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To: Kent Rattey who wrote (1247)	10/11/1999 11:08:00 PM
From: Wayne Wiechart	Read Replies (1) \| Respond to of 24042

Thanks for sharing the article Kent. WWW

To: Kent Rattey who wrote (1247)	10/12/1999 1:37:00 PM
From: pat mudge	Read Replies (1) \| Respond to of 24042

From Telecom 99 in Geneva: The Charge of the Light Brigade Optical vendors strut their high-speed stuff at Telecom 99 David Newman, Data Communications Optical networking is likely to bring about the next big revolution in telecom technology. It promises to boost the bandwidths that can be carried over fiber by orders of magnitude at the same time as slashing carriers' costs. The real benefits of this technology probably won't kick in for another year or so, but plenty of vendors are showcasing their developments at Telecom 99, enabling visitors to see what's coming down the pipe. Those developments include optical transmission systems operating at record speeds and all-optical add-drop muxes that eliminate the need for a lot of expensive Sonet/SDH gear in carrier nets. They also include tunable lasers that cut costs and avoid interoperability problems, and ways of extending optical nets into data centers. The speed record for optical transmission systems - 80 Gigabit/s over a single wavelength - was claimed by Nortel Networks (Brampton, Ontario), at a press conference yesterday at Telecom 99. To put that transmission rate into perspective, today's fastest systems handle 10 Gb/s. Two other vendors, Lucent Technologies (Murray Hill, N.J.) and Pirelli Cavi e Sistemi SpA (Milan), are demonstrating 40 Gigabit/s transmission systems. Dense wavelength-division multiplexing developments boost the bandwidths that can be carried over a single strand of fiber. Nortel's Optera gear can handle 80 wavelengths, each carrying 80 Gigabit/s, or a cool 6.4 Terabit/s a second, according to the vendor. Eventually, it'll be able to do this over distances to 480 kilometers. Bear in mind, however, that this gear isn't expected to ship until some time in 2001.