Huawei Ok Wdm and Ng-wdm Gye_1

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HUAWEI TECHNOLOGIES CO., LTD. www.huawei.com Ing. Francisco Cano S. MSc Optical Networking, Int’l Marketing Dept. Transmission Product Manager Huawei Technologies Co., Ltd. WDM Wavelength Division Multiplexing

Transcript of Huawei Ok Wdm and Ng-wdm Gye_1

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

Ing. Francisco Cano S. MScOptical Networking, Int’l Marketing Dept.

Transmission Product Manager

Huawei Technologies Co., Ltd.

WDM Wavelength

DivisionMultiplexing

HUAWEI TECHNOLOGIES CO., LTD. Page 2Huawei Confidential

CONTENIDO

?? FibraFibra ÓÓpticaptica

?? ParParáámetrosmetros queque afectanafectan la la seseññalal óópticaptica

?? Principios de WDMPrincipios de WDM

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¿¿QUQUÉÉ ES LA FIBRA

ES LA FIBRA ÓÓPTICA?PTICA?

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Elementos de una fibra óptica

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Causas de pérdidas ópticas

Pérdidas de Scatteringdebido a no uniformidad en la estructura

Pérdidas por absorción

Reflexión de Fressnel

Pérdidas debido a acoplamiento con dispositivo emisor de luz

Presión lateral externa

Pérdidas por microcurvaturas Pérdidas por

radiación causadas por curvaturas

Pérdidas por splicing

Pérdidas debido a acoplamiento con dispositivo receptor de luz

Reflexión de Fressnel

Pérdidas debido a ScatteringRayleigh

..

...

...

....

...

...

...

.

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1ª ventana

Absorción producida por el ión hidroxilo, OH-

(‘Pico de agua’)

Luz visible Longitud de onda, λ (nm)

Ate

nu

ació

n (

dB

/Km

)

2,5

2,0

1,0

1,5

0,5

700 1000900800 1400130012001100 170016001500

Luz infrarroja

Atenuación de la fibra óptica

0

LáserCD-ROM

3,0

Fibra multimodo

Fibra monomodo

Pérdida debida a la dispersión intrínseca

2ª v Banda O

(Original)

3ª v Banda C (Conventional)

4ª v Banda L (Long)

Banda E

(Extended)

Banda S (Short)

HUAWEI TECHNOLOGIES CO., LTD. Page 7Huawei Confidential

Parámetros que afectan la señal en los sistemas WDM

l Chromatic Dispersion

l Polarization Mode Dispersion- PMD

l Nonlinear Effects in Fiber

l Kerr Effect

l Four-wave Mixing

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www.huawei.com

Huawei Confidential

Principios del DWDM

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2007

Evolution of transport network

Transmission technologies

1965 1998 2005

PtP WDM Static OADM Ring Optical SwitchingCopper Optical fiber

Centralized Management

Distributed Dynamic Control Plane

Management & Control Plane

SDH OTNPDH

20XX1984

Transport Hierarchy

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What's WDM?

Free Way

Gas Station

Patrol Car

lWDM (Wavelength Division Multiplexing, multiplexación por división en longitudes de onda) consiste en enviar varias señales a diferentes longitudes de onda (diferentes λ) por una misma fibra (luz de varios ‘colores’)

HUAWEI TECHNOLOGIES CO., LTD. Page 11Huawei Confidential

WDM Concept

λ1

λ2?

λ1 λ2 λn

λn

SDH signal

IP package

ATM cells

l Different signals with specific wavelength are multiplexed into a

fiber for transmission.

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l The overall structure of the WDM system of N-path wavelength:› Optical Transponder Unit (OTU)› Optical Multiplexer Unit / Optical De-multiplexer Unit (OMU/ODU) › Optical Amplifier (OA)› Supervisory Channel (OSC/ESC)

WDM System Structure

OTU

OTU

OTU

OM/OA

OA/OD

OTU

OTU

OTU

OSC OSCOSC

OLA

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O/ERegeneration

Reshape

Retiming

Input

G.957 G.692

Output

3R

Optical Transponder Unit - OTU

E/O

ALSFEC (Optional)

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Application of OA

Booster amplifier Line Amplifier Pre-amplifier

M40

OTU

OTU

M40

M40

OTU

OTU

M40

MUX

DMUX

OA OA OA

EDFA

RFA Raman Fiber Amplifier

Erbium Doped Fiber Amplifier

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Longitudes de onda Banda C y Banda L

1529.55nm196.00THz

1560.61nm192.10THz

1529.16nm196.05THz

1560.20nm192.15THz

1570.42nm190.90THz

1603.17nm187.00THz

1570.82nm190.85THz

1603.57nm186.95THz

C-EVEN: 192.10THz-196.00THz(1529.55nm-1560.61nm)C-ODD: 192.15THz-196.05THz(1529.16nm-1560.20nm)L-EVEN: 187.00THz-190.90THz(1570.42nm-1603.17nm)L-ODD: 186.95THz-190.85THz(1570.82nm-1603.57nm)

C-band

L-band

l Banda C+ Banda L (160 canales)

l Banda C:192.1-196.0THz & 192.15-196.05THz, espaciamiento 100GHz.

l Banda L:187.0-190.9THz & 186.95-190.85THz, espaciamiento100GHz.

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OTM

OTM

1.OTM

OADM2.OADM

3.OLA

4.REG REG

REG

Clases de Elementos de Red WDM

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WDM Site Type and Networking

l Site Type :OTM, OADM(FOADM/ROADM) OLA,REG,OEQ

l Networking Topology : P2P, Chain, Ring, Mesh.

OADMOADMOADM

OADM OADM

OADM OADM

OTM OLA

80.0 km

FOADM

80.0 km

ROADM

100.0 km

OTM

200.0 km

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ROADM

Wave Blocker PLC WSS

ROADM-Reconfigurable optical add/drop multiplexernDynamic wavelength managementnDynamic power control and remote monitoringnAdd services quickly

Any node, any port, any wavelength

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Dynamic optical add/drop modules

ROADM is the foundation of an automated photonic network

λ1λ2λ3

λ4

ROADM is used to drop any wavelengths at any node.

ROADMλ1

λ2λ3

λ4

MROADM is used to interconnect rings or mesh nodes.

Multi-degree ROADM/WXC

› Any wavelength accessible in any node,

› No banding

› Any node to any node connection without re-design

› Integrated per channel equalization and monitoring

› Reduced regeneration using optical bypass

› Optical bypass and automated routing of wavelengths between nodes

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OTNnTransparent transmission of client signalsnExcellent OAM nLarge-capacity groomingnProtection

OPSn

OTUk Optical Channel (OCh)

Optical Channel Carrier (OCC)OCC OCC OCC

Client

ODUk FECOH OCh Transport Unit (OTUk)

OPUkOH OCh Data Unit (ODUk)

ClientOH OCh Payload Unit (OPUk)

Wra

pper

Ass

ocia

ted

over

head

ODUk FECOH OCh Transport Unit (OTUk)

OPUkOH OCh Data Unit (ODUk)

ClientOH OCh Payload Unit (OPUk)

Wra

pper

Ass

ocia

ted

over

head

OPS0

Optical Physical Section

OTM Overhead Signal

Optical Supervisory Channel

OTM Overhead Signal

Optical Supervisory ChannelOSCOOS

OSC

OH

OH

OH

Non

-ass

ocia

ted

ove

rhea

d

OSCOOS

OSC

OH

OH

OH

Non

-ass

ocia

ted

ove

rhea

d

OMSn

OTSn

Optical Multiplex Section

Optical Transmission Section

OTM-nr.m: n? ? , ? OSC OTM-0.m

OTM-n.m: n? ? , OSC

OTN-Optical Transport NetworkOTN is composed of a set of Optical Network Elements connected by optical fibre links, able to provide functionality of transport, multiplexing, routing, management, supervision and survivability of optical channels carrying client signals.

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The G709 defines Structures & mapping

3825

4080

OTUkOH

1 7 8 14 15 16 17 3824

1

2

3

4

OPU k Payload

OPU

kO

H

ODUk OH

Client Signalmapped in

OPUk PayloadOTUkFEC

n OTU is the highest electrical multiplexing level and includes a Forward Error Correction function. n ODU carriers an Optical Channel Payload Unit (OPU). n The client signals are mapped into the OPU, which is not processed at intermediate sites of OTN

The G709 Recommendation defines the interfaces of OTN :ü Overhead in support of multiwavelength optical networksü Frame structuresü Bit ratesü Formats for mapping client signals

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Tunable TranspondersTunable Transponders

You need You need 4040 kinds of spare part.kinds of spare part.

You only need You only need 1 1 kind of spare part.kind of spare part.

??11

??4040

??22??11

??4040

??22

??11

??3232

??22??nnTunable

OTU

u Support dynamic wavelength adjustment covering the whole C band

with 50GHz channel spacing (80 wavelength tunable range).

u Support wavelength configuration and information inquiring by

software.

u Less inventory, and less Opex.

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Automatic power equalization for all channelsSystemAPE

Optical Spectrum Analyzer: Monitor the spectrum parameters. Provide on-line monitoring for all the service channels

SystemOSA

Monitor the parameters of the fiber and detect the break pointFiberOTDR

Automatic lock the amplifier gain and insure the system performance during the adding or dropping channels

SystemAGC

Fiber

Fault point Function

Automatic accommodate the attenuation change of the fiberALC

Operation, Administration and Maintenance: Operation, Administration and Maintenance: 3A + OTDR + OSA3A + OTDR + OSA

?Add/drop

?Add/drop

Attenuation change

Attenuation change

Varied Gain/ attenuation for

each ?

Varied Gain/ attenuation for

each ?

How to solve these problems?

OTUOTU

Fiber cutFiber cut

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ALC – Automatic Level Control

Attenuated outputAttenuated input

Normal output

OAU OAUOAUOAU

High line losses

OAU OAUOAUOAU

High line losses

Normal inputAttenuated input

Normal output

Without ALC Function

With ALC Function

Adjust the Power lever automatically considering followings:1) Lambda add/drop2) Fiber getting older

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ØØ OSNCP (1+1 OTU)OSNCP (1+1 OTU)for endfor end--toto--end end protectionprotection

ØØ OMSP (1+1 OLP)OMSP (1+1 OLP)for line protectionfor line protection

ØØ 1:8 1:8 OChPOChPfor transponder for transponder protection. protection.

Protection Against Failures in System Protection Against Failures in System

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Optical Protection( ?)Optical ProtectionOptical Protection(( ??))

• 1:8 End to end wavelength protection.• Substantial network wavelength resource saving.

IndustryIndustry--Unique Transponder Units ProtectionUnique Transponder Units Protection

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llDualDual--feed Selectivefeed Selective--ReceiveReceive

llLocal decision, Fast switch.Local decision, Fast switch.

llProcessing and switching in OLP board.Processing and switching in OLP board.

llProtection against the fiber cable routeProtection against the fiber cable route’’s failure .s failure .

Optical Protection( ?)Optical ProtectionOptical Protection(( ??))

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llDualDual--feed Selectivefeed Selective--ReceiveReceive

llLocal decision, Fast switch(<50 ms).Local decision, Fast switch(<50 ms).

ll1+1 transponder unit protection for certain important traffic is1+1 transponder unit protection for certain important traffic is also available.also available.

llProcessing and switching in received transponder units.Processing and switching in received transponder units.

1+1 OTU Protection

Optical Protection( ? )Optical ProtectionOptical Protection(( ?? ))

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Ventajas del DWDMVentajas del DWDM

l Transparencia

l Transmisión de largo alcance

l Alta Capacidad

l Utiliza las fibras ópticas existentes

l Alta relación desempeño/costo

l Confiabilidad

l Facilidad de actualización

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DWDM Backbone SolutionsHuawei OptiX

Optical Networking, Int’l Marketing Dept.

Huawei Technologies Co., Ltd.

2009? 3? 7? ? ? ?

?? National Backbone SolutionNational Backbone Solution

?? Intercity Backbone SolutionIntercity Backbone Solution

?? Intelligent Backbone SolutionIntelligent Backbone Solution

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iManager T2000/T2100

Where does the WDM work in optical network?

Unified NetworkManagement Solution

OSN3500/2500

OptiX BWS1600G

OptiX 10G

OSN7500/3500OptiX Metro3100

OptiX 3800/6040

OptiX Metro1000

160 × 10G32×10G

32?SDH/ATM/IP

OptiX 6800/6100

OptiX OSN9500 OptiX BWS1600G

LongLong--Haul Backbone LayerHaul Backbone Layer

MAN Core LayerMAN Core Layer

Metro Access LayerMetro Access Layer

10G/2.5G

Metro Access LayerMetro Access LayerOSN2500/1500

HUAWEI TECHNOLOGIES CO., LTD. Page 32Huawei Confidential

LH DWDM

OptiX OSN 9500

Metro 1000

Metro 6040

Metro 500

OSN 3500

Metro 6100OptiX

BWS 1600G/400G

WDMFamily

IntelligentNG SDH

Family

CPEFamily

Metro WDM

OSN 2500 OSN 1500B

Metro 100OSN1500A

OSN7500

iManager T2000/T2100 NG WDM

OSN 6800 OSN 3800 OSN 900

Metro 1050

MWFamily RTN620 RTN610

Complete Optical Portfolio - OptiX

HUAWEI TECHNOLOGIES CO., LTD. Page 33Huawei Confidential

FF Trends of the Backbone Transport NetworkTrends of the Backbone Transport Network

FF National/Intercity DWDM Backbone SolutionNational/Intercity DWDM Backbone Solution

FF Intelligent Backbone SolutionIntelligent Backbone Solution

FF Applications Applications

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The features of OptiX BWS 1600GThe features of OptiX BWS 1600G

• Ultra Capacity

• Ultra long haul transmission,

• Modular on-line upgrade: system upgrade is based on

the multiple of 400G module

• NMS supports the End-to-End wavelength management;

• Support one fiber bi-direction and two fiber bi-direction

transmission.

HUAWEI TECHNOLOGIES CO., LTD. Page 35Huawei Confidential

OptiXOptiX BWS 1600G: BWS 1600G: A Unified Platform for BackbonesA Unified Platform for Backbones

OptiXOptiX BWS1600GBWS1600G

617160λ@10G

3980λ@10G

2540λ@10G

RacksSubracksChannels

High integrationHigh integration

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OTU

100GHZ spacing

40chs

Mux

OTU

OTU

25GHZ spacing

160chs

40chs

80chs

Mux

40chs

Mux

OTU

50GHZ spacing

40chs

80chs

Ø Highest density: 25GHz spacing 160λ @ 10G in C band with SuperDRZ

Ø1600km for 160×10G huge capacity

Ø Modular design, smooth expansion: 40à80à160chs

Ø Low initial investment, pay as grow

High Dense C-Band DWDM Solution

HUAWEI TECHNOLOGIES CO., LTD. Page 37Huawei Confidential

Extended C band solution

Extended C band 192chs

196.05THz 192.125THz

C band 160chs

192.05THz

Extended 32chs

191.275THz

ITL

OTU

ITL

ITL

OTU

OTU

OTU

100GHZ spacing

50GHZ spacing

25GHZ spacing

192chs

48chs

48chs

48chs

48chs

96chs

96chs

Provide an excellent solution with low initial

investment and up to 20% extension capacity in

extended C band40×10G system smoothness upgrade to 48×10G

system

80×10G system smoothness upgrade to 96×10G system

160×10G system smoothness upgrade to 192×10G

system

Support mixed C band and extended C band solutions

HUAWEI TECHNOLOGIES CO., LTD. Page 38Huawei Confidential

OptiX BWS 1600G System Overview

Network elementNetwork element• Optical Terminal Multiplexer• Optical Line Amplifier• Optical Add/Drop Multiplexer

Network function unitNetwork function unit• Optical Transponder Unit• Optical amplifier unit• MUX/DEMUX/OADM unit• Control unit• Optical supervisor unit• Maintenance unit

•Topology:Liner, chain, ring

•Protection1+ 1 Line/OTU protection1 : 8 OTU protection1+ 1 for timing unit

Topology/protectionTopology/protection

OLAOLA OLA

Simple unified network platform from common distance to ultra loSimple unified network platform from common distance to ultra longng--haul.haul.MUX/

DeMUXMUX

DeMUXOAOA

OTUOTU