OFC/NFOEC 2012: Technical paper highlights

Source: The Optical Society

Novel technologies, operators' experiences with state-of-the-art optical deployments and technical papers on topics such as next-generation PON and 400 Gigabit and 1 Terabit optical transmission are some of the highlights of the upcoming OFC/NFOEC conference and exhibition, to be held in Los Angeles from March 4-8, 2012. Here is a taste of some of the technical paper highlights.

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2012: The year of 100 Gigabit transponders

Oclaro has detailed its 100 Gigabit coherent optical module that will be available from the second quarter of 2012. The MI 8000XM, a 5x7-inch 100 Gigabit-per-second (Gbps) transponder, uses NTT Electronics' (NEL) analogue-to-digital converter/ digital signal processor (DSP) ASIC at the receiver that compensates for transmission impairments.

“The world is moving to coherent, there is no question about that”

Per Hansen, Oclaro

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Intelligent networking: Q&A with Alcatel-Lucent's CTO

Alcatel-Lucent's corporate CTO, Marcus Weldon, in a Q&A with Gazettabyte. Here, in Part 1, he talks about the future of the network, why developing in-house ASICs is important and why Bell Labs is researching quantum computing.

Marcus Weldon (left) with Jonathan Segel, executive director in the corporate CTO Group, holding the lightRadio cube. Photo: Denise Panyik-Dale

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The great data rate-reach-capacity tradeoff

Source: Gazettabyte

Optical transmission technology is starting to bump into fundamental limits, resulting in a three-way tradeoff between data rate, reach and channel bandwidth.

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Fujitsu Labs adds processing to boost optical reach

Fujitsu Labs has developed a compensation technique that tackles non-linear effects in a coherent receiver-based optical transmission system. The technique promises to boost the reach of 100 Gigabit-per-second (Gbps) and future higher speed systems.

“That is one of the virtues of the technology; it is not dependent on the modulation format or the bit rate”

Takeshi Hoshida, Fujitsu Labs

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Optical transmission beyond 100Gbps

Briefing: High-speed optical transmission. 

Part 3: What's next?

Given the 100 Gigabit-per-second (Gbps) optical transmission market is only expected to take off from 2013, addressing what comes next seems premature. Yet operators and system vendors have been discussing just this issue for at least six months.

And while it is far too early to talk of industry consensus, all agree that optical transmission is becoming increasingly complex. As Karen Liu, vice president, components and video technologies at market research firm Ovum, observed at OFC 2010, bandwidth on the fibre is no longer plentiful.

“We need to keep a very close eye that we are not creating more problems than we are solving.”

Brandon Collings, JDS Uniphase.

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