Coherent optical fiber communications system using polarization modulation
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United States of America Patent
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Oct 26, 1993
Grant Date -
N/A
app pub date -
May 15, 1992
filing date -
Jul 4, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A coherent optical communications system using polarisation modulation, wherein the polarisation modulation of the optical signals is obtained by using two lasers (1, 2) emitting orthogonally polarised radiations at different frequencies, which are combined without losses prior to transmission over the line (FIG. 1).
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