& cplSiteName &

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        ADD A COMMENT
From The Founder
The time has come for a telecom app store to save the industry.
Flash Poll
Live Streaming Video
Charting the CSP's Future
Six different communications service providers join to debate their visions of the future CSP, following a landmark presentation from AT&T on its massive virtualization efforts and a look back on where the telecom industry has been and where it's going from two industry veterans.
LRTV Documentaries
Service Provider Panel: Partnering in the Digital Era

5|22|17   |     |   (0) comments


Coopetition has always been part of telecom, but the ecosphere now includes data centers, vendors, apps developers, cloud service providers and Internet content providers. This BCE 2017 panel explores the new attitudes among network operators as to the value and variety of ...
LRTV Interviews
Site Demo: AT&T's IoT Flow Platform

5|19|17   |   04:25   |   (0) comments


At AT&T's R&D center in Tel Aviv, Israel, project leader Eyal Segev talks about the operator's Flow platform and how it helps to prototype IoT applications.
LRTV Documentaries
Agent of Change: A Q&A With AT&T's John Donovan

5|18|17   |     |   (0) comments


Carol Wilson talks with the man leading AT&T's transformation efforts about the challenge of change.
LRTV Documentaries
BCE Service Provider Panel: The New Business Realities

5|18|17   |     |   (0) comments


For virtualization to happen, the telecom industry first has to grapple with key functional aspects of SDN and NFV that need to be universal, such as onboarding of virtualized network functions and federation of software-defined networks.
LRTV Interviews
BCE Service Provider Keynote: CenturyLink

5|16|17   |   22:32   |   (0) comments


Aamir Hussain leads the Product Development and Technology organization at CenturyLink, which includes the company's information technology function. He is an experienced senior technology executive with more than 25 years of proven success in the implementation of global technology operations, operationalization of complex technology, infrastructures and business ...
LRTV Interviews
CenturyLink CTO on Transformation

5|16|17   |   7:43   |   (0) comments


The 50-year-old telco has already gone through several transformations, including every time it made an acquisition, but its purchase of Level 3 coupled with changes in technology and customer expectations necessitates its biggest transformation yet.
LRTV Documentaries
Light Reading Hall of Fame 2017

5|15|17   |   5:05   |   (1) comment


Find out who made it into Light Reading's Hall of Fame this year.
LRTV Interviews
Site Visit: AT&T's Tel Aviv R&D Center

5|15|17   |   09:58   |   (1) comment


Nir Shalom, general manager and VP of application development at AT&T Israel, talks about the key service developments undertaken at the AT&T R&D facility in Tel Aviv and how the team there has adopted new ways of working.
Telecom Innovators Video Showcase
Act on Your Intelligence With Amdocs aia!

5|15|17   |     |   (0) comments


Amdocs CMO Gary Miles explains how communications service providers can seize the AI opportunity with Amdocs real-time digital intelligence platform.
LRTV Interviews
Logtel CEO: Making Sense of IoT

5|15|17   |   09:48   |   (0) comments


Jacques Bensimon, founder and CEO of Tel Aviv-based training and consultancy Logtel, talks about the need to make IoT more than just a buzzword.
LRTV Huawei Video Resource Center
The Challenges of Mobile Banking Implementation

5|12|17   |     |   (0) comments


Kamal Quadir of bKash Limited explains the challenges and needs of implementing mobile banking in the Bangladesh market.
LRTV Interviews
Tel Aviv: A Hub of Innovation

5|10|17   |   07:58   |   (0) comments


Light Reading's Ray Le Maistre and Dan Allen discuss the technology innovation, food and amazing sights they witnessed during a recent trip to Israel.
Infographics
With the mobile ecosystem becoming increasingly vulnerable to security threats, AdaptiveMobile has laid out some of the key considerations for the wireless community.
Hot Topics
AT&T's Donovan: Women Adapt Faster Than Men
Sarah Thomas, Director, Women in Comms, 5/18/2017
Verizon on M&A: Who Needs a Cableco?
Mari Silbey, Senior Editor, Cable/Video, 5/17/2017
Standardization Needs Room for Innovation
Mitch Wagner, Editor, Enterprise Cloud, 5/17/2017
Fright Wigs & Cocktails: BCE 2017 in Pics
Mitch Wagner, Editor, Enterprise Cloud, 5/19/2017
Sonus & Genband Finally Combine to Form $745M Company
Dan Jones, Mobile Editor, 5/23/2017
Like Us on Facebook
Twitter Feed
BETWEEN THE CEOs - Executive Interviews
One of the nice bits of my job (other than the teeny tiny salary, obviously) is that I get to pick and choose who I interview for this slot on the Light Reading home ...
TEOCO Founder and CEO Atul Jain talks to Light Reading Founder and CEO Steve Saunders about the challenges around cost control and service monetization in the mobile and IoT sectors.
Animals with Phones
What Brogrammers Look Like to the Rest of Us Click Here
Live Digital Audio

Playing it safe can only get you so far. Sometimes the biggest bets have the biggest payouts, and that is true in your career as well. For this radio show, Caroline Chan, general manager of the 5G Infrastructure Division of the Network Platform Group at Intel, will share her own personal story of how she successfully took big bets to build a successful career, as well as offer advice on how you can do the same. We’ll cover everything from how to overcome fear and manage risk, how to be prepared for where technology is going in the future and how to structure your career in a way to ensure you keep progressing. Chan, a seasoned telecom veteran and effective risk taker herself, will also leave plenty of time to answer all your questions live on the air.