Light Reading
Finisar is reportedly providing the laser arrays in Arista's highest-density 100G switch

Non-Silicon Photonics Boost Arista's 100G

Craig Matsumoto
News Analysis
Craig Matsumoto
5/6/2013
50%
50%

The on-board 100Gbit/s optics that Arista Networks Inc. recently announced are coming from Finisar Corp., according to one analyst. (See Arista's On-Board Optics Boost 100G Density.) The optics -- which include 10 lasers placed directly on a line card, replacing a transceiver module -- are making use of Finisar's Board Mount Optical Assembly (BOA), writes analyst Alex Henderson of Needham & Co., in a note published Thursday. Finisar has been shipping that product for more than a year. At OFC/NFOEC in March the company showed a version using 25Gbit/s VCSELs, which has the same footprint as the 10Gbit/s design. Arista's 7500E switch, announced last week, puts 12 100Gbit/s ports on each card, a feat achieved using Finisar's BOA, according to the analyst's note (though neither Henderson nor Light Reading has direct confirmation of this). That's a dramatic leap in 100Gbit/s density and one that comes at a critical time when viewed alongside silicon photonics developments, as the CFP2 interfaces that are just becoming available are likely to fit only eight ports per card. (See Silicon Photonics Prep for 100G Arrival.) Silicon photonics promises benefits in power consumption, cost and possibly density, but the few products on the market don't yet provide leaps like that. Henderson cites the 7500E as evidence that the silicon photonics threat to optical components vendors seems overstated. "Finisar is beating silicon photonics with dramatically lower-cost form factors and substantially improved capacity and enabling very low price-per-ports in the new Arista chassis," Henderson writes. Even so, Finisar isn't ignoring silicon photonics. "We already have access to the technology. We're looking at it extensively in our labs," Rafik Ward, Finisar's vice president of marketing, told Light Reading at OFC/NFOEC. "At ECOC [in September 2012], there were so many guys coming up to me with business cards. 'Hey, I'm from a fab.' 'Hey, I'm from a research organization.' There are people out there whose business model is to give silicon photonics access to anybody who needs it." — Craig Matsumoto, Managing Editor, Light Reading

(5)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View
dineshk913
50%
50%
dineshk913,
User Rank: Light Beer
5/8/2013 | 5:46:19 AM
re: Non-Silicon Photonics Boost Arista's 100G
Would that avoid the cost of XFP or LC integration with that adds up the cost factor there. Though there may be port density but in the end its price and redundancy which customers look forward to ...
Lincoln Dale
50%
50%
Lincoln Dale,
User Rank: Light Beer
5/8/2013 | 2:07:36 AM
re: Non-Silicon Photonics Boost Arista's 100G
Some comments don't follow facts, not surprising for two anonymous posters.

1. "Have fun replacing the whole line card when a single VCSEL channel goes bad or dirty."
In the case of Arista 7500E-12CM-LC linecard, there isn't a lot of opportunity for dirt/dust to get in (automatic sealing flap on the MPO/MTP connector.) By a similar note, the MTBF is incredibly high, so failures aren't seen as a common thing even in very large deployments. Neither is an issue in the real world.

2."I don't think so, for 25G VCSEL, can't reach 150m which Arista has claimed."
Arista has not claimed its running at 25G @ 150m.
Arista has claimed 150m over OM4 MMF for STANDARD-BASED 100GBASE-SR10 which is 10x10 pMMF. And yes, not only has it been claimed, it can do it just fine.
xieyaohui
50%
50%
xieyaohui,
User Rank: Lightning
5/7/2013 | 11:55:50 PM
re: Non-Silicon Photonics Boost Arista's 100G
I don't think so, for 25G VCSEL, can't reach 150m which Arista has claimed. Only 10G VCSEL at OM4 MMF ribbon.
reboot0
50%
50%
reboot0,
User Rank: Light Beer
5/7/2013 | 5:00:58 PM
re: Non-Silicon Photonics Boost Arista's 100G
Have fun replacing the whole line card when a single VCSEL channel goes bad or dirty.
reboot0
50%
50%
reboot0,
User Rank: Light Beer
5/7/2013 | 4:57:48 PM
re: Non-Silicon Photonics Boost Arista's 100G
Have fun replacing the whole line card when a single VCSEL goes bad or dirty.
Educational Resources
sponsor supplied content
Educational Resources Archive
Flash Poll
From The Founder
It's clear to me that the communications industry is divided into two types of people, and only one is living in the real world.
LRTV Documentaries
Optical Is Hot in 2015

1|23|15   |   01:56   |   (2) comments


Optical comms technology underpins the whole communications sector and there are some really hot trends set for 2015.
LRTV Custom TV
Policy Control in the Fast Lane

1|22|15   |   2:57   |   (0) comments


What's making policy control strategic in 2015 and beyond? Amdocs talks with Graham Finnie from Heavy Reading about some of the key factors driving change in the data services landscape. Find out what his policy management research reveals about the road ahead for policy control.
LRTV Documentaries
Highlights From the 2020 Vision Executive Summit

1|21|15   |   4:33   |   (2) comments


In December 2014, Light Reading brought together telecom executives in Reykjavik, Iceland to discuss their vision for high-capacity networks through the end of the decade. The intimate, interactive meeting was set against the backdrop of Iceland's spectacular natural beauty. As one of the event's founding sponsors, Cisco's Doug Webster shared his company's ...
LRTV Huawei Video Resource Center
Huawei Pay-TV Partner Harmonic, Helping Carriers Accelerate 4K Video Deployment with Huawei

1|20|15   |   5:42   |   (1) comment


At IBC, Peter Alexander, Senior Vice President & CMO at Harmonic, speaks about the growing interest in pay-TV service and its branching into multiple devices.
LRTV Huawei Video Resource Center
Sony Marketing Director Olivier Bovis Discusses the Outlook for 4K and Cooperation With Huawei at IBC 2014

1|20|15   |   6:50   |   (0) comments


At IBC, Olivier Bovis, Marketing Director of Sony, speaks about the coming of the 4K era.
LRTV Huawei Video Resource Center
Huawei Pay-TV Partner Envivio, Helping Carriers Accelerate 4K Video Deployment

1|20|15   |   2:57   |   (0) comments


At IBC, Olivier Bovis, Marketing Director of Sony, speaks about the coming of the 4K era.
LRTV Huawei Video Resource Center
Pay-TV's Networked Future

1|20|15   |   6:29   |   (0) comments


At IBC, Jeff Heynen, Principal Analyst at Infonetics, speaks about the future of the pay-TV industry and its transition.
LRTV Huawei Video Resource Center
Jeff Heynen: Distributed Access Will Help MSOs Compete in the Future

1|20|15   |   2:26   |   (0) comments


At IBC, Jeff Heynen, Principal Analyst at Infonetics, speaks about moving to distributed access and the future trend of cable business.
LRTV Interviews
Cisco Talks Transformation

1|20|15   |   13:02   |   (0) comments


In December 2014, Steve Saunders sat down with Cisco VP of Products & Solutions Marketing Doug Webster at Light Reading's 2020 Vision executive summit in Reykjavik, Iceland. They spoke about Cisco's approach to network virtualization as well as how service providers can begin to monetize high-capacity networks through the end of the decade.
LRTV Interviews
Bob Wilson, Arsenal Legend: The Light Reading Interview

1|16|15   |   35:36   |   (3) comments


Arsenal goalkeeping legend Bob Wilson was Light Reading's guest interviewee at the 2020 Vision Executive Summit in December. See what the former soccer star and sports broadcaster had to say when he took to the stage in Iceland.
LRTV Custom TV
What MEF Third Network Initiative Means for SDN & NFV

1|14|15   |   6:13   |   (0) comments


Vitesse Semiconductor CTO Martin Nuss discusses the importance of the MEF Third Network initiative and why it's good news for SDN/NFV industry initiatives.
LRTV Huawei Video Resource Center
Frank Miller: Distributed Solutions are the Best Build for the Future - Part II

1|9|15   |   2:46   |   (0) comments


At SCTE, Frank Miller, Global CTO of MSO at Huawei, speaks about Cable 2.0 and its innovative future.
Upcoming Live Events
February 5, 2015, Washington, DC
February 19, 2015, The Fairmont San Jose, San Jose, CA
March 17, 2015, The Cable Center, Denver, CO
April 14, 2015, The Westin Times Square, New York City, NY
May 12, 2015, Grand Hyatt, Denver, CO
May 13-14, 2015, The Westin Peachtree, Atlanta, GA
June 9-10, 2015, Chicago, IL
September 9-10, 2015, The Westin Galleria Dallas, Dallas, TX
September 29-30, 2015, The Westin Grand Müchen, Munich, Germany
November 11-12, 2015, The Westin Peachtree Plaza, Atlanta, GA
December 1, 2015, The Westin Times Square, New York City
December 2-3, 2015, The Westin Times Square, New York City
Infographics
Hot Topics
Cuomo Unveils Broadband Aid Program
Alan Breznick, Cable/Video Practice Leader, 1/19/2015
BlackBerry Wants Net Neutrality Protection -- That's Just Sad
Mitch Wagner, West Coast Bureau Chief, Light Reading, 1/22/2015
FiOS Picks Up Pace Again
Alan Breznick, Cable/Video Practice Leader, 1/22/2015
Indiana Carrier Takes Fiber to the Farm
Jason Meyers, Senior Editor, Gigabit Cities/IoT, 1/22/2015
Verizon Ready for Google MVNO Challenge
Dan Jones, Mobile Editor, 1/22/2015
Like Us on Facebook
Twitter Feed
Webinar Archive