Polarization insensitive amplification device
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United States of America Patent
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Mar 15, 1994
Grant Date -
N/A
app pub date -
May 29, 1992
filing date -
Jul 15, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A polarization-independent amplification device comprising an optical semiconductor amplifier. The amplification device input signal is fed to one side of the amplifier and a reflector is provided at the other side. The amplification device output signal, formed by the amplification device input signal reflected by the reflector and amplified by the amplifier, is taken off at the first side of the amplifier. The reflector is reciprocal, a signal or signal component fed thereto and having a polarization perpendicular to the principal axis of the amplifier being reflected as a reflection signal having a polarization which is virtually parallel to said principal axis and vice versa.
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