SDN starts to fulfill its network optimisation promise

Infinera, Brocade and ESnet demonstrate the use of software-defined networking to provision and optimise traffic across several networking layers.

Infinera, Brocade and network operator ESnet are claiming a first in demonstrating software-defined networking (SDN) performing network provisioning and optimisation using platforms from more than one vendor.

Mike Capuano, Infinera

The latest collaboration is one of several involving optical vendors that are working to extend SDN to the WAN. ADVA Optical Networking and IBM are working to use SDN to connect data centres, while Ciena and partners have created a test bed to develop SDN technology for the WAN.

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ECOC 2013 review - Part 2

The final part of some of the notable product announcements made at the recent European Conference on Optical Communication (ECOC) exhibition held in London.  

• Oclaro's Raman and hybrid amplifier platform for new networks
• MxN wavelength-selective switch from JDSU
• 200 Gigabit multi-vendor coherent demonstration
• Tunable SFP+ designs proliferate
• Finisar extends 40 Gigabit QSFP to 40km
• Oclaro’s tackles wireless backhaul with 2km SFP+ module

Finisar's 40km 40 Gig QSFP+ demo. Source: Finisar

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ECOC 2013 review - Part 1

Gazettabyte surveys some of the notable product announcements made at the recent European Conference on Optical Communication (ECOC) held in London.  

Part 1: Highlights

• First CFP4 module demonstration from Finisar
• Acacia Communications unveils first 100 Gig coherent CFP 
• Oplink announces a 100 Gig direct detection CFP
• Second-generation coherent components take shape   

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Alcatel-Lucent dismisses Nokia rumours as it launches NFV ecosystem

Michel Combes, CEO of Alcatel-Lucent, on a visit to Israel, talks Nokia, The Shift Plan and why service providers are set to regain the initiative.

Michel Combes, CEO. Photo: Kobi Kantor.

The CEO of Alcatel-Lucent, Michel Combes, has brushed off rumours of a tie-up with Nokia, after reports surfaced last week that Nokia's board was considering the move as a strategy option.

"You will have to ask Nokia," said Combes. "I'm fully focussed on the Shift Plan, it is the right plan [for the company]; I don't want to be distracted by anything else."

Combes was speaking at the opening of Alcatel-Lucent's cloud R&D centre in Kfar Saba, Israel, where the company's internal start-up CloudBand is developing cloud technology for carriers.

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Ranovus developing DWDM links for the data centre

Ranovus has raised US $11 million in funding to develop Terabit capacity links for the data centre. The Ottawa-based start-up plans to use dense wavelength-division multiplexing (DWDM) technology to create huge data pipes that reduce significantly the power consumption, and cost, per bit.

Source: Gazettabyte

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OIF demonstrates its 25 Gig interfaces are ready for use

Eleven companies have been participating in nine demonstrations at the European Conference and Exhibition on Optical Communication (ECOC2013) being held in London this week.

The Open Internetworking Forum (OIF) has demonstrated its specified 25 and 28 Gigabit-per-second (Gbps) electrical interfaces working across various vendors' 100 Gigabit modules and ICs.

"The infrastructure over the backplane is maturing to the point of 25 Gig; you don't need special optical backplanes" John Monson, Mosys

"The ecosystem is maturing," says John Monson, vice president of marketing at Mosys, one of the 11 firms participating in the demonstrations. "The demos are not just showing the electrical OIF interfaces but their functioning between multiple vendors, with optical standards running across them at 100 Gig."

The demonstrations - using the CFP2, QSFP and CPAK optical modules and the 28Gbps CEI-28G-VSR module-to-chip electrical interface - set the stage for higher density 400 and 800 Gigabit line cards, says Monson. The CEI-28G-VSR is specified for up to 10dB of signal loss, equating to some 4 to 6 inches of trace on a high-quality material printed circuit board.

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Is silicon photonics an industry game-changer?

Briefing: Silicon Photonics

Part 3: Merits, challenges and applications   

Shown in blue are the optical waveguides with their tight bend radius while the copper wires carrying high-speed electrical signals is shown in orange. Source: IBM

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