CPqD Event Presentation Vff Published

High Speed Optical Communicatios Trends, Opportunities and Challenges

Jose Maranhao Product Manager [email protected] + 55 19 2104-9655

May 2012

Towards Terabit per Second Optical Networking International Workshop on Trends in Optical Technologies

Padtec S/A 2012 All Rights Reserved CONFIDENTIAL 2

Outline

Trends and Opportunities

DWDM Transponders Overview

High Speed Ports on WDM Equipment - Market Trends

Implementation Agreements for 100G and Beyond (OIF)

Challenges

Ultra Long Haul Systems

Trial with 40G and 100G coherent channels over 17 spans of 35dB

Systems Impacts of Coherent and Non-Coherent Channels

Mesh Networks CDC ROADMs

3

DWDM Transponders Overview


OTN DWDM Transponder

OTN Fibre

Channel Ethernet SDH

Client Interfaces

Protocols

DWDM Interface

N client interfaces

GFEC 7% OH OTN Mapper/ Framer

FEC Standards

Capacity

EFEC 7% OH EFEC 25% OH

OTU1 2.5 Gbps

OTU2 10 Gbps

OTU3 40 Gbps

OTU4 100 Gbps

OEO DWDM Module

Capacity

NRZ RZ DPSK DQPSK DP-QPSK Modulation

Format

OTU1 2.5 Gbps

OTU2 10 Gbps

OTU3 40 Gbps

OTU4 100 Gbps



OTN 8G FC Ethernet 10GbE

SDH STM-64

Client Interfaces

Protocols


FEC Standards

Capacity


DWDM Interface

OEO DWDM Module

Capacity


Format

4 client interfaces

40G DQPSK Muxponder

OTU1 2.5 Gbps

OTU2 10 Gbps

OTU3 40 Gbps

OTU4 100 Gbps

OTU1 2.5 Gbps

OTU2 10 Gbps

OTU3 40 Gbps

OTU4 100 Gbps



OTN 8G FC Ethernet 10GbE

SDH STM-64

Client Interfaces

Protocols

DWDM Interface

10 client interfaces

100G DP-QPSK Muxponder


FEC Standards

Capacity


OTU1 2.5 Gbps

OTU2 10 Gbps

OTU3 40 Gbps

OTU4 100 Gbps

OEO DWDM Module

Capacity


Format

OTU1 2.5 Gbps

OTU2 10 Gbps

OTU3 40 Gbps

OTU4 100 Gbps



OTN OTU4

Fibre Channel

Ethernet 100GbE

SDH Client

Interfaces Protocols

DWDM Interface

1 client interface


FEC Standards

Capacity


OTU1 2.5 Gbps

OTU2 10 Gbps

OTU3 40 Gbps

OTU4 100 Gbps

100G DP-QPSK Terminal

OEO DWDM Module

Capacity


Format

OTU1 2.5 Gbps

OTU2 10 Gbps

OTU3 40 Gbps

OTU4 100 Gbps


100G Transponder Eco System

Client Interfaces

DWDM Interface

1 client interface

OTN Mapper/ Framer

OEO DWDM Module

100G CFP

OTU4 Mapper/ Framer

OTU4 LH MSA-168 DWDM Module

9

High Speed Ports on WDM Equipments Trends and Opportunities


The entire market for optical equipment reached USD 13.4B in 2011

It includes Transponders, OADM, ROADM, Amplifiers, MUX/DEMUX etc

41% spent on legacy SONET/SDH equipment and 59% on WDM transport

equipment

Forecast indicates a market growth of +6% CAGR between 2010 and 2015

OTN equipment spending will be about 65% of total optical spend by

2015

It includes OTN Transponders (mainly) and OTN Switches

Forecast indicates an OTN market growth of +16% CAGR between 2010 and 2015

Optical Network Market Size and Forecast

Source: Infonetics Research, OTN Hardware Market Outlook, February 2012.

Padtec S/A 2012 All Rights Reserved CONFIDENTIAL

Ports < 10G

Growth in ports below 10G has nearly stopped over the past 3 years

Forecast indicates a market reduction of 8.4% CAGR between 2010 and 2015

11

Ports on WDM Equipment Market Size and Forecast

Sources: Infonetics Research, OTN Hardware Market Outlook, February 2012. OVUM, Network Infrastructure: Optical Components, November 2010.

10G Ports

10G ports continue to show growth as both clients and long reach interfaces

10G WDM transmission is not going out of style yet

Forecast indicates a market growth of 11.4% CAGR between 2010 and 2015

40G Ports

The worldwide market remained flat over 2009 and 2010


Most 40G deployments remain DQPSK

Forecast indicates strong market growth for DP-QPSK coherent over the next 3 years


100G Ports

Commercial 100G shipments began in 2011 with a very low volume

Even with many 100G trials being conducted, we do not expect significant volume

until 2013, while costs drop


Ports on WDM Equipment Market Size and Forecast

Source: Infonetics Research, OTN Hardware Market Outlook, February 2012.

13

Implementation Agreements for 100G and Beyond


Implementation Agreements Why?!

100G

400G

1T

10G (OTU2) DWDM Interface

Basically only two modulation formats have been deployed commercially

Modulation Formats: NRZ (mainly) and RZ

The industry, with fewer options for 10G DWDM interface implementation, was able

to design standardized components

The use of standardized components significantly reduces the investment risk, and

the industry can achieve higher volumes and lower costs quickly

Implementation Agreements were not needed for OTU2 DWDM Interfaces



40G (OTU3) DWDM Interface

Many modulation formats were considered because the challenging optical physical

constraints at 40Gbps.

Modulation Formats: ODB, NRZ-DPSK, RZ-DPSK, NRZ-DQPSK, RZ-DQPSK, DP-QPSK etc,.

With so many options of modulation formats, the industry was uncertain on which

one of them would be a better choice (cost x performance).

The lack of an implementation agreement over the standard modulation format had a

negative impact on the 40G DWDM time-to-market.

100G

400G

1T



The OIF Forum role in 100G DWDM Interfaces and beyond is to foment an eco

system to accelerate the availability of economically attractive transmissions

solutions for DWDM networks

Component Suppliers

Transceiver Suppliers

System Suppliers

Network Operators


100G Implementation Agreement

100G OIF Agreements Published

OIF-FD-100G-DWDM-01.0: 100G Ultra Long Haul DWDM Framework Document (June 2009)

OIF-PMQ-TX-01.0: Integrated Polarization Multiplexed Quadrature Modulated Transmitters (March 2010)

OIF-DPC-RX-01.1: Integrated Dual Polarization Intradyne Coherent Receivers (September 2011)

OIF-MSA-100GLH-EM-01.1: 100G Long-Haul DWDM Transmission Module - Electromechanical (September 2011)

OIF-FEC-100G-01.0: 100G Forward Error Correction White Paper (May 2010)

OIF-OFP-01.0: OTN Over Packet Fabric Protocol (OFP) Implementation Agreement (November 2011)

Padtec S/A 2012 All Rights Reserved CONFIDENTIAL

Modulation Format

DP-QPSK (Dual Polarization Quadrature Phase Shift Keying)

DSP

External FEC (SD-FEC)

Working together with the HD-FEC, it can achieves a higher NCG in order to have similar

OSNR results comparing with 10G/40G DWDM signals

Electrical Interface, Form Factor, Power Consumption

The OIF has not defined...

Standard SD-FEC algorithm

Standard algorithms for CD, DGD and non-linear compensation

Optical Layer Performance

18

100G Implementation Agreement

100G OIF Key Agreements

19

Coherent 100G/40G Trial over 17 spans of 35dB

Andr Aguiar

Stefan Tanenbaum

Roberto Nakamura

Srgio Timteo

Jos Maranho

Jos Alves (Oi)


Multiservice Optical Transport Voice Data Video Internet Storage

DWDM Optical Solutions

LightPad i1600G Platform is an optical integrated transport system of high capacity and low latency and can be applied not only in long distance networks (backbone, Long Haul and Ultra Long Haul) but also in metropolitan and storage networks SANs.

LightPad i1600G Platform


Amplifiers

1

MU

X

DE

MU

X

OA 3 OA OA

Transponders 2.5G / 10G 40G / 100G

Site 1 Site 2 TX RX

Regenerators(3R)

Topologies: P2P, Ring, Mesh.

Reach: Up to 2000 Km without 3R Regens.

DWDM Channels: 4, 8, 40 or 80 channels per fiber.

LightPad i1600G Platform


Muxponder 40 Gb/s G.709

OTU2 / OTU2e 10 GbE WAN 10 GbE LAN 8G FC STM-64

DWDM Signal OTU3 / OTU3e

14U Chassis Compatible

9U High, 2 slots

4 XFP Client Interfaces

Client Protocols

10GbE LAN

10GbE WAN

STM-64

8G / 10G Fibre Channel

OTU2 / OTU2e

OTU3/OTU3e (40G) Line Interface

DWDM 50GHz Tunable

Coherent Detection

DP-QPSK Modulation Format

CD Tolerance: +/- 55.000 ps/nm

DGD Tolerance: 100 ps

OSNR Tolerance: 13 dB (dB/0.1nm)

Muxponder 40G DP-QPSK Coherent

40G DP-QPSK Coherent


DWDM Signal OTU4 (OTL 4.10) HD-FEC 7% OH SD-FEC 20% OH

127.156Gb/s

Muxponder 100G DP-QPSK Coerente

14U Chassis Compatible

9U High, 3 slots

10 XFP Client Interfaces

Client Protocols

10GbE LAN

10GbE WAN

STM-64

8G / 10G Fibre Channel

OTU2 / OTU2e

OTU4 Line Interface

DWDM 50GHz Tunable

Coherent Detection

DP-QPSK Modulation Format

Compatible with 1+1 Protection Architectures (Recovery Time < 50msec)

CD Toletance: +/- 40.000 ps/nm

DGD Tolerance: 80 ps

OSNR Tolerance: 14 dB (dB/0.1nm)

Muxponder 100 Gb/s

G.709

OTU2 / OTU2e 10GbE LAN 10GbE WAN 8G FC STM-64




Thermal Simulations


Network Diagram Coherent 100G/40G Trial

BOA ROA LOA ROA LOA

16 x

100 Km

35 dB

100 Km

35 dB

VMUX 80ch DEMUX 80ch

Bank ofCW Lasers

40G DP-QPSKCoherent

40G DP-QPSKCoherent

100G DP-QPSKCoherent


17 x 100Km = 1700 Km17 x 35dB = 595 dB

195,60 THz

195,55 THz

195,50 THz

195,45 THz


Test Setup Coherent 100G/40G Trial


Results Coherent 100G/40G Trial


Bank ofCW Lasers

40G DP-QPSKCoherent

40G DP-QPSKCoherent



17 x 100Km = 1700 Km17 x 35dB = 595 dB

195,60 THz

195,55 THz

195,50 THz

195,45 THz

BOA ROA LOA ROA LOA

100 Km

35 dB

100 Km

35 dB

Optical Spectrum after 1700Km

16 x




Bank ofCW Lasers

40G DP-QPSKCoherent

40G DP-QPSKCoherent



17 x 100Km = 1700 Km17 x 35dB = 595 dB

195,60 THz

195,55 THz

195,50 THz

195,45 THz

BOA ROA LOA ROA LOA

100 Km

35 dB

100 Km

35 dB

100 Km

35 dB

GFF

GFF

16 x




Bank ofCW Lasers

40G DP-QPSKCoherent

40G DP-QPSKCoherent



17 x 100Km = 1700 Km17 x 35dB = 595 dB

195,60 THz

195,55 THz

195,50 THz

195,45 THz

BOA ROA LOA ROA LOA

100 Km

35 dB

100 Km

35 dB

100 Km

35 dB

GFF

GFF

16 xBit Error Free (15h)




Bank ofCW Lasers

40G DP-QPSKCoherent

40G DP-QPSKCoherent



17 x 100Km = 1700 Km17 x 35dB = 595 dB

195,60 THz

195,55 THz

195,50 THz

195,45 THz

BOA ROA LOA ROA LOA

100 Km

35 dB

100 Km

35 dB

100 Km

35 dB

GFF

GFF

16 xBit Error Free (12h)

33

System Impacts Coherent and Non-Coherent Channels


TX

TX

TX

DCF

DCF

RX

RX

RX

80 Km

CD: 1360 ps/nm

At: 20 dB

80 Km

CD: 1360 ps/nm

At: 20 dB

80 Km

CD: 1360 ps/nm

At: 20 dB

BOA LOA LOA POA

System Impacts (10G) Non-Coherent vs. 100G/40G Coherent

10G NRZ channels with EFEC 25% OH

OSNR Tolerance of 11 dB (dB/0.1nm)

CD Tolerance of 1400 ps/nm

For every 80 Km span, a new DCF has to be used

80 Km DCFs has na insetion loss around 5 dB

DCFs are usually positioned between a dual stage EDFA amplifier

Additional EDFA stages and losses from DCF degrades the 10G OSNR along

the network


TX

TX

TX

RX

RX

RX

80Km

CD: 1360ps/nm

At: 20dB

80Km

CD: 1360ps/nm

At: 20dB

80Km

CD: 1360ps/nm

At: 20dB

BOA LOA LOA POA

100G / 40G DP-QPSK Coherent channels

OSNR Tolerance of 14dB (dB/0.1nm)

CD Tolerance of +/- 40.000 ps/nm

Up to 2.000Km of fiber without DCF

Single stage EDFA amplifiers can be used instead dual stage

No OSNR degradation due to additional EDFA stages and losses from DCFs




Signal Power: -20 dBm

Noise Power: -60 dBm

OSNR: 40 dB

Signal Power: 0 dBm

Noise Power: -32.20dBm

OSNR Degradation: 7,80dB

G = 20 dB NF = 5 dB



OSNR: 40 dB

Signal Power: 0 dBm

Noise Power: -28,65 dBm

OSNR Degradation: 11,35 dB

G = 25 dB NF = 4 dB

DCF IL = 5 dB



OSNR: 40 dB

Signal Power: 0 dBm

Noise Power: -31,37 dBm

OSNR Degradation: 8,63 dB

G = 10 dB NF = 6 dB

DCF IL = 5 dB

G = 15 dB NF = 5.5 dB

37

Mesh Networks Challenges


Mesh Network Challenges

Termination ROADM

Peer to Peer Network

Mesh Network


WSS ROADM



WDM Port 1

WDM Port 2

WDM Port 3

IN

OUT

WDM Port 8

1

WSS 9x1

2

WSS 9x1

3

WSS 9x1

8

WSS 9x1

9

WSS 9x1

IN

OUT

IN

OUT

IN

OUT

WDM Port 9

IN

OUT

MUX

DMX

MUX

DMX

MUX

DMX

MUX

DMX

MUX

DMX

Ad

d/D

rop

1

Ad

d/D

rop

2

Ad

d/D

rop

3

Ad

d/D

rop

9

Splitter 1x9

Splitter 1x9

Splitter 1x9

Splitter 1x9

Splitter 1x9

Ad

d/D

rop

8


WSS ROADM



There are many different architectures for the Add/Drop Channels

Directionless ($)

The add/drop channels can be connected to any direction

Colourless and Directionless ($$)


Any transponder can be configured to any channel

Colourless, Directionless and Contentionless CDC ROADM ($$$$)


Any transponder can be configured to any channel

Diferent transponders can use the same channel since they are

connected to distinct directions

Designing the right architecture for each node of a mesh network is a current challenge Overall Costs x LSP Blocking Probability

Thanks!

padtec.com

High Speed Optical Communicatios Trends, Opportunities and Challenges

Jose Maranhao Product Manager [email protected] + 55 19 2104-9655

May 2012

Towards Terabit per Second Optical Networking International Workshop on Trends in Optical Technologies

CPqD Event Presentation Vff Published

Documents

Transcript of CPqD Event Presentation Vff Published