Light Reading

ClariPhy Tackles Coherent Metro Nets

Carolyn Mathas
News Analysis
Carolyn Mathas
3/10/2014
50%
50%

SAN FRANCISCO -- OFC 2014 -- ClariPhy has rocked into OFC with a brace of new products that, it believes, meets the form factor and price points that system vendors and network operators are demanding for metro network applications.

Coherent technology is already in widespread use in 100G, long-haul DWDM (dense wavelength division multiplexing) networks, given its spectral efficiency and reach advantages.

For short-reach metro networks, however, these coherent advantages have been completely out of reach because of their high price tag, high power consumption and size. Instead, inexpensive pluggable 10G DWDM solutions, such as XFP and SFP+, are typically used.

However, capacity pressures in metro networks means carriers are now in need of transport systems that offer the dispersion tolerance and ROADM compatibility found in a coherent solution, but at a power-per-bit and cost that matches, or is better than, current 10G modules.

Oh yeah, and it has to be in a pluggable form factor too. Pluggable advantages include the reuse of line cards with 100G client CFP interfaces for DWDM transmission, and the ability to scale metro transport networks to 100G based on pay-as-you-grow flexibility, compared with the spend-it-all-now-and-grow-into-it mentality that typically delays investment.

Two back-to-back announcements from ClariPhy Communications Inc. aim to deliver the benefits of coherent solutions to metro applications and SDN, with both products currently sampling ahead of commercial availability later this year.

The first is the LightSpeed-II CL20010 SoCs, which can be used for 200G and 400G DWDM transport scenarios. The SoC supports single-carrier 200G transmission using 16QAM modulation, providing dual-carrier 400G super channels on 75GHz DWDM spacing. According to ClariPhy, the SoC can increase fiber capacity 170% over today's 100G coherent systems and drops cost by approximately 50%.

The CL20010 acts as a single chip OTN muxponder that multiplexes two independent 100G client signals (OTU4 or 100G Ethernet) onto a single DWDM wavelength over the same optics now used for 100G coherent transmission. Carriers have the flexibility to use a single, software-programmable line card for 200G and 400G transmission at reaches of more than 600km, and 100G transmission exceeding 3,500km.

ClariPhy also announced another LightSpeed-II family member, the CL10010-Z SoC. The claim to fame for this SoC is integration. It features: a high-speed analog-to-digital and digital-to-analog converter; a coherent DSP that supports 40G QPSK, 100G QPSK and 100G 16QAM; multiple low-power forward error correction (FEC) options; and an integrated OTN framer/mapper for 100G Ethernet connectivity. It enables a 100G coherent CFP module to operate within the 32W power budget defined by the CFP MSA (multisource agreement), and delivers extended performance to 1,200km connections.

When asked about the importance of pluggability, especially as it pertains to the metro, Dr. Paul Voois, co-founder and chief strategy officer at ClariPhy, explained: "There is no swappable coherent low-power solution. This is the first time for a coherent SoC to support 100G coherent CFP. The significance is that it provides a giant leap in power efficiency, as CFP will be 32 watts vs. 80 watts at approximately one fourth of today's cost per bit."

He added: "With CFP, certain size line cards will run out of space. While CFP features DSP inside, CFP2 puts the DSP on the line card where it's easier to control and manage thermals and to run 200G pluggable to enable 200G metro."

ClariPhy is working with pluggable optical module suppliers and with the Optical Internetworking Forum (OIF) to ensure compatibility and performance with coherent CFP2 implementation agreement currently under development in the Forum.

According to Karl Gass, the OIF's Physical and Link Layer Working Group vice chair, "Current power consumption for stuff that goes into a CFP2 module for coherent optics applications [100G Metro or Long Haul] is around 40 watts. Maximum power consumption for the CFP2 MSA is 18 watts, but typical vendors only allow 12 watts. We take the CFP2 transceiver MSA, remove a couple of functions," such as high-power consumption chips, "and use it as a pluggable optics module."

A CFP2-ACO project was initiated approximately a year ago, when OIF members decided they liked the form factor and power budget of the CFP2 pluggable module for a coherent optics transceiver, but the component technology wasn't ready. In the meantime they wanted to move the ADC/DAC/DSP/FEC functions from the module to the host board, and in the process use the module for a pluggable optics solution. The result of the immediate solution was to increase faceplate density and create a coherent optics component in a CFP2 form factor.

Ultimately, the next step rests on the shoulders of carriers that are looking beyond field trials for 200G-400G deployments. What's really next is the fine-tuning of DSP and optics, and the configuration of networks to take advantage of these technologies, all of which will take a couple of years. However, the cost benefits are so compelling that operators should be quite motivated to start feeding their demands into the vendorsphere right now.

— Carolyn Mathas, contributing editor, special to Light Reading

(0)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View
Flash Poll
From The Founder
Networks of the future will rely on "white box" switches and servers rather than proprietary hardware and that's going to alter the shape of the communications industry. Who says so? John Chambers.
LRTV Huawei Video Resource Center
eLTE Rapid Meets the Need for Speed

3|26|15   |   4:45   |   (0) comments


Designed especially for emergency and dedicated ad hoc local mobile communications coverage, Huawei's eLTE Rapid solution can deliver trunked voice, video and data coverage for multiple users over a 6km range and be set up in just 15 minutes, explains Huawei's Norman Frisch.
LRTV Huawei Video Resource Center
On Videos: Challenges & Opportunities

3|26|15   |   5:56   |   (0) comments


Most everything is now connected. And along with 4K and 4G technologies, everyone could be creating and broadcasting video contents. Users are expecting better video experience with any screen, anywhere and anytime. Operators will meet new challenges, but also see some big opportunities.
LRTV Custom TV
JDSU: Delivering Dynamic Networks for a Personalized Experience

3|26|15   |   5:59   |   (0) comments


Light Reading speaks to JDSU at Mobile World Congress 2015 about new solutions in the areas of HetNets, VoLTE, backhaul, virtualization, big data analytics, and real-time intelligence.
LRTV Custom TV
Smarter Service Chaining & New Ways to Benefit From Qosmos Technology

3|25|15   |   03:11   |   (0) comments


David Le Goff, director of strategic and product marketing at Qosmos, explains how the company has added application awareness to subscriber information to make service chaining more efficient and reduce costs for networking and infrastructure. In addition, Qosmos technology, which has been delivered as C libraries, is now also available as a virtual machine, ...
Between the CEOs
Qosmos CEO: The Changing Face of DPI

3|24|15   |   13:53   |   (0) comments


LR CEO and Founder Steve Saunders sits down with the head of Qosmos to talk about the changing state of the art in deep packet inspection technology, including its role in SDN and NFV architectures. Also, how the comms market is becoming more like the automotive industry.
LRTV Huawei Video Resource Center
FC Schalke Scores With Its Agile Stadium

3|24|15   |   6:23   |   (0) comments


Top German soccer club FC Schalke 04 has deployed a new, agile WiFi network from Huawei in its Veltins-Arena stadium and is reaping the benefits in terms of customer satisfaction and business opportunities, explains marketing chief Alexander Jobst.
LRTV Huawei Video Resource Center
Huawei’s Insights on Mobile Video

3|24|15   |   7:51   |   (0) comments


More people than ever are now watching videos on smartphones. Seventy percent of mobile traffic will be video traffic until 2018. In this video, Huawei's exports give their insights on mobile video in terms of business model, network planning and 4G network construction.
LRTV Documentaries
The Rise of Industry 4.0

3|24|15   |   02:26   |   (8) comments


Are you ready for the fourth industrial revolution? It's a big deal for influential operators such as Deutsche Telekom.
LRTV Huawei Video Resource Center
Getting Connected With eLTE

3|23|15   |   06:04   |   (0) comments


Trunked radio communications have entered the 4G LTE world, and with Huawei's eLTE solution, can now deliver a full range of data and video services as well as push-to-talk voice, explains Huawei's Norman Frisch.
LRTV Huawei Video Resource Center
Funkwerk’s on Track With Huawei

3|19|15   |   3:23   |   (0) comments


GSM-R technology specialist Funkwerk and Huawei have forged a partnership that is benefiting both parties, notes Funkwerk's Gottfried Winter.
LRTV Documentaries
How EANTC Tested Cisco's Virtualization Solutions

3|18|15   |   5:49   |   (0) comments


Carsten Rossenhövel, managing director of independent test lab EANTC, tells Light Reading founder and CEO Steve Saunders about the innovative approach his team had to take when validating Cisco's service provider virtualization and cloud solutions.
LRTV Huawei Video Resource Center
Converged Communications: Working Simply & Smartly

3|17|15   |   03.24   |   (0) comments


Edwin Diender, CTO of Huawei's Enterprise Switch & Communications division, outlines the four main pillars of Huawei's unified communications portfolio and explains how the addition of 4K video capabilities has helped Huawei develop a groundbreaking videoconferencing solution.
Upcoming Live Events
April 14, 2015, The Westin Times Square, New York City, NY
May 5, 2015, Hyatt McCormick Place, Chicago, IL
May 6, 2015, Georgia World Congress, Atlanta, GA
May 12, 2015, Grand Hyatt, Denver, CO
May 13-14, 2015, The Westin Peachtree, Atlanta, GA
June 8, 2015, Chicago, IL
June 9-10, 2015, Chicago, IL
June 9, 2015, Chicago, IL
June 10, 2015, Chicago, IL
All Upcoming Live Events
Infographics
Hot Topics
Women in Tech Coming Into Focus
Sarah Thomas, Editorial Operations Director, 3/20/2015
Will Open Source Groups Keep Windows Open?
Carol Wilson, Editor-at-large, 3/20/2015
Google Hires Wall Street's Most Influential Woman as CFO
Dan Jones, Mobile Editor, 3/24/2015
The Rise of Industry 4.0
Ray Le Maistre, Editor-in-chief, 3/24/2015
Net Neutrality Suits: Only The Beginning?
Alan Breznick, Cable/Video Practice Leader, 3/24/2015
Like Us on Facebook
Twitter Feed
Webinar Archive
BETWEEN THE CEOs - Executive Interviews
LR CEO and Founder Steve Saunders sits down with the head of Qosmos to talk about the changing state of the art in deep packet inspection technology, including its role in SDN and NFV architectures.
Chattanooga’s EPB publicly owned utility comms company has become a poster child for how to enable a local economy using next-gen networking technology. Steve Saunders, Founder of Light Reading, sits down with Harold DePriest, president and CEO of EPB, to learn how EPB is bringing big time tech to small town America.
Cats with Phones
More Is More Click Here
T-Mobile's Buy One Get One Free deal was too much for Fluffy to pass up. He decided more was more.
Latest Comment