Communication of signals sharing a single optical source
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United States of America Patent
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Mar 21, 1995
Grant Date -
N/A
app pub date -
Oct 20, 1992
filing date -
Oct 20, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
A single optical source is shared by a plurality of optical communication paths to communicate different information signals on the different paths. A high power optical carrier generator provides a carrier signal to an optical multiplexer. The multiplexer splits the optical carrier into a plurality of paths, each including an external optical modulator. The external optical modulator in each path is used to modulate the carrier in its respective path by a desired information signal. An additional modulated optical carrier can be coupled to one or more of the optical communication paths for the communication of additional information such as a standard set of television channel signals in a cable television network.
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