Optimization of WDM system architecture using 100G technology
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Optimization of WDM system architecture using 100G technology. Guillaume Crenn, Product Line Manager. Presentation Agenda. 100G Market & Technology overview 100G benefit in WDM networks Potential  issue and Workaround Next step to increase system capacity. 100G Market status.

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Optimization of wdm system architecture using 100g technology

Optimization of WDM system architecture using 100G technology

Guillaume Crenn, Product Line Manager


Presentation agenda

Presentation Agenda

  • 100G Market & Technology overview

  • 100G benefit in WDM networks

  • Potential  issue and Workaround

  • Next step to increase system capacity


Optimization of wdm system architecture using 100g technology

100G Market status


Explosive growth in ethernet ip services traffic

Explosive Growth in Ethernet/IP Services/Traffic

Ethernet Services Revenue

Source: Ovum

CAGR: 2009-2016: 13.2%


Explosive growth in ethernet ip services traffic1

Explosive Growth in Ethernet/IP Services/Traffic

IP Traffic Growing at a much faster rate than Ethernet Services Revenue

Source: Cisco

CAGR: 2010-2015: 32%


Explosive growth in ethernet ip services traffic2

Explosive Growth in Ethernet/IP Services/Traffic

Services at rates greater than 1G growing at an alarming rate

Market is driving demand for higher rate services at a lower cost

Source: Ovum

CAGR: 2008-2016: 35.8% -

10G services Grew > 60% CAGR


How are service providers reacting 1 2

How are Service Providers Reacting? (1/2)

Ethernet Services and IP Traffic Growth Result in Huge Growth in Global Bandwidth Demand


How are service providers reacting 2 2

How are Service Providers Reacting? (2/2)

Source: Ovum

Service Providers are putting in bigger Pipes Today to better utilize expensive fiber infrastructure


Optimization of wdm system architecture using 100g technology

100G technology overview


Optimization of wdm system architecture using 100g technology

100G transmission technology

  • 10G transmission mainly uses NRZ modulation and Direct detection

    • OOK-NRZ (On Off Keying – None Return to Zero) modulation format

  • 40G transmission: different type of modulation used by different vendors

    • No real 40G standardization

    • Direct or coherent detection technology available

  • 100G: Standardization of the line interface

    • This standardization has caused the technology to mature faster than 40G and therefore will result in a higher adoption rate

  • Same technology used by all players on the terrestrial 100G market today

    • DP or PM-QPSK modulation Format and Coherent receiver

    • Optical design similar for all competitors

    • Performance differentiation at DSP level


Optimization of wdm system architecture using 100g technology

100G transmission technology

  • Routers are rapidly moving toward 100G interconnect to accommodate the increase in IP traffic

  • Native 100G client interfaces standardized and available

  • Numerous component vendors have introduced 100G technology to the market in the last 3-6 months causing the economics to improve quickly


100g competition status

Field trial over Long haul routes achieved on operators live networks since 2 to 3 years

Few 100G channels added on live 10G and 40G networks

First network deployment announced beginning of last year (2011 H1)

Few Metro Networks already running at 100G

1rst commercial route for 100G traffic: Paris-Frankfurt

Massive 100G network deployment since 2011 H2 and 2012 H1

Transponders (native 100G client ports) and Muxponder (aggregation of 10G client ports in a 100G line available in all 100G players portfolio

100G Competition Status


Optimization of wdm system architecture using 100g technology

100G benefits in WDM networks


100g network design rules

100G Network design rules

  • Utilizes the same hardware as 10G and 40G (filters, amps, etc.)

    • Compatible with all MUX/DMUXs, ROADMs, OADMs, already installed in your network

    • Works with both 50GHz and 100GHz channel plans

    • Utilizes standard ITU Grid

  • Required OSNR around 14 dB

    • Compatible with the large majority of 10G and 40G installed systems

    • Transmission over 3000 to 4000 kilometers

  • ±50 000 ps/nm of Chromatic dispersion tolerance

    • Much more tolerant than the 10G or 40G optical interfaces

    • 10G tolerance around 2000 ps/nm max

  • PMD tolerance > 30ps (100ps of DGD)

    • Much more tolerant than the 10G or 40G interfaces

    • 10G tolerance around 10 to 12 ps


100g deployment green field

100G deployment: green field

  • Green field deployment: new WDM network based on 100G only

    • High capacity backbone network

      • Capacity per fiber pair increases by a factor 10 compared to 10G design

    • Granularity to lower bit rate client ports using Muxponder

      • Client ports can be 100G, using transponders

      • Client can also be 40G, 10G or lower by using Muxponder

    • Infrastructure Cost reduction on network infrastructure due to dispersion compensation removal


Real life customer scenario

Real Life Customer Scenario

ODC

ODC

ODC

ODC

ODC

3200 Km Network – 38 spans ranging from 66km to 150km

100G does not require dispersion compensation like 10G.

Eliminating Dispersion Compensation Saves 37%

(On commons: chassis, amps, dispersion, management cards)

This can be used to pay for sellable customer services

Deploying with 100G instead of 10G paid for

the first 100G Channel!


Optimization of wdm system architecture using 100g technology

100G deployment: Upgrade and optimization of existing systems

  • Upgrading Existing Systems with Additional 100G capacity

    • 100G FEC allows good performance over existing line systems

    • Same OSNR and power per channel range for existing 10G/40G channels and new additional 100G channels

100G TRP or MXP

100G TRP or MXP

100Gb/s

Additional wavelength

100Gb/s

Additional wavelength

10G/20Gb/s

Additional wavelength

Ekinops PM C1002/C2002


100g option for expanding capacity

100G Option for Expanding Capacity

  • 100G performance: = to or better than most 10G systems

  • 100G Alien waves can use existing 10G design rules with potential bypassing of regens

Extending to Full Route

32 Channel System, 30 Channels Lit

POP-7

POP-1

12.7 km

3.2 dB

109.4 km

23.1 dB

105.1 km

21.4 dB

102km

21.1 dB

48km

10.1 dB

58.6 km

12.3 dB

105.5km

21.5 dB

100.2km

20.4 dB

109.6km

23.9 dB

120.6km

20.6 dB

107.1km

21.5 dB

107.5km

21.3 dB

105.3km

20.6dB

104.5km

20.3dB

100.2km

19.5dB

100.4km

19.8dB

105.4km

20.5dB

94.5km

18.9dB

64.6km

12.8dB

102.8km

20.3dB

98.4km

19.3dB

90.2km

17.7dB

85.3km

17.1dB

Hut-5

Hut-1

Hut-2

Hut-3

Hut-6

Hut-7

Hut-8

Hut-9

Hut-10

Hut-11

Hut-12

Hut-13

Hut-15

Hut-16

Hut-17

Hut-18

Hut-14

(10G ReGen)

POP-2

POP-3

POP-4

ReGen, Add/Drop

POP-5

POP-6

100G Express

9-Spans, 751 km

14-Spans, 1,387 km

Field Trial


100g option for expanding capacity continued

100G Option for Expanding Capacity (Continued)

  • Eliminate the need for equipment upgrades to existing 10G systems

    Avoid:

    • Cost of new filters, amps, DCM, etc.

    • Cost of field tech’s deployment, planning, etc.

    • Downtime, customer satisfaction / SLA issues

  • And with a smaller form factor… Eliminate space & power issues

    • 1 RU: Rack chassis even in very tight spaces

    • 230W (4.8A): Run power cables to existing fuse panels

      • No new power cables to BDP

32 Channel System, 30 Channels Lit

POP-7

POP-1

12.7 km

3.2 dB

109.4 km

23.1 dB

105.1 km

21.4 dB

102km

21.1 dB

48km

10.1 dB

58.6 km

12.3 dB

105.5km

21.5 dB

100.2km

20.4 dB

109.6km

23.9 dB

120.6km

20.6 dB

107.1km

21.5 dB

107.5km

21.3 dB

105.3km

20.6dB

104.5km

20.3dB

100.2km

19.5dB

100.4km

19.8dB

105.4km

20.5dB

94.5km

18.9dB

64.6km

12.8dB

102.8km

20.3dB

98.4km

19.3dB

90.2km

17.7dB

85.3km

17.1dB

Hut-5

Hut-1

Hut-2

Hut-3

Hut-6

Hut-7

Hut-8

Hut-9

Hut-10

Hut-11

Hut-12

Hut-13

Hut-15

Hut-16

Hut-17

Hut-18

Hut-14

(10G ReGen)

POP-2

POP-3

POP-4

ReGen, Add/Drop

POP-5

POP-6

100G Express

14-Spans, 1,387 km

9-Spans, 751 km


Optimization of wdm system architecture using 100g technology

100G deployment: Upgrade and optimization of existing systems

  • No need to deploy a new WDM system if you are missing capacity

  • Even If 10G is your primary service rate, you can get 10x 10G into the same spectrum as 1X 10G previously

10 X 10G channels

1 X 100G channel

100G Muxponder

10G

9 free ports available for additional deployment

10G

10G

10G

10G

10G

10G

10 X 10G channels

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G

10G


Optimization of wdm system architecture using 100g technology

100G Issues and workaround


100g potential issue

100G potential issue

  • Issue with Most 100G solutions

    • Only available in large form factors not suitable for applications with limited space

      • Footprint can also be an issue in co-location environments

        But: Some low footprint solution are available for limited space

    • Cost: 100G Muxponder designed for Long haul today remain more expensive the 10 X 10G TRP

      But:

      a)The cost savings on Infrastructure deployment can reduce the Price Gap for green field deployment

      b) 100G standardization with all component suppliers working on the same technology, will lead to efficient price reduction on 100G market

Ekinops Proprietary information


Optimization of wdm system architecture using 100g technology

Next steps for WDM systems


Optical evolution flex coherent

Optical EvolutionFlex Coherent

  • Flex Coherent (100G)

    • Modulation format evolution for distance versus capacity optimization

      • DP BPSK, DP QPSK, DP 8QAM, DP 16QAM

    • Trade-off of Spectral efficiency versus OSNR


100g optical evolution wave bounding superchannel

100G Optical EvolutionWave Bounding /SuperChannel

  • 400Gb/s -1Tb/s

    • 100G use 50Gb/s DSP and 25GHz Optical receiver (available today)

    • 1000G (1T) will require 500Gb/s DSP and 250GHz optical receiver

      • Such type of DSP will not be available before the next decade

  • Wavebonding: the information is distributed over several subcarriers spaced as closely to form a SuperChannel (example 10 x 100Gb/s @50GHz :500GHz)

10 x 100G = 1Tb/s @ 500GHz


100g optical evolution flex grid

100G Optical Evolution Flex Grid

  • Spectrum efficiency optimization

    • No need to keep 50GHz between sub carriers 37,5GHz is enough for DP-DPSK

10 x 100G = 1Tb/s @ 500GHz

10 x 100G = 1Tb/s @ 375GHz


100g optical evolution flex grid1

100G Optical Evolution Flex Grid

  • Each Sub-Carrier transporting a lower Bit Rate, compatible with current 100G components

  • Flex-Spectrum DWDM filtering is adopted enabling Multi-carrier add and drop.

    • Current ROADMs are already compatible with flexgrid

    • Capacity to Add & drop full or sub-part of each super channel

10 x 100G = 1Tb/s @ 375GHz

SuperChannel #3

10 x 100G = 1Tb/s @ 375GHz

SuperChannel #1

10 x 100G = 1Tb/s @ 375GHz

SuperChannel #2


100g optical evolution optical amplifier schemes

100G Optical Evolution Optical amplifier schemes

  • Optimized Hybrid Amplifier (Erbium/Raman)

    • For 100G /400G/1T transport.

    • Optimization of the Bandwidth,

    • Optimization of the noise flatness

    • Optimization of the noise figure at nominal point


Optimization of wdm system architecture using 100g technology

Thank You


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