Metro High-Speed Product Line Manager

Guylain BarlowJDSU Ottawa, CanadaMay 2013

100G and Beyond -A test and measurement perspective

Agenda

• Client vs Line Interfaces• 100G Client Evolution – 2nd Gen rationale

• New Technology Challenges• Line side Interfaces

• Test challenges - OSNR

© 2012 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 2

• Test challenges - OSNR• 400G and Beyond

100 Gb/s Transmission Model for Client and Line Int erfaces

Dense WDMon 50 GHz ITU Grid

CFP

Client Side

OTU 4

100 GE

CFP

Line Side

CFP

Client Side

OA

OA

100 Gb/s DP-QPSK

CFP

CFP


CFP 100 Gb/s DP-QPSK (coherent detection, LH)

4 x 25 Gb/s NRZ / Duobinary (direct detection, metro)

Coarse WDM

4.5 nm

1295.56 1300.05 1304.58 1309.14 nm

FixedModules

Line Cards

Most common transport client: 100GBASE-LR4

4 λ @ 25 Gb/s NRZ

Future: CFP

World-Wide Market for 100 Gb/s Transmission Equipme nt

300,000

400,000

500,000

600,000N

umbe

r of U

nits

100G Optical Transceiver Units by Form Factor

100G NEM-developed100GBase-SR10100GBase-LR4100G DWDM


0

100,000

200,000

300,000

CY07CY08CY09CY10CY11CY12CY13CY14CY15CY16

Num

ber o

f Uni

ts

Year

Source: Infonetics, April 2012

100G Optics

100G

SR10 MMFCXP

LR4 SMFCFP

100GEData CentreEnterprise

100GE& OTU4

Line SideOIF MSA

OIF 5 x 7 module

850 nm

10x10 MSA - 10λ(SMF) CFP

Not an IEEE standard1550 nm


850 nm

CFP22013 Beta

CFP42014/15

CFP2 to replace CFP over time- Same photonic interface (LR4)- Electrical bus moving from 10G to 25G

CFP4 high density & lower power - Datacom

Line-side CFPASIC inside

standard1550 nm

Reduce volume & cost

QSFP28TBD

1310 nm

∆λ = 8 nm

∆λ = 4.5 nm

100G SMF Evolution

� First Gen CFP is bulky, expensive and power hungry – based on 10G electric interface

� Next Gen CFP2/4 is fully based on 25G technology• CFP2 less than 50% of CFP footprint and power to support Terabit line cards• CFP2/4 are simpler than CFP (no gearbox)• Such cost reductions will enable an acceleration in 100G deployments

Current Focus/ Challenge is integration &


SM

F S

pace

2011 2012 2013 2014 2015

100G LR4/10CFP

100G LR4CFP2

100G LR43rd Gen

Current Focus/challenge is 25G I/O

Challenge is integration & power density

100G Client Form Factors – Driven by Density

Current state of the art400 Gb = ~56W

~ 2013/14800 Gb = ~64W


~ 20153.2Tb = ~160W

~ 2014/151.6 Tb = ~80W

Power density & cooling will remain an key issuePower is for pluggable optics only, total power (line card) will be considerably higher

CFP Detailed Block Diagram – Complexity Revealed!

Photonic integration will allow higher density/lower power TOSA/ROSA

10 x 10G I/O


Gearbox moving to CMOS in 2013⇒ Lower power/cost⇒ Smaller form factor

However even with enhanced CFP technology, greater size & power reduction required

10 x 10G I/O LR4 Optical Interface4λ on one SMF

CFP2 – Simplicity Drives Down Cost & Power


� Tighter photonic integration� Removal of gearbox reduces electronics complexity� Challenges in thermal density need to be met for future

Direct 1:1 mapping of electrical & optical lanes

� 10G is the current high-speed I/O for CFP� 25G based I/O will become the de-facto I/O speed for many

future technologies • 100G Ethernet (4 x 25G)• OTU4 • Infiniband • 32G Fibre Channel

Electrical I/O Speeds


• 32G Fibre Channel

� 25G I/O: • Can be found on some ASICs, CDRs and FPGAs today• Could support 1st generation 400G

- 16 x 25G is a wide bus but being considered

Optics Test Challenges at 100G

� 2nd generation 100G will use 25/28G I/O• Very novel technology (1st generation)• Physical layer performance reliability will be a key challenge

� Users need test solutions which give true insight into the issues of the physical layer.• Denser ICs need framed traffic (Ethernet, OTN etc) as buses are wide


• Physical layer applications MUST be protocol aware• Crosstalk, skew, frame loss, jitter, synchronization will need

troubleshooting� More test intelligence needed to troubleshoot• Test innovation with physical layer &

protocol integration

Line Side InterfacesLine Side Interfaces

100G Line Side (Modulated) Module Evolution

CFP (32W)145mm x 76mmASIC inside (~20W)

OIF Transponder5” x 7”75W

Pric

e

© 2012 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 1313Smaller size, lower power dissipation

CFP2 (12W)106mm x 40mm ASIC outside

Pric

e

100G line side support potential on JDSU ONT Product

2013

Evolution DWDM Modulation Formats – Starting at 40-G b/s

� Optical Duobinary / PSBT (1 bit/symbol)

� NRZ-DPSK (1 bit/symbol)

Q

I

Tren

d

Com

pone

ntIn

tegr

atio

n


� RZ-DQPSK (2 bits/symbol)

� Polarization-Multiplexed QPSK(4 bits/symbol) (DP-QPSK)Coherent receiver with high-speed DSPfor electronic PMD and CD compensation

| Pol

|| Pol

Tren

d

Com

pone

ntIn

tegr

atio

n

Deployment of DWDM SystemsPerf

orm

ance 3rd Gen

RZ-DQPSKDirect Detection

4th GenerationDP-QPSK Coherent Detection

Dual Polarization -QPSK

40G


Perf

orm

ance

1st Gen

Duo-Binary

2nd Gen

NRZ-PDPSK

Direct Detection

Timeline

Partial Differential Phase Shift Keying

Diff. Quad PSK100G

1st GenerationDP-QPSK Coherent Detection

DWDM Fiber Optics Transmission Beyond 100 Gb/s

� 100 Gb/s transmission systems will stay around for a long time� Total fiber transmission capacity in DWDM is hitting a ceiling� 400 Gb/s transmission will complement 100 Gb/s – not replace it� Optical networks to evolve with flexible wavelength channel grid

100

Tota

l Fib

er C

apac

ity [

Tb/s

]

100 Gb/s 1 Tb/s

Total Capacity in C-Band(50 GHz or Flex Grid)


0.1

1

10

1 10 100 1000

Data Rate per Channel [Gb/s]

Tota

l Fib

er C

apac

ity [

Tb/s

]

100 Gb/s

40 Gb/s10 Gb/s

2.5 Gb/s

400 Gb/s

1 Tb/s(50 GHz or Flex Grid)

60%

80%

100%

120%R

elat

ive

Tra

nsm

issi

on R

each

40 Gb/s NRZ DPSK

100 Gb/s DP QPSK

Decreasing Transmission Reach with Increasing Capac ity

On 50-GHz WDM Grid


0%

20%

40%

0 100 200 300 400

Bit Rate [Gb/s]

Rel

ativ

e T

rans

mis

sion

Rea

ch

200 Gb/s DP 16-QAM

400 Gb/s DP256-QAM

-20

-10

Rel

ativ

e O

ptic

al P

ower

[dB

]

100 Gb/s DP-QPSK Signal

DP-QPSK Test Challenge: In-Band OSNR Measurements

Polarization-”Nulling” method does Not Work with Pol.-Mux. Signals• Pol “Nulling” is very effective for 40Gb/s non Pol Mux Signals (like DQPSK)• Use of polarizer does not fully attenuate signal due to pol-muxing

Interpolation method does Not work because of large signal width


-50

-40

-30

-30 -20 -10 0 10 20 30

Rel

ativ

e O

ptic

al P

ower

[dB

]

Relative Optical Frequency [GHz]

ASE Noise

Signal + Noise Signal + Noise

Polarizer

In-Band OSNR Measurements on 100 Gb/s DP QPSK Signa ls

� Intrusive (Out of Service) OSNR Measurements:• Is the currently available method• Requires enabling/disabling of laser (non ROADM system)• Useful only for acceptance tests at time of installation

� No commercial In-Band OSNR universally applicable m ethod so far• All physical parameters are used for DP-QPSK encodi ng

- Frequency, amplitude, phase, and state of polarization


- Frequency, amplitude, phase, and state of polarization- No independent physical parameter available for noise estimation

• Signals may be distorted by large amounts of CD and PMD

� JDSU actively researching a commercial method for I -OSNR

ROADM with OSNR Monitor

DWDM

Transmitters

OSNR Monitor

OSNR Monitor

High-Resolution Spectrum Analysis for Complex Signa ls

JDSU innovates with coherent detection OSA showing spectral details• Spectrum comparison of conventional and high-resolution OSA:

-10

0 10pm resolution OSA

JDSU HR OSA


1556,6 1556,7 1556,8 1556,9 1557,0 1557,1 1557,2

-50

-40

-30

-20

Pow

er (

dB)

Wavelength (nm)

What Comes After 400 Gb/s?

� Total fiber transmission capacityin DWDM is hitting a ceiling

� 1 Tb/s “superchannels” do not increase capacity significantly

� Space-Division Multiplexing (SDM) in Multi -Core / Multi -Mode Fibers

0.1

1

10

100

1 10 100 1000

Data Rate per Channel [Gb/s]

Tota

l Fib

er C

apac

ity [

Tb/s

]

100 Gb/s

400 Gb/s

1 Tb/s


� Space-Division Multiplexing (SDM) in Multi -Core / Multi -Mode Fibers• Multi-core fibers with 7 to 12 independent cores• Specially designed multi-mode fibers with few modes

SumitomoNTT

JDSU – A short 100G Product History

October 2009• First transport-grade 100GE & OTU4 test set. Unique (patented) features include Lambda mapping, dynamic skew & MDIO debug.• Evolved to comprehensive OTN mapping including ODUflex

December 2011• Most compact and comprehensive 100G field


• Most compact and comprehensive 100G field solution• Native support for CFP & QSFP+; 1.5M to 100G testing

September 2012• ONT CFP2 – worlds first 2nd generation 100G solution with CFP2• Revolutionary applications for advanced error analysis

Metro High-Speed Product Line Manager

Technology

Transcript of Metro High-Speed Product Line Manager