© Ciena Confidential and Proprietary Nortel Confidential Information

To infinity and beyond100Gbps Long haul optical transmission

and beyond

Rod WilsonExternal ResearchOffice of the CTO

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Any Wavelength AnywhereL H Core

Any wavelength to any destination

10 40 100 Gb/s

Ethernet Connections

CPL

GMPLS Control

Agile Optical

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Chromatic Dispersion

Wavelength [nm]

1000 1300 17001500

Frequency [THz]

230 200 170300

Rel

ativ

e G

roup

del

ay [p

s/km

]

0

3,000

psnm

Dis

pers

ion

[ps/

nm/k

m]

0

+20

physics.utoledo.edu

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Effect of Dispersion

Transmitted Signal Signal after Dispersion

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Polarization Mode Dispersion (PMD)

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Noise

http://www.eborg3.com

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Solutions

© Ciena Proprietary 8

8

QPSK(2 bits/symbol)

Vertical Polarization

Horizontal Polarization

Dual Polarization

Dual Polarization(2 symbol paths)

Building BlockDual Polarization QPSK at 46 Gbits/s

Commercially available since May 2008

(0,0)(0,1)

(1,0) (1,1)

Q

I

=

= 46 Gbit/s@11.5 Gbaud+

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Tx Rx

Tx Rx

1 span

1 span

DCF DCF DCF DCF

Conventional 10 or 40 Gb/s Optical Link with DCFs

Ciena ‘s 2002 breakthrough 10 Gb/s Optical Link with eDCO

Dispersion Compensation and Optical Systems

Tx Rx

1 span

Ciena shipping100G and 40G Optical Link with eDCO

Fiber Effects: CD, PMD

2-PolQPSKSignal

DSP

9

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Coherent Receiver: CMOS ASIC

20 M Gates

12 T Ops per second

Four 20 Gs/s 6 bit ADC

21 Watts

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100 Gb/s Modem

• Two subcarriers 20 GHz apart• 50 GHz channel spacing provides 9 Tb/s in C-band• 1000 km reach, +/- 30,000 ps/nm, 20 ps mean DGD• 12 Wavelength Selective Switch (WSS) ROADMs

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Optical Spectrum

10G 100G 40G

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100 Gb/s Real Time Data> 1000 km of NDSF fiber

> 10G, 40G, and 100G at 50 GHz spacing

> JDS PMD emulator

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What is Next?

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200 Gb/s, 400 Gb/s, 1000 Gb/s

Lower cost per bitMore bits per fiberLarger packet streams

(Advanced technology research speculations and not product delivery commitments.)

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Lightpath Bit Rate

The bit rate is the product of three dimensions

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More Symbols per Second

Faster A/D11, 28, 56, … GBaud

More gates of DSPCMOS riding Moore’s Law

Ramp generator

EncoderLim. amplifiers

Comparatorssub-ADC

T/H array

Clock gen.

dem

uxes

dem

uxes

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More Bits per Symbol

-2 -1 0 1 2-2.5

-2

-1.5

-1

-0.5

0

0.5

1

1.5

2

2.5

In-Phase

Qua

drat

ure

DP 16-QAM

4 bits x 2 Pol=8 bits per Baud

x 28.5 Gbaud= 228 Gb/s

I

Q

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Spectral Efficiency is ultimately determined by OSNR

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-4 -2 0 2 4

-4

-2

0

2

4

Real

Imag

inar

y

X-Pol. Out

-4 -2 0 2 4

-4

-2

0

2

4

Real

Imag

inar

y

Y-Pol. Out

-4 -2 0 2 4

-4

-2

0

2

4

Real

Imag

inar

y

X-Pol. Out

-4 -2 0 2 4

-4

-2

0

2

4

Real

Imag

inar

y

Y-Pol. Out

Back-to-Back 5 x 80 km = 400 km NDSF

560 Gb/s

[Charles Laperle Oct 2009] BER = 0.019

•Dual Carrier DP-16-QAM•100 GHz WSS

•35 Gbaud Nyquist Generation •SiGe BiCMOS DACs•215-1 pattern

193.3 193.4 193.5 193.6 193.7 193.8 193.9 194 194.1-30

-25

-20

-15

-10

-5

0

5

Frequency [THz]

Rela

tive

Ampl

itude

[dB]

560

Gb/

s

100

GbE

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End of Fixed Channelization

Static 50 GHz grid will not support 1000 Gb/sAt 5 b/s/Hz need 200 GHz of spectrum

Need Flexible WDM Exploit coherent channel selection

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Capacity Trend

Year of Product Introduction

Tb/s

in C

Ban

d

Bits

/s p

er H

z

1995 2000 2005 2010 Future…0

1

2

3

4

0

5

10

15

20

● 10G10.7 Gb/s @ 50 GHz

●

● 46 Gb/s @ 50 GHz

112 Gb/s @ 50 GHz ●

224 Gb/s @ 50 GHz ●

448 Gb/s @ 80 GHz ●5

251000 Gb/s @ 170 GHz ●6

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Electrically Tunable: Optical agility

WSS

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Ciena 100G Leadership

3. Maximum System Capacity. Ciena OME 6500: 8.8 Tbs (88 chs of 100G)

4. System Reach and Experience: 1,300 Km in deployed network in 2009 2,000 Km in test environment

5. System stability, performance, availability:Ciena solution based off existing, mature, 10G component technology 6. Future proof design: Coherent technology with full electronic compensation

Allows 10G; 40G and 100G waves to be used in the same system

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Ciena 100G Leadership

Time to market. Production ready 100G (50Ghz) available NOW Ciena 100G solutions deployed in production networks since December 2009

First appearance SC07 in Reno

Ciena 100G Client interfaces: Interop with router vendor already completed, in advance of final industry specs … Initial availability in Q4 ’10 …. GA in Q1 ’11.

Performance. Proven deployment in mission critical networks Successful deployment > 1,300km over poor fiber conditions

Portion of route deployed as alien wave

Low Latency, high reliability Integrated management with OME 6500 and CoreStream

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University research investments

•Engineering of polarization multiplexed systems•Advanced Signal Processing for Optical systems•Colourless Optical Networks•Agile Photonic Systems•Advanced Silicon circuit design•Optical transport techniques for 160+Gbps