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Monday, July 30, 2012 at 5:31PM The Full Service Access Network (FSAN) group has chosen wavelength division multiplexing (WDM) to complement PON's traditional time-sharing scheme for the NG-PON2 next-generation standard.
"The technology choice allows us to have a single platform supporting both business and residential services"
Vincent O'Byrne, Verizon
Wednesday, April 4, 2012 at 4:18PM Briefing: Next-gen PON
Part 1: NG-PON2
The next-generation passive optical network (PON) will mark a departure from existing PON technologies. Some operators want systems based on the emerging standard for deployment by 2015.
“One of the goals in FSAN is to converge on one solution that can serve all the markets"
Derek Nesset, co-chair of FSAN's NGPON task group
CPRI, FSAN, Huawei, NG-PON2, NTT, OFDM, Verizon, WDM-PON, XGPON1, broadband access, ultra dense WDM-PON in Feature Print Article Tuesday, October 25, 2011 at 10:18AM Gazettabyte spoke with BT, Level 3 Communications and Verizon about their 100 Gigabit optical transmission plans and the challenges they see regarding the technology.
Briefing: 100 Gigabit
Part 1: Operators
Operators will use 100 Gigabit-per-second (Gbps) coherent technology for their next-generation core networks. For metro, operators favour coherent and have differing views regarding the alternative, 100Gbps direct-detection schemes. All the operators agree that the 100Gbps interfaces - line-side and client-side - must become cheaper before 100Gbps technology is more widely deployed.
"It is clear that you absolutely need 100 Gig in large parts of the network"
Steve Gringeri, Verizon
100G serial interface, 100Gbps, BT, CFP, CFP2, Level 3, Verizon, service providers in Feature Print Article Thursday, July 7, 2011 at 5:56PM Gazettabyte spoke with Larry Schwerin, CEO of Capella Intelligent Subsystems, about the ROADM market, the company's plans following its latest funding round, and the idea of a WSS-on-a-chip.
The reconfigurable optical add-drop multiplexer (ROADM) market has been the best performing segment of the optical networking market over the last year. According to Infonetics Research, ROADM-based wavelength division multiplexing (WDM) equipment grew 20% from Q2, 2010 to Q1, 2011 whereas the overall optical networking market grew 7%.
“It’s the Moore’s Law: Every two years we are doubling the capacity in terms of channel count and port count”
Larry Schwerin, Capella
1x20 WSS, Capella, Gridless, Infonetics, ROADM, SingTel, Verizon, colourless, directionless in CEO Interview Print Article 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 Monday, February 7, 2011 at 10:07AM Briefing: Next-Generation PON
Part 1: XG-PON1 goes commercial
Alcatel-Lucent is making available what it claims is the first broadband access platforms that support XG-PON1, the 10 Gigabit GPON standard. The company has developed an XG-PON1 line card for use in its latest ISAM-FX as well as its existing ISAM-FD access platforms. The ISAM platforms support copper and fibre-based broadband access.
“First [XG-PON1] deployments will likely be in Asia Pacific but we are seeing strong interest from other regions"
Stefaan Vanhastel, Alcatel-Lucent
Tuesday, April 27, 2010 at 5:25PM Briefing: High-speed optical transmission.
Part 2: 40 and 100Gbps optical transmission
The market for 40 and 100 Gigabit-per-second optical transmission is set to grow over the next five years at a rate unmatched by any other optical networking segment. Such growth may excite the industry but vendors have tough decisions to make as to how best to pursue the opportunity.
Market research firm Ovum forecasts that the wide area network (WAN) dense wavelength division multiplexing (DWDM) market for 40 and 100 Gigabit-per-second (Gbps) linecards will have a 79% compound annual growth rate (CAGR) till 2014.
In turn, 40 and 100Gbps transponder volumes will grow even faster, at 100% CAGR till 2015, while revenues from 40 and 100Gbps transponder sale will have a 65% CAGR during the same period.
Yet with such rude growth comes uncertainty.
“We upgraded to 40Gbps because we believe – we are certain, in fact – that across the router and backbone it [40Gbps technology] is cheaper”
Jim King, AT&T Labs.
Systems, transponder and component vendors all have to decide what next-generation modulation schemes to pursue for 40Gbps to complement the now established differential phase-shift keying (DPSK). There are also questions regarding the cost of the different modulation options, while vendors must assess what impact 100Gbps will have on the 40Gbps market and when the 100Gbps market will take off.
“What is clear to us is how muddled the picture is,” says Matt Traverso, senior manager, technical marketing at Opnext.
