collings-flexgrid-technologies ecoc 2012 jdsu final-01

8/11/2019 Collings-FlexGrid-Technologies ECOC 2012 JDSU Final-01

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This communication contains forward looking product development plans based on our current expectations. The actual products and/or product functionality and timing of

the product and/or product functionality releases could change materially. Production released products will be priced separately.

Brandon Collings

CTO, Optical Communications ProductsJDSU

FlexGrid Technologies

ECOC 2012, WS08 Beyond 100G - Technology Options

September 16th, 2012

TrueFlex Portfolio


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2

Outline

Overview of Flexible Spectrum

Network Level Requirements for Flexible Spectrum

Photonic Components For Flexible Spectrum Networks Wavelength management (WSS) Multiplexers and transmitters

Demultiplexers and receivers

Optical amplification

Channel monitoring

Tunable lasers

Multi-carrier transceivers

What is Not Impacted?

Dispersion compensation Fiber


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Flexible Spectrum Overview

Super Transport Channel

Densely Packed Independent Carriers

Super Channel

400Gb/s in 150GHz

Minimum Bandwidth

100Gb/s in 37.5GHz

50GHz ITU-defined Channel Grid100Gb/s in 50GHz

Fixed Frequency Grid

Flexible Spectrum

Standardized, periodic grid

~34GHz usable per channel

~16GHz filter guard band

Channel widths and locations become flexible

Nyquist pack carriers better utilize amplified spectrum


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TxTxTxTx

AWG

T

x

Power

Splitter

RxRxRxRx

AWG

Rx

OCM

WSS

WEST

Todays Fixed Grid Reconfigurable Mesh Node Architecture

Tx

Tx

Tx

Tx

AWG

T

x

WSS

Power

Splitter

Rx

Rx

Rx

Rx

AWG

Rx

TxTxTxTx

AWG

Tx

WSSPowerSplitterRx

RxRxRx

AWG

Rx

NORTH

EAST

OCM

OCM


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TxTxTxTx

AWG

Tx

Power

Splitter

RxRxRxRx

AWG

Rx

O

CM

WSS

Network Level Requirements to Use Flexible Spectrum

Flexible Spectrum Wavelength Management

Wavelength

SelectableSw

itch

Wavelength

Selectable

Switch

50GHz

Flex Spectrum

WSSs support ing flexiblespectrum wavelength routing

-including intrachannel power equalization

WSSs support ing flexiblespectrum wavelength routing

-including intrachannel power equalization


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TxTxTxTx

AWG

Tx

Power

Splitter

RxRxRxRx

AWG

Rx

O

CM

WSS


Flexible Spectrum Multiplexing/Demultiplexing

Flexible SpectrumColorless Mux & Demux

- Filtering too expensive- Use power couplers/splitters

- Requires coherent Rx

Flexible SpectrumColorless Mux & Demux

- Filtering too expensive- Use power couplers/splitters

- Requires coherent Rx

RxRxRxRx

50GHz AWG

Rx

TxTxTxTx

50GHz AWG

Tx

RxRxRxRxRxRxRx

TxTxTxTxTxTxTx

ColorlessFlex Spectrum

96 x 50 GHz 96 x 50 GHz

N x Flex Channels N x Flex Channels

Fixed Grid


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TxTxTxTx

AWG

Tx

Power

Splitter

RxRxRxRx

AWG

Rx

O

CM

WSS


Optical Channel Monitoring

50GHz Grid

Flexible Spectrum

Scanning High Resolut ion

Optical Channel Monitor- Unpredictable channel locations

and widths

- High resolution to resolve

intrachannel features and carriers

Scanning High Resolut ion

Optical Channel Monitor- Unpredictable channel locationsand widths

- High resolution to resolve

intrachannel features and carriers


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TxTxTxTx

AWG

Tx

Power

Splitter

RxRxRxRx

AWG

Rx

O

CM

WSS


Quasi-Continuous Wavelength Tuning

Quasi-Continuous

Wavelength Tuning- Carrier locations dependent

upon baud rate, needed

performance, adjacent channels

- Impractical to identify periodicity

Quasi-Continuous

Wavelength Tuning- Carrier locations dependentupon baud rate, needed

performance, adjacent channels

- Impractical to identify periodicity

Flexible Spectrum

50GHz Grid


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TxTxTxTx

AWG

Tx

Power

Splitter

RxRxRxRx

AWG

Rx

O

CM

WSS


Multi-Carrier Transceivers

Cost Effective Super Channels

- Multiple carriers integrated to reduce cost per carrier

- Increase density and simplify optical interconnections

Cost Effective Super Channels

- Multiple carriers integrated to reduce cost per carrier

- Increase density and simplify optical interconnections

Tx A

Tx B

Rx A

Rx B

Tx A

Tx B

Rx A

Rx B


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TxTxTxTx

AWG

Tx

Power

Splitter

RxRxRxRx

AWG

Rx

O

CM

WSS


Higher Power Optical Powers

Line Optical Power

50GHz Grid

96 wavelengths

Flexible Spectrum

~130 wavelength carriers

0 dBm/ 20dBm 0 dBm/ 21dBm

1dB more OA power

Mux/Demux Power

Coherent Rx

min -14 dBm/carrier min -14dBm/carrier

min -2dBm total(4 carriers)

6dB loss

min -14dBm total

(1 carrier)

Coherent Rx

1dBm more Launch Power1dBm more Launch Power

12dB more Power12dB more Power

SingleCh

4-carrie

r

SuperC

h

Coherent RxCoherent Rx

Coherent Rx

splitter


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Other Emerging Network Requirements

Higher DensityModulation

16QAM

Higher OSNR need

Less interference (higher WSS

isolation)

Colorless

DirectionlessContentionless

T

R

T

R

T

R

T

R

T

R

New Multicast switch mux and

demux structures

Higher line WSS port count for CDC

module scalability

$Cheaper

Lower PowerHigher Density

Lower cost

Consume less power

Smaller size


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TxTxTxTx

AWG

Tx

Power

Sp

litter

RxRxRxRx

AWG

Rx

OCM

WSS

WEST

Todays Fixed Grid Reconfigurable Mesh Node Architecture

Tx

Tx

Tx

Tx

AWG

Tx

WSS

Pow

er

Splitter

Rx

Rx

Rx

Rx

AWG

Rx

TxTxTxTx

AWG

Tx

WSSPowerSplitterRx

RxRxRx

AWG

Rx

NORTH

EAST

OCM

OCM

Higher Isolation for 16QAMHigher Isolation for 16QAM More WSS Ports for Modular Add/DropMore WSS Ports for Modular Add/Drop

Lower Node Loss for Higher OSNRLower Node Loss for Higher OSNRWavelength Filtering to/from Add/DropWavelength Filtering to/from Add/Drop

Flexible SpectrumFlexible SpectrumBut we need


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The Right Foundation: Route and Select WSS Architecture

Industry Convergence1x20WSS

1x20WSS

Splitter

Splitter

CDCCDC CDCCDC CDCCDC

1x20WSS

1x20WSS

1x20W

SS

1x2

0WSS

CDCCDC CDCCDC CDCCDC

Broadcast and Select Route and Select

Network Requirement WSS/Node RequirementBroadcast &

SelectRoute &Select

Scalable: 8 degrees + CD /CDC High Port Count (~20)

WSS devicesimultaneously

meeting all theserequirements is

not currently

practical

Yes PracticalDe

vice

Decreased interference for 16QAM Higher Node Isolation (>45dB) Yes

Flexible Spectrum Flexible Spectrum (


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Flexible Spectrum Channel Demultiplexing

1x20

WSS

1x

20

WSS

Degree

power splitter

Rx Rx

AWG

Fixed gridDirect-detect compatible

Rx Flex, ColorlessCoherent Rx required

Flex, CDCCoherent Rx required

8x1 Selection

Switches

1x16 PowerSplitters

Multicast

Switch

Optical Amplifier

Array

Example


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AWG

Flexible Spectrum Channel Mult iplexing

1x20

WSS

1x

20

WSS

Degree

power splitter

Tx TxFixed gridTx Flex, ColorlessSpectral Shaping Required

Flex, CDCSpectral Shaping Required

Example

8x1 Selection

Switches

1x16 Power

Splitters

Multicast

Switch

Optical Amplifier

Array

Spectral Shaping


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Summary

Flexible SpectrumNetworks

Require new architecture approaches

Require new optical components

Appropriate to consider with 16QAM and CDxC

Wavelength Selectable Switch High port count in Route and Select

Demultiplexing Colorless power splitter and coherent detection

Multiplexing Colorless power coupler with transmitter spectral shaping

Channel Monitoring

High resolution, essentially scanning OCM

Lasers Quasi-continuous wavelength tuning

Amplification Raman, higher power and many smaller OAs

Multi-Channel Transceivers Integration for cost-effective superchannels


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For Further Details:

CDC and Gridless ROADM Architectures and Their Enabling Devices

Wednesday Sept. 19th, at 1:25 p.m. in the Market Focus Theatre (Hall 1)

Peter Roorda

JDSU Product and Technology Strategy

collings-flexgrid-technologies ecoc 2012 jdsu final-01

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