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Thursday, April 21, 2011 at 11:42AM A project to develop optical networks using terabit light paths has been announced by a consortium of Israeli companies and universities. The Tera Santa Consortium will spend 3-5 years developing orthogonal frequency division multiplexing (OFDM)-based terabit optical networking equipment.
“This project is very challenging and very important”
Shai Stein, Tera Santa Consortium
Thursday, April 14, 2011 at 8:58AM China’s optical component firms must adapt if they are to match their Western counterparts in market reach, company ambition and technology portfolios. These are the findings of a report - China: The New Land of Opportunity - on the local optical component (OC) industry by market research firm, LightCounting.
“If [Chinese optical component] companies get $100m from an IPO, they have the resources to really do things”
Vladimir Kozlov, LightCounting
Tuesday, April 12, 2011 at 3:18PM Avago Technologies is now delivering to customers its 120 Gigabit-per-second optical engine devices.
Such a parallel optics design offer several advantages when used on a motherboard. It offer greater flexibility when cooling since traditional optics are normally in pluggable slots at the card edge, furthest away from the fans. Such optical engines also simplify high-speed signal routing and electromagnetic interference issues since fibre is used rather than copper traces.
Figure 1: Fourteen 120Gbps MiniPods on a board. Source: Avago Technologies
Monday, April 11, 2011 at 10:57AM Avago Technologies, Finisar and Opnext spoke to Gazettabyte about market trends and their recent OFC/NFOEC announcements.
More compact transceiver designs at 10, 40 and 100 Gigabit, advancements in reconfigurable optical add-drop multiplexer (ROADM) technology and parallel optical engine developments were all in evidence at this year’s OFC/NFOEC show held in Los Angeles in March.
“MSAs are designed by committee, and when you have a committee you throw away innovation and you throw away time-to-market”
Victor Krutul, Avago Technologies
Friday, March 11, 2011 at 11:53AM What has been announced?
Infinera has detailed Terabit coherent detection photonic integrated circuits (PICs). The pair - a transmitter and a receiver PIC – implement a ten-channel 100 Gigabit-per-second (Gbps) link using polarisation multiplexing quadrature phase-shift keying (PM-QPSK). The Infinera development work was describe in papers given at the OFC/NFOEC event held in Los Angeles.
Infinera recently demonstrated its 5x100Gbps PIC carrying traffic within Interoute Communications’ network. The 5x100Gbps PIC-based system will be available commercially in 2012.
“We think we can drive the system from where it is today – 8 Terabits-per-fibre - to around 25 Terabits-per-fibre”
Dave Welch, Infinera
Wednesday, March 9, 2011 at 9:08AM Briefing: Green ICT
Part 2: Operators’ power efficiency strategies
Service providers have set themselves ambitious targets to reduce their energy consumption by a fifth by 2020. This despite the expected traffic they will carry being thirty times today’s volumes. Given the cost of electricity and operators’ requirements, such targets are not surprising: KPN, with its 12,000 sites in The Netherlands, consumes 1% of the country’s electricity.
“We also have to invest in capital expenditure for a big swap of equipment – in mobile and DSLAMs"
Philippe Tuzzolino, France Telecom-Orange
AT&T, BT, Deutsche Telekom, France Telecom, KPN, PUE, Verizon, service providers in Feature Print Article Wednesday, March 2, 2011 at 10:02AM Briefing: Green ICT
Part 1: Standards and best practices
Keith Dickerson is chair of the International Telecommunication Union's (ITU) working party on information and communications technology (ICT) and climate change.
In a Q&A with Gazettabyte, he discusses how ICT can help reduce emissions in other industries, where the power hot spots are in the network and what the ITU is doing.
"If you benchmark base stations across different countries and different operators, there is a 5:1 difference in their energy consumption"
Keith Dickerson
