Transceiver for a bidirectional coherent optical transmission system
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United States of America Patent
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Jun 9, 1992
Grant Date -
N/A
app pub date -
Aug 10, 1989
filing date -
Aug 11, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A transceiver (11) for a bidirectional coherent optical transmission system with a fiber link (12) is provided with a laser (16) for transmitting a signal carrier wave, a modulator, a heterodyne or homodyne coherent detector (13), and a demodulator. To make such a transceiver (11) more economical on components, more compact in design, and less expensive to manufacture, the laser (16) is simultaneously used to transmit oscillator radiation for the heterodyne or homodyne coherent detector (13) of the same transceiver (11) and/or to optically amplify the signal carrier wave arriving from the remote transceiver (11) over the fiber link (12).
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