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Entries in 400Gbps (17)

Friday
Jan112013

A FOX-C approach to flexible optical switching

Flexible switching of high capacity traffic carried over ’super-channel' wavelengths is the goal of the European Commission Seventh Framework Programme (FP7) research project.


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Friday
Aug312012

The uphill battle to keep pace with bandwidth demand

Relative traffic increase normalised to 2010 Source: IEEE

Optical component and system vendors will be increasingly challenged to meet the expected growth in bandwidth demand.

According to a recent comprehensive study by the IEEE (The IEEE 802.3 Industry Connections Ethernet Bandwidth Assessment report), bandwidth requirements are set to grow 10x by 2015 compared to demand in 2010, and a further 10x between 2015 and 2020. Meanwhile, the technical challenges are growing for the vendors developing optical transmission equipment and short-reach high-speed optical interfaces. 

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Wednesday
Aug222012

Briefing: Flexible elastic-bandwidth networks 

Vendors and service providers are implementing the first examples of flexible, elastic-bandwidth networks. Infinera and Microsoft detailed one such network at the Layer123 Terabit Optical and Data Networking conference held earlier this year.

Optical networking expert Ioannis Tomkos of the Athens Information Technology Center explains what is flexible, elastic bandwidth.

Part 1: Flexible elastic bandwidth


"We cannot design anymore optical networks assuming that the available fibre capacity is abundant" 

Prof. Tomkos

 

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Friday
Mar022012

Ciena: Changing bandwidth on the fly

Ciena has announced its latest coherent chipset that will be the foundation for its future optical transmission offerings. The chipset, dubbed WaveLogic 3, will extend the performance of its 100 Gigabit links while introducing transmission flexibility that will trade capacity with reach.

Feature: Beyond 100 Gigabit - Part 1


"We are going to be deployed, [with WaveLogic 3] running live traffic in many customers’ networks by the end of the year"

Michael Adams, Ciena

 

 

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Tuesday
Jan312012

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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Tuesday
Dec062011

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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Friday
Sep232011

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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