Light Reading
A new chip will start Ciena's 400G generation, but really it's about doing more with 100G

Ciena Pushes Ahead to 400G

Craig Matsumoto
News Analysis
Craig Matsumoto
3/1/2012
50%
50%

Ciena Corp. (NYSE: CIEN) is announcing its next 100Gbit/s optical processor on Thursday, readying itself for the 400Gbit/s generation.

The WaveLogic 3 chip promises to extend 100Gbit/s reach to 2,500 km without regeneration, through technologies including soft forward error correction (FEC).

The chip also uses a digital signal processor (DSP) on the transmit side. This opens the possibility to mess with 100Gbit/s wavelengths, squashing them into a space smaller than the usual 50GHz spacing, so that more wavelengths can fit on a fiber.

WaveLogic 3 also takes advantage of increased processing smarts. For example, it can be programmed to make tradeoffs -- improving latency by lightening up on FEC, and therefore giving up some reach.

Ciena expects to have customers running live traffic on WaveLogic 3 this year.

Why this matters
This means the 400Gbit/s generation is almost underway, although Ciena expects it to happen in a limited fashion and doesn't expect customer deployments until 2013.

The real importance is on the 100Gbit/s side, where longer reach and lower power are going to be key topics this year. Cisco already declared the ability to run 100Gbit/s wavelengths for 3,000 km without regeneration, as EANTC verified in its recent test of Cisco CloudVerse, and we'll probably hear plenty more about 100Gbit/s improvements during OFC/NFOEC next week.

A couple of other things to note: Ciena will continue using an in-house chip for its next 100Gbit/s generation, showing the power of vertical integration.

And with the transmit DSP, and the ability to squeeze more wavelengths together, it's setting up applications for flexible-grid reconfigurable optical add/drop multiplexers (ROADM)s in the 100Gbit/s generation. It's suspected that a flexible grid will be useful as the industry approaches 1Tbit/s.

Ciena put together this video to show the thing in action:

For more
Keep up with our coverage on the Light Reading OFC/NFOEC site.

— Craig Matsumoto, Managing Editor, Light Reading

(7)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View
chandan kumar
50%
50%
chandan kumar,
User Rank: Light Beer
12/5/2012 | 5:40:56 PM
re: Ciena Pushes Ahead to 400G


The real challenge for R&D is to match reach of 400G and 100G with that of 40G and 10G so that operators can plan smooth upgrades without increasing touch points. Similarly 1T per lambda later to match reach of 100G and 400G

opticaljunkie
50%
50%
opticaljunkie,
User Rank: Light Beer
12/5/2012 | 5:40:55 PM
re: Ciena Pushes Ahead to 400G


ALU never said if they have a soft FEC, so that's probably no? 

Pete Baldwin
50%
50%
Pete Baldwin,
User Rank: Light Beer
12/5/2012 | 5:40:55 PM
re: Ciena Pushes Ahead to 400G


I think I left this part unclear: You need two Wavelogic 3 chips to make 400G; each one does 200G. So you'd need two lasers as well.


Sterling Perrin at Heavy Reading points out that this is Ciena's debut of a single-carrier 100G (versus dual carrier in one 50GHz spacing).  So Ciena will catch up to Alcatel-Lucent on that front.

IJD
50%
50%
IJD,
User Rank: Light Beer
12/5/2012 | 5:40:51 PM
re: Ciena Pushes Ahead to 400G


Other vendors (e.g. NEL) already have 100G single-carrier transceivers with soft FEC, so this isn't new -- what is new is integrating the TX MUX/DAC function, but it's not a surprise given Ciena's paper about their DAC published last year.

rhr
50%
50%
rhr,
User Rank: Light Beer
12/5/2012 | 5:40:45 PM
re: Ciena Pushes Ahead to 400G
Ciena will need two WaveLogic 3 chipsets for 400Gbps. The WaveLogic 3, on a 32nm process, is a two-device chipset (the transmit and receive coherent DSP ASICs). And to your point, Chandan, Ciena says 400G will have a metro regional reach while 200Gbps will achieve 750-1000km. Impressive but as you say, not 100Gbps reaches yet.
rhr
50%
50%
rhr,
User Rank: Light Beer
12/5/2012 | 5:40:44 PM
re: Ciena Pushes Ahead to 400G
Good point - I agree. That said, I would think metro regional is up to 1000km but the implication from Ciena is that the reach is somewhat less than that achieved by a 200Gbps single channel.
IJD
50%
50%
IJD,
User Rank: Light Beer
12/5/2012 | 5:40:44 PM
re: Ciena Pushes Ahead to 400G


Doesn't make sense -- Ciena's 200G uses QAM16 in a 50GHz channel (hence the shorter reach), surely their 400G uses 2 bonded 200G QAM16 50GHz channels so the reach will be the same?


(I doubt that it uses QAM256 in 1 channel, OSNR and reach would be awful...)


IIRC ALU's paper at ECOC used 45Gbaud QAM32 to do 400G in a single channel with 75GHz optical bandwidth, this would presumably have shorter reach than QAM16 but would need faster sampling (90Gs/s?) wider bandwidth (30GHz?) ADCs and DACs.

Flash Poll
Wagner’s Ring
Data Centers Drive Telcos Into the Future

8|28|14   |   2:20   |   (2) comments


Data centers are at the heart of key trends driving telecom -- network virtualization, the drive for increased agility, and the need to compete with OTT providers.
LRTV Custom TV
Why SPs Should Consider Cisco's EPN

8|27|14   |   5:40   |   (0) comments


Sultan Dawood from Cisco discusses Cisco's EPN, which enables SPs to build agile and programmable networks delivering new network virtualized services using Cisco's Evolved Services Platform (ESP).
LRTV Huawei Video Resource Center
Huawei’s Showcase @ Big Telecom Event 2014

8|26|14   |   2.56   |   (0) comments


SoftCOM is Huawei's framework for telecom business and network transformation. Haofei Liu, Solution Marketing Manager, Carrier Business Group, Huawei, showcases Huawei's SoftCOM architecture in this video.
LRTV Huawei Video Resource Center
Huawei @ BTE 2014: Director of Integrated Solutions on SoftCOM & NFV Monetization

8|26|14   |   4.43   |   (0) comments


Libin Dai, Director of Integrated Solutions, Carrier Business Group, discusses Huawei's SoftCOM and NFV monetization. Huawei believes that NFV monetization should be service-driven rather than network-driven, and that operators should have network transformation, service transformation and a compatible and collaborative ecosystem in place in order to deploy NFV.
LRTV Huawei Video Resource Center
Huawei @ BTE 2014: Director of US NFV Lab on CloudEdge & the Future of NFV

8|26|14   |   4.06   |   (0) comments


Sean Chen, Director of US NFV Lab at Huawei, discusses Huawei's new approach to NFV in open collaboration. Huawei believes that through Proof of Concept tests, it could help operators learn and communicate with the industry more effectively. Sean believes that successful implementation of NFV should have its values reaching to end users and discusses how Huawei's ...
LRTV Huawei Video Resource Center
Huawei's Highlights @ Big Telecom Event 2014

8|26|14   |   3.34   |   (0) comments


At the Big Telecom Event in Chicago Huawei showcases its high-level strategy, the SoftCOM architecture, which helps operators reduce the cost of ownership of their network infrastructure and generate additional revenue in the ICT service environment. Huawei showcases over 30 pilot programs from across the globe, focusing on the industry-leading commercial ...
LRTV Custom TV
VeEX – Live from the Show

8|21|14   |   5:58   |   (0) comments


An overview of VeEX Test and Measurement solutions including TX300S multi-service test set with VeExpress cloud-based management system, UX400 universal modular platform supporting 100G testing, and the redesigned RXT modular platform.
LRTV Custom TV
Transitioning CE 2.0 Networks Into the SDN & NFV Era With Telco Systems

8|19|14   |   5:19   |   (0) comments


Telco Systems' Ariel Efrati (CEO) and Moshe Shimon (VP of Product Management) discuss virtualization and how the company's new Open Metro Edge solution utilizes the SDN and NFV concepts to accelerate and orchestrate service delivery through its innovative product portfolio and software applications.
LRTV Custom TV
NFV Myths: Is NFV Still Several Years Away?

8|11|14   |   1:13   |   (0) comments


Some say that NFV (network functions virtualization) is still several years away from being implemented on mobile operator networks. This isn't the case. Operators can get started on their paths to NFV now, as this short video from Skyfire shows.
LRTV Custom TV
A New Security Paradigm in SDN/NFV

7|28|14   |   02:54   |   (0) comments


Paul Shaneck, Global Director Network Solutions for Symantec, discusses the evolving virtualized network, explaining how Symantec is leading the security discussion as it relates to SDN and NFV, and helping to ensure the network is protected and compliant.
LRTV Documentaries
Sprint's Network Evolution

7|24|14   |   14:59   |   (0) comments


Sprint's Jay Bluhm gives a keynote speech at the Big Telecom Event (BTE) about Sprint's network and services evolution strategy, including Spark.
LRTV Documentaries
BTE Keynote: The Software-Defined Operator

7|24|14   |   18:43   |   (1) comment


Deutsche Telekom's Axel Clauberg explains the concept of the software-defined operator to the Big Telecom Event (BTE) crowd.
Upcoming Live Events!!
September 16, 2014, Santa Clara, CA
September 16, 2014, Santa Clara, CA
September 23, 2014, Denver, CO
October 29, 2014, New York City
November 6, 2014, Santa Clara
November 11, 2014, Atlanta, GA
December 9-10, 2014, Reykjavik, Iceland
June 9-10, 2015, Chicago, IL
Infographics
A survey conducted by Vasona Networks suggests that 72% of mobile users expect good performance all the time, and they'll blame the network operator when it's not up to par.
Hot Topics
Rogers, Shaw Take Aim at Netflix
Mari Silbey, Independent Technology Editor, 8/26/2014
Utilities to Pump $11.2B Into Smart Grid – Study
Jason Meyers, Senior Editor, Utility Communications/IoT, 8/26/2014
Verizon Launches QR Code Security Solution
Carol Wilson, Editor-at-large, 8/26/2014
Fiber Revival at Deutsche Telekom
Iain Morris, 8/25/2014
M2M's In Fashion: Wearables Play the US Open
Sarah Reedy, Senior Editor, 8/25/2014
Like Us on Facebook
Twitter Feed