JDSU targets 100 Gbps at ECOC 2012
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JDSU targets 100 Gbps at ECOC 2012
If you stop by the JDSU (NASDAQ: JDSU) (TSX: JDU) stand at the European Conference and Exhibition on Optical Communications (ECOC) in Amsterdam September 17-19, you’ll find a lot of new advances related to 100-Gbps technology and applications, the company promises.Test in particular will be an emphasis. The company plans invitation-only demonstrations of what it asserts is the first instrument to be able to perform tests on 100G CFP2 modules. Using new capabilities, JDSU will show how the ONT-100G can enable component and system vendors to test both CFP2 and CFP4 modules.Those without special invitations will be able to see JDSU’s 100G multichannel test capabilities for design verification testing of Optical Transport Network (OTN) applications. The offering performs tests at 32X the speed of previous instruments, JDSU asserts. The ability to test multiple Optical Channel Data Units (ODUs) simultaneously rather than the traditional sequential approach enables component and system vendors to exercise the switching capabilities of their 100G transmission products.For the field, JDSU will unveil the first members of its new SmartClass Fiber Family of optical handheld tools. The portable test sets integrate automatic PASS/FAIL certification for fiber inspection and optical power measurements in a single instrument. The instrument makes field work test and certification fast and easy, JDSU says.On the high-speed components and modules side, JDSU says it also will highlight modulators and receivers that are being shipped in volume for 40G and 100G network applications. The comany says it also now custom products for 40G and 100G modules. Speaking of high-speed modules, the company also will display its suite of client-side modules, including units in 40G QSFP+ and 100G CFP2/CFP4 form factors.The company also will show off its agile network products. This includes a demonstration of interoperability between its tunable SFP+ optical transceiver and a standard fixed-wavelength device. JDSU also will show off the latest editions to its TrueFlex portfolio, including a twin 1x20 wavelength selective switch (WSS).The company also will celebrate the fact that it has shipped more than 150,000 pump lasers to network equipment manufacturers that are used to power EDFAs.
ClariPhy targets metro with 40G LightSpeed Coherent SoC
Having triumphed in the coherent 40-Gbps long-haul space, ClariPhy Communications, Inc. has now turned its sights on metro and regional networks with a new version of the CL4010 LightSpeed Coherent SoC. The metro-focused version of the chip can operate at a data rate of 47 Gbps to support the forward error correction (FEC) necessary to ensure 40-Gbps transmission alongside lower-speed signals.The SoC leverages dual-polarization quadrature phase-shift keying (DP-QPSK) coherent technology. ClariPhy developed its new capabilities in collaboration with fellow semiconductor supplier Cortina Systems Inc., according to Paul Voois, co-founder and chief strategy officer at ClariPhy. The partnership derived from the need to overcome the cross-phase modulation (XPM) impairments likely to be encountered when transmitting coherent 40-Gbps signals alongside 10-Gbps wavelengths. ClariPhy leaned on Cortina’s FEC expertise in the CL4010’s design process, Voois says. As a result, ClariPhy recommends that its module and system developer customers pair its 40G coherent SoC with Cortina System’s FEC-enabled CS604x and CS600x Optical Transport Network (OTN) processors.The combination of the ClariPhy and Cortina devices results in an optical signal-to-noise ratio (OSNR) sensitivity improvement of up to 3 dB, according to ClariPhy. This translates into the ability to transmit coherent 40-Gbps signals through up to 15 spans and a reach of at least 1200 km. For applications that require FEC with greater than 13% overhead, ClariPhy also offers the CL5018 LightSpeed Coherent SoC. This chip, which supports data rates from 47 Gbps to 50 Gbps, is designed to be used with Cortina’s 20% and 25% overhead FEC codes.Voois added ClariPhy has designed the device to be power- and cost-effective, but declined to provide specific figures for either parameter.ClariPhy has shipped the original version of the CL4010 since 2011 to such module vendors as Oclaro, NEC, and JDSU (see, for example, “ClariPhy, Oclaro tout 40-Gbps coherent”). The new version of the CL4010 is production ready, Voois says; modules using the device are expected to sample this month.It appears that Oclaro, for one, is already onboard. “The higher bit rate capability of the enhanced LightSpeed SoC from ClariPhy will help our customers to deploy 40G coherent line cards more widely in metro networks, which are already carrying intensity modulated wavelengths such as conventional 10G connections,” said Richard Smart, senior vice president and general manager of Optical Network Subsystems at Oclaro via a ClariPhy press release. “This feature enables network operators to introduce coherent technology more pervasively without having to build overlay networks.”The announcement of the metro 40-Gbps coherent SoC comes only a few days after MultiPhy announced its intention to have a chip for coherent 100-Gbps metro applications in customers’ hands by the end of next year (see “MultiPhy details 100-Gbps metro coherent DSP transceiver plans”). Voois acknowledged that ClariPhy has a 100-Gbps coherent transceiver on its roadmap but declined to provide details, other than to say it plans to address 100-Gbps requirements in both long-haul and metro/regional applications.
Acacia Communications details 100-Gbps coherent optical module
Acacia Communications has finally gone public with details of its work on 100-Gbps coherent optical modules. The company has announced on the first day of ECOC in Amsterdam that it has been shipping its AC100 OIF-compliant module in production volumes since last year – well before its better-established competitors.The startup’s advantage over these competitors is that it had the resources – both in expertise and funds – to develop its own DSP ASIC. Speaking with Lightwave, Raj Shanmugaraj, president and CEO at Acacia, admitted to Lightwave that the company partnered with outsiders for certain aspects of the ASIC design. Regardless, the device worked the first time, co-founder and CTO Benny Mikkelsen, pointed out. The optical components for the module came from outside sources.The AC100 features lower power consumption than the OIF MSA specifications, soft-decision forward error correction (SD-FEC), and system and link performance monitoring capabilities, the Acacia sources said.The company has shipped for deployment more than 500 of the Telcordia-qualified modules as of the first half of this year to a variety of systems vendors. Shanmugaraj says the customer roster includes systems houses with internal coherent technology development programs. He declined to detail how many customers the company serves or their identities. However, the company issued a press release that cited the application of the AC100 in a network that included “a 24-span, 2500-km all optical path through 9 ROADMs.” This example echoes a deployment in Mexico that Xtera Communications announced this past May (see “Mexico's CFE Telecom taps Xtera for 100G network”).“Spending in the content provider and the enterprise spaces is driving a significant portion of the optical market as of Q2 of 2012, which is especially relevant for 100G vendors," said Eve Griliches, vice president, optical networking at market research firm ACG Research, via the same press release. “Acacia has demonstrable strength with product deployed in production networks with many customers now. Clearly they offer vendors, service providers, and content providers with an MSA solution that can be leveraged immediately.”While Shanmugaraj said that some of Acacia’s customers are using the AC100 to support metro requirements, the company has a metro-optimized module on its to-do list. Shanmugaraj declined to provide further details of this effort.
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