Deutsche Telekom completes LambdaXtreme field trials

Aug. 2, 2002
2 August 2002 -- Lucent Technologies' ultra-long-distance optical system LambdaXtreme Transport has passed its first endurance tests in field conditions.

2 August 2002 -- The ultra-long-distance optical system LambdaXtreme Transport has passed its first endurance tests in field conditions. LambdaXtreme was developed by Lucent Technologies which says it is one of the world's first 40Gbit/s optical interface.

Deutsche Telekom conducted successful field trials in May, transmitting 40-Gbit/s signals over a distance of more than 734km over standard fibre without electrical regeneration. Lucent says the tests represent a "significant milestone" with regard to range and everyday suitability of optical 40-Gbit/s dense wavelength division multiplexing systems.

The distance covered is also significant because increased data rates normally reduce the accessible distance due to physical effects within the fibre. LambdaXtreme Transport can transmit 128 x 10Gbit/s optical signals up to 4,000 km without electrical amplification. For 64 x 40G signals, the distance would be up to 1,000 km.

"The success of the LambdaXtreme Transport tests has proved that our 40G technology is fully fit for everyday use", says Dr. Rainer Fechner, head of Lucent's Nuremberg facility and responsible for Lucent's R&D activities in Germany.

www.lucent.com

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