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Technology Stocks : The *NEW* Frank Coluccio Technology Forum

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To: Frank A. Coluccio who wrote (28105)	6/11/2009 1:37:37 PM
From: Frank A. Coluccio	Read Replies (2) of 46821

France Telecom: bring it PON Jun 10, 2009 \| fibresystems France Telecom (FT) is spreading its bets when it comes to next-generation passive optical network (NG-PON) technologies. Abstracts: "The [SARDANA] project's main aim is to combine WDM-PON with remote amplification. This combination will push the reach of PON services out to 100 km (about 60 miles), thus allowing the metro and access networks to merge. Philippe Chanclou, who leads FT's involvement in this project, says that this will allow the carrier to save a huge amount of money, by eliminating 90% of the central offices in its access networks." For more on SARDANA, or Scalable Advance Ring-Based Passive Dense Access Network Architecture, see: #msg-24683990 And this, concerning EPOD (the use of OFDM over PONs): "FT is also involved in a new project dubbed EPOD, which stands for Enhanced PON using OFDM (orthogonal frequency division multiplexing) — a technique that mixes lower-frequency signals in the electrical domain before transmission down the fibre. Funded by the French National Research Agency (ANR), the EPOD project aims to increase the reach of PON systems to 100 km without using in-line amplification (see 3S Photonics takes part in the EPOD project - see: tiny.cc ). The EPOD project started in February 2009 and will run for two years. A well known technique in other communications systems, such as DSL and mobile networks, OFDM only recently became a topic of interest in the optical domain, where it has been proposed as way to achieve 100 Gbit/s long-haul transmission (see Start-up spotlight: Ofidium fibresystems.org ). However, OFDM's higher tolerance of chromatic dispersion could also be put to good use in the access network to achieve higher bit rates." Complete article: fibresystems.org See also uplinked accounts: France Telecom Lauds WDM-PON's Potential at #msg-24983761 and Cannes: candid talk on migration strategies at fibresystems.org ------

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