Multiplexing of optical signals
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United States of America Patent
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-
Nov 25, 1986
Grant Date -
N/A
app pub date -
Aug 26, 1982
filing date -
Sep 1, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In an optical transmission system in which a plurality of optical signal channels is multiplexed before transmission along a common optical path to a receiver, each channel is produced by means of a respective multimode injection laser, the overall cavity length of each laser being arranged to provide a multimode spectral output with a respective intermode spacing which differs from that provided by the other lasers for channel discrimination purposes. Comb filters are employed for demutliplexing.
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