Another big win for Ciena: AT&T contract sets up Ciena/Lucent showdown. (Ciena Corp; Lucent Technologies)

Ciena Corp. has bagged another significant piece of the dense wavelength division multiplexing market, signing a contract late last week to supply AT&T with DWDM equipment over a five-year period.

While AT&T is still in the testing phase with Ciena's MultiWave Sentry system, Ciena has locked up at least a piece of the DWDM action with three of the four major U.S. interexchange carriers. Sprint and WorldCom already have chosen Ciena as a supplier, and Ciena is locked in as WorldCom's exclusive supplier through the end of this year.

With AT&T, however, Ciena is the second supplier to sign a contract to supply 16-channel WDM systems. Lucent Technologies is already under contract to upgrade its eight-wavelength systems already installed in AT&T's network. …

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