelength-difference variation is naturally transferred to the RF phase-difference change after the long round-trip of the optical carriers shifting the microwave interference pattern. The sensor exhibits important advantages of easy multiplexing, stability against random perturbations, self-adaptation to temperature, and mostly importantly, a potentially much higher sensitivity compared with common wavelength-modulated optic sensors.

BiographyDr. Li Xia joined the faculty of Huazhong University of Science and Technology in November 2009 in the school of Optical and Electronic Information. Prior to this, he was a research fellow in the school of Electrical and Electronics Engineering at Nanyang Technological University, Singapore. His scientific research is in the area of fiber based sensing devices and techniques, in which he has made a major impact on the evolving field of various demodulation techniques of sensing signals, and period structures, such as fiber gratings, photonics crystal fiber, etc, combining SPR, SERS effects to achieve the applications in the areas of aerospace, petrochemical engineering, electrical power system, biomedicine, etc. Dr. Xia has published more than 100 papers in peer-reviewed journals, and the total citations have reached approximately 1,000. He received his B.S. and Ph. D. degrees all from Tsinghua University in 1999, and 2004, respectively, in Electronic Engineering. Dr. Xia is the recipient of many international distinctions from high quality research journals, including the distinguished European Physics Journal (EPJ) referee (2013), appreciation reviewer award by Optical Engineering (2014, 2017), outstanding contribution in reviewing by Optical Communications (2015) and Optical Fiber Technology (2015), outstanding reviewer award by Journal of Optics (2016), and outstanding reviewer of Chinese Laser Press (2017), etc.

Optical transmission based on dispersion flattened fiber and few mode fiber

Hongjun ZhengLiaocheng University, China

We propose a dispersion flattened fiber (DFF) front-haul transmission system with high bitrate, polarization multiplexing (PM) and quadrature amplitude modulation (QAM) signal at low input optical power. And the modulation format of the system is PM-16QAM, the bitrate is 256Gbps. The transmission characteristics over DFF link system are experimentally studied, which are compared with those over non-zero dispersion shifted fiber (NZDSF) link and standard single mode fiber (SSMF) link. The experimental results show that the Error Vector Magnitude (EVM) of 256 Gbps and PM-16QAM over 25km DFF link is 0.75% better than that over 25km NZDSF link at least, the BER and Q-factor are much better than those of NZDSF. Their EVM and BER are all decreased with the increase of input optical power, and the Q-factor is increased. Those characteristics over 25 km SSMF are worst at the same case. The larger the dispersion is, the much more the constellation points are deviated from their respective centers and the worse the constellation characteristics. The greater the attenuation of the DFF, the smaller the input power of the DFF, the much more the constellation points are deviated from their centers and the worse the constellation characteristics. This study provides a new idea and experimental support for long span front-haul propagation for mobile communication.

BiographyHongjun Zheng received his B. S. degree in physics from Liaocheng University, Liaocheng Shandong, China, in 1993. He received his M. S. degree in radioelectronics from Huazhong Normal University, Wuhan Hubei, China, in 1998, and his PH D. degree in microelectronics and solid state electronics from Huazhong University of Science and Technology, Wuhan Hubei, China, in 2007. He completed his two years research in Beijing Jiaotong University as a Post-doctor in 2012, finished his one year research in Shanghai Jiaotong University as a visting scholar in 2013, accomplished his one year research in CREOL, University of Central Florida, USA as a visting scholar in 2015. He is currently a professor in Shandong provincial key laboratory of optical communication science and technology, School of Physics Science and Information Technology, Liaocheng University. His current research interests include microwave photonics, fiber optics, optical fiber and electronics devices, waveguide devices and Optical Communication system, etc. He is a senior member of the Chinese Optics Society and a lifetime member of the Chinese Physical Society.


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CIOP2018-2017-000132 Electro-optic mode deflection based on a lithium niobate waveguide with microstructured electrodes Fupeng Tian; Huihui Lu; Jun Tao; Jianli Dong; Wentao Qiu; Heyuan Guan; Yuan Wang; Jianhui Yu; Wenguo Zhu; Yunhan Luo; Jun Zhang; Weihua Li; Zhe Chen ｜ Jinan University, ChinaWe propose the electro-optic mode deflection devices based on annealed proton exchange (APE) waveguides in lithium niobate with microstructured electrodes. Two mode deflection devices with right-triangle-shaped electrodes and isosceles-triangle-shaped electrodes are investigated.

CIOP2018-2017-000368 Polarization Controlled Tunable Optoelectronic Oscillator Based on a Phase Modulator and an LCFBG Qi Ding; Muguang Wang; Jing Zhang; Hongqian Mu; Beilei Wu;T angjun Li; Shuisheng Jian ｜ Beijing Jiaotong University, ChinaA tunable optoelectronic oscillator based on polarization control is proposed by using a phase modulator and linear chirped fiber Bragg grating. A high-purity microwave signal with a tunable frequency within 3.3–7.3 GHz is generated.

CIOP2018-2017-000372 Microwave frequency divider with variable dividing ratio based on a tunable optoelectronic oscillator Huanfa Peng; Huayang Du; Rui Guo; Yongchi Xu; Cheng Zhang; Jingbiao Chen; Zhangyuan Chen ｜ Peking University, ChinaA 24GHz microwave frequency divider with variable frequency dividing-ratio of 2, 3, and 4 based on super-harmonic injection-locked optoelectronic oscillator is demonstrated. The frequency dividing-ratio is changed by tuning the frequency of the optoelectronic oscillator.

CIOP2018-2017-000379 Microwave signal characterization with a multi-frequency-comb fiber laser Xin Zhao; Zhi Qiao; Zheng Zheng ｜ Beihang University, ChinaWe proposed a novel microwave photonic approach to measure the frequency and other parameters of an unknown high-frequency signal by using a multi-frequency-comb fiber laser.

CIOP2018-2017-000382 Photonics-based Dual-band RF Receiver with Large Crosstalk Suppression Jiang Liu; Dan Zhu; Wenjuan Chen; Shilong Pan ｜ Nanjing University of Aeronautics and Astronautics, ChinaA dual-band RF receiver with large crosstalk suppression is proposed and demonstrated based on photonic image-reject mixing and polarization multiplexing. RF signals in X- and Ku-bands are simultaneously downconverted to the same IF band with crosstalk suppression of large than 30 dB.

CIOP2018-2017-000375 20 GHz optical pulse generation based on a 10 GHz optoelectronic oscillator Huanfa Peng; Rui Guo; Huayang Du; Yongchi Xu; Cheng Zhang; Jingbiao Chen; Zhangyuan Chen ｜ Peking University, ChinaA 20GHz optical pulse generation based on a 10GHz optoelectronic oscillator is demonstrated. The repetition-rate doubling is realized by tuning the bias voltage of the OFCG and the utilizing of a microwave frequency divider.

Oral Talks


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Invited Talks

Challenges in Optoelectronics and Possible Nano-Solutions

Cun-Zheng NingTsinghua University, China & Arizona State University, USA

This talk will discuss several important challenges faced by optoelectronics community. These challenges include 1) device size and energy efficiency challenge, 2) Bandgap or wavelength challenges, and 3) Integration challenge. Resolving these challenges would have profound impact on many applications of optoelectronics technology. We will discuss some of the possible solutions provided by going to nanoscales (thus nano-optoelectronics). I will show examples of nanoscale optoelectronic devices and how such devices could meet energy efficiency challenge, including plasmonic nanolasers and lasers with 2D monolayer gain materials. To meet the second challenge, I will show how nanomaterials could allow us to grow semiconductors of multi-bandgaps on a single substrate or within the same monolithic body. Finally some concluding remarks would be provided.

BiographyCun-Zheng Ning received his PhD in physics from the University of Stuttgart, Germany. He has published over 180 papers on laser physics, nanophotonics and nanolasers. He has also given over 180 invited, plenary, or colloquium talks worldwide. He was a senior scientist, nanophotonics group leader, and nanotechnology task manager at NASA Ames Research Centre (1997-2007), ISSP Visiting Professor at University of Tokyo in 2006, Visiting Professor at Technical University of Berlin and Tsinghua University in 2013. Since 2006, he has been professor of electrical engineering and affiliate professor in physics and materials science and engineering at Arizona State University. He is a “Thousand Talen Program” Professor at Tsinghua University since 2014. He was a winner of several awards including NASA and NASA Contractor Awards, NASA Space Act Patent Awards, CSC Technical Excellence Award, and IEEE/Photonics Society Distinguished Lecturer Award (2007-2009). Dr. Ning is a Fellow of the Optical Society (OSA), IEEE, and the Electromagnetic Academy. His many achievements have been widely reported in new media and tech magazines such as Science and Nature Photonics. The first white laser demonstration by his group has won “The Best of Tech in 2015” as the “Top 10 Engineering Achievements” by Popular Science magazine.

Optical Control of Interlayer Valley Excitons and Spin Transfer in MoSe2-WSe2 Heterostructures

John Schaibley The University of Arizona, USA

Monolayer transition metal dichalcogenide (TMD) semiconductors host strongly bound excitons that are located at K and –K valleys on the edges of a hexagonal Brillouin zone. The binary nature of the valley structure, has led to interest in using the valley degree of freedom to encode “valleytronic” information, in a manner similar to spin in spintronics. In this presentation, I will discuss the physics of interlayer excitons (Coulomb bound electron-hole pairs) hosted in bilayer MoSe2-WSe2 heterostructures and show how valley polarization can be injected and read out optically using a polarization selection rule. I will also discuss how spin and valley polarizations can be transferred between layers, and read out using polarization resolved nonlinear optical spectroscopy.

BiographyJohn Schaibley is an Assistant Professor of Physics at the University of Arizona. He received his PhD from the University of Michigan under Professor Duncan Steel, and did his postdoc at the University of Washington under Professor Xiaodong Xu. His current research is focused on understanding new physics and developing new optoelectronic applications in 2D material structures.



Session 12


Strong light-matter coupling in 2D materials

Xiaoze Liu University of California, Berkeley, USA

Two-dimensional (2D) transition-metal dichalcogenides (TMD) have emerged as a class of van der Waals semiconductors that demonstrate strong interaction with light at monolayer limit. This interaction can be further controlled by embedding such materials into optical cavities. When this interaction rate is faster than the average dissipation from the light matter entities, new hybrid half-light half-matter quasiparticles i. e. exciton polaritons can be formed in the so called “strong coupling” regime. Due to the hybrid nature, exciton polaritons possess the advantages from both light matter constituents, demonstrating rich underlying physics and optoelectronic applications. In optical cavities embedded with TMD monolayers, newly formed exciton polaritons take advantages of TMD excitons such as large exciton binding energies, huge oscillator strengths, and valley degree of freedom. In this presentation, I will first show the formation of such exciton polaritons formed in the TMD dielectric microcavity at room temperature. This provides an attractive route for the development of practical polaritonic devices with a disorder-free potential landscape. Then I will demonstrate precise control of coherently coupled exciton polaritons with tunable hybrid composition for the controlled polariton emission dynamics. It offers new possibilities to explore important quantum phenomena such as inversionless lasing, Bose-Einstein condensation, and superfluidity. Finally I will also talk about interesting inherited excitonic behaviors of the exciton polaritons from TMD excitons, and discuss the prospectives of strong light-matter coupling in 2D materials.

BiographyXiaoze Liu is currently a postdoctoral scholar with Prof. Xiang Zhang in NSF Nano Science and Engineering Center (NSEC) at University of California, Berkeley. His current research focuses on cavity quantum electrodynamics (CQED) and quantum optics in 2D transition metal dichalcogenide and perovskite semiconductors. He got his PhD degree in physics under supervision of Prof. Vinod Menon at City University of New York with the dissertation topic of “Control of Exciton Photon Coupling in Nanostructures”.

Nonlinear-like Optics in Liquid Suspensions of Two-dimensional Nanomaterials

Jiming Bao University of Houston, USA

We point out that phenomena such as self-phase modulation, pump-probe, Z-scan are not nonlinear effects, they are due to laser-induced thermal lens effect and optical anisotropy of aligned 2D materials.

BiographyDr. Bao is an associate professor of Electrical and Computer engineering at the University of Houston. He graduated from Zhejiang University with B.S. and M.S. in physics in 1992 and 1995, respectively. He obtained his Ph.D. in applied physics in 2003 from the University of Michigan, he then did post-doctoral research at Harvard University before joining the University of Houston in 2008 as an assistant professor. His current research covers many interdisciplinary topics ranging from solar energy conversion to fiber optic sensing. More information can be found from Dr. Bao’s group website at http://nano.ee.uh.edu/.


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Optoelectronic and electronic device applications of 2D Materials

Shijun LiangNanjing University, China

Two dimensional (2D) materials are emerging as a promising candidate for advanced optoelectronic and electronic devices due to their intriguing properties. I will start from our recent work on room temperature infrared (IR) photodetectors based on 2D materials. We realized black arsenic phosphorus–based long-wavelength IR photodetectors, with room temperature operation up to 8.2 μm, entering the second MIR atmospheric transmission window. Combined with a van der Waals (vdW) heterojunction, room temperature–specific detectivity higher than 4.9 × 10^9 Jones was obtained in the 3- to 5-μm range. We also present a p-g-n heterostructure (MoS2/graphene/WSe2) formed by sandwiching graphene with wide absorption spectrum in an atomically thin p-n junction for broadband photodetection in the visible to short-wavelength IR range at room temperature. Such devices exhibited competitive device performance, including a specific detectivity of up to 10^11 Jones in the near-IR region. Our vdW heterojunction photodetectors not only exemplify graphene and black arsenic phosphorus as a promising candidate for IR optoelectronic applications but also pave the way for a general strategy to suppress 1/f noise in photonic devices. Finally, our latest results on robust memristors based on 2D vdW heterostructure (graphene/MoS2-xOx/graphene), demonstrating extraordinary thermal stability with a record-high operating temperature, will also be discussed.

[1] M. Long, et al. “Room-temperature high detectivity mid-infrared photodetectors based on black arsenic phosphorus”, Science Adv. 3, e1700589 (2017). [2] M. Long, et al. “Broadband photovoltaic detectors based on an atomically thin heterostructure”, Nano Lett. 16, 2254 (2016).[3] M. Wang, et al. “Ultra-robust memristors based on fully layered two-dimensional materials”, Nature Electronics 1, 130 (2018).

BiographyTBA

Valley-Polarized Excitons in 2D Semiconductor Heterostructures

Xiaodong Xu University of Washington, USA

Heterostructures comprising different monolayer semiconductors provide a new and highly functional system for fundamental science and device technologies . One such application for this system is in the emerging field of 2D optoelectronics and valleytronics. In this talk, we will discuss the fundamental properties of interlayer exciton, where Coulomb bound electron and hole localized in opposite layers. We will show the direct optical excitation of interlayer exciton, determination of its binding energy, measurement of its optical dipole strength, optical generation of valley polarization, measurement of valley lifetime, and observation of exciton spatial drift-diffusion with many-body interaction effects.

BiographyXiaodong Xu is a Boeing Distinguished Professor in the Department of Physics and the Department of Materials Science and Engineering at the University of Washington. He received his PhD (Physics, 2008) from the University of Michigan and then performed postdoctoral research (2009-2010) at the Center for Nanoscale Systems at Cornell University. His nanoscale quantum-optoelectronics group at University of Washington focuses on creation, control, and understanding of novel device physics based on low-dimensional quantum materials. Selected awards include DAPRA YFA, NSF Early Career Award, DoE Early Career Award, Cottrell Scholar Award, and IUPAP Young Scientist Prize in Semiconductor Physics.


Session 12


Chaos-assisted momentum transformation in a high-Q microresonator

Yun-Feng Xiao Peking University, China

Confinement and manipulation of photons using microcavities have triggered intense research interest in both fundamental and applied photonics for more than two decades. Prominent examples are ultrahigh-Q whispering gallery microcavities which confine photons by means of continuous total internal reflection along a curved and smooth surface. The long photon lifetime, strong field confinement, and in-plane emission characteristics make them promising candidates for enhancing light-matter interactions on a chip. Recently we developed a new type of on-chip whispering gallery microcavity which supports both highly asymmetric far-field patterns and ultra-high-Q factors exceeding 100 million. These microcavities not only offer highly directional emission desired for various important applications, but also hold great potential to test classical and quantum chaos because they behave like open billiard systems.

BiographyDr. Yun-Feng Xiao received the B.S. and Ph.D. degrees in physics from University of Science and Technology of China in 2002 and 2007, respectively. After a postdoctoral research at Washington University in St. Louis, he joined the faculty of Peking University in 2009, and was promoted a tenured professor in 2014. His research interests lie in the fields of whispering-gallery microcavity optics and photonics. He has authored or co-authored more than 130 refereed journal papers in Science, Nature Photonics, PNAS, PRL, Advanced Materials et al.

Cavity Quantum Electrodynamics in Photonic structures

Ying Gu Peking University, China

Requirements for handling on-chip quantum information and building scalable quantum networks are prompting the development of nanostructure-based cavity quantum electrodynamics (CQED) characterized as strong light confinement. In the weak coupling region, combining the advantages of the gap surface plasmon polaritons with the low-loss nanofibers, we demonstrate theoretically the efficient photon emission of a single dipole emitter and nanoscale guiding in metallic nanorod-coupled nanofilm structures coupled to dielectric nanofibers. While in the strong coupling region, taking the evanescent vacuum as the electromagnetic environment, in which a resonant Ag nanorod (AgNR) is embedded, we theoretically demonstrated the enhanced photon-exciton coupling and the increased fluorescence collection efficiency through the careful optical mode design. We will also report our recent progress in the chiral light-quantum emitter coupling. The CQED at micro/nano scale holds promise for exploring the fundamental physics as well as the applications related to on-chip quantum information and scalable quantum networks.

BiographyStudying at the interface of quantum optics and nanophotonics Full Professer in Peking University

PerovLight: Harness Strong Light-Matter Coupling in Perovskite Materials towards Coherent Excitonic and Polaritonic Lasers

Qihua XiongNanyang Technological University, Singapore

The interaction of light with matter gives rises to a wide range of phenomena that we are familiar with, such as absorption, scattering, and spontaneous or stimulated emission. The electromagnetic field of light polarizes the matter that is responsible for many linear or nonlinear optical processes, which lay down the foundation of a wide range of photonic and optoelectronic devices that have modernized our life and society. In this talk, I will first introduce the vapor phase synthesis of high quality inorganic-organic or all-inorganic perovskite crystals. Those crystals exhibit regularly


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hexagon or square facets with sufficiently large laser damaging threshold while the emission edge can be tuned from ultraviolet to near-infrared. Steady-state and transient spectroscopy approaches can elaborate the exciton binding energy and excitonic emission nature at room temperature. Optically pumped photonic lasing based on the intrinsic whispering gallery mode cavity will then be presented, while the lasing quality factor can be as high as 5000 in all-inorganic perovskite crystals. Next, I will present our recent experimental realization of room-temperature polariton lasing in all-inorganic cesium lead chloride perovskite crystals embedded in two distributed Bragg reflectors. The perovskite crystals possess efficient polariton-polariton scattering due to the Wannier-Mott exciton nature with large binding energy. The polariton lasing is evidenced by a superlinear power dependence, macroscopic ground state occupation, and increase of the temporal coherence. Our work advocates the considerable promise of perovskite materials for photonics and nanophotonics applications.

BiographyTBA

Room-temperature continuous-wave operation of perovskite lasers

Qing Gu The University of Texas at Dallas, USA

Solution-processed organic-inorganic lead halide perovskites have recently emerged as promising gain media for tunable semiconductor lasers, and have come to rival inorganic III-V group semiconductors as the material candidate for chip-scale lasers. Although electrically pumped lasing at room temperature is the ultimate goal, optically pumped continuous-wave lasing at room temperature – a prerequisite for a laser diode – has not been achieved so far. Here, we report lasing action in a surface emitting distributed feedback methylammonium lead iodide (MAPbI3) perovskite laser on silicon substrate, at room temperature under continuous-wave optical pumping, in ambient air environment. This outstanding performance is achieved by the ultra-low lasing threshold of 13 W/cm2, which is enabled by the thermal nanoimprint lithography that directly patterns perovskite into a high Q cavity with large mode confinement, while at the same time improves perovskite’s emission characteristics. Our results represent a major step toward the realization of perovskite laser diodes, which is essential in the future insertion of perovskite lasers into photonic integrated circuits, for applications in optical computing, sensing and on-chip quantum information.

BiographyQing Gu is an Assistant Professor of Electrical and Computer Engineering at the University of Texas at Dallas since 2016. She received the Bachelor’s degree from the University of British Columbia, Canada in 2008, and the Ph.D. degree from the University of California, San Diego in 2014, both in Electrical Engineering. Her research interests include the design, fabrication and characterization of nano- and microscale photonic devices (such as lasers, waveguides and sensors), novel light-emitting materials and optical cavity configuration, quantum behavior analysis in nanostructures, and integrated photonic circuits. She is the author of book “Semiconductor Nanolasers” by Cambridge University Press, published in 2017.

Electrically-driven single-photon sources based on colloidal quantum dots

Wei Fang Zhejiang University, China

Single-photon sources are indispensable for photonic quantum information technologies. For practical applications, compact as well as scalable single-photon sources, which can operate at room temperature and be electrically excited and controlled, are highly desirable. Though great efforts had been devoted to develop room-temperature and electrically driven single-photon sources. However, g(2)(0) of demonstrated devices were far from being ideal.


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Here we explored a single CdSe/CdS core/shell colloidal quantum dot as a quantum emitter in electrically driven single-photon source at room temperature. The solution processed device consisted of isolated quantum dots embedded in a PMMA layer between the hole-transport and electron-transport layers. The turn-on voltage of the device was as low as 1.9 V. When the applied voltage was 2.6 V, the second-order temporal correlation function (g(2)(τ)) of a single quantum dot was measured by the Hanbury Brown and Twiss (HBT) method. The g(2)(0) was smaller than 0.05 at zero delay without any spectral filtering or background correction, which indicated the generation of high-purity single photons.

The highly suppressed multi-photon-emission probability was attributed to both novel device design and carrier injection/recombination dynamics. The device structure allowed efficient electro-excitation of isolated quantum dots and excluded background emission from the hole-transport and electron-transport layers. A quantitative model was developed to illustrate the carrier injection/recombination dynamics of single-dot electroluminescence. The results revealed that the bi-exciton formation was greatly suppressed due to the unique electro-excitation dynamics.

BiographyWei Fang received his B.S. degree in Physics from Peking University in 1999, and PhD degree in Physics from Northwestern University (Evanston, US) in 2006. He is currently an associate professor in the College of Optical Science and Engineering at Zhejiang University. He has authored more than 50 refereed journal papers. His research focuses on nanophotonics and quantum light sources.

Exciton-Polaritons in Atomically Thin Crystals on Sub-Wavelength Thick Photonic Resonators

Long Zhang University of Michigan, USA

Monolayer transition-metal dichalcogenides (TMDs) have strong exciton absorption and large binding energy. At the same time, they are readily integrated with other 2D materials and various photonic structures. They are well suited for creating compact, versatile, high-temperature polariton systems. TMD-polaritons have been reported in Fabry-Perot (FP) cavities and plasmonic structures. Yet FP cavities are bulky and infelxible, while plasmonic structures are intrinsically lossy.

Photonic crystals (PCs) provide a powerful platform for both designability and high cavity quality. Photon lasing in the weak coupling regime has been reported in TMDs on a defect cavity in a 2D PC. We report here strong coupling between TMDs and sub-wavelength thick 1D PCs. Polariton modes are confirmed by mode anti-crossings in both reflectance and photoluminescence measurements up to room temperature. Non-radiative decay to dark excitons was suppressed due to polariton enhancement of the radiative decay. Similar to those in FP cavities, the polaritons have a quadratic dispersion with a meta-stable ground state at zero in-plane wavenumber k. Unlike in FP cavities, the dispersion is highly anisotropic in k and the reflectance features adjustable Fano resonances. These features may facilitate high temperature polariton condensation in variable dimensions.

The new polariton system is a fraction of wavelength in thickness, easy to fabricate, with many design parameters available for mode engineering. Combined with the many unique properties of 2D materials and robust coherence by strong light-matter coupling, the system promises new physics and device applications.

BiographyLong Zhang works as a Postdoctoral Researcher in Prof. Hui Deng’s group at the University of Michigan, from 2015 to present. He received the Ph.D. degree under the supervision of Prof. Zhanghai Chen in the physics department of Fudan University in 2015. His research focused on polariton condensation in low dimensional microcavity system and coupled quantum gases of polaritons. Now he extends his interests to novel strong coupling system based on 2D transition metal dichalcogenide semiconductors.


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Infrared photodetector based on 2D materials: progress, challenges, and opportunities

Weida Hu Shanghai Institute of Technical Physics, CAS, China

Infrared photodetectors based on traditional thin-film semiconductors such as InGaAs, InSb, and HgCdTe as well as novel type-II superlattice exhibit highly sensitive detection capability. However these devices always need to work at low temperature, resulting in an additional large and expensive cooling system. Recently, 2D materials have attracted tremendous attention owing to their bandgap tunability and potential optoelectric applications. Nevertheless, as a photoconductive detector, the signal-to-noise ratio could be very low without the suppression of dark current. Meanwhile, the performance of 2D photodetectors is strongly affected by surface states resulting in the restricted electron-hole separation efficiency, and intrinsic ultrathin absorption thickness of 2D photodetectors suffers the low quantum efficiency.

In this talk, we review the progress on infrared photodetectors based on 2D materials in my group. We fully exploit the detection ability of 2D materials by introducing localized-field, including ferroelectric filed, vertical heterojunction field, p-n junction photovoltaic field and so forth. With a strong induced localized-field, high performance photodetectors based on Graphene, TMDs, Black phosphorus, Black arsenic-phosphorus etc. in infrared wave band may lead to a disruptive revolution in prospective low dimensional optoelectronic devices. Finally, we deliver an outlook, discuss the challenges and future directions, and give general advice for designing and realizing novel high-performance infrared photodetectors to provide a guideline for the future development of this fast-developing field.

BiographyWeida Hu received his B. S. and M. S. degree in Material of Science from Wuhan University of Technology, Wuhan, China, in 2001 and 2004, respectively, and Ph.D. degree (with honors) in Microelectronics and Solid-State electronics from the Shanghai Institute of Technology Physics, Chinese Academy of Sciences, in 2007. He is currently a full professor (Principal investigator) on fabrication and characterization of infrared photodetectors/photodiodes/phototransistors in Shanghai Institute of Technology Physics, Chinese Academy of Sciences. He has authored or coauthored more than 110 technical journal papers and conference presentations. He received the National Science Fund for Distinguished Young Scholars in 2017, National Science Fund for Excellent Young Scholars in 2013, and National Program for Support of Top-notch Young Professionals (Ten Thousand Talents Program for Young Talents) in 2015. He is selected as the Royal Society-Newton Advanced Fellowship in 2017. He is also serving as the Associate Editor of Infrared Physics & Technology, the Executive Editor of Optical and Quantum Electronics, the Program Committee of SPIE DCS Defense and Security - Infrared Technology and Applications (USA), and the Program Committee of the International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD).

Recent Progresses in Microwave Photonics Imaging Radar

Chen ChenYale University, USA

Diverse optical properties and potential photonic applications of various two-dimensional (2D) materials have attracted significant attention from optical community. Different 2D materials exhibit various optical properties. For example, metallic graphene interacts with light strongly in a broad wavelength range from terahertz to violet. Semiconducting transition metal dichalcogenides (TMDCs) such as molybdenum disulfide exhibit very interesting valley-selective light emission properties in visible. Narrow gap black phosphorus, in contrast to graphene and semiconducting TMDCs, is particularly suitable for applications in infrared.

In this talk, we will first address the physics of light excitation of collective oscillations of the carriers, i.e., plasmons in graphene and discuss the applications of graphene plasmonic devices in mid-infrared and terahertz wavelength range. Then we will present the fundamental optical properties of recently rediscovered black phosphorus, which is a narrow gap semiconductor and serendipitously bridges the zero-gap graphene and the relatively large-bandgap transition metal


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dichalcogenides such as molybdenum disulfide (MoS2). The applications of black phosphorus in infrared photonics and a few promising future research directions will also be covered. Finally, we will discuss our recent findings on the symmetry-controlled electron-phonon interactions in engineered two-dimensional (2D) material/silicon dioxide (SiO2) van der Waals heterostructures, which is revealed by probing the new Raman modes in the heterostructures.

BiographyChen Chen is a PhD student in Department of Electrical Engineering at Yale University. He received the B.S. degree in physics from Fudan University in 2016. His current research focuses on fundamental optical properties and photonics applications of low-dimensional materials.

Chiral-reversing vortex radiation from a single emitter by eigenstates phase locking

Renmin MaPeking University, China

The radiation of an emitter does not depend only on its intrinsic properties but also on the surrounding photonic environment, the notion of which is essential in the developments of lasers, quantum optics and other light-matter interaction related fields. However, in conventional wisdom, an emitter radiates into photonic eigenstates in the weak coupling regime and does not alter the property of the latter. Here, we report a counterintuitive phenomenon where the radiation field of a dipole in a parity-time symmetric ring resonator displays the opposite handedness to the eigenstates of the system. This chiral-reversing radiation takes place at an exception point of the underlying non-Hermitian system, where the singularity at the exceptional point forces a phase locking of the coalesced eigenstates when interacting with the dipole emitter. Such an intriguing phenomenon has been employed to construct vortex radiation with controllable topological charge from a single quantum dot embedded plasminic nanocavity with Purcell enhancement factor up to 1000. Our scheme enriches the interesting physics of an exception point in the quantum region and may open a new paradigm for chiral quantum optics and vortex lasers at nanoscale.

BiographyProfessor Ren-Min Ma is a youth 1000 plan assistant professor at school of physics, Peking University. He received the Ph. D. degree in Physics from Peking University, China in 2009. His dissertation was focused on nanoscale optoelectronic devices and physics and received the national top 100 Ph.D. dissertations of China award. He was a postdoc researcher at UC Berkeley during 2009 to 2014 before joining Peking University as a faculty. He published over 40 peer reviewed papers, including these on Science, Nature, Nature Materials, Nature Nanotechnology, Nature Communications and Science Advances, which received over 4500 citations. He demonstrated some of the first kinds of nanoscale lasers and applied the plasmonic nanolasers to sensing field with record performance. He experimentally addressed a long-standing question debated among the nanophotonics community of whether plasmonic effect harms or improves a laser performance.


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CIOP2018-2017-000316 High Performance Single Crystalline Perovskite Thin Film Photodetector Zhenqian Yang1; Yuhao Deng1; Xiaowei Zhang1; Suo Wang1; Huazhou Chen1; Sui Yang2; Jacob Khurgin3; Nicholas X. Fang4; Xiang Zhang2; Renmin Ma1 ｜ 1 Peking University, China 2 University of California, Berkeley, USA 3 Johns Hopkins University, USA 4 Massachusetts Institute of Technology, USAImprovement of optoelectronic device performance by using single crystalline perovskite thin film is demonstrated by a photodetector. The simultaneously optimized perovskites thickness and crystallinity lead to 70 GHz gain-bandwidth product and 200 photons detection limit.

CIOP2018-2017-000136 SnS2 nanosheet coated microfiber knot resonator for all-optical control of light functionality with fast response Zhongmin Wang; Wentao Qiu; Jun Tao; Zhijin Huang; Hanqing Xiong; Heyuan Guan; Jiangli Dong; Huihui Lu; Wenguo Zhu; Jianhui Yu; Yongchun Zhong; Yunhan Luo; Jun Zhang; Zhe Chen ｜ Jinan University, ChinaAll-optical control of light is realized by a violet laser tuning amplitude in a SnS2 coated microfiber knot resonator structure. A sensitivity of 0.22 dB/mW and a fast response time of 3.2 ms is obtained.

CIOP2018-2017-000068 Influence of the evanescent waves on the imaging characteristics of microspheres Fengge Wang; Yong-Hong Ye; Yurong Cao; Songlin Yang; Xiaoqing Wang; Jianguo Wang ｜ Nanjing Normal University, ChinaWe add a 20-nm-thick SiO film which can significantly enhance the evanescent waves between a fully immersed BTG microsphere and the sample and study its imaging properties. Compared with a fully immersed BTG microsphere, the magnification becomes larger, and the image position is farther away from the sample. Our results demonstrate that evanescent waves have an impact on the imaging characteristics of microspheres. When microspheres are used to observe small objects which are close to or smaller than the diffraction limit, their imaging rules no longer satisfy the imaging rules of geometrical optics. Our studies will help to understand the imaging rules of microspheres more comprehensively.

CIOP2018-2017-000202 Graphene-Coated Microsphere Resonators and Their Photothermal Effect Chenzhi Yuan; Yidong Huang; Wei Zhang ｜ Tsinghua University, ChinaGraphene-coated silica microsphere resonators with Q values of ~105 are fabricated. Their photothermal effect is investigated experimentally. Resonance frequency shift with high shifting slope and bistability with low threshold and high switching contrast are observed.

CIOP2018-2017-000065 Largely tunable compact coupler with high directionlity Futai Hu ｜ Tsinghua University, ChinaWe propose a set of ultracompact graphene-assisted waveguide couplers with high directionality and mode-selectivity around 1.55 μm The operation wavelength can be tuned across a 115 nm range.

Oral Talks


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CIOP2018-2017-000008 Nano-photonics from nanoparticles to nanowires Xianguang Yang; Baojun Li ｜ Jinan University, ChinaThe nanoparticle-doped polymer nanowires are fabricated by direct drawing the mixed solution of nanoparticles and polymer, the optical properties with respect to light emission, propagation, conversion, modulation and detection are systematically studied [1-8].

CIOP2018-2017-000187All-dielectric valley photonic crystals: Paving the way to topological nanophotonics Jian-Wen Dong; Xin-Tao He; Xiao-Dong Chen ｜ Sun Yat-Sen University, ChinaIn this talk, I will show our recent works about realization of all-dielectric valley photonic crytals from theory to experiment, not only in microwave range but also in telecommunication wavelength. These works may open up an alternative route towards the discovery of topological nanophotonics.

CIOP2018-2017-000146 Doped-polymer microfiber: an assistant waveguide for assembling photonic components with fluorescent indication Dingxin Liang; Xining Zhang; Zhijun Wu; Jixiong Pu ｜ Huaqiao University, ChinaWe demonstrate a new approach to assemble micro/nano waveguiding photonic components based on fluorescent indicator. The fluorescence of the dye-doped polymer microwire is excited by evanescent coupling method and used to indicate the light path in the microwire.

CIOP2018-2017-000066 Reduced distortion in high-index microsphere imaging by partial immersion Songlin Yang; Xiaoqing Wang; Yong-Hong Ye ｜ Nanjing Normal University, ChinaWe experimentally demonstrate that the pincushion distortion is obvious when using a BaTiO3 glass (BTG) microsphere totally immersed in ethanol or SU-8 2002 resist to image a Blu-ray disk with sub-diffraction features. The distortion is related to the layer thickness of the immersing medium. For a BTG microsphere partially immersed in the SU-8 resist where the SU-8 thickness is around 4/5 the diameter of the microsphere, its distortion will decrease dramatically, while it can still clearly resolve the Blu-ray disk. For such a partially immersed microsphere, the calculated position of the photonic nanojet is outside the microsphere and close to the object, indicating the microsphere has the super-resolution imaging property, and the distortion simulated by ZEMAX is also decreased.


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Invited Talks

The Physics and Applications of High Q Optical Microcavities: Cavity Quantum Optomechanics

Tobias J. KippenbergEcole polytechnique fédérale de Lausanne (EPFL), Switzerland

The mutual coupling of optical and mechanical degrees of freedom via radiation pressure has been a subject of interest in the context of quantum limited displacements measurements for Gravity Wave detection for many decades. The pioneering work of Braginsky predicted that radiation pressure can give rise to dynamical backaction, which allows cooling and amplification of the internal mechanical modes of a mirror coupled to an optical cavity and moreover establishes a fundamental measurement limit via radiation pressure quantum fluctuations. Experimentally these phenomena remained however inaccessible many decades due to the faint nature of the radiation pressure force. A decade ago, it was discovered that optical microresonators with ultra high Q, not only possess ultra high Q optical modes, but moreover mechanical modes that are mutually coupled via radiation pressure. The high Q of the microresonators, not only enhances nonlinear phenomena – which enables for instance optical frequency comb generation as well as temporal soliton formation – but also enhances the radiation pressure interaction. This has allowed the observation of radiation pressure phenomena in an experimental setting and is an underlying principle of the research field of cavity quantum optomechanics.

In this talk, I will describe a range of optomechanical phenomena that we observed using high Q optical microresonators. Radiation pressure back-action of photons is shown to lead to effective cooling of the mechanical oscillator mode using dynamical backaction. Sideband resolved cooling, combined with cryogenic precooling enables cooling the oscillators such that it resides in the quantum ground state more than 1/3 of its time. Increasing the mutual coupling further, it is possible to observe quantum coherent coupling in which the mechanical and optical mode hybridize and the coupling rate exceeds the mechanical and optical decoherence rate. This regime enables a range of quantum optical experiments, including state transfer from light to mechanics using the phenomenon of optomechanically induced transparency. Moreover, the optomechanical coupling can be exploited for measuring the position of a nanomechanical oscillator in the timescale of its thermal decoherence, a basic requirement for preparing its ground-state using feedback as well as (Markovian) quantum feedback. This regime moreover enables to explore quantum effects due to the radiation pressure interaction, notably quantum correlations in the light field that give rise to optical squeezing or sideband asymmetry.

The optomechanical toolbox developed in the past decades enables to extend quantum control, first developed for atoms, and recently for superconducting quantum circuits, to be extended to solid state mechanical oscillators. New frontiers that are now possible include for example the generation of nonclassical states of motion via post-selection, mechanical quantum squeezing, or interfaces from radiofrequency to the optical domain. Time, permitting, recent experiments that probe cavity optomechanics reserved dissipation regime in a microwave opto-mechanical system will be discussed, which provide a means to realize a cold dissipative reservoir for microwave light a building block for non-reciprocal devices.

BiographyTobias J. Kippenberg is ordinary Professor in the Institute of Physics at EPFL in Switzerland since 2013 and joined EPFL in 2008 as Tenure Track Assistant Professor. Prior to EPFL, he was Independent Max Planck Junior Research group leader at the Max Planck Institute of Quantum Optics in Garching. While at the MPQ he demonstrated radiation pressure cooling of optical micro-resonators and developed techniques with which mechanical oscillators can be cooled, measured and manipulated in the quantum regime that are now part of the research field of Cavity Quantum Optomechanics. Moreover, his group discovered the generation of optical frequency combs using high Q micro-resonators, a principle known now as micro-combs or Kerr combs. For his early contributions in these two research fields, he has been recipient of the EFTF Award for Young Scientists (2011), The Helmholtz Prize in Metrology (2009), the EPS Fresnel Prize (2009), ICO Award (2014), Swiss Latsis Prize (2015), as well as the Wilhelmy Klung Research Prize in Physics (2015) and the 2018 ZEISS Research Award. Moreover, he is 1st prize winner of the “8th European Union Contest for Young Scientists” in 1996 and is listed in the 2015 Thomson Reuters List of 1% most cited Physicists in 2014-2017. He is founder of the startup LIGENTEC SA, an integrated photonics foundry.



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Topological and nonreciprocal dynamics in an optomechanical system

Haitan XuHarvard University, USA

Non-Hermitian systems exhibit rich physical phenomena that open the door to qualitatively new forms of control. Here I will introduce our recent work on topological and nonreciprocal dynamics in a non-Hermitian optomechanical system [Nature 537, 80 (2016)]. Specifically, we realized topological energy transfer between nearly degenerate modes by adiabatically encircling an exceptional point (a singularity of the complex spectrum). We also demonstrated that this energy transfer is non-reciprocal: a given topological operation can only transfer energy in one direction. We have extended the topological and nonreciprocal dynamics to highly non-degenerate modes by exploiting a generic form of nonlinearity, which should allow these effects to be exploited in a very wide range of physical systems.

BiographyHaitan Xu is currently a postdoc at Harvard University. He received his Ph.D. degree from University of Maryland - College Park in 2014, and B.Sc. and M.Sc. degrees from Zhejiang University in 2007 and 2009. He was a postdoc at Yale University for three years from 2015 to 2018. He is both an experimentalist and a theorist, with research experience in multiple fields including optomechanics, topological physics, and quantum computation.

Radiation Pressure Induced Four-Wave Mixing

Yongmin LiShanxi University, China

Nonlinear optics plays a key role in modern technology, which finds broad applications in fields ranging from new sources of coherent light, optical communications, detection, to imaging. Four-wave mixing (FWM) is a typical nonlinear optical effect observed in a wide variety of media including atoms, fibers and grapheme. We demonstrate here a tunable multimode FWM process enabled by radiation pressure coupling between two optical and multiple mechanical modes in an unresolved-sideband optomechanical system. The FWM mechanism enables remarkable amplification of a weak signal beam with ultralow added noise, accompanied by generation of an FWM field when only microwatt-level pump field is applied. The magnification and the frequency response characteristic of the FWM can be dynamically tuned by varying the detuning and intensity of the pump beam. In our device, we achieved a signal intensity magnification of more than 40 dB and a frequency response linewidth of less than 9 Hz. The proposed optomechanical FWM model is applicable to a broad range of electromagnetic spectrum including the microwave band; provides a route to achieve an optical system with ultra-narrow linewidth in a compact device.

BiographyDr. Yongmin Li received the B.S. degree in material physics and the Ph.D. degree in optics from Shanxi University, Taiyuan, China, in 1998 and 2003, respectively. He is currently a Professor at the Institute of Opto-Electronics, Shanxi University. His current research interest is quantum optics and quantum communication.

Cavity optomechanical systems with ultralow masses based on photonic crystal cavities

Jinsong XiaHuazhong University of Science and Technology, China

Through integrating nanomechanical resonators into cavity optomechanical systems and detecting the mechanical movements by cavity optomechanical coupling, cavity optomechanical systems with ultralow masses can be formed. Silicon-based on-chip integrated cavity optomechanical systems with ultralow masses based on photonic crystal microcavities have the advantages of small size, on-chip integration, large-scale and low-cost production, making them promising in the fields of sensing and ultra-sensitive measurements. Firstly, through embedding a nanomechanical


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resonator into a photonic crystal nanobeam cavity, we design and experimentally demonstrate a silicon-based on-chip integrated cavity optomechanical system with an effective mass of 6.42 femtograms. With the method of cavity optomechanical coupling, the device achieves displacement detection sensitivity of 0.13fm/ Hz in air and at room temperature. Then we design and demonstrate a novel silicon-based air-mode photonic crystal microcavity with an experimental optical Q-factor of 3.70×105. And we develop a nano-patterning process of suspended graphene. With this process, a double clamped nanomechanical resonator made of single-layer graphene is fabricated in the center hole of the air-mode photonic crystal microcavity. A silicon-based on-chip integrated cavity optomechanical system with an effective mass of 6.17 attograms is achieved. Besides, we design and demonstrate a silicon-based on-chip integrated cavity optomechanical system working in water. The device achieves displacement detection sensitivity of 9.33am/ Hz in water. The device has an effective mass of 139 femtograms and can achieve a mass sensitivity of 1.33ag/ Hz with thermal excitation. As a mass sensor, the device can be applied in the field of mass sensing where liquid environment is needed.

BiographyJinsong Xia received the B. S. degree in applied physics from University of Science and Technology of China (USTC) in 1999, and Ph.D. degree in microelectronics and solid-state electronics from Institute of Semiconductors, Chinese Academy of Science (CAS) in 2004. Since 2004, he has been with the Advanced Research Laborotaries, Tokyo City University as a post-doctoral researcher and associate researcher. In 2010, he joined the Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), China, where he is currently a professor and director of the Optoelectronic Micro&nano Fabrication and Characterizing Facility (OMFC). His research interests include Si photonics and nano photonics, including metasurface, photonic crystal, microcavities, and waveguide devices. He has published 80+ jounal papers and 20+ conference talks together with 15+ invited talks. He has won the JSAP 2010 Outstanding Paper Award.

A phonon laser operating at the exceptional point

Jing ZhangTsinghua University, China

Non-Hermitian physical systems have attracted considerable attention lately for their unconventional behaviour around exceptional points (EPs). In particular, many novel EP-related concepts such as unidirectional lasing and invisibility and chiral transmission have been realized. Given the progress in understanding the physics of EPs in various photonic structures, it is surprising that one of the oldest theoretical predictions associated with them, i.e., a dramatic broadening of the laser linewidth, has remained out of reach of experiments so far. Here, we fill this gap by steering a phonon laser through an EP in a compound optomechanical system formed by two coupled resonators. We observe a pronounced linewidth broadening of the mechanical lasing mode generated in one of the resonators when the system approaches the EP. This is the first time, to our knowledge, that the linewidth broadening of a laser at an EP is explicitly demonstrated.

BiographyJing Zhang received his B.S. degree from Department of Mathematical Science and Ph.D. degree from Department of Automation, Tsinghua University, Beijing, China, in 2001 and 2006, respectively. From 2006 to 2008, he was a Postdoctoral Fellow at the Department of Computer Science and Technology, Tsinghua University, Beijing, China. He was a Visiting Researcher from 2008 to 2009 at the Advanced Science Institute, the Institute of Physical and Chemical Research (RIKEN), Japan, and a Visiting Researcher from 2014 to 2015 at Washington University in Saint Louis. He is now an Associate Professor at the Department of Automation, Tsinghua University, Beijing, China. He once received the NSFC Excellent Young Scholar Award in 2016, and Changjiang Scholar for Young Scholars of the Chinese Ministry of Education in 2017. His research interests include quantum control and micro/nano photonics.

Optical nonreciprocity in optomechanical systems

Yong LiBeijing Computational Science Research Center, China

The fundamental role of nonreciprocal transmission in information processing has been demonstrated fully by the important application of electrical diodes/transistor in electronic information technology. However, optical nonreciprocity is usually constrained by the Lorentz reciprocal theorem due to the time-reversal symmetry in linear and nonmagnetic media. We investigate the optical nonreciprocal responses of optical diode and optomechanical circulator in a multi-


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mode optomechanical system where one/two mechanical mode(s) are optomechanically coupled to two linearly coupled optical modes simultaneously. These optical nonreciprocal behaviors are induced by the phase difference between the two optomechanical coupling rates, which breaks the time-reversal symmetry of the three-mode optomechanical system. Moreover, we achieve the optomechanically induced unidirectional amplification in the similar optomechanical system with adding a mechanical pump.

BiographyYong Li received his M.D. 2001 at Wuhan Institute of Physics and Mathematics of Chinese Academy of Sciences (CAS) and Ph.D. in 2004 at Institute of Theoretical Physics of CAS. During 2004-2010, he carried out post-doctoral research at Institute of Theoretical Physics and Interdisciplinary Center of Theoretical Studies of CAS, University of Basel, and University of Hong Kong. He successively became a tenure track and tenured professor in 2010 and 2017 at Beijing Computational Science Research Center. His main research interests focus on the quantum optics issues based on the atomic ensemble and micro-/nano-mechanical resonators, including the ground-state cooling of mechanical resonators and optical nonreciprocity in optomechanical systems. Dr. Li has published about 80 refereed articles.

Optomechanically-induced transparency enhanced by dissipation

Yong-Chun LiuTsinghua University, China

Controlling the ubiquitous dissipation is an important task in many fields of physics. For quantum-optically-coupled systems, coherent interaction requires stringent control of dissipation, and numerous efforts have been devoted to reduce unwanted dissipation, for example, by designing structures less susceptible to dissipations. However, it is generally difficult to completely remove dissipation, and residual dissipation always exists. Conversely, we discover a rather counter-intuitive result that shows dissipation can be utilized as a resource, for a general class of optomechanical systems. Phenomena such as optomechanically-induced transparency and slow light are found to be enhanced with the increase of cavity dissipation. We find that stronger cavity dissipation leads to enhanced transparency peak and even amplification, as well as steeper slope and larger group delay in the spectra. Against to the pursuit for the resolved sideband limit, we show that the unresolved sideband regime provides an even better platform for realizing optomechanically-induced transparency and slow light. These desirable features are in stark contrast to the results from earlier studies, and they implicate significant potentials for applications, with easily realizable improvements as high as several orders of magnitude. Furthermore, our study opens up a new avenue for making use of dissipation in optomechanical systems, which is also instructive for investigating the positive role of dissipation in other physical systems.

BiographyYong-Chun Liu is a tenure-track assistant professor at Tsinghua University. He received the Doctor’s degree from Peking University in 2015. His research interests include quantum optics, micro- and nano-optics. He has published more than 40 papers, which are cited over 1000 times.

Phononic Quantum Networks of Solid-State Spins in Diamond

Hailin WangUniversity of Oregon, USA

We have developed a phononic quantum network of solid-state spins, in which closed mechanical subsystems are coupled together via spin qubits. This new network architecture overcomes the inherent obstacles in scaling phononic quantum networks and avoids the technical difficulty of employing chiral spin-phonon interactions, thus providing a promising route for developing quantum computers using robust solid-state spin qubits. We discuss the implementation and fabrication of a diamond-based phononic network, using spin-mechanical resonators that couple spin qubits to relevant mechanical modes, phononic crystal waveguides, and a two-dimensional phononic crystal lattice that protects the mechanical modes involved in the phononic network.

A key element of the implementation is the use of alternating phononic crystal waveguides that feature specially-designed band gaps, enabling the formation of a closed subsystem between any two adjacent mechanical resonators in


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the network and the waveguide between them. The implementation also includes quantum state transfer between single spins or spin ensembles in neighboring resonators. An ensemble-spin based protocol, which requires a special ratio between the spin-mechanical and waveguide-resonator coupling rates, can be independent of the initial states of all the mechanical modes involved and thus be robust against the thermal environment.

BiographyHailin Wang received B.S. and Ph.D. degrees in physics from the University of Science and Technology of China and the University of Michigan in 1982 and 1990, respectively. From 1991 to 1995, he worked at the University of Michigan and later at the AT&T Bell Laboratories. He joined the University of Oregon in 1995, where he is now a professor of physics and holds the Alec and Kay Keith Chair in Physics. His current research interest includes quantum optics of mechanical and solid-state spin systems and quantum information processing. Dr. Wang is a fellow of the American Physical Society and the Optical Society of America and currently serves as an associate editor for Optica.

Single-Photon-Triggered Quantum Phase Transition

Xin-You LvHuazhong university of science and technology, China

We propose a hybrid quantum model combining cavity QED and optomechanics, which allows the occurrence of equilibrium superradiant quantum phase transition (QPT) triggered by a single photon. This single-photon-triggered QPT exists both in the cases of ignoring and including the so-called A2 term, i.e., it is immune to the no-go theorem. It originally comes from the photon dependent quantum criticality featured by the proposed hybrid quantum model. Moreover, a reversed superradiant QPT is induced by the competition between the introduced A2 term and the optomechanical interaction. This work offers an approach to manipulate QPT with a single photon, which should inspire the exploration of single-photon quantum-criticality physics and the engineering of new single-photon quantum devices.

BiographyI received the Ph.D. degree in physics from Huazhong University of Science and Technology (HUST), Wuhan, China, in 2010. From July 2011 to May 2014, I done the postdoc study in RIKEN as a JSPS postdoctor researcher. I joined school of physics, HUST in July 2014. My research interests include cavity optomechanics, few-photon nonlinear optics and quantum manipulations.

Phase-controlled phonon laser

Yan-Lei ZhangFuzhou University, China

We present a scheme for both enhancing optomechanical couplings into the single-photon strong-coupling regime and realizing the switching between different optomechanical interactions using optical parametric amplifiers (OPAs). The key idea is to put two OPAs into both the auxiliary cavity and the optomechanical system, which leads to the squeezing of transformational optical modes. Due to the squeezing, we can obtain exponentially enhanced radiation-pressure, parametric amplification, and three-mode optomechanical couplings, which are controlled by the phase difference from the two OPAs. As one of applications, we study a phase-controlled ultralow-threshold phonon laser in detail. In addition, we consider the noise of the squeezed modes, which can be suppressed greatly via dissipative squeezing or an additional optical mode. With current experimentally accessible parameters, our scheme should be feasible to study quantum optomechanics. This allows us to explore a number of interesting quantum optomechanics applications ranging from single-photon sources to nonclassical quantum states.

BiographyYan-lei Zhang obtained his B. S. Degree and Ph. D in Optics and Optical Engineering from University of Science and Technology of China in 2010 and 2015, respectively. He went on research as a Postdoctor at key laboratory of quantum information at University of Science and Technology of China (Aug 2015~ Sep2017). Now he works at College of Physics and Information Engineering of Fuzhou University. His current research is focused on the theoretical study about the preparation of non-classical states of atomic ensemble including spin squeezing and macroscopic superposition states, multimode optomechanics, and cavity optomechanics.


Session 13


Levitated optomechanics for precise measurement

Zhangqi YinTsinghua University, China

Optically levitated optomechanics has very high mechanical Q at high vacuum. Its six motional degree could couple to the light at the same time. The motional frequencies and states could be tuned by trapping and driving lasers. Therefore, it could be a ultra-sensitive detector for mass, force, torque, gravity, etc. Here, I will briefly summarize the basic physics and experimental progresses of the levitated optomechanics. Then I will discuss our theoretical proposals on how to realize mass spectrometry, torque balance, gravimeter, etc.

BiographyZhang-Qi Yin is an Assistant Research Fellow at Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University. He received his B.Sc. degree in Applied Physics in 2003, M.Sc. degree in Theoretical Physics in 2006, and Ph.D. degree in Optics in 2009, all from Xi’an Jiaotong University, China.

Optomechanically induced non-reciprocity

Chunhua DongUniversity of Science and Technology of China, China

In this study, the optomechanically induced non-reciprocity is experimentally demonstrated for the first time. Optomechanically induced non-reciprocal transparency and amplification are observed, and a non-reciprocal phase shift of up to 40 degrees is demonstrated in this study. Optomechanically induced non-reciprocity has applications for photonic isolators and circulators, which have been recently demonstrated in our experiment. The underlying mechanism of the non-reciprocity demonstrated here is actually universal and can be generalized to any traveling wave resonators with a mechanical oscillator, such as the integrated disk-type microresonator coupled with a nanobeam.

BiographyDr. Chunhua Dong received a B. S. and Ph. D. from University of Science and Technology of China (USTC) in 2006 and 2011, both in department of physics. He had been as an exchange student in Micro/Nano Photonics and Photonic Materials Laboratory, Washington University in St. Louis during 2008. He worked as a postdoctoral researcher in department of physics & oregon center for optics in university of Oregon for 2 years. Since 2013, he has been a scientific researcher in key lab of quantum information of USTC. The main theme of his research has been fundamental studies of cavity optomechanics and applications in quantum information with an emphasis on microcavity techniques. He has given several invited talks on related topics and written more than 60+ peer-reviewed publications on microcavity and nanophotonics, many of which were the results of collaboration with researchers of diverse backgrounds across the world.

Quantum transistor with a double-cavity-optomechanical system

Ling ZhouDalian University of Technology

Analogous with classical transistor, is of the features of control and amplication. It should be consisted of three ports, emitter, collector and base, where the signal input of base can control the on-off of the emitter and collector, and the output signal of the emitter is amplified compared to the input of the base port. A scheme of quantum transistor by a double-cavity-optomechanical system is proposed, where the input signal of the base port is quantum signal or classical one are discussed respectively. For the case of input quantum signal, to treat the nonlinear trimer interaction, we propose an iterative method when the trimer interaction is weak and show that the transmission is larger than the reection. When the input signal at the base port is classical, we can achieve beam splitter and parametric-down-conversion interaction between collector and emitter respectively under the condition of linear approximation. We calculate the output spectral density and analyze the relations between the base port input and emitter output. Our results show that the input at the base controls the on-o_ between the collector and emitter, and the signal imposed from the base can be amplified. For two cases, the system both can serve as a quantum transistor.


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BiographyDr. Zhou Ling, Professor of the School of Physics, Dalian University of Technology (DUT). She obtained her doctor degree in Physics Department of DUT in 2003 and was promoted to be a professor in 2005. From 2005 to 2006, she worked in Texas A&M University as a visiting scholar for one year.

She has published 103 papers, and the papers were cited 985 times. Her research interest focus on: (1) Study on quantum properties in Cavity Optomechanics. (2) Decoherence and disentanglement in Markovian and non -Markovian environment. (3) Quantum information process. The project “The theoretical research of quantum effects and manipulation in hybrid cavity optomechanical system” supported by NSFC with grant No. 11474044 is doing well and will finished by the end of 2018.

Optomechanical Crystal Nanobeam Cavities with Phonon Lasing

Kaiyu CuiTsinghua University, China

Optomechanical crystals (OM), also known as phoxonic crystals, are combination of photonic and phononic crystals. OM cavity can simultaneously confine light and mechanical motion and results in strong photon-phonon interaction, which provide a new approach to originate and deplete phonons. It is promising for both fundamental science and technological applications, such as mesoscopic quantum mechanics, sensing, transducing, and so on. However, as conventional OM cavities confine the optical and mechanical modes with an identical periodic structure, the optical and mechanical properties are constrained with each other. For instance, when the photonic bandgap of the optomechanical periodic structure is desired for certain wavelength range for practical experiments, such as infrared communication wavelengths, the periodic structure will be decided, which may not suitable for high mechanical frequency.

In this work, we propose hetero OM to break the constraint between the design of optical and mechanical properties. Silicon nanobeam cavity with high optical and mechanical Q-factor is demonstrated experimentally. We also measure the optical spring effect based on our OM nanobeam cavity, which is a dynamical phenomenon arising from the interaction between light and mechanical objects. This phenomenon directly proves that light can increase or decrease mechanical vibration in certain conditions. Finally, phonon laser is realized with mechanical frequency of 5.91 GHz and mechanical Q-factor of 1.1×106, which shows potential applications on high-quality frequency references and high-precision sensing.

BiographyKaiyu Cui works as an associate professor in the Department of Electrical Engineering, Tsinghua University. She received her B.S. degree from Jilin University, Beijing, China, in 2005, and her Ph.D. degree from Tsinghua University, Beijing, China, in 2010, respectively, all in Electrical Engineering. Since 2005, she has been engaging in photonic crystal research, and her current focus of research lies in optomechanical crystals. She serves as Editorial Board Member for Scientific Reports.

On-chip ultraprecise optomechanical magnetometry

Beibei LiUniversity of Queensland, Australia

The resonant enhancement of both mechanical and optical response in microcavity optomechanical devices allows exquisitely sensitive measurements of stimuli such as acceleration, mass and magnetic fields. By incorporating a magnetostrictive material terfenol-D with an optomechanical resonator, highly sensitive magnetometry has been achieved, with sensitivity comparable to that of the similar-sized superconducting quantum interference device (SQUID) based magnetometry, without using cryogenic cooling. In this optomechanical sensor, one of the dominating noise sources is the shot noise from the probe light. We show that by incorporating phase squeezed light into a cavity optomechanical magnetometer, the shot noise can be suppressed. As a result, both the sensitivity and the bandwidth of the sensor are improved.

BiographyBeibei Li got her Ph.D in School of Physics at Peking University. During her Ph.D, she was working on whispering gallery mode microcavities and their applications in Raman lasing and optical sensing, in Prof. Yun-Feng Xiao’s group. Now she is doing postdoctoral research in quantum optics Lab in Prof. Warwick Bowen’s group in University of Queensland. Currently she is working on highly sensitive magnetic field sensing using cavity optomechanics.


Session 13


CIOP2018-2018-000383Dual lasing phononic modes in single optomechanical nanobeamQiancheng Xu, Kaiyu Cui, Yidong Huang | Tsinghua University, ChinaWe demonstrate that two phononic modes at 6.15GHz and 6.18GHz simultaneously behave as a laser action in one silicon optomechanical crystal dual-cavity nanobeam. The pump-power threshold is observed less than 2mW at low temperature.

CIOP2018-2018-000322Interaction between an Optomechanical Crystal Cavity and a Coupled Tapered FiberJian Xiong, Kaiyu Cui, and Yidong Huang | Tsinghua University, China By the simulations of FDTD and FEM, the influence of coupled tapered fiber is analyzed. We found that the frequencies and Q values of the optical field and the acoustic mode will change for the extra mass, extra coupling and the position of tapered fiber.

Oral Talks

Poster Session

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Poster Session

Sessions

Session 1. Photonic Integration and Optical Interconnect p167

Session 2. Advanced Fiber Optics & Sensing Technology p168

Session 3. Biomedical Photonics p173

Session 4. Optical Design and Optical Precision Measurement p177

Session 5. Optical Communications and Networks p181

Session 6. Optical Imaging and Holography p184

Session 7. Plasmonics and Metamaterials p191

Session 8. Lasers and Nonlinear Optics p195

Session 9. Quantum Optics and Quantum Information Technology p201

Session 10. Laser Micro-Nano Processing and Fabrication p201

Session 11. Microwave Photonics p204

Session 12. Nano Photonics and 2D Optoelectronics p205

Session 13. Cavity Optomechanics p207

1. Photonic Integration and Optical Interconnect

CIOP2018-2018-000013Temporal processing based on time lens in a silicon–organic hybrid slot waveguideXie Peng ｜ University of Chinese Academy of Sciences, ChinaWe focus on research on time lens technology based on four wave mixing in silicon waveguides, which is used for ultrashort pulse generation and measurement of ultrafast optical signal on photonic integration chips.

CIOP2018-2018-000024Low cost and non-hermetic 100-Gb/s CWDM4 TOSA with Silica-PLC AWG MultiplexerJ. Liua; Q. Z. Huang; J. S. Xia ｜ Huazhong University of Science and Technology, ChinaA low cost and non-hermetic hybrid-integrated 4 × 25.78 Gb/s TOSA was proposed for 100-G CWDM4 application. Experimentally, we demonstrated the TOSA could achieve error-free up to 10 km transmission at 25 ℃ .

CIOP2018-2018-000168Optofluidic Driving Technology with the Piezoelectric CeramicsJiangyun Miao; Jing Wan; Feng Sun; Mingxian Guo; Zhaosong Wang ｜ Nanjing University of Posts and Telecommunications, ChinaOptofluidic driving technology with the piezoelectric ceramics is proposed. It possesses advantages of small volume, simple structure, fast response speed and easy operation. The work here can promote development of Optofluidic driving technology and Optofluidics.

Poster Session

Poster


CIOP2018-2018-000182High-Q in-plane channel drop filter based on two-dimensional photonic crystals for dense wavelength division multiplexingYuyang Zhuang; Heming Chen; Yuchen Hu; Ke Ji ｜ Nanjing University of Posts and Telecommunications, ChinaWe proposed a high-Q in-plane channel drop filter using photonic crystal cavities that are defined by an effective Aubry-André-Harper bichromatic potential. The filter can be applied in a dense-wavelength-division-multiplexing system with a 100-GHz channel spacing.

CIOP2018-2018-000222Semiconductor laser passive fiber coupler designed based on ZEMAXCheng Xin; Renyu Liu; Dali Zhang ｜ Southwest University of Science and Technology, ChinaIn view of the low optimization degree of the divergence angle of the traditional cylindrical coupling device on the meridian surface, a spherical passive optical fiber coupling device was simulated using zemax software.

CIOP2018-2018-000239Injection-locked laser amplifier by thin-film distributed feedback microcavitiesMeng Wang; Xinping Zhang ｜ Beijing University of Technology, ChinaInjection mode locking technique was applied by injecting femtosecond supercontinuum pulses into a polymer-coated DFB microcavity. The injection-locked amplifier supplies easily recollimatable laser beam with excellent transverse mode at different wavelength adjusted by injected angle.

2. Advanced Fiber Optics & Sensing Technology

CIOP2018-2018-000016A long-period fiber grating based on temperature sensor with high sensitivity and linearity to parameter of interference troughJin Wang; Li Wang; HuanHuan Yan ｜ Beijing University of Technology, ChinaWe propose a temperature sensor based on long-period fiber grating with high sensitivity of 0.083nm/℃ in the range of 40℃ -120℃ and linearity to parameter of interference trough.

CIOP2018-2018-000020Polarimetric fiber laser sensor for multi-parameter measurementXiujuan Yu; Yunxin Hu; Xuefeng Chen; Jintao Zhang; Shengchun Liu ｜ Heilongjiang University, ChinaA polarimetric fiber laser is proposed for multi-parameter sensing. It can be used to simultaneously measure temperature, strain and birefringence change by monitoring the frequency shift of longitudinal mode beat and polarization mode beat signals.

CIOP2018-2018-000032The investigation for the influence of the line-width of probe light on the phase noise of phase-sensitive optical time domain reflectometryChaoli Liang; Yang Lu; Xueliang Zhang; Mo Chen; Jianfei Wang; Zhou Meng ｜ National University of Defense Technology, ChinaThe influence of the line-width of probe light on the phase noise of a φ-OTDR is theoretical analyzed and experimentally investigated, which reveals that the phase noise level increases as the line-width of the probe light broadens.

Poster Session

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CIOP2018-2018-000047Nonuniform fringe characteristics of cascaded symmetrically chirped long-period fiber gratingsQiuping Huang; Qiuping Huang ｜ Zhejiang Normal University, ChinaWe propose a novel fiber structure of cascaded symmetrically chirped long-period fiber gratings. The transmission spectrum is featured as a nonuniform fringe pattern with monotonically increasing fringe spacing.

CIOP2018-2018-000050Leakage Detection and Location Analysis of Tap Water Pipeline Based on Distributed Optical Fiber Temperature MeasurementYa Zhao1; Qiang Wang1; Zhangwei Ling2 ｜ 1 China Jiliang University, China; 2 Zhejiang Provincial Special Equipment Inspection and Research Institute, ChinaA distributed optical fiber temperature measurement system based on Raman scatter and optical time domain reflecting (OTDR) is used to detect and locate the leakage of tap water pipeline.

CIOP2018-2018-000052Application of Segmentation Threshold Method and Wavelet Threshold Denoising Based on EMD in Φ-OTDR SystemXiaxiao Wang; Fu Ma; Jia Yu; Xin Liu; Tingting Wang; Wenxia Zhang ｜ Beihang university, ChinaOn the basis of without taking in new technology or increasing cost of the system, the sensing distance of Φ-OTDR system is developed from 26 km to 53.6 km. The locating accuracy is 20m.

CIOP2018-2018-000070A simple optical fiber SPR biosensor based on grapheneXue Zhou; Tonglei Cheng; Shuguang Li; Guowen An ｜ Northeastern University, ChinaA high sensitivity optical fiber Surface Plasmon Resonance (SPR) biosensor which is made by coreless optical fiber, silver film and graphene is proposed. Graphene is used to improve the traditional optical fiber sensor for enhancing evanescent field and increasing sensitivity.

CIOP2018-2018-000071Dual-wavelength photonic crystal fiber polarizing filter with square lattice based on surface plasmon resonanceJunbo Lou1,2; Tonglei Cheng1; Shuguang Li1 ｜ 1 Northeastern University, China; 2 Tie Ling Normal College, ChinaA square structure dual-band plasma photonic crystal fiber polarization filter is proposed in this paper.

CIOP2018-2018-000120A fiber ring laser for temperature sensing based on in-fiber Mach-Zehnder interferometerXudong Zhang; Jiping Liu; Liangtao Hou; Jiuru Yang ｜ Heilongjiang University, ChinaA fiber ring laser (FRL) based on thin-core fiber offset structure is reported and applied in temperature sensing. High sensitivity (122.7pm/℃ ) and detection limit (0.07℃ ) are gained in this FRL.

CIOP2018-2018-000122Cryogenic characteristics of in-fiber Mach-Zehnder interferometers based on EDF and MMFLiangtao Hou; Xudong Zhang; Lingling Ran; Jiping Liu; Jiuru Yang ｜ Heilongjiang University, ChinaTo overcome cryogenic effect, an in-fiber Mach-Zehnder interferometer (MZI) based on erbium-doped fiber is fabricated and studied. The MZI presents high temperature sensitivity (124.7pm/ ℃ ) and intensity enhancement (10-dB) due to negative gain-temperature feature.

Poster Session

Poster


CIOP2018-2018-000130Enhanced strain sensitivity of perfluorinated graded-index plastic optical fiber Bragg gratings by thermal annealingTianyi Ma1; Ryo Ishikawa1; Heeyoung Lee1; Antreas Theodosiou2; Kyriacos Kalli2; Yosuke Mizuno1; Kentaro Nakamura1 ｜ 1 Tokyo Institute of Technology, Japan; 2 Cyprus University of Technology, CyprusWe experimentally evaluate the influence of thermal annealing of a perfluorinated graded-index plastic optical fiber Bragg grating on the strain sensitivity at room temperature. Annealing is shown to be useful in enhancing the strain sensitivity.

CIOP2018-2018-000139Power coupling characteristics of a single mode optical fiber with a rectangular holeJianxia Liu; Ruoxi Li; Xingchao Ma; Pingping Lu ｜ Hubei University of Science and Technology, ChinaA single mode optical fiber with a rectangular hole is proposed. Power coupling characteristics are discussed using numerical method. The optical fiber can be used in the high refractive index sensing and modes conversion.

CIOP2018-2018-000173Design and development of building tilt angle and vibration amplitude detection system based on optical networkJunda Hua; Guiyin Yu ｜ China Jiliang University, ChinaA detection system and method for building inclination angle and vibration amplitude using micro bending effect is proposed in this paper.

CIOP2018-2018-000192Temperature Sensing Based on Phase-to-Intensity Modulation Conversion in Fiber Bragg GratingYushuang Zhu; Lin Gui; Yaoyu Cao; Yang Zhang; Jiancun Zuo ｜ Shanghai Polytechnic University, ChinaA method of temperature sensing based on microwave signal generation with fiber Bragg grating is proposed. A result that 0.4℃ temperature difference may cause 1.8dB variation in the final output is achieved.

CIOP2018-2018-000219Enhancing the performance of BOTDA Sensing through introducing additional Pre-exhausted wavelengthHongyan Zhao; Yongjun Wang; Qi Zhang; Feng Tian; Wenqing Tang; Tingting Yu; Xiangjun Xin ｜ Beijing University of Posts and Telecommunications, ChinaWe present and experimentally demonstrate a novel structure of Brillouin optical time domain analysis (BOTDA) sensor that introduces additional pre-exhausted wavelength to ensure the encoded pulse waveform after EDFA is flat, which can eliminate the noise of system sensing. The experiments results indicate that it could improve the performance.

CIOP2018-2018-000243Research on Adaptive Fiber Calibration Technology of Raman Optical Fiber Sensor SystemFuchang Chen; Chaoqun Yu; Zhimin He ｜ Minnan Normal University, ChinaWith the rapid development of intelligent IoT technology, Raman fiber sensor technology is getting wider applications in various monitoring.

Poster Session

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CIOP2018-2018-000246Enhanced Sensitization Detection of Brillouin Power for Simultaneous Temperature and Strain Sensing Based on BOTDRFuchang Chen; Chaoqun Yu; Zhimin He ｜ Minnan Normal University, ChinaMulti-parameter sensing based on distributed Brillouin optical fiber sensing system become a hot spot nowadays. The cross sensitivity of Brillouin scattering spectrum to both temperature and strain leads to difficulty in simultaneous measurement of these two measurands.

CIOP2018-2018-000253Temperature sensor of ultrahigh sensitivity based on Mach-Zehnder Interferometer by vernier effectChengcai Tian; Hao Zhang; Xin Huang; Zhisong Xiao; Anping Huang; Wenxiu Li ｜ Beihang University, ChinaA temperature sensor based on Mach-Zehnder Interferometer (MZI) by vernier effect was proposed and theoretically demonstrated with large sensitivity enhancement.

CIOP2018-2018-000259High sensitivity temperature sensor in packaged microdroplet whispering gallery mode resonatorXiaogang Chen1; Liang Fu1; Qijing Lu1; Hongqin Yang1; Xiang Wu2; Shusen Xie1 ｜ 1 Fujian Normal University, China; 2 Fudan University, ChinaWe experimentally demonstrate a high sensitivity of packaged microdroplet whispering gallery mode (WGM) resonator to temperature change.

CIOP2018-2018-000261Non-reciprocity induced by the nonlinear optical effect in microring structure and its application in the optical sensingLin Gui; Yushuang Zhu; Yaoyu Cao; Jiancun Zuo ｜ Shanghai Polytechnic University, ChinaA structure in photonic integrated circuit is proposed to generate the non-reciprocity by the nonlinear optical effect in the structure. Simulation shows the non-reciprocal spectrum with the slope of 4.31 dB/GHz benefits its application in sensing.

CIOP2018-2018-000276In-motion monitoring of atmospheric methane and ethane using a mid-infrared dual-gas simultaneous detection sensorWeilin Ye1; Bo Zhou1; Hongzhi Yu1; Yongxian Meng1, Chuantao Zheng2 ｜ 1 Shantou University, China; 2 Jilin University, ChinaA dual-gas simultaneous methane and ethane detection sensor was demonstrated and conducted. Concentration measurement of methane and ethane in one road was shown, as well as a 2-D concentration mapping result in one block.

CIOP2018-2018-000295Monitoring of Fiber Grating Refractive Index ModulationGaofei Yao; Junbin Huang; Hongcan Gu; Wen Liu ｜ Naval University of Engineering, ChinaIn order to fabricate high-performance fiber gratings and distributed feedback fiber lasers, the monitoring of AC and DC components of refractive index modulation during grating engraving was studied through theoretical analysis and experiment

Poster Session

Poster


CIOP2018-2018-000334A Brillouin Scattering Spectrum Frequency Shift Extraction Based on Sparse Constrainted Cross-correlation Iterative ModelWenqing Tang; Feng Tian; Hongyan Zhao; Yongjun Wang; Lijia Zhang; Qi Zhang; Qinghua Tian; Lan Rao; Xiangjun Xin ｜ Beijing University of Posts and Telecommunications, ChinaA sparse constrained cross-correlation convolution algorithm model is proposed to extract the Brillouin frequency shift of Brillouin scattering spectrum. The advantages are high measurement accuracy and low computational complexity.

CIOP2018-2018-000336Research on temperature sensor of double-cone-section cascading interferometerChunyu Liu; Xiaopeng Han; Jiuru Yang; Xudong Zhang ｜ Heilongjiang University, ChinaA double-cone-section cascaded interferometer is designed based on MZI interference principle. Temperature sensing measurement is realized by water heating bath method. The sensor has a temperature sensitivity of 60pm/°C.

CIOP2018-2018-000344A novel demodulation of chirped fiber Bragg gratings using optical power measurementHao Zhang ｜ Fujian Jiangxia University, ChinaA novel demodulation of chirped fiber Bragg gratings based on optical power measurement is presented in the paper to replace traditional demodulation based on optical spectrum analyzer.

CIOP2018-2018-000347Slope-assisted Brillouin optical correlation-domain reflectometry with strain dynamic range limited by “Mt. Fuji” shaped noise floorHeeyoung Lee; Yosuke Mizuno; Kentaro Nakamura ｜ Tokyo Institute of Technology, JapanWe experimentally clarify that the origin of the limited strain dynamic range of SA-BOCDR is “Mt. Fuji” shaped background noise floor. Some solutions for overcoming this issue and enhancing strain dynamic range are discussed.

CIOP2018-2018-000399Application Research on health monitoring of Sutong Bridge Based on distributed optical fiber sensingYafei Feng; Huan Zheng; Huiliang Ge ｜ Hangzhou Applied Acoustics Research Institute, ChinaIn this paper, combining with the tenth anniversary load test of Sutong Bridge, we proposed the Brillouin Optical Time Domain Analysis (BOTDA) to conduct health monitoring research on the bridge

CIOP2018-2018-000415Study on the phase of interference signal in phase extraction based phase-sensitive optical time domain reflectometryChaoli Liang; Yang Lu; Xueliang Zhang; Mo Chen; Jianfei Wang; Zhou Meng ｜ National University of Defense Technology, ChinaThe phase of interference signal in phase extraction based φ-OTDR is analyzed, which reveals that the intensity of the interference signal is wavelength dependent while the phase of the interference signal is wavelength independent.

Poster Session

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3. Biomedical Photonics

CIOP2018-2018-000029A preliminary geant4-based monte carlo study of a benchtop multi-pinhole x-ray fluorescence computed tomography imagingLuzhen Deng1,2; Biao Wei1; Peng He1; Peng Feng1 ｜ 1 Chongqing University, China; 2 The University of Texas, USAWe developed a Geant4-based Monte Carlo (MC) model of a benchtop multi-pinhole x-ray fluorescence computed tomography (XFCT) system for quantitative imaging with gold nanoparticles (GNPs), which investigated the performance of multi-pinhole XFCT with different parameters setup.

CIOP2018-2018-000038Determination of the characteristic wavelengths of photoacoustic glucose signals based on interval partial least square algorithmZhong Ren; Guodong Liu; Zhen Huang ｜ Jiangxi Science and Technology Normal University, ChinaPhotoacoustic detection experiments of glucose were performed. To determine the optimal absorption wavelengths of glucose, the interval partial least square algorithm was used. Results show that 1350-1440 and 1490-1550nm are the optimal characteristic wavelength regions.

CIOP2018-2018-000053In vivo blood viscosity characterization based on frequency-resolved photoacoustic measurementYue Zhao1; Shaozhuang Yang1; Yating Wang2; Zhen Yuan2; Liwei Liu1; Junle Qu1 ｜ 1 Shenzhen University, China; 2 University of Macau, Macau, ChinaA photoacoustic method was proposed for noninvasively detecting blood viscosity with frequency-resolved measurement. The full width at half maximum of the PA frequency spectrum was utilized to reflect the viscosity distribution in subcutaneous microvasculature.

CIOP2018-2018-000054Low-energy oxygen self-enriching nanoemulsion as carrier for photodynamic therapyLiang Hong; JialinWang; Yihua Zhao; Liwei Liu; Junle Qu ｜ Shenzhen University, ChinaTo overcome hypoxia and improve the photodynamic therapy efficacy, using a low-energy method suitable for industrialization, a novel oxygen self-enriching nanoemulsion was prepared, enhancing the solubility, chemical stability, and singlet oxygen-generating ability of photosensitizer IR780.

CIOP2018-2018-000055Measuring luminescence lifetimes by a smartphoneZece Zhu ｜ Huazhong University of Science and Technology, ChinaA low-cost apparatus for measuring luminescence lifetimes was developed by using a smartphone to photograph the excited sample circling drove by a motor. The luminescence image was processed into luminescence decay curves for calculating lifetimes.

CIOP2018-2018-000060Recognition for multiple sources of Bioluminescence tomography: a comparative studyHuangjian Yi; Yuelin Hu; Pu Jiao; Xin Cao; Yuqing Hou; Fengjun Zhao; Xiaowei He ｜ Northwest University, ChinaA comparative study on hybrid clustering algorithm, synchronization-based clustering algorithm, and iterative self-organizing data analysis technique algorithm for multiple sources recognition of BLT.

Poster Session

Poster


CIOP2018-2018-000078Application of Single-Photon Fluorescence Lifetime in Vascular Pathological SectionsTeng Luo; Junle Qu ｜ Shenzhen University, ChinaFluorescence lifetime can be used to distinguish fluorophore by different fluorescence decay time. Fluorescence lifetime imaging can be used to obtain the quantitative function information of samples. In this work, we try to distinguish blood cells, muscle fibers and collagen fibers by the fluorescence lifetimes of these corresponding H&E stained tissues.

CIOP2018-2018-000086Review of non-fluorescent labeling microscopy methodsJia Zhang; Liwei Liu; Junle Qu ｜ Shenzhen University, ChinaSeveral commonly used non-fluorescent labeling imaging techniques and imaging principles are introduced in detail in this paper. The techniques have extremely wide application in cell imaging, cancer detection, label-free angiogenesis and other fields.

CIOP2018-2018-000097Cell imaging with squaraine dye based on two-photon excitation fluorescence imagingJunxian Geng; Rongxing Yi; Liang Hong; Ying He; Zhigang Yang; Liwei Liu ｜ ShenZhen University, ChinaOVCAR-3 ovarian cancer cells were labelled with the squaraine dye and detected by confocal microscope Leica TCS SP8 for imaging. The result showed that two-photon imaging has better resolution and deeper imaging depth.

CIOP2018-2018-000107Resolution-enhanced SRRF at low illumination intensity via polarization modulationZhimin Zhang1, Songyun Gu1 , Wenjie Liu1, Youhua Chen1,2, Cuifang Kuang1,Xu Liu1 ｜ 1 Zhejiang University, Hangzhou, China; 2 North University of China, ChinaResolution-enhanced SRRF at low illumination intensity via polarization modulation.

CIOP2018-2018-000123Experimental investigations of quality trapezoidal shape PMMA microchannel prepared by CO2 laserTianhao Wu1,2; Changjun Ke1; Yutong Wang1,2 ｜ 1 Institute of Electrics, Chinese Academy of Sciences, China; 2 University of Chinese Academy of Sciences, ChinaCO2 lasers often produce PMMA microchannels. Triangular cross-section microchannels have been fabricated by conventional methods. In this paper, a multi-pass translational method is proposed, which based on the lateral heat-affected zone (HAZ) formed by single ablation, and multiple ablation with its width. This way not only produces a clean bottom like the static multi-pass method, but can modify the cross-sectional topography to produce a clean trapezoidal microchannel.

CIOP2018-2018-000138Optimized Linear-in-wavenumber spectrometer for spectral domain OCTTong Wu, Xuhui Wang, Youwen Liu ｜ Nanjing University of Aeronautics and Astronautics, ChinaLinear-in-k spectrometer enables high sensitivity spectral domain optical coherence tomography (SDOCT) imaging without the need of resampling the digitized non-linear-in-k data. Here we report a design of optimized linear-in-k spectrometer, and we constructed the linear-in-k spectrometer based SDOCT system and evaluated its imaging performances.

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CIOP2018-2018-000140Optical phase characterization of neuron firing with Periodic stimulationXiang Li; Mingming Zhang; Shuang Fu; Ying Ji ｜ Jiangsu University, ChinaThe neuron firing behavior is preliminary discussed in this paper by means of optical phase characterization. It can indicate the effectiveness of this visible label-free detection method for neural firing.

CIOP2018-2018-000167The Study of the Intracellular Transportation of Gold Nanoparticles Through Scattering and Raman Spectroscopy ImagingChun Huang, Qian Li, Rui Hu, Junle Qu ｜ Shenzhen University, ChinaIn this paper, gold nanoparticles with different surface modifications have been used as model probes to investigate the intracellular transport trajectory and the target position of nanoparticles after endocytosis. Using both scattering and Raman spectroscopy imaging, we will study the mechanism of the interactions between the gold nanoparticles and the cells.

CIOP2018-2018-000177A highly sensitive fluorescence sensor for adrenaline detection based on modified carbon quantum dotsWei Wu; Liyun Ding; Haitao Lin; Sha Yu; Jun Huang; Zhilin Xia ｜ Wuhan University of Technology, ChinaA highly sensitive fluorescence sensor with the modified carbon quantum dots was developed for adrenaline detection. The linear calibration was obtained in the range of adrenaline concentration from 1uM to 100uM.

CIOP2018-2018-000200Diagnosis of lichen sclerosus based on multiphoton microscopyXiaomin Huang1; Ying Huang1; Linqin Zhen1; Shu Wang1; Lihang Lin2; Xiaoqin Zhu1; Jianxin Chen1 ｜ 1 Fujian Normal University, China; 2 Affiliated Union Hospital Fujian Medical University, ChinaLichen sclerosus (LS) is a chronic inflammatory dermatosis that caused substarntial discomfort and morbidity. In this paper, we successfully differentiate LS from the normal skin tissues by using multiphoton microscopy.

CIOP2018-2018-000216Identification of specific histological characteristics of glioblastoma based on multiphoton microscopyZhida Chen1; Xiaomin Huang1; Xingfu Wang2; Deyong Kang3; Yuanxiang Lin2; Zanyi Wu2; Shu Wang1; Na Fang1; Jianxin Chen1 ｜ 1 Fujian Normal University, China; 2 The First Affiliated Hospital, Fujian Medical University, China;3 The Affiliated Union Hospital, Fujian Medical University, China‘Pseudopalisading’ necrosis and glomeruloid vascular proliferation are histologic hallmark of glioblastoma. In this paper, Multiphoton microscopy can identify these specific histological characteristics of glioblastoma without labeling or fluorescent markers.

CIOP2018-2018-000221Application of spectroscopy in prenatal testingHuijing Lin; Xueliang Lin; Yunchao Xu; Duo Lin; Rong Chen; Chao Wei; Guannan Chen ｜ Fujian Normal University, ChinaSpectral karyotyping, real-time fluorescence quantitative PCR, SNP allele site analysis, etc, using fluorescence spectrum analysis method and laser optical tweezers Raman spectroscopy have been reported in the application of prenatal testing.

Poster Session

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CIOP2018-2018-000238Hyperspectral imaging of NIR-SWIR emitting nanoparticlesArtem Yakovliev; Junle Qu; Tymish Ohulchanskyy ｜ Shenzhen University, ChinaWe report the development of a hyperspectral imaging system, operating in near- and short wave infrared (NIR-SWIR) spectral range (900-1700 nm). The hyperspectral imaging application has been demonstrated using the NIR-SWIR emitting nanoparticles.

CIOP2018-2018-000248Non-contact all-optical specklegram-based photoacoustic sensingHuanhao Li; Fei Cao; Yingying Zhou; Puxiang Lai ｜ The Hong Kong Polytechnic University, Hong Kong, ChinaWe propose a non-contact photoacoustic sensing method by monitoring the variation of the optical speckle patterns without interference. The proposed method can characterize the photoacoustic perturbations, with performance being validated by conventional transducer-based photoacoustic approach.

CIOP2018-2018-000277Photobiomodulation of glutamate NMDA receptors in cancer cells alters Ca2+ intracellular influxIuliia Golovynska1; Sergii Golovynskyi1; Iurii V. Stepanov1; Ludmila I. Stepanova2; Junle Qu1; Tymish Y. Ohulchanskyy1 ｜ 1 Shenzhen University, China; 2 Taras Shevchenko National University of Kyiv, UkrainePhotobiomodulation is a promising drug-free therapeutic approach. In this work, we assess the dose-dependent effect of 650 and 808 nm laser light on N-methyl-D-aspartate receptors, promoting Ca2+ uptake in cultured cancer cells.

CIOP2018-2018-000291Using multiphoton microscopy to assess pulmonary emphysema in mouse modelsLiqin Zheng1, Yina Huang1,2, Zhida Chen1, Xiaomin Huang1, Yixuan Chen1, Jianxin Chen1 ｜ 1 Fujian Normal University, China; 2 Zhangzhou Branch Campus of Xiamen Shuangshi Middle SchoolChronic obstructive pulmonary diseases (COPD) is the fifth leading cause of death worldwide and will be increased in the coming decades. Pulmonary emphysema is one of the hallmarks of COPD. Establishing the animal model of pulmonary emphysema is very important to explore its pathogenesis.

CIOP2018-2018-000315Modeling of chemical reactivation in the resin-embedded mouse brain for high-resolution fluorescence imagingLonghui Li; Ruixi Chen; Ling Liu; Xiaoxiang Liu; Ning Li; Xiuli Liu; Xiaohua Lv; Shaoqun Zeng ｜ Huazhong University of Science and Technology, ChinaObtaining the structure atlas of neuronal network in the whole brain is essential for understanding brain function and diseases. Studying on the fluorescent protein labeled neuronal network of mouse brain requires three-dimensional high-resolution fluorescence imaging technique at whole brain scale for visualizing the fine structures of the whole neuronal network.

CIOP2018-2018-000428Fluorescence Molecular Tomography Imaging Based on Monte Carlo Model and Diffusion Approximation ModelKaixian Liu ｜ Huazhong University of Science and Technology, ChinaWe compare the Monte Carlo model with the diffusion approximation model from both the computational accuracy and computational efficiency, and analyze and derive their advantages and disadvantages.

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4. Optical Design and Optical Precision Measurement

CIOP2018-2018-000028Camera exposure time calculation algorithm for structured light measurementZhaojie Li; Haihua Cui; Changyi Liu; Xiaosheng Cheng; Xiaodi Zhang ｜ Nanjing University of Aeronautics and Astronautics, ChinaThis paper proposed algorithm calculates the exposure times for structured light measurement. The key concept of this algorithm is to calculate the camera response function using the results of reference point exposure and intensity value changes

CIOP2018-2018-000040Optical design of a refractometer with the liquid prismGuirong Jiang; Jing Wan; Zhian Lu; Weiqi Dou; Cheng Wang; Yu Lu; Fangren Hu ｜ Nanjing University of Posts and Telecommunications, ChinaHere a refractometer with the liquid prism is proposed. It has a simple structure, low cost and a large measurable refractive index range.

CIOP2018-2018-000042Improving accuracy of high precision displacement measurement system with optical pickup head by using differential astigmatism focus error detectionQuangsang Vo; Xiaodong Zhang; Fengzhou Fang; Linlin Zhu ｜ Tianjin University, ChinaIn this paper, we developed a high precision displacement measurement system with optical pickup head by using differential astigmatism focus error detection. The proposed system is cost-effective to quickly accurately estimate and correct systematic errors of four quadrant detector and can also measure surface profile.

CIOP2018-2018-000099Research on the Temporal and Spatial Distribution Characteristics of Ozone Based on Differential Absorption Lidar over the Yangtze River Delta, ChinaYan Xiang; Jianguo Liu; Tianshu Zhang; Guangqiang Fan; Lihui Lv ｜ Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, ChinaOzone has become the primary pollutant in China during the summer. The ozone was observed by two differential absorption lidars(DIAL) in Yangtze River Delta from August to September 2016.

CIOP2018-2018-000135A Large Relative Aperture and Wide-spectrum Star Sensor Optical lens DesignYang Wang; Xiangyue Meng; Chenggong Liu; Nan Lou; Helong Wu; Kai Zhang; Qianzhi Xu ｜ Changchun University of Science and Technology, ChinaBased on CODE V patent library, a star sensor optical lens with large relative aperture and wide-spectrum range is optimized. We also studied the methods of opto-mechanical design and alignment for the star sensor in the paper.

CIOP2018-2018-000151Three-dimensional measurement system based on structured light and error correctionWenkang Wu; Yongjun Wang; Tingting Yu; Hongyan Zhao; Xinyu Liu; Yucheng Pan; Xiaoyuan Niu; Jun Li; Hui Xu; Xiangjun Xin ｜ Beijing University of Posts and Telecommunications, ChinaThe three-dimensional measurement system based on structured light has the advantages of high precision, high speed, and simple structure. In the three-dimensional measurement system based on structured light, the solution phase is one of the key steps. Phase jump, shadow and other errors will have a great impact on the final point cloud computing.

Poster Session

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CIOP2018-2018-000171Measurement of Response Bandwidth of Photoelectric Detector with Low Cutoff FrequencyFan Yang1,2; Xinliang Wang1; Yang Bai1; Junru Shi1; Jun Ruan1; Shougang Zhang1 ｜ National Time Service Centre, Chinese Academy of Sciences, China; 2 University of Chinese Academy of Sciences, ChinaA measurement method based on acousto-optic modulation for response bandwidth of photoelectric detector with low cutoff frequency is proposed.

CIOP2018-2018-000174Ultra-sensitivity SERS enhancement achieved by radially polarized lightDong Yang; ZhongQuan Nie; AiPing Zhai; YanTing Tian; Chao Liu ｜ Taiyuan University of Technology, ChinaWe proposed the composite substract of one end sharpen Au nanorods combine with GO, receiving the SERS EF is as high as 10^12, to achieve a ultra-sensitivity and resolution SERS performance.

CIOP2018-2018-000179Depth-expandable measurement method for tracking of laser scanning probeTao Jiang; Xiaosheng Cheng; Haihua Cui; Xiang Li ｜ Nanjing University of Aeronautics & Astronautics, ChinaIn order to scan a large deep component such as wing and bay section, we use a depth-expandable zoom lens camera to track makers set on laser scanner, and realize laser line registration effectively.

CIOP2018-2018-000184Separation Intradermal Nevus Tissues from Dermal Tissues based on Laser-induced Breakdown SpectroscopyMing Zhu1; Bingling Chen1; Ten Luo1; Mengha Wang1; Shuxia Zhan2; Liwei Liu1; Junle Qu1 ｜ 1 Shenzhen University, China; 2 Shenzhen Shekou People’s Hospital, ChinaLaser-induced breakdown spectroscopy is used to real-time feedback the spectral information of the tissues in the process of laser removal of nevus, so as to completely remove nevus and avoid postoperative recurrence.

CIOP2018-2018-000188A multi-resolution data registration method based on fractal dimension characterizationChengwei Mo; Haihua Cui; Xiaosheng Cheng ｜ Nanjing University of Aeronautics & Astronautics Nanjing, ChinaA method for registration of cross-scale data was proposed in this paper. The key point of this method is using fractal dimension to characterize the scales of raw data and the decomposed data. Then according to the result of fractal dimensions, we pick out the data which has the similar scales to register using normal registration method.

CIOP2018-2018-0002043-Dimensional Surface Inspection System for Pantograph in Railway Nondestructive Testing Based on Laser Line-scanningJie Guo; Jianping Peng; Jinlong Li; Xiaorong Gao; Meng Yuan ｜ Southwest Jiaotong University, ChinaThe method proposed can obtain more detailed data and can more comprehensively detect and display the pantograph surface defects.

CIOP2018-2018-000206Filtering and Reduction for 3-Dimensional Surface Modeling of Laser Line Scanning Point CloudMeng Yuan; Jinlong Li; Xiaorong Gao; Jie Guo ｜ Southwest Jiaotong University, ChinaA filtering and reduction algorithm based on laser line scanned point cloud is proposed in this paper, which improves the precision and smoothness of NURBS surface model.

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CIOP2018-2018-000207Application of BRDF Data in Stray Light AnalysisChangwen Lu; Lin Li ｜ Beijing Institute of Technology, ChinaSelf-tested BRDF（Bidirectional Reflectance Distribution Function） data were applied in stray light analysis, to improve simulation accuracy.

CIOP2018-2018-000217Fringe pattern generation of three-dimensional shape measurement based on FPGAZiru Peng; Jinlong Li; Xiaorong Gao; Lin Luo ｜ Southwest Jiaotong University, ChinaA portable fringe pattern generation of three-dimensional shape measurement based on FPGA with adjustable parameters such as frequency and phase, and projected by handheld projector is proposed

CIOP2018-2018-000244Self-adaptive denoising assisted mid-infrared absorption spectroscopy for gas sensingChuantao Zheng1; Shuo Yang1; Fang Song1; Weilin Ye2; Yiding Wang1 ｜ 1 Jilin University, China; 2 Shantou University, ChinaA non-dispersion infrared (NDIR) CH4 sensor system using a three-channel-based least-square fast transverse filtering (LS-FTF) self-adaptive denoising (SAD) structure and a direct laser absorption spectroscopy technique using an electrical-domain noise-channel and an expectation-known-based recursive, least square (RLS) SAD algorithm were proposed.

CIOP2018-2018-000284Orbital angular momentum information analysis and application of vortex lightSong Qiu; Chen Wang; Zhimeng Li ｜ Space Engineering University, ChinaThe vortex light with orbital angular momentum (OAM) has important application prospects in precision measurement, micro-particle manipulation, and basic physics. Since the vortex light wave Pointin vector is not collinear with the optical axis direction, therefore, it has a unique advantage in target detection.

CIOP2018-2018-000293Diffraction-dependent in-plane-photonic-spin-splitting near the Brewster angleYu He; Lan Luo; Linguo Xie; Zhiyou Zhang ｜ Sichuan University, ChinaIn the case of horizontal incident polarization which is slightly title with respect to the plane of incidence, the IPPSS-induced shift is proportional to the diffraction length of light beams near the Brewster angle.

CIOP2018-2018-000298Analysis of fog suppression effect of FMCW laser detection baselineChen Peng; Zhao Jiguang; Song Yishuo ｜ Space Engineering University, ChinaThe influence of fuze baselines on fog suppression ability of FMCW laser fuze is simulated and analyzed.

CIOP2018-2018-000299Periodic microstructure defect detection based on optical Fourier transformChunran Wang; Mingli Dong; Bo Li; Fan Zhang; Peng Sun ｜ Beijing Information Science & Technology University, ChinaThis paper reports a method of periodic microstructure defect detection under a large field of view based on optical Fourier transform (FT).

Poster Session

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CIOP2018-2018-000311Cavity-enhanced absorption spectroscopy in the near- and mid-infrared for gas sensingQixin He1; Chuantao Zheng1; Yiding Wang1; Frank K. Tittel2 ｜ 1 Jilin University, China; 2 Rice University, USAThe application of cavity-enhanced absorption spectroscopy (CEAS) in the near- and mid-infrared for gas sensing was studied.

CIOP2018-2018-000343The transmission properties of elliptically polarized light in one-dimensional photonic crystals with magneto-optical defect layersZeqing Wang; Yingmao Xie ｜ Gannan Normal University, ChinaIn this paper, a structure of a one-dimensional photonic crystal containing a magneto-optical defect layer is designed.

CIOP2018-2018-000353Wave-transition contribution to the Faraday effect and Verdet constantWei Cai1,2; Zhiyong Yang1; Junhui Xing1 ｜ 1 Xi’an High-Tech Institute, China; 2 Xidian University, China To explore the essence of the Faraday effect, a theory of wave-transition contribution based on the quantum theory and electron dynamics, together with its corresponding model, is deduced and verified through test data and relevant parameters.

CIOP2018-2018-000398Influence of multistage diffraction of grating on imaging quality of a dispersion-compensated polarization Sagnac interferometerShiqun Jin; Nu Zhang; Jinyu Xing; Guo Xia; Mingyong Hu ｜ Hefei University of Technology, ChinaFor dispersion-compensated polarization Sagnac interferometer, multistage diffraction is investigated to determine the effect of non-ideal beams on imaging quality.

CIOP2018-2018-000401Research on calibration method of the near-infrared spectrum（900-1700nm）of hyperspectral irradiance spectrometerQuan Zhang; Xin Li; Wenchao Zhai; Yanna Zhang; Enchao Liu; Xiaobing Zheng ｜ 1 Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, China; 2 University of Science and Technology of China, ChinaThis paper expounds and analyzes two spectral calibration methods of the near-infrared spectrum module(900-1700nm) of the hyperspectral irradiance spectrometer. The two calibration methods verify that the design of the instrument’s spectral module is rational, and provide a meaningful reference for various spectral calibration methods of the near-infrared spectrum module.

CIOP2018-2018-000403Study on calibration method of field spectrometer measurementW.L. Lin1; H.X. Shen1; H.F. Liu1,2; S. F. Xia1; W.W. Zhang1 ｜ 1 Xiamen University of Technology, China; 2 Xiamen University of Technology, China;3 Xiamen Optosky co. LTD In this paper, third order of the least squares fitting to the wavelength calibration method, implements field spectrometer, nonlinear correction of wavelength calibration, waveform correction algorithm, the processing of the actual effect is good.

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CIOP2018-2018-000413Effect of the ratio of oxidizing agent and reducing agent on the properties of Mg/PTFE/Pb3O4 pyrotechnicsBing Wang; Yang Liu; Zongsheng Chen; Wang Chen; Jiaming Shi ｜ National University of Defense Technology, ChinaIn order to study the effect of the ratio of oxidizing agent and reducing agent on the performance of the trilead tetraoxide/ Teflon/magnesium（Pb3O4/PTFE/Mg） powder decoy compounding agent, 5 different pharmaceutical formulations are designed by maintaining constant oxidant formula and changing the ratio of oxidant and reducing agent

CIOP2018-2018-000420Corneal astigmatism axis standard based on toroidal surface designZhang Jiyan, Liu Wenli, Hong Baoyu, Yang Lei, Ding Xiang, Gao Mingliang ｜ National Institute of Metrology, ChinaCorneal astigmatism axis standard based on toroidal surface is designed and manufactured. By accurate measurement and metrological calibration, four axes of 0°, 45°, 90° and 135° are achieved and axis uncertainty is 0.3° with coverage factor of 2.

CIOP2018-2018-000421LIBS Spectra Automatic Baseline Correction Method Based on Morphometric Weighted Punishment Least SquaresSun Yongkai, Hao Xiaojian, Ren Long ｜ North University of China, ChinaIn this paper, an automated baseline correction method based on iterative morphological operations and weighted penalty least squares method is used for LIBS spectral baseline correction. Experiments show that it has accuracy, rapidity and flexibility.

5. Optical Communications and Networks

CIOP2018-2018-000014Variable bit rate optical communication link between LEO satellite and Ground stationShaowen Lu1,2; Jianfeng Sun1; Peipei Hou1; Ren Zhu1; Enwen Dai1; Yan Yang1; Xia Hou1; Weibiao Chen1 ｜1 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, China; 2 University of Chinese Academy of Sciences, ChinaThe results of laser communication between LEO satellite and Ground station is reported, the bit rate can be changed between 5.12 Gbps and 2.56 Gbps.

CIOP2018-2018-000018Discussion and analysis on alignment error model of laser communicationYan An1; Yujing Su2; Qi Xin1; Yiyun Xu1; Keyan Dong1 ｜ 1 Changchun University of Science and Technology, China; 2 Xi’an seeker technology co. LTD, ChinaThe influence of the alignment error in laser communication is analyzed. The link energy model with the position deviation at the image surface is established, and on the basis of this model, the spot deviation and the receiving optical axis deviation caused by the angular deviation of the optical axis are discussed and analyzed.

Poster Session

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CIOP2018-2018-000133Design of all solid large mode area and nearly zero flattened dispersion microstructure fiberWei Wang; Shi Qiu; Fanchao Meng; Tianxu Lin; Haidong Xu ｜ Yanshan University, ChinaBy using this strategy, the a flattened dispersion of 5.28±0.52ps/(nm·km) within a wavelength range of 1430nm~1680nm, which covers S+C+L+U communication band and an effective mode area up to 288.2μm2 at 1.55μm are achieved simultaneously.

CIOP2018-2018-000154Low loss negative curvature fiber with circular internally tangent nested tube in elliptical tubesYing Han; Fanchao Meng; Shi Qiu; Tingting Dong; Weizhen Zhu; Yuan Qing ｜ Yanshan University, ChinaWe propose the low loss negative curvature fiber with circular internally tangent nested tube in elliptical cladding tubes and the leakage loss is 0.012dB/km at 1.55μm.

CIOP2018-2018-000175QoS evaluation method of optical network based on optical network alarm mega dataYinfa Zhang; Qian Liu ｜ National University of Defense Technology, ChinaBased on optical network alarm mega data, propose a QoS evaluation method for optical network based on FCM and rough set. The evaluation accuracy of this method is 73% and increases with the add of samples.

CIOP2018-2018-000180Research on Cascaded Turbo-STBC Coding Based on GFDM-ROF SystemBo Wang; Feng Tian; Qi Zhang; Yongjun Wang; Lijia Zhang; Qinghua Tian; Lan Rao; Xiangjun Xin ｜ Beijing University of Posts and Telecommunications, ChinaWe proposes and verifies that in the GFDM-ROF system with MIMO, cascaded Turbo-STBC coding can improve the reliability of the entire system and an adaptive coding technology with excellent performance and it can reduce system load rapidly.

CIOP2018-2018-000181Modified Constant Modulus Algorithm based on constellation matching error with variable weightHongchao Guo; Feng Tian; Lijia Zhang; Qi Zhang; Qinghua Tian; Yongjun Wang; Xiangjun Xin ｜ Beijing University of Posts and Telecommunications, ChinaWe propose a modified constant modulus algorithm based on constellation matching error with variable weight for polarization-mode dispersion equalization in coherent optical communication system, the new algorithm can achieve faster convergence speed and lower steady-state error

CIOP2018-2018-000196A Dynamic Bandwidth Allocation Algorithm Based on Neural Network Prediction-Correction Model and Software Defined TDM-PONHuiyu Hu1; Qi Zhang1; Xiangjun Xin1; Qinghua Tian1; Ying Tao2; Yufei Shen2; Guixing Cao2; Naijin Liu2; Rui Ding2 ｜ 1 Beijing University of Posts and Telecommunications, China; 2 China Academy of Space Technology, ChinaBased on the software-defined TDM-PON access network architecture and a network traffic prediction-correction model, a dynamic bandwidth allocation algorithm is proposed. In this algorithm, a prediction model is used to predict traffic information and a correction mechanism is used to correct the prediction model.

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CIOP2018-2018-000197A Weighted Clustering Algorithm Based on Node energy for Multi-UAV Ad Hoc NetworksJinchao Liu1; Qi Zhang1; Xiangjun Xin1; Qinghua Tian1; Ying Tao2; Rui Ding2; Yufei Shen2; Guixing Cao2; Naijin Liu2 ｜ 1 Beijing University of Posts and Telecommunications, China; 2 China Academy of Space Technology, ChinaIn order to solve the problem of endurance of high-speed mobile multi-UAV in Ad Hoc networks with frequent network topology changing, this paper proposes a weighted clustering algorithm based on node energy

CIOP2018-2018-000198QoS based Optimization of Multi-user selection with Criterion of SLNRYixin Wang1; Qi Zhang1; Xiangjun Xin1; Qinghua Tian1; Ying Tao2; Yufei Shen2; Guixing Cao2; Naijin Liu2; Jinxi Qian2 ｜ 1 Beijing University of Posts and Telecommunications, China; 2 China Academy of Space Technology ChinaQoS based Optimization of Multi-user selection with Criterion of SLNR is an improvement of user scheduling in muti-user MIMO system, which shows advantage in channel capacity and high QoS-guaranteed users’ performance.

CIOP2018-2018-000227A Modulation Classification Method Based on Deformable Convolutional Neural Networks for Broadband Satellite Communication SystemsQian Li; Qi Zhang; Xiangjun Xin; Qinghua Tian; Ying Tao; Yufei Shen; Guixing Cao; Naijing Liu; Jixi Qian ｜Beijing University of Posts and Telecommunications, ChinaThis paper proposes a Deformable Convolutional Neural Networks (DCNN) classification model based on broadband satellite communication systems to solve the problem of broadband satellite modulation signal with SNR fluctuation of complex channel and various modulation signal recognizing

CIOP2018-2018-000236A simple wideband digital predistortion system based on improved Powell algorithmZitong Lan; Qi Zhang; Xiangjun Xin; Qinghua Tian; Ying Tao; Yufei Shen; Guixing Cao; Naijing Liu; Jixi Qian ｜Beijing University of Posts and Telecommunications, ChinaThe paper proposes a method based on improved Powell algorithm and Random demodulation to simplify the digital and distortion systems. The simulation shows that the linearization performance can be obtained when the system feedback bandwidth is equal to the original signal bandwidth.

CIOP2018-2018-000264Optical spectrum effects on performance of optical wireless hybrid energy and data transmission system using a solar cellYuanxin Wang; Tong Wang; Peng Zhang; XueLei Wang; Dashuai Wang; Xiaoyan Li; Chao Wang; Shoufeng Tong ｜ Changchun University of Science and Technology, ChinaWe tested the effect of different wavelength optical carrier in energy output characteristics and communication performance of solar cell energy information hybrid transmission system.

CIOP2018-2018-000297NIR optical properties of Er3+/Yb3+ co-doped fluorotellurite glasses with low phonon energyXin Huang; Jiaming Liu; Chengcai Tian; Anping Huang; Zhisong Xiao ｜ Beihang University, ChinaThe present work indicates that Er3+/Yb3+ co-doped fluorotellurite glasses can be promising materials for solid state NIR lasers and fiber amplifiers.

Poster Session

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CIOP2018-2018-000323Feature Extraction of Brillouin Scattering Spectrum Based on Half-interval Search Frequency Sweep MethodTingting Yu; Yongjun Wang; Feng Tian; Xiangjun Xin; Hongyan Zhao; Wenqing Tang ｜ Beijing University of Posts and Telecommunications, ChinaAiming at the problem of poor real-time performance of Brillouin optical time domain analysis (BOTDA) distributed optical fiber sensing system, it proposes a extraction method of Brillouin scattering spectrum based on half-interval search frequency sweep to reduce measuring time.

CIOP2018-2018-000342A novel frequency-locked multicarrier generator based on a dualelectrode Mach-Zehnder modulatorRuoceng Zhang; Feng Tian; Qi Zhang; Yongjun Wang; Lijia Zhang; Qinghua Tian; Lan Rao; Xiangjun Xin ｜Beijing University of Posts and Telecommunications, ChinaWe have proposed a novel frequency-locked multicarrier generator based on a dual-electrode Mach-Zehnder modulator. Simulations show that it can generate multiple frequency-locked carriers with acceptable flatness more easily and less costly.

CIOP2018-2018-000389Pilot Aided OSNR Monitoring in optical Nyquist Transmission SystemWenjing Li1; Xu Lu2; Zhiyuan Ye3; Pengcheng Ni3; Qing Wu1 ｜ 1 State Grid Information & Telecommunication Group Co., LTD., China; 2 East inner mogolia electric power limited company, China; 3 Anhui Jiyuan software company, ChinaA method of using pilot-tone to monitor optical signal-to-noise ratio (OSNR) is proposed in the paper. High-order statistical moments of pilot component are utilized to evaluate the noise level of the transmitted optical signals. This method of OSNR monitoring has the advantage of insensitivity to chromatic dispersion (CD) and polarization mode dispersion (PMD). Simulations are carried out in optical Nyquist transmission system. It is shown that the method has 1 dB monitoring accuracy over a wide OSNR range from 5 dB to 25 dB.

6. Optical Imaging and Holography

CIOP2018-2018-000012Naked eye 3D display and visible light stealthLiping Zhang ｜ Qingdao University, ChinaThis paper presents a theory that can form a three-dimensional image directly in space and realize dynamic 3d display, which can be used for 3d display and stereo TV. It also discusses the use of three-dimensional images in space to reproduce the background images that are blocked by the human body to make visible light invisible, for invisibility clothes.

CIOP2018-2018-000033Steady object tracking based on online sample miningXiuxiu Chu; Xiaoyu Chen; Yi Zhang; Lianfa Bai; Jing Han ｜ Nanjing University of Science and Technology, ChinaThe paper proposes an online sample training method based on Gaussian Mixture Model to avoid model drift effectively. Besides, it also proposes a criteria for updating model to enhance the stability of the tracker.

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CIOP2018-2018-000085Design of a foveated imaging system based on liquid crystal microlens arrayXingwang Xie; Xinjie Han; Wanwan Dai; Zhaowei Xin; Dong Wei; Mingce Chen; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜ Huazhong University of Science and Technology, ChinaWe propose a foveated imaging system implemented by effectively correcting wavefront aberration based on liquid-crystal microlens array, which can obtain a high resolution image for the regions of interest while keeping a wide field of view.

CIOP2018-2018-000089Electrically Controlled Liquid-crystal Microlens Arrays Based on Plane Nonuniform Spiral MicrocoilsXinjie Han; Wanwan Dai; Junjie Meng; Xingwang Xie; Zhaowei Xin; Dong Wei; Mingce Chen; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜ Huazhong University of Science and Technology, ChinaIn this paper, a new type of electrically controlled liquid-crystal microlens arrays based on plane nonuniform spiral microcoils is proposed, which can be effectively formed a gradient refractive index distribution for converging incident microbeams.

CIOP2018-2018-000090A Multi-regions Electrically Tunable Liquid Crystal Microlens Array for Extending the Depth of FieldMingce Chen; Zhaowei Xin; Dong Wei; Xingwang Xie; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜ Huazhong University of Science and Technology, ChinaDepth of field (DOF) is an important parameter for imaging systems. In this paper, we propose a method to extend the depth of field using a multi-zone electrically tunable liquid crystal microlens array.

CIOP2018-2018-000093Electronically controlled liquid-crystal microlens array with plane swing focus and tunable focal lengthWanwan Dai; Zhonglun Liu; Huiying Wang; Xinjie Han; Junjie Meng; Leilei Niu; Xingwang Xie; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜ Huazhong University of Science and Technology, ChinaAn electronically controlled liquid-crystal microlens array with plane swing focus and tunable focal length instead of a commonly microlens array with a fixed focal length for high-resolution image acquisition, wavefront measurement, and distortion wavefront correction, is proposed.

CIOP2018-2018-000096Fast OMP reconstruction for compressive hyperspectral imaging using joint spatial-spectral sparsity modelHaiying Liu1; Rongli Chen2; Yajun Wang2; Pei Lv2 ｜ 1 Chang’an University, China; 2 Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, ChinaIn this paper, a flexible recovery strategy is proposed to decode the compressive hyperspectral data for more accurate reconstructed images by taking advantage of the joint spatial-spectral correlation model of hyperspectral images.

CIOP2018-2018-000101Matrix Distributed Liquid-crystal Microlens Arrays Driven by Electrically Scanning Voltage SignalsHuiying Wang; Leilei Niu; Wanwan Dai; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜ Huazhong University of Science and Technology, ChinaA liquid-crystal microlens array based on liquid crystal display electro-scanning method solves the problem that a large number of wires cannot be connected during the process of wavefront dynamic compensation to minimize image distortion.

Poster Session

Poster


CIOP2018-2018-000104Liquid-crystal microlens arrays driven addressably by electric-scanning signalsLeilei Niu; Huiying Wang; Wanwan Dai; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜ Huazhong University of Science and Technology, ChinaAn addressably electric-scanning driving approach for a 4×4 zoned LCMLA with sixteen electrode zone divided is proposed so as to reduce the number of driving signal lines.

CIOP2018-2018-000108Simulation of Different Samples Size on 2.52THz Compressive Holographic TomographyJing Yuan; Qi Li ｜ Harbin Institute of Technology, ChinaThis paper mainly studies that different samples size influence the compressive sensing algorithm iteration number and sparse restriction parameters on the 2.52THz reconstruction results under Gaussian noise conditions. The best reconstruction parameters are given and compared with condition of no noise. This simulation study is possible benefit to the practical application.

CIOP2018-2018-000110A High-precision and small-volume stepping displacement microplatform for focusing ion beam etching of optical antennaJunjie Meng; Xinjie Han; Wanwan Dai; Zhaowei Xin; Dong Wei; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜Huazhong University of Science and Technology, ChinaIt is a core operation that a high-precision and small-volume stepping displacement microplatform with a larger manufacturing size of more than that of existing equipments, is constructed effectively for fabricating optical antenna with a size in centimeter scale.

CIOP2018-2018-000113Infrared Small Target Detection Using Phase Spectrum of Quaternion Fourier TransformYuyao Zhu ｜ Nanjing University of Science and Technology, ChinaA new infrared small target detection method based on phase spectrum of quaternion Fourier transform is presented in this paper, the main steps of which include enhanced map extraction and target segmentation. Experiments demonstrate the effectiveness of this method with respect to LSBRG and ROC.

CIOP2018-2018-000114A Fine-grained Recognition Model of Air Targets Based on Bilayer Faster R-CNN with FeedbackJiajia Wang ｜ Nanjing University of Science and Technology, ChinaA fine-grained recognition model of aerial target based on bilayer Faster R-CNN with feedback is proposed in the paper. The experiments show that the accuracy of the classification is raised from 88.98% to 91.21%, which proves the validity of the model.

CIOP2018-2018-000127Non-scanning 3D endoscopic imaging through a multimode optical fiber based on the monochromatic transmission matrixChengfang Xu1,2,3; Bin Zhuang1,3; Yi Geng1,3; Guangzhi Zhao1,3; Hui Chen1,3; Zhengquan He1; Zhaoxin Wu2; Liyong Ren1 ｜ 1 Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, China; 2 Xi’an Jiaotong University, China; 3 University of Chinese Academy of Sciences, ChinaWe demonstrate that non-scanning 3D imaging through a multimode fiber in reflection mode can be realized by monochromatic transmission matrix approach. The results indicate the approach may be used for single-fiber rapid 3D endoscopic imaging.

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CIOP2018-2018-000128A polarization insensitive infrared filter based on a liquid-crystal Fabry-Perot for electrically tunable spectral imagingZhonglun Liu; Wanwan Dai; Xinjie Han; Zhaowei Xin; Dong Wei; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜Huazhong University of Science and Technology, ChinaThis paper presents a polarization insensitive infrared filter based on a liquid-crystal Fabry-Perot (LC-FP) developed for electrically tunable spectrum and performing high efficient imaging detection.

CIOP2018-2018-000131A dual-wavelength carrier phase recovery method under the interference microscopy imagingHuiru Zheng; Yuanyuan Xu; Jingrong Liao; Qiong Zhu; Yawei Wang ｜ Jiangsu University, ChinaIn this paper, a phase recovery algorithm is proposed in dual-wavelength interferometry with random phase shift. This approach is free of phase unwrapping. It can recover the phase distribution only from a dual-wavelength interferogram.

CIOP2018-2018-000148Optimal design for multi-layer diffractive optics in infrared waveband with antireflective coatingsShan Mao ｜ Northwestern Polytechnical University, ChinaAntireflective coatings are indeeded necessary to reduce reflection of optical systems especially for working in infrared wavebands, since materials used in infrared wavebands cannot only lead to a serious energy absorption but also moisture absorption. However, as for traditional multi-layer diffractive optics(MLDOs) design, antireflective coatings have not been taken into consideration, which is not precious for its design on the basis theory.

CIOP2018-2018-000157The velocity characteristics of internal solitary waves in Andaman Sea by optical remote sensingSongsong Huang; Jing Wang; Yuan Mei; Ziyue Zhang ｜ Ocean University of China, ChinaOptical remote sensing is used to obtain the propagation velocity of internal solitary waves in Andaman Sea and to reveal the impact of topography and ocean stratification on the velocity.

CIOP2018-2018-000176Quantitative Phase Imaging using Dual-channel Fresnel Bi-prism Interference MicroscopeTengfei Sun; Peng Lu; Zhuang Zhuo; Wenhao Zhang; Jingqi Lu ｜ Shandong University, ChinaA dual-channel interference microscope is presented for quantitative phase imaging of transparent microscopic object by employing an ordinary unpolarized cube beam-splitter and a ready-made Fresnel bi-prism. The experimental results verify the practicability of this method.

CIOP2018-2018-000183Derivative method for fast phase imaging in simultaneous dual-wavelength off-axis phase-shifting interferometryYuanyuan Xu; Qibao Shen; Yawei Wang; Guangwei Peng; Qiwen Xu ｜ Jiangsu University, ChinaA derivative method for fast phase extraction is proposed to in simultaneous dual-wavelength interferometry. Only three off-axis wavelength-multiplexed phase-shifted interferograms are required. It has the advantages of faster computing speed and high accuracy.

Poster Session

Poster


CIOP2018-2018-000186A Blurry Low-Light Image Enhancement and Deblurring Fusion AlgorithmChao Wei; Aisheng Xu; Haotian Yu; Yanping Chen; Guannan Chen ｜ Fujian Normal University, ChinaA novel brightness mapping function based on the camera mapping model was proposed by using the chi-squared distribution to lower color and lightness distortion when increasing visibility.

CIOP2018-2018-000189Computed Radiography Image Quality Assessment with Different Materials and ThicknessWenwen Xu; Jianping Peng; Lin Luo; Xiaorong Gao; Jinlong Li ｜ Southwest Jiaotong University, ChinaAfter calibration on the software the thickness can be read according the different gray value. Under different condition taking picture for one sample and analyze it.

CIOP2018-2018-000194Multi-aperture stitching technology in cylindrical coordinates based on particle swarm optimizationYunxiu Shui; Lin Hu; Yaohui Dai; Haiyu Wu; Gang Zhu; Yan Yang ｜ Chongqing University of Technology, ChinaMulti-aperture stitching technology based on particle swarm optimization in cylindrical coordinates. The stitching error reaches 10-10mm, it is proved that this algorithm is effective and practical for measuring cylindrical objects.

CIOP2018-2018-000201Anisoplanatic imaging of space target based on multilayer phase screensRan Li; Lin Luo; Jinlong Li; Hongnai Zhu; Xiaorong Gao ｜ Southwest Jiaotong University, ChinaA theoretical model of atmospheric imaging of space targets under anisoplanatic conditions is based on the atmospheric layering model and the propagation theory of light waves on the inhomogeneous turbulent path.

CIOP2018-2018-000205Image edge detection based on Sparse Autoencoder networkYingwei Liu; Xiaorong Gao; Jinlong Li ｜ Southwest Jiaotong University, ChinaA method of image edge detection based on Sparse Autoencoder combined with the softmax classifier is proposed in this paper. The new method can coordinate detection accuracy and noise performance.

CIOP2018-2018-000226A biologically inspired solution for allocation problems of branch-cutsRenkang Song; Xuelian Yu; Bingmei Guo; Dekai Yang; Jiang Pan; Yue Zhang ｜ Harbin University of Science and Technology, ChinaIn this paper, based on the maze-solving model and multiply sources model which established by the adaptive characteristics of Physarum, combined with the foraging characteristics of Physarum, a biologically inspired algorithm called Physarum Foraging Algorithm (PFA) is proposed for allocation problems of branch-cuts.

CIOP2018-2018-000237Experimental study on the coherence of multi-transverse-mode optical field based on liquid crystal spatial light modulatorHongmiao Zhao; Kun Xie; Wenguang Liu ｜ National University of Defense Technology, ChinaIn this paper, the fast measurement of the coherent information of the multi-transverse-mode optical field is realized by using the intensity type of liquid crystal spatial light modulator (SLM).

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CIOP2018-2018-000263Computer-aided infrared camouflage effectiveness evaluation method based on image saliencyXiaopeng Cheng; Dapeng Zhao; Zhijie Yu; Jinhua Zhang; Dabin Yu ｜ National University of Defense Technology, ChinaThis paper reports on a new computer-aided method for the infrared camouflage effectiveness evaluation of a target based on its image saliency. We give a new approach to quantitatively assess camouflage for comparing the quality of different infrared camouflage materials

CIOP2018-2018-000278Spectrally resolved label-free optical imaging of lipids in near- and short-wave infrared regionSergii Golovynskyi1; Iuliia Golovynska1; Olena Roganova2; Andrii Golovynskyi2; Junle Qu1; Tymish Y. Ohulchanskyy1 ｜ 1 Shenzhen University, China; 2 V.M. Glushkov Institute of Cybernetics, NAS of Ukraine, UkraineSpectrally resolved label-free optical imaging of lipids was performed using the near- and short-wave infrared region from 950 to 1700 nm. The imaging allows to visualize small adipose inclusions, which are undistinguishable in visible range.

CIOP2018-2018-000280Quantitative analysis of imaging quality of the segmented planar imaging detectorWeiping Gao; Xiaorui Wang; Lin Ma; Danfeng Guo ｜ Xidian University, ChinaThe segmented planar imaging method is a new concept on the basic of Vancian-Zernike theory. In this paper, the influencing factors of imaging quality of the system were quantitative analyzed. The simulation results indicate that the imaging quality of the system could be influenced by the baseline pairing method and the spectral channel number of array wave-guide grating, and a better pairing method has been proposed to improve the imaging quality of the system.

CIOP2018-2018-000288Experiment study of Magneto-acousto-electrical tomography based on laser-generated ultrasound technologyHui Xia; Guangxin Ding; Yuanyuan Li; Guoqiang Liu ｜ Institute of Electrical Engineering, Chinese Academy of Sciences, ChinaMagneto-acousto-electrical tomography based on laser-generated ultrasonic technology is proposed. This tomography can eliminate the electromagnetic interference between the excitation source and the magnetic field, and can realize millimeter magnitude imaging of the biological tissue in vitro.

CIOP2018-2018-000305See-through near-eye display using lightguide and transmissive type optical eyepiece: index-matched anisotropic crystal lensJong-Young Hong; Byoungho Lee; Seokil Moon; Seungjae Lee ｜ Seoul National University, South KoreaIn this paper, we present the transmissive type optical eyepiece: index-matched anisotropic crystal. Also, to compensate the long focal length which is inherent drawback of index-matched anisotropic crystal, a lightguide is applied to the system.

CIOP2018-2018-000310A holographic imaging system of a megapixel single potChao Han; Tingting Zhou; Yuzhen Shen ｜ Anhui Polytechnic University, ChinaWe propose a holographic printing system of a hundred thousand gigapixels using coaxial holography. The simulation results show the feasibility and correctness of the system. It provides a possible solution for high pixel holographic printing technology.

Poster Session

Poster


CIOP2018-2018-000321Modeling and Simulation of Optical Micro-nano- antenna for THz RadiationChai Hu; Jinxing Liu; Leilei Niu; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜ Huazhong University of Science and Technology, ChinaThe key optical micro-nano-antenna unit is modeled, and through regulating parameters including the number and size of the openings and the line width, the SPP excitation in THz band is studied.

CIOP2018-2018-000325Application of Hyperspectral Imaging Technology in Nondestructive Testing of Fruit QualityLixin Liu1; Mengzhu Li1; Wenqing Liu2; Zhigang Zhao2 ｜ 1 Xidian University, China; 2 Shenzhen University, ChinaWe explore the applications of hyperspectral imaging technology for non-destructive detecting of fruit quality by developing a prediction model of internal sugar content and an identification model of external pesticide residue concentration.

CIOP2018-2018-000327Analysis of three dimensional recovery algorithms’ influence on the ranging accuracy of Gm-APD LidarShang Gao1; Jianfeng Sun1; Peng Jiang1; Di Liu1; Xin Zhou1; Houming Fu1; Penghui Wang2 ｜ 1 Harbin Institute of Technology, China; 2 China Airborne Missile Academy, ChinaPresent three efficient imaging recovery algorithms and analyze their influences on ranging accuracy of Gm-APD Lidar in low frames based on real imaging data, which provides an effective method to recover high resolution range images.

CIOP2018-2018-000332Modeling and simulation of electromodulation imaging spectrum based on a MEMS-FP array with a high filling-factorJinxing Liu; Chai Hu; Leilei Niu; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜ Huazhong University of Science and Technology, ChinaThe MEMS-FP filter is mounted a liquid-crystal microlens array with a high filling-factor. A tuning range of 160 nm has been achieved in the visible and near-infrared wavelength ranges, with a maximum filling-factor of more than ~80%.

CIOP2018-2018-000373Non-reciprocal photonic devices based on optomechanicsZhen Shen, Yan-Lei Zhang, Yuan Chen, Fang-Wen Sun, Xu-Bo Zou, Guang-Can Guo, Chang-Ling Zou, and Chun-Hua Dong | University of Science and Technology of China, ChinaWe experimentally demonstrate a reconfigurable non-reciprocal device with alternative functions as either a circulator or a directional amplifier via optomechanically induced coherent photon-phonon conversion or gain.

CIOP2018-2018-000390Analysis of Response Time Characteristics of polymer-based microlensTao Chen; Chenbin Wu; Zhongcheng Liang; Rui Zhao; Meimei Kong ｜ Nanjing University of Posts and Telecommunications, ChinaSimilar to a glass lens, a liquid lens focuses light based on the surface-relief profile and its focal length can be tuned by changing the surface profile, due to small, nimble and intelligent to have good prospects in small devices such as mobile phones and other aspects of the lens application prospects.

Poster Session

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CIOP2018-2018-000393Creation of sub-wavelength optical bottle beams by focusing the patterned vector optical fieldsJingjing Hao ｜ The 28th Research Institute of China Electronics Technology Group Corporation, ChinaBy focusing a hybridly polarized vector beam whose polarization state is patterned cylindrical symmetry, a sub-wavelength optical bottle beam with subdiffraction beam size (0.9λ) can be obtained.

CIOP2018-2018-000407Characteristics of the lapis chloriti analyzed by the Terahertz time domain technologyY. Y. Ma; H. C. Huang; S. B. Hao; W. C. Tang; Z. Y. Zheng; Z. L. Zhang ｜ China University of Geosciences, ChinaAs a traditional mineral medicine, lapis chloriti has attracted much attetntions in recent years. The lapis chloriti were characterized for the first time by the terahertz Time-Domain Spectroscopy. It is found that the absorption is mainly determined by the particle size rather than the other factors in the sample.

CIOP2018-2018-000423Enhancement for High-luminance Objects by A False-color-Depth MethodXue Bing, Hao Xiaojian ｜ North University of China, ChinaWhen analyzing high-luminance objects such as plasma and high-temperature fireballs, in order to enhance the image of highlight targets, a false-color-depth method, similar to the reduction of the color depth, is proposed.

CIOP2018-2018-000425Large Scale and High Resolution Color Fresnel Holographic 3D Display Using RGB LED IlluminationYang Xin1,2,5, Wang Hui1,3, Li Yong1,3, Xu Fuyang1,3, Zhang Jiaheng1,3,5, Zhang Hongbo4 ｜ 1 Zhejiang Normal University, China; 2 Soochow University, China; 3 Key Laboratory of Optical Information Detecting and Display Technology of Zhejiang Province, China; 4 Virginia Military Institute, USA; 5 Hangzhou lightin Inc., ChinaAn optical system is designed to display large scale high resolution spatially sampled color Fresnel hologram with better resolution for human eyes.

7. Plasmonics and Metamaterials

CIOP2018-2018-000072Research on surface plasmon resonance sensor based on wavelength and angular combined modulationsYan Huang; Guoqiang Lan; Zewei Luo ｜ Heilongjiang University, ChinaA surface plasmon resonance sensor based on wavelength and angular combined modulations is proposed, sectional measurement method is adopted, which will detect different measuring ranges of refractive index and improve the sensitivity and resolution simultaneously.

CIOP2018-2018-000079Polarization-controllable structure color based on the one-dimension stacked array with polarized absorption peaksLei Zhao; Sen Yang; Zhihong He; Shikui Dong ｜ Harbin Institute of Technology, ChinaThe structure color gradually changes from red to orange when the polarization angles increase from 0° (TE) to 90° (TM) based on a one-dimension metamaterial perfect absorber using gold and silica.

Poster Session

Poster


CIOP2018-2018-000095Ultrahigh extinction-ratio circular polarization analyzer with chiral plasmonic lensBaifu Zhang1; Jianping Ding2 ｜ 1 Nanjing University of Science and Technology; 2 Nanjing UniversityA chiral plasmonic lens is designed for circular polarization analyzer with an ultrahigh extinction ratio up to ten thousands. Its chiral sensitivity and effectiveness are demonstrated both theoretically and numerically.

CIOP2018-2018-000102Reflectance controlling based on surface plasmon polaritons stimulated over the surface of metallic nanostructuresChang Liu; Sishun Wang; Dong Wei; Zhaowei Xin; Mingce Chen; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜Huazhong University of Science and Technology, ChinaBy changing the parameters of the metallic nanostructures, the minimum value of the reflectance curve and its corresponding band are adjusted.

CIOP2018-2018-000109IR reflective characteristics of a periodic nano-pattern array shaped in a metallic filmSishun Wang; Chang Liu; Dong Wei; Zhaowei Xin; Mingce Chen; Xinyu Zhang; Haiwei Wang; Changsheng Xie ｜Huazhong University of Science & Technology, ChinaThe influence of metal micro-nano structure and incident angle of electromagnetic wave on reflectivity was studied.

CIOP2018-2018-000153Enhancement of plasma resonance in a Hi-Bi D-shaped photonic crystal fiber SPR sensorShuai Wang1; Xiaohong Sun1; GangDing Peng2 ｜ 1 Zhengzhou University, China; 2 University of New South Wales, AustraliaA D-shaped fiber surface plasmon resonance (SPR) sensor based on a Hi-Bi photonic crystal fiber (PCF) is investigated with finite element method. It is found that the Hi-Bi structure can enhance the plasmon resonance at the mid-infrared wavelength.

CIOP2018-2018-000185Hugely tunable circular dichroism based on phase-change planar chiral metamaterialsShuai Ren; Youwen Liu; Daxing Dong; Junsheng Li; Shaoyong Peng ｜ Nanjing University of Aeronautics and Astronautics, ChinaIn this paper, we design phase-change planar chiral metamaterials to get hugely tunable circular dichroism through FDTD method, and analyze the current mode and the distribution of the electric/magnetic field to explain this results.

CIOP2018-2018-000211Asymmetric Electromagnetic Wave Propagation Supported by Magnetic Metamaterials and Graded Photonic CrystalsQingtao Ba1; Meiling Wang1; Huabing Wu1; Qilin Luo1; Shiyang Liu1,2 ｜ 1 Zhejiang Normal University, China; 2 Fudan University, ChinaWe demonstrate asymmetric electromagnetic wave propagation by designing magnetic metamaterials consisting an array of ferrite rods with time-reversal symmetry breaking and all-dielectric complex graded photonic crystals with spatial inversion symmetry breaking.

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CIOP2018-2018-000213Manipulating electromagnetic wave propagation with negative-zero-positive index magnetic metamaterialsMeiling Wang; Qingtao Ba; Qilin Luo; Huabing Wu; Shiyang Liu ｜ 1 Zhejiang Normal University, China; 2 Fudan University, ChinaWe demonstrate a flexible control on electromagnetic wave propagation by designing magnetic metamaterials (MMs) with effective index tuned from negative to zero and to positive, in particular, MMs with gradient effective index around zero.

CIOP2018-2018-000260Complex coupling in spectral lattice based on complex modulationShaolin Ke; Bing Wang ｜ 1 Wuhan Institute of Technology, China; 2 Huazhong University of Science and Technology, ChinaWe show the complex-valued coupling coefficient can be realized in frequency dimension by modulating the real and imaginary parts of refractive index. The unidirectional transport can be observed for phase difference is ±pi/2.

CIOP2018-2018-000266Generation of Hermite-Laguerre-Gaussian beams based on space-variant Pancharatnam Berry phaseJin Zhang; Xiaoyan Yu; Yuqing Chen; Mian Huang; Xin Dai; Dan Liu ｜ Guiyang University, ChinaThe Hermite-Laguerre-Gaussian beams generated and modulated by the spiral phase plate and the metasurface is investigated theoretically and experimentally. The relationship between the Pancharatnam-Berry phase and change of polarization and vortex is established.

CIOP2018-2018-000286The pseudo-diffusive phenomenon in photonic crystals with Dirac conesMeiqing Liu1; Xiaotong Guo1; Yixuan Wang1; Hua Gao1,2; Haochong Huang1 ｜ 1 China University of Geosciences, China; 2 Department of Physics, ChinaIn Photonic crystals, the effects of the Dirac cones’ types and locations on the Pseudo-diffusive transmission are both studied intensively. And some novel properties which are different from the conventional Pseudo-diffusive transmission are found.

CIOP2018-2018-000289Tunable multichannel guided-mode resonance photonic crystal filterGuoguo Wei1; Hua Gao1,2; Haochong Huang1; Zhiyuan Zheng1 ｜ 1 China University of Geosciences, China; 2 Capital Normal University, ChinaA guided-mode resonance filter which can work at multiple tunable frequencies is designed and obtained by using a readily available photonic crystal.

CIOP2018-2018-000290High-efficiency design of three-dimensional waveguide couplers via impedance-tunable transformation opticsJun Cao ｜ Nanjing Xiaozhuang University, ChinaWe design compact waveguide couplers via impedance-tunable transformation optics. By tuning impedance coefficients, three-dimensional dielectric waveguide couplers are designed with a high efficiency. Three-dimensional numerical simulations confirm our design with good performances.

Poster Session

Poster


CIOP2018-2018-000318Characterization of plasmonic nanolasers in spatial, momentum and frequency spacesHuazhou Chen; Renmin Ma ｜ Peking university, ChinaWe systematically characterize the lasing properties of plasmonic nanolasers in spatial, momentum and frequency spaces simultaneously via leakage radiation microscopy, and demonstrate a method to identify the exact lasing modes in a multimode plasmonic nanolaser.

CIOP2018-2018-000320Lasing Enh anced Surface Plasmon Resonance (LESPR) SensingSuo Wang1; Bo Li1; Xingyuan Wang1; Huazhou Chen1; Yilun Wang1; Xiaowei Zhang1; Lun Dai1,2; Renmin Ma1,2 ｜ 1 Peking University, China; 2 Collaborative Innovation Center of Quantum Matter, ChinaWe demonstrate a new class of active SPR sensors named lasing-enhanced surface plasmon resonance (LESPR) sensors with superior performance than their passive counterparts.

CIOP2018-2018-000333Quantum sensing based on strong plasmon-emitter couplingZhiyuan Qian1, Juanjuan Ren1, Fan Zhang1, Ying Gu1,2, Qihuang Gong1,2 ｜ 1 Peking University, China; 2 Shanxi University, ChinaQuantum sensing, which detects physical quantities by quantum properties, has profited from the developments of new materials and quantum technology. Here we theoretically demonstrated quantum sensing in a strong coupling system consisting of a single emitter and a metallic nanosphere. By analyzing the changes in the emitters fluorescence spectrum, we can detect weak changes in the permittivity of the embedding medium.

CIOP2018-2018-000345Flexible Manipulations on Electromagnetic Waves by Addition Theorem of Coding MetamaterialsYuanWu Rui ｜ Southeast UniversityWe will introduce the addition theorem of coding metamaterials and adopt it to manipulate electromagnetic waves flexibly.

CIOP2018-2018-000376Quantum plasmonic N00N state in a silver nanowire and its use for quantum sensingYang Chen ｜ University of Science and Technology of China, ChinaWe experimentally demonstrate the propagation of a two-plasmon entangled N00N state (N=2) in a silver nanowire and carry out a detailed analysis to assess the performance of the system for quantum sensing.

CIOP2018-2018-000378Controlling and analyzing of the SPP modes on a fiber taper-AgNW structureYunKun Wu ｜ University of Science and Technology of China, ChinaThe SPP modes on a fiber taper-AgNW structure can be controllable excited through adjusting the polarization of the incident light and the coupling distance. A new far field method with two orthogonal CCDs was introduced to analyze the modes.

CIOP2018-2018-000410Surface plasmon polariton excitation enhancement via wavefront shapingXiaona Ye; Haigang Liu; Yanqi Qiao; Xianfeng Chen ｜ Shanghai Jiao Tong University, ChinaWe realize the enhancement of SPP excitation via wavefront shaping in Kreschmann configuration. After optimizing the phase profile of the incident laser beam, the SPP field intensity is enhanced by a factor of 1.6 times.

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CIOP2018-2018-000422Effect of Magnetic Field Confinement on LIBS Spectral Enhancement and ShapeHuijuan Tang ｜ North University of China, ChinaMagnetic fields with different intensities were applied in LIBS,in order to enhance the emission spectrum of plasma. The enhancement effect,Lorenz fitting and stark broadening of line was obtained,enhancement mechanism was studied.

CIOP2018-2018-000424Experimental Study of Static Calibration Based on Atomic- emission Double Spectrum Line Temperature Measuring SystemYunan Guo; Xiaojian Hao ｜ Huazhong University of Science and Technology, ChinaBased on the double line of atomic emission temperature measurement technology, combinedwith storage measurement technology, the photoelectric thermometer was designed by usingY-type fiber, narrow band filter, silicon photomultiplier tube (SiPM).

8. Lasers and Nonlinear Optics

CIOP2018-2018-000005Effect of optical path difference on coherent polarization beam combination of ultrashort lasers pulsesFan Zhang; Dandan Zhou; Jie Mu; Minqiang Kang; Xiangjun Xiang; Jianbin Li; Ying Deng; Mengqiu Fan ｜Research center of laser fusion, CAEP, ChinaA theoretical model for the effect of optical path difference on coherent polarization beam combination of ultrashort laser pulses is established, and the effects of optical path difference and spectral width on coherent polarization beam combination efficiency of ultrashort laser pulses are studied.

CIOP2018-2018-000023Upconversion of communication band light carrying orbital angular momentum using quasi-phase-matchingLei Liu1,2; Hongyan Wang2; Yu Ning2; Lingwei Zhao2; Wei Zhao2; Chuan Guo2; Ge Ren1 ｜ 1 The Institute of Optics and Electronics, Chinese Academy of Sciences, China; 2 National University of Defense Technology, ChinaWe experimentally study the transfer of OAM from the input beams at 1064 nm and 1560 nm to the upconversion beam by a self-referenced interferometric technique. The experimental results are well matched with the theoretical simulations.

CIOP2018-2018-000025High-repetition-rate cavity dumped Yb:YAG thin disk laserRenpeng Yan; Chuang Zhao; Xin Yu; Xudong Li; Jie Zhou; Junhua Yu ｜ Harbin Institute of Technology, ChinaWe reported a high-repetition-rate cavity-dumped Yb:YAG thin disk laser with a short pulse-width of 20.3 ns. The maximum average power of 44 W is achieved at 70 kHz.

CIOP2018-2018-000069Surface-related nonlinear optical enhancement in graphene and G/CdS nanohybridsBaohua Zhu; Yuzong Gu; Guixia Wang ｜ Henan University, ChinaThe hybrid shows good NLO response compared to graphene or CdS and can be remarkably tuned by surface oxygen-containing groups, which is an important way in designing optoelectronic devices through controlling the surface structure of 2D nanomaterials.

Poster Session

Poster


CIOP2018-2018-000074Light intensification by ceria on the surface of fused silicaKejun Chen; Fei Wang; Baoxing Xiong; Xiao Yuan ｜ Soochow University, ChinaThe intensity distribution of an initially plane wave incident on ceria in subsurface layer is calculated numerically with Finite-different time-domain (FDTD) solutions.

CIOP2018-2018-000075The Design of Two-Lens Slit Spatial Filter for High Power Laser SystemTiancheng Yu; Xiang Zhang; Xiao Yuan; Baoxing Xiong; Fan Gao ｜ Soochow University, ChinaThe performance of two-lens slit spatial filter is described and discussed. The design of two-lens slit spatial filter for high-power laser system is proposed. The work is expected to has potential applications in the high-power laser systems.

CIOP2018-2018-00007620.38 MHz all polarization maintaining figure-of-8 erbium-doped fiber laser based on nonlinear amplifying loop mirrorChunhui Huang; Yue Zhou; Kun Xu ｜ Beijing University of Posts and Telecommunications, ChinaWe demonstrate a mode-locked all-polarization-maintaining figure-of-8 erbium-doped fiber laser, with a relatively high repetition rate of 20.38 MHz compared with previous work. The output pulse duration of this laser can be compressed to 590-fs.

CIOP2018-2018-000077All polarization-maintaining, figure-of-9 dispersion-managed Er: fiber laserYouwei Zeng; Yue Zhou; Kun Xu ｜ Beijing University of Posts and Telecommunications, ChinaWe demonstrate a novel all-PM-fiber, dispersion-managed figure-of-9 mode-locked femtosecond fiber oscillator based on NALM. The measured repetition rate is 46.6MHZ, and the spectral bandwidth is 25.7-nm. Kelly sideband is eliminated by adding a spool of DCF.

CIOP2018-2018-000080Analysis of Laser-induced Damage in Optical Thin Film Based on ANSYSFei Wang; Kejun Chen; Fan Gao; Xiao Yuan ｜ Soochow University, ChinaThe electric field intensity distribution of HfO2/SiO2 high reflective (HR) film is investigated. The transient heat-conduction model of the film is established for the calculation of temperature field of optical thin film coating.

CIOP2018-2018-000088LD end-pumped Nd:GdNbO4 quasi-three-level 926 nm laserDongyong Yang; Chuang Zhao; Renpeng Yan; Fang Peng; Qingli Zhang; Renqin Dou ｜ 1 Unit 91550 of PLA, China; 2 Harbin Institute of Technology, China; 3 Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, ChinaLD pumped Nd:GdNbO4 926 nm laser based on quasi-three-level 4F3/2→4I9/2 transition is reported. The maximum average output power of 393 mW at 926 nm is obtained with an optical-to-optical efficiency of 26.0%.

CIOP2018-2018-000100Experimental investigation of laser shock peening on TC17 titanium alloy for Thin-wall WorkpiecesBoyu Sun; Hongchao Qiao; Jibin zhao; Ying Lu ｜ Shenyang Institute of Automation, Chinese Academy of Science, ChinaTo study the performance and microstructure of TC17 thin-walled parts in shock wave and its reflection wave induced by laser, TC17 titanium alloy samples are processed using YAG laser with the wavelength of 1064 nm, pulse energy of 7J and pulse width of 15ns.

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CIOP2018-2018-000105Paint removal based thermal stress with a high repetition pulse fiber laserChenwei Wu; Jiawei Xu; Fan Gao; Baoxing Xiong; Tiancheng Yu; Xiao Yuan ｜ Soochow University, ChinaLaser cleaning techniques used for paint removal have unique advantages. Stripping the paint with high repetition pulse laser based thermal stress is considered in this paper.

CIOP2018-2018-000117Laser Cleaning Soil Rust Layer on the Surface of Ceramic ArtifactsJiawei Xu; Chenwei Wu; Fan Gao; Baoxing Xiong; Tiancheng Yu; Xiao Yuan ｜ Soochow University, ChinaIn this paper, the efficiency of cleaning soil rust layer on ceramic artifacts by the way of ablation and thermal stress is compared. And a two-layer structure model is constructed to research the mechanism of cleaning by thermal stress.

CIOP2018-2018-000125Improvement of the Conversion Efficiency of Fifth-harmonic-generation for ~1μmYuanyuan Fan; Xingliang Song; Yi Zhou ｜ Academy of Opto-Electronics, Chinese Academy of Sciences, ChinaAt present, deep ultraviolet (DUV) lasers at the wavelength of fifth harmonics (5HG) of 1μm (eg. 213 nm/221 nm) are widely utilized in science and industry. The generation of these DUV lasers by nonlinear frequency conversion processes using solid-state lasers as the fundamental frequency is reviewed.

CIOP2018-2018-000156Research on nonlinear cascaded frequency conversionChangshui Chen; Tengfei Wang; Wenhui Zhou ｜ South China Normal University, ChinaWe demonstrate the highly efficient wavelength cascaded conversion scheme and establish a coupling model by analyzing optical adiabatic passages.

CIOP2018-2018-000159Compressible noise-like pulses generating in an Yb-doped fiber nonlinear amplifierRunqin Xu; Jinrong Tian; Yanrong Song ｜ Beijing University of Technology, ChinaIt is demonstrated that noise-like pulses (NLPs) could be generated in an Yb-doped fiber nonlinear amplifier seeded by dissipative solitons. Through a grating pair, the NLPs could be compressed. Corresponding mathematic research is also carried out.

CIOP2018-2018-000161Efficient intra-cavity continuous-wave MgO:PPLN optical parametric oscillator with compact V-type cavityYongchang Zhang; Shencheng Shi; Ximei Zhang; Jing Zhang; Yanmin Duan; Jin Guo; Haiyong Zhu ｜ Wenzhou University, ChinaEfficient continuous-wave periodically poled MgO:LiNbO3 optical parametric oscillators (MgO:PPLN-OPOs) based on linear and V-type cavity were comparatively investigated.

CIOP2018-2018-000164Dual-wavelength Tm,Ho:LLF laser operating at 1895 and 1950 nmWeijun Ling1; Tao Xia1; Rui Sun1,2; Chen Cheng1,2, Yali Zhang2 ｜ 1 Tianshui Normal University, China; 2 Baoji University of Arts and Sciences, ChinaWe demonstrated a dual-wavelength Tm,Ho:LuLiF4 laser operating at 1895nm and 1950nm. The dual-wavelength laser is very useful for the generation of coherent light source in terahertz band.

Poster Session

Poster


CIOP2018-2018-000218Mid-infrared upconversion imaging pumped by sub-nanosecond micro-cavity laserLingwei Zhao1; Lei Liu1,2; Wei Zhao1; Chuan Guo1; Hongyan Wang1; Weihong Hua1 ｜ 1 National University of Defense Technology, China; 2 The Institute of Optics and Electronics, Chinese Academy of Science, ChinaMid-infrared upconversion imaging are widely demanded in revealing molecular rovibrational transitions, detecting spectral fingerprints of carbon-hydrogen bonds, monitoring atmospheric trace molecules, sensing various types of environmental gases, and even analyzing exhaled human breath for medical diagnostics.

CIOP2018-2018-000223A mode-locked Er-doped fiber laser using semiconductor saturable absorber mirror and faraday rotator mirrorsBo Zhou1; Zhongrong Ning2; Ruibo Zhu2; Yuwen Duan1; Ru Zhang1 ｜ 1 Beijing University of Posts and Telecommunications, China; 2 State Grid Shanxi Electric Power Company, ChinaAn improved mode-locked Erbium-doped fiber laser based on faraday rotator mirror and SESAM is presented with stable 2nd harmonic mode locking at a repetition rate of 75 MHz, and a pulse duration of 1.2 ps.

CIOP2018-2018-000224Passively mode-locked fiber laser using nonlinear multimode interference of step-index multimode fiberTao Chen; Qiaoli Zhang; Yaping Zhang; Wei Xia ｜ University of Jinan, ChinaWe demonstrate a nonlinear multimode interference saturable absorber based on step-index multimode fiber for operation of the mode-locked fiber laser.

CIOP2018-2018-000229The study of the effect of misaligned spherical mirror on the output beam of 2kW Radio Frequency slab CO2 lasersLongsheng Xiao1; Weihong Yang2; Xiahui Tang3; Hanyuan Chen3 ｜ 1 Hubei University of Education, China; 2 Huazhong University of Science and Technology Wenhua College, China; 3 Huazhong University of Science and Technology, ChinaIn this paper, the effect of lateral displacement and angle misaligned spherical mirror on the intensity distribution and the power loss of the output beam is researched based on the misaligned general diffraction integral formula.

CIOP2018-2018-000245Nanosecond laser pulse ablation of plasma characteristics of energetic liquid doped with carbon powderJing Qi, Siqi Zhang, Weichong Tang, Ke Xiao, Haochong Huang, Lu Gao, Hua Gao, Zili Zhang, Zhiyuan Zheng ｜China University of Geosciences, ChinaIn order to study the ablation characteristics of high energetic liquid in laser propulsion technology, glycidyl azide polymer is used as an ablation target, which is an energetic polymer with excellent propulsion efficiency. Furthermore, the carbon nano-powders is doped to increase the absorption.

CIOP2018-2018-000254High-gain amplification of weak signal based on stimulated Brillouin scattering in optical fiberLiwen Sheng; Zhiwei Lu; Dexin Ba ｜ Harbin Institute of Technology, ChinaA high-gain and frequency-selective amplifier for week optical signal based on stimulated Brillouin scattering in fiber is proposed and studied. In experiment, a 70-dB amplification was achieved for 430-nw (peak power) pulse.

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CIOP2018-2018-000256Enhancement of the weak 1064 nm signal based on degenerated optical parametric amplificationWei Zhao1; Chuan Guo1; Lingwei Zhao 1; Lei Liu 1,2; Yu Ning 1; Hongyan Wang1 ｜ 1 National University of Defense Technology, China; 2 The Institute of Optics and Electronics, Chinese Academy of Science, ChinaA scheme based on degenerated optical parametric amplification for enhancing the weak 1064nm signal is proposed and researched, and it could be extended to image’s enhancement.

CIOP2018-2018-000273Measurement and compensation for the chromatic aberration of SGII-5PW laser systemZiruo Cui1,2; Jun Kang1,2; Ping Zhu1,2; Qingwei Yang1,2; Xinglong Xie1,2; Meizhi Sun1,2; Haidong Zhu1,2; Ailin Guo1,2; Qi Gao1,2; Jianqiang Zhu1 ｜ 1 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, China; 2 University of Chinese Academy of Sciences, ChinaThe Pulse time delay (PTD) as well as defocus in SGII-5PW ultrashort high power laser system is investigated and measured. A pre-compensator is proposed and designed to pre-correct the chromatic aberration of this system.

CIOP2018-2018-000279Study on cascaded tunable DBR semiconductor laser with wide tuning range and fast switching speedZhengpeng Zou; Yong Zhao; Chunliang Ma; Min Chen; Yuechun Shi; Xiangfei Chen ｜ Nanjing University, ChinaA compact cascaded tunable distributed Bragg reflection (DBR) semiconductor laser. Each laser section (LS) is formed by two adjacent passive grating sections (GSs) with slightly different Bragg wavelengths and an active section (AS) between them.

CIOP2018-2018-000287Numerical investigation of scaling of diode pumped metastable rare-gas laser: end-pumped, MOPAHanyuan Chen; Sichen Long; Qinying Xiong; Xiahui Tang ｜ Huazhong University of Science and Technology, ChinaAn efficient numerical investigation for the diode end-pumped metastable rare-gas amplifier with a five-level physical model has been set up. Influences of the pump power and the cell length on the output laser are simulated and discussed.

CIOP2018-2018-000294A 2.2J all-diode-pumped Nd:YAG burst-mode laser at repetition rate of 10kHzXudong Li1; Guichuan Xu1; Renpeng Yan1; Wentao Wu1; Zhixiang Liu2; Xiaolin Wen2; Deying Chen1 ｜ 1 Harbin Institute of Technology, China; 2 Shenzhen aerospace industry technology research institute, ChinaA diode-pumped Nd:YAG burst-mode laser was demonstrated. The total burst energy of 2.2J at 10 kHz was achieved during 2ms pumping duration. Each burst contained 19 pulses and the pulse energy was up to 116mJ.

CIOP2018-2018-000330Q-Switched Tm-doped Fiber Ring Laser Using Mo0.2W0.8S2 Saturable AbsorberQuan Hu1; Junli Wang1; Lei Chen1; Haiting Yan2; Lingjie Meng2; Jiangfeng Zhu1; Zhiyi Wei3 ｜ 1 Xidian University, China; 2 Xi’an Jiaotong University, China; 3 Institite of Physics, Chinese Academy of Sciences, ChinaA passively Q-switched Tm-doped fiber laser using Mo0.2W0.8S2 polymer films as saturable absorber (SA) has been demonstrated. The maximum output power of 7.3 mW and the minimum pulse width of 11.7 μs are obtained

Poster Session

Poster


CIOP2018-2018-000355Study on switchable and spacing-tunable dual wavelength second harmonic generation in 1.31 um bandJian Jiang; Ruiting Wang; Xuan Xiao; Siyao Yu; Zhihui Liu; Zuxing Zhang ｜ Nanjing University of Posts and Telecommunications, ChinaDual-wavelength frequency doubling with transverse nested optical superlattice is investigated. The ratio of frequency doubling of 1310nm and 1315nm can be controlled. The study shows that the spacing of the fundamental wavelengths is tuned by temperature

CIOP2018-2018-000377Theoretical study on maximum DFG acceptance bandwidth in PPLNJian Jiang; Zhihui Liu; Kai Wang; Siyao Yu; Ruiting Wang; Zuxing Zhang ｜ Nanjing University of Posts and Telecommunications, ChinaThe properties of the maximum DFG bandwidth under the QPM condition have been studied with a 10mm PPLN crystal. When the pump wavelengths are located in the region of 0.6-0.94um, the maximum bandwidths increase from 63nm to 995nm. Meanwhile, the grating periods and the tuning ranges of the signal and the idler wavelengths have also been studied.

CIOP2018-2018-000405Theoretical Research on New Photoelectric Mixing Technology Based on Electro-optical ModulationYuming Bu; Zhaoyang Zeng; Xiaoping Du; Yishuo Song ｜ Space Engineering University, ChinaFor the current photoelectric mixing technology, there are many problems such as small array size, high noise level and poor receiving stability. Combined with the idea of microwave photonic down-conversion technology, this paper proposes a new photoelectric mixing technology based on electro-optical modulation.

CIOP2018-2018-000406Characteristics of the calamines analyzed by the Terahertz time domain technologyS. B. Hao; H. C. Huang; Y. Y. Ma; W. C. Tang; Z. L. Zhang; Z. Y. Zheng ｜ China University of Geosciences, ChinaThe characteristics of calamines has been firstly analyzed by the terahertz time domain spectra. Results show that the main composition of the calamine is calcite. And the terahertz absorption relates with the particle sizes, sample thickness, as well as the proportion of polytetrafluoretyhylene mixed in the sample.

CIOP2018-2018-000426Optical Parametric Amplifier to Generate Optical Comb in 2 μm Band by Adjusting Double-pump Optical ParametersWeiKong Yu ｜ Hang Zhou Dianzi University, ChinaAn optical parametric amplifier is designed to generate adjustable wavelength and interval of optical comb in 2 μm band.

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9. Quantum Optics and Quantum Information Technology

CIOP2018-2018-000417Characteristics of the calamines analyzed by the Terahertz time domain technologyYa Xiao1; Zhen-Peng Xu2; Qiang Li1; Kai Sun1; Jin-Ming Cui1; Zong-Quan Zhou1; Hong-Yi Su2,3; Ad´an Cabello4; Jin-Shi Xu1; Jing-Ling Chen2,5; Chuan-Feng Li1; Guang-Can Guo1 ｜ 1 University of Science and Technology of China, China; 2 Nankai University, China; 3 Chonnam National University, Korea; 4 Universidad de Sevilla, Spain; 5 National University of Singapore, SingaporeWe introduce an optimal quantum state-independent contextuality inequality in which the deviation from the classical bound is maximal and experimentally test it using single photons, while satisfying the requirement of no-signaling within the experimental error.

10. Laser Micro-Nano Processing and Fabrication

CIOP2018-2018-000015The preparation and post-process production of 940nm high power LDHaikuo Wang; Jianjun Li; Yuancheng Wang; Menghuan Wang; Zexu Yuan ｜ Beijing University of Technology, ChinaUsing the non-symmetrical large optical cavity structure, the double isolated channel structure is introduced and the cavity length is increased, resulting in a single cavity surface 17W maximum output laser.

CIOP2018-2018-000046Study on the influence of scanning strategy on the morphology of laser micro-dimple texturingXianghua Zhan; Yancong Liu; Peng Yi; Delong Jia; Peifa Xiao ｜ China University of Petroleum, ChinaGiven fewer researches about the effect of laser scanning strategy on micro-dimple texture has been reported, the effect of laser scanning strategy on large diameter micro-dimple texturing is discussed.

CIOP2018-2018-000056Maskless fabrication of multifocal microlens arrays on silica glass by multi-step laser-tunable wet etching methodYan Ou1,2; Jinwen Qian1; Yifeng Xiao1; Liang Wu1; Yanfei Xu1; Minghua Zhang1 ｜ 1 Xiangtan University, China; 2 Xi’an Jiaotong University, ChinaThis paper reports a simple method of creating multifocal microlens arrays on silica glass. The method involves the multi-step femtosecond-laser exposures followed by a chemical wet-etching process on silica glass, which enable fabrication of multi-layers concentric microstructures with high-quality and smooth curved surfaces.

CIOP2018-2018-000121Ring-shaped waveguides in BGO crystal by femtosecond laser writingLingqi Li1; Carolina Romero2; Javier R. Vázquez de Aldana2; Feng Chen1 ｜ 1 Shandong University; 2 Universidad de Salamanca, SpainWe report on the fabrication of ring-shaped waveguides operating at the telecommunication band in a cubic Bi4Ge3O12 (BGO) crystal by using technique of femtosecond laser writing.

Poster Session

Poster


CIOP2018-2018-000145Experimental Study on High Power CO2 Laser Brazing of Diamond GritsWeihong Yang1; Longsheng Xiao2; Xue Zhang3; Xiahui Tang4 ｜ 1 Huazhong University of Science and Technology Wenhua College, China; 2 Hubei University of Education, China;3 Wuchang University of Technology, China;4 Huazhong University of Science and Technology, ChinaHigh power transverse flow CO2 laser was used to scan the brazing alloy and diamond grits, the paper studied the influence of laser technological parameters on brazing layer combination performance and diamond grits thermal damage, analyzed the thermal damage mechanism of laser brazed diamond and combination mechanism of brazing layer and diamond grits.

CIOP2018-2018-000228Cladding waveguides and splitters fabricated by femtosecond laser inscriptionShiling Li; Yongkai Ye ｜ Qufu Normal University, ChinaDepressed circular cladding, buried waveguides and optical waveguide splitters with circular geometry were fabricated in z cut LiNbO3 crystals with an ultrafast Yb-doped fiber aster-oscillator power amplifier laser. The splitters show very good properties including symmetrical output ends and equalized splitting ratio.

CIOP2018-2018-000231All-femtosecond-laser micromachined ridge waveguide in Nd:YAG crystal as a compact platform for ultrafast photonicsZiqi Li1; Javier R. Vázquez de Aldana2; Ningning Dong3; Jun Wang3; Haohai Yu1; Feng Chen1 ｜ 1 Shandong University, China; 2 Universidad de Salamanca, Spain;3 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, ChinaIn this work, we report on a new fabrication routine of ridge waveguides in Nd:YAG crystal by all-femtosecond-laser micromachining and demonstrate its potential as a novel platform for ultrafast pulse lasing.

CIOP2018-2018-000232Dual-line optical waveguides in Nd and MgO doped lithum niobate fabricated by direct femtosecond laser writingBingcheng Xiong ｜ Shandong University, ChinaWe report on the fabrication of dual-line waveguides by direct femtosecond laser writing in Nd and MgO doped LiNO3 crystal. The fabricated waveguides have also been characterized in detail.

CIOP2018-2018-000235Modal control adopting multiscan waveguides written by femtosecond laser in congruent LiNbO3BinZhang ｜ Shandong University, ChinaWe demonstrate the modal control at specific wavelength adopting multiscan waveguides written by femtosecond laser in congruent LiNbO3, for example, operating at 632.8 nm and 1550 nm along TM polarization.

CIOP2018-2018-000258Polymer laser based on distributed Bragg gratingsCuiying Huang; Xinping Zhang ｜ Beijing University of Technology, ChinaA binary grating consisting of a large- and small-period gratings was produced by photolithography. Periodically arranged microcavities based on distributed Bragg reflectors were thus constructed, which enabled efficient lasing with multiple longitudinal modes.

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CIOP2018-2018-000365Femtosecond laser direct writing quasi phase-matched waveguides in lithium niobate by structuring the x2 nonlinearityBing Zhu, Licheng Ge, Haowei Jiang, Chenghao Lu, Yi’an Liu, Yuping Chen, Xianfeng Chen ｜ Shanghai Jiao Tong University, ChinaWe demonstrate second harmonic generation in quasi phase-matched waveguide structures fabricated by direct laser writing in lithium niobate.

CIOP2018-2018-000366Study on Ablation Threshold of Femtosecond Laser on Fused Silica GlassJinlong Yu; Xiaoyan Sun; Youwang Hu; Dongmei Cui ｜ Central South University, ChinaWe studied the changing trend of the sample pore size by changing the laser energy during processing in each liquid environment and material removal mechanism of fused silica and calculated the damage threshold of fused silica under different liquid environment.

CIOP2018-2018-000367Femtosecond laser cutting ultra thin fused silicaJianfen Zheng; Xiaoyan Sun; Youwang Hu; Chang Liang ｜ Central South University, ChinaA method of a two-step cutting was proposed, and high-quality edge processing was realized on a 100-μm-thick fused silica without chipping or cracks.

CIOP2018-2018-000371Experimental investigation of femtosecond laser shock peening of Mg-3Gd alloyChenghao Lu; Licheng Ge; Haowei Jiang; Bing Zhu; Yi’an Liu; Yuping Chen; Xianfeng Chen ｜ Shanghai Jiao Tong University, ChinaIn this paper, microstructure and micro-hardness of Mg-3Gd alloy treated by femtosecond laser shock peening with or without the sacrificial layer and confining layer were investigated by scanning electron microscope and micro-hardness test.

CIOP2018-2018-000400Specklegram temperature sensor based on femtosecond laser inscribed depressed cladding waveguides in Nd:YAG crystalShan He; Ziyang Zhang; Hongliang Liu ｜ Nankai University, ChinaThe waveguide specklegram sensor (WSS) based on the femtosecond laser inscribed cladding waveguides in Nd:YAG crystal for temperature sensing owns a much more sensitive performance to temperature variation when the laser with shorter wavelength is utilized.

Poster Session

Poster


11. Microwave Photonics

CIOP2018-2018-000021Reliability and manufacturability of 850 nm 50 Gbit/s PAM-4 vertical-cavity surface-emitting lasersGuangzheng Zhou1; Shun Yao1; Hongyan Yu1; Zhaochen Lv1; Qing Wang1; Tianbao Zhou2; Ying Li1; Tian Lan1; Yu Xia2; Luguang Lang1; Liwen Cheng3; Guoliang Dong2; Lianhong Kang2; Zhiyong Wang1 ｜ 1 Beijing University of Technology, China; 2 Sino-semiconductor Photonics Integrated Circuit Co., Ltd., China;3 Yangzhou University, ChinaThe 850 nm 50Gbit/s PAM-4 VCSELs with high performances of high reliability and manufacturability are presented in this paper. The current density and power dissipation density are low to 15 kA/cm2 and 25.5 kJ/cm2, respectively.

CIOP2018-2018-000051Study on the inspection of polyethylene gas pipe defect based on terahertz time domain spectroscopyQiang Chen1; Qiang Wang1; Yue Yu2; XiaoHong Gu1; ZhangWei Ling3 ｜ 1 China Jiliang University, China; 2 China Special Equipment Inspection and Research Institute, China; 3 Zhejiang Provincial Special Equipment Inspection and Research Institute, ChinaTo verify the ability of the THz-TDS on the inspection of the polyethylene pipes, we designed a polyethylene sample and did some work on it.

CIOP2018-2018-000063Effect of the ratio of oxidizing agent and reducing agent on the properties of Mg/PTFE/ Pb3O4 pyrotechnicsBing Wang; Zongsheng Chen; Wang Chen ｜ National University of Defense Technology, China5 different pharmaceutical formulations are designed to study the effect of the ratio of oxidizing agent and reducing agent on the performance of the trilead tetraoxide/ Teflon/magnesium powder decoy compounding agent.

CIOP2018-2018-000081A new approach to generate the optical millimeter-wave signals using frequency 12-tupling without an optical filterDongfei Wang; Xianfeng Tang; Yichen Fan; Xiaoguang Zhang; Lixia Xi; Wenbo Zhang ｜ Beijing University of Posts and Telecommunications, ChinaWe propose a novel approach to generate high-quality optical millimeter-wave signals using frequency 12-tupling without an optical filter. OSSR higher than 37.65 dB and RFSSR not less than 32.08 dB are achieved in this scheme.

CIOP2018-2018-000313Experimental Study on Protection Performance of the Plasma Array against the NEMPYang Liu; Bing Wang; Zongsheng Chen; Zhongcai Yuan ｜ National University of Defense Technology, ChinaStrong electromagnetic pulse (EMP) may lead to serious damage once it is coupled into the interior of the electronic system. As a kind of special electromagnetic medium, the plasma has the ability of shielding strong EMP. Therefore, EMP protection technology based on the plasma is of pratical significance.

Poster Session

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CIOP2018-2018-000326Tunable ultra-broadband microwave frequency combs generation using semiconductor laser injected by intensity-modulated lightXin Jiang; Nian Fang; Lutang Wang ｜ Shanghai University, ChinaA generation scheme of tunable ultra-broadband microwave frequency combs (MFCs) using a semiconductor laser injected by intensity-modulated light is proposed. The bandwidth of MFC generated reaches 108GHz in an amplitude variation range of ± 5dB.

CIOP2018-2018-000358High-Order Waveguide Mode Generation by Dielectric GratingChaohai Du; Zhen Ma; Zichao Gao; Pukun Liu ｜ Peking University, ChinaA universal technique scheme for output-mode-tunable and ultra-simple modes stimulation is presented. The scheme utilizes specific circular dielectric grating to modulate the coupling coefficient of scattered waves and stimulate high-order waveguide modes.

12. Nano Photonics and 2D Optoelectronics

CIOP2018-2018-000017Growth, Structure and Optical Properties of ZnSe:Co Thin FilmsShufeng Li; Li Wang; Xueqiong Su; Yong Pan; Dongwen Gao; Xiaowei Han ｜ 1 Beijing University of Technology, China; 2 The Chinese People’s Armed Police Forces Academy, ChinaZnSe:Co thin films were grown by pulsed laser deposition. The propagation of plasma plume and the crystal structure, transmission spectra, optical band gap, refractive index and dispersion parameters of films were investigated in the paper.

CIOP2018-2018-000048Analysis of the thermal transport properties of grapheneX. M. MA; J. F. ZHANG; C. C. GUO; K. LIU1; F. WU; W. XU; Z. H. ZHU; S. Q. QIN ｜ National University of Defense Technology, ChinaElectrically biased graphene has been broadly studied in experiments as a novel thermal radiation emitter. Yet the systematic theory is lacked for the quantitative description of the thermal radiation, heat transfer and electrical properties of electrically biased graphene.

CIOP2018-2018-000049Controllable directional scattering of airy nanohole arrayHaiming Wei; Yu Zhuang; Zijun Wu; Hongliang Liu; Pengfei Wu ｜ Nankai University, ChinaWe generate a sandglass-shape scattered beam by utilizing airy nanohole array within dielectric aluminum oxide film.

CIOP2018-2018-000147A linear superconducting nanowire array for photon-efficient 3D imagingLingdong Kong; Qingyuan Zhao; Kai Zheng; Lin Kang; Jian Chen; Peiheng Wu ｜ Nanjing University, ChinaWe present a linear superconducting nanowire array of optimized designs. Although the linear array has spatial sensitivity in only one direction, with scanning the image in the other direction and getting time-of-flight, a high-resolution 3-dimentional image could be achieved.

Poster Session

Poster


CIOP2018-2018-000241Ultra-long focusing of microsphere lens via wavefront reconstruction in microsphereJinzhong Ling; Dancui Li; Xin Liu; Xiaorui Wang ｜ Xidian University, ChinaA microsphere lens with ultra-long focusing was achieved by the wavefront reconstruction in microsphere via the reflections from microsphere holder, and its focal length could be optimized by tuning the opening angle of microsphere holder.

CIOP2018-2018-000283Polarization evolution and propagation properties of the circular Airy vector vortex beamsJin Zhang; Xiaoyan Yu; Yuqing Chen; Xin Dai; Mian Huang; Dan Liu ｜ Guiyang University, ChinaThe circular Airy vector vortex beams generated and modulated by the dielectric metasurface is investigated theoretically. We would like to build the intrinsic connection between the vector vortex light field and the Pancharatnam-Berry phase.

CIOP2018-2018-000300High-Efficient Electro-Optic Modulation Based on Graphene and Fano-Like Resonance in Silica MicrocavityHuibo Fan; Li Fan; Changquan Xia ｜ Yangzhou University, ChinaHigh-Efficient Electro-Optic Modulation Based on Graphene and Fano-Like Resonance in Silica Microcavity.

CIOP2018-2018-000337Shell thickness dependent plasmonic resonances in concentric core-shell nanoparticlesBenzheng Wei; Yunfeng Xu ｜ Shandong University of Traditional Chinese Medicine, ChinaThe effects of silver shell thickness on the plasmonic resonances in single layer concentric core-shell particles is investigated based on Mie theory，which shows plasmon hybridization and phase retardation can influence the shift direction significantly.

CIOP2018-2018-000397Unidirectional transmission characters of photonic crystal heterostructure based on total reflection interfaceHongming Fei; Min Wu; Han Lin; Yibiao Yang; Xin Liu; Mingda Zhang ｜ Taiyuan University of Technology, ChinaIn this paper, a heterostructure is composed by two-dimensional square-lattice photonic crystals, in which periodically distributed dielectric cylinders are embedded in silica (PC1) and silicon (PC2) materials, respectively.

CIOP2018-2018-000414High performance polarization-independent all-optical diodeHongming Fei1; Min Wu1; Han Lin2; Xin Liu1; Yibiao Yang1; Mingda Zhang1; Binzhao Cao1 ｜ 1 Taiyuan University of Technology, China; 2 Swinburne University of Technology, AustraliaAn all-optical diode based on photonic crystal (PhC) heterostructure composing of two square-lattice 2D PhCs is proposed to achieve polarization-independent non-reciprocal transmission of lights in the telecommunication wavelength range with broad bandwidth of 100 nm.

Poster Session

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CIOP2018-2018-000416Role of nanocone and nanohemisphere arrays in improving light trapping of thin film solar cellsZhaopeng Xu; Taoran ZhangA solar cell with Si nanocone arrays on the top and Ag nanohemisphere arrays on bottom surface, which will contribute an average absorption of 78.533% and a 36.643mA/cm2 short circuit photocurrent density were proposed.

CIOP2018-2018-000418Design of high efficiency solar cell with frequency upconversion nanostructure arrayChenbo Wang; Jian Wang; Taoran Zhang; Haonan Zhang; Miaomiao Lin; Zhengkun Shen; Xiaoling Zhang; Jingsheng Chang; Zhaopeng Xu ｜ Yanshan University, ChinaThe light trapping performance of NaYF4 upconversion nanospheres are systematically studied by COMSOL Multiphysics. Cells with upconversion arrays of different optimal parameters can achieve a better performance than bare silicon solar cells.

CIOP2018-2018-000419Efficient light trapping in ultrathin-crystalline-silicon solar cells using TiO2 nanosphere arraysJian Wang; Chenbo Wang; Daxue Du; Xiaoya Duan; Taoran Zhang; Qizhu Lu; Haiyan Wang; Zhaopeng Xu ｜Yanshan University, ChinaThe results show that the sphere nanostructure can highly increase the light absorption of the ultrathin-crystalline-silicon in the wavelengths from 300 to 1200 nm. The average absorption rate increases by 58.63% compared to 2-μm-thick crystalline silicon.

13. Cavity Optomechanics

CIOP2018-2018-000257Photonic bandgap properties of integral photonic crystals and photonic crystals with defects in PolymerLin Ren; Xin Li; Yunpeng Li; Xue Hao ｜ Aviation University of Air Force, ChinaWe report various photonic crystals (PhCs) structures by using the femtosecond laser-induced two-photon photopolymerization of SU-8 resin. The bandgap properties were investigated. In addition, defects were introduced in graphite-lattice PhCs and the strong localization of photons in our structure with defects at λ=5 μm was achieved.

CIOP2018-2018-000331High-precision gravity measurement using matter-wave interferometryXingyan Chen1,2; Zhangqi Yin2 ｜ 1 Peking University, China;H2 Tsinghua University, ChinaWe show that the gravitational acceleration can be measured with several orders of magnitudes greater than the atomic interferometry method with the Ramsey interferometry scheme using a NV center coupled to a harmonic oscillator.


CIOP2018-2018-000369Optomechanical coupling between a suspended-absorptive graphene and an optical cavityXusheng Cai; Kaiyu Cui; Yidong Huang ｜ Tsinghua University, ChinaA membrane-inside-cavity structure is studied, in which the suspended graphene serves as not only a vibrating membrane, but also scattering and dissipative channels for cavity photons. We find that through adjusting the relative position of graphene and optimizing the cavity detuning, it is possible to cooling down a graphene resonator to the quantum ground state beyond the sideband-resolved restriction.

CIOP2018-2018-000384An optomechanical nanobeam for high-precision mass sensingFei Pan; Kaiyu Cui; Yidong Huang ｜ Tsinghua University, ChinaWe demonstrate a new method that is based on an optomechanical cavity combining with the amplification and heating process. The resolution evaluated from experimental results achieves 7.1 kDa in an ambient environment.

CIOP2018-2018-000396Mechanical bound state in the continuum for optomechanical microresonatorsYuan Chen; Zhen Shen; Xiao Xiong; Chunhua Dong; Changling Zou; Guangcan Guo ｜ University of Science and Technology of China, ChinaClamping loss limits the quality factor of mechanical mode in the optomechanical resonators supported with the supporting stem. Using the mechanical bound state in the continuum, we have found that the mechanical clamping loss can be avoided.

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