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OFC: Hero Experiments

Craig Matsumoto
2/29/2008

8:45 AM -- SAN DIEGO -- OFC/NFOEC -- Alcatel-Lucent (NYSE: ALU) made waves with a 16.4 Tbit/s demonstration described in its OFC/NFOEC post-deadline paper. (See AlcaLu Climbs to 16.4 Tbit/s.) Let's take a look at what else was in this year's crop.

For the uninitiated: The post-deadline papers often represent the coolest technical results presented at OFC/NFOEC. We write about the conference mostly as a tradeshow, but it's still a PhD funfest at heart, with a full slate of very technical talks on the latest in optical networking.

Here are a few others that made the post-deadline cut.

  • Alcatel-Lucent: They had three more papers! A 107 Gbit/s receiver using the differential quadrature phase shift keying (DQPSK) modulation scheme (this one could be another big step towards 100 Gbit/s Ethernet), an 80 Gbit/s modulator, and a 43 Gbit/s modulator composed of 16 quadrature amplitude modulation units. (See AlcaLu Touts Breakthroughs.)

    Those three come out of Alcatel-Lucent USA (Bell Labs ?), while the 16.4 Tbit/s paper came from the company's French half, in conjunction with Kylia .

  • Infinera Corp. (Nasdaq: INFN): That 400-Gbit/s photonic integrated circuit announced earlier this week -- consisting of 10 lanes running 40 Gbit/s each -- became a post-deadline publication. (See Infinera Unveils PIC Road Map.)

  • JDSU (Nasdaq: JDSU; Toronto: JDU): Its paper described a planar waveguide version of an erbium-doped fiber amplifier (EDFA). Now, the Superblade product JDSU announced on Tuesday included an EDFA among its small, integrated elements, so it's possible this paper describes that EDFA. I'll admit I can't really tell. (See JDSU Intros Superblade and OFC: JDSU & Superblade!.)

  • University of California, Santa Barbara (UCSB) : John Bowers (a founder of Calient Technologies Inc. ) and his colleagues have come up with a Distributed Feedback Silicon Evanescent Laser, an electrically pumped laser that appears to be built of silicon rather than something like indium phosphide.

    If I'm understanding it right, this is an interesting step in the silicon photonics area. And it's different from the work that Kotura Inc. , Lightwire Inc. , and Luxtera Inc. are doing.


— Craig Matsumoto, West Coast Editor, Light Reading

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