Method of and device for amplifying channels extracted from a wavelength division multiplex
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United States of America Patent
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Jun 22, 1999
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app pub date -
Apr 11, 1997
filing date -
Apr 12, 1996
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Abstract
To optimize the amplification in a device for extracting channels from a wavelength division multiplex, the following steps are carried out in succession: a first amplification step with a first gain, a wavelength selection step, and a second amplification step with a second gain. The first and second gains respectively confer upon the output optical signal a fixed signal to noise ratio and a particular optical power. Applications include optical transmission networks.
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