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MCI Tests Wavelength Division Multiplexing System

Photonics Spectra
Mar 1997
In an effort to increase the capacity of its existing fiber plant, telecommunications giant MCI has launched what it calls the first real-world combination of a 10-Gb/s OC-192 networking system and wavelength division multiplexing on 60 circuits within its original network. The company's goal is to have four wavelengths making up two bidirectional multiplexed channels over a single fiber. The 275-mile route, which stretches from Chicago to St. Louis, incorporates one Hitachi OC-192 generator and four optical amplifiers, with the optical equipment coming from Pirelli Cable. MCI is planning similar trials with fiber makers Northern Telecom and Alcatel Telecom and will choose suppliers for commercial deployment later this year.

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