Lucent ships big optical system

Lucent Technologies this week announced shipment of a 40G-bit/sec long-haul dense wave division multiplexing system to German carrier Deutsche Telekom AG.

The vendor is supplying DT with LambdaXtreme Transport, an ultralong-haul 10G bit/sec and 40G bit/sec transport system that Lucent claims will offer the lowest cost-per-gigabit in that environment. The product was announced last November.

DT said it would begin field-trials of the system next month. LambdaXtreme Transport is generally available to customers now.

Lucent rival Nortel Networks Corp. also announced this week shipment of its OPTera Connect HDX long-haul optical switch to service provider Touch America.

Due to its roots in Bell Labs, Lucent claims LambdaXtreme Transport can deliver 40G wavelengths for 15 percent less than the cost of combining four standard 10G wavelengths. LambdaXtreme Transport can also carry all 128 10G channels over 4,000 kilometers without regeneration, and supports a 1,000-kilometer all-optical reach at 40G, Lucent claims.

Most competitive systems send a 10G optical signal an average of 3,000 kilometers on a fiber before it begins to dissipate and require regeneration. They also reduce the number of available channels the farther they go, Lucent claims.

Minimal use of amplifiers means service providers now require much fewer steps to provision a wavelength, Lucent claims.

LambdaXtreme Transport includes an optical add/drop multiplexer, which allows network operators either to carry traffic from one end of the network to another or to add and drop traffic anywhere in between. Current long-haul systems are not able to drop traffic in between, Lucent says.

Also in deployment or trials are LambdaRouter All Optical Switch and LambdaUnite Multiservice Switch, an optical transport system and switch. LambdaManager Terabit MultiService Switch will be available later this year, Lucent says.

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More about Bell LabsDeutsche TelekomLucentLucent TechnologiesNortel NetworksProvisionSEC

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