Optical waveguides – Polarization without modulation
Reexamination Certificate
2007-05-15
2007-05-15
Connelly-Cushwa, Michelle (Department: 2874)
Optical waveguides
Polarization without modulation
C385S001000, C385S037000, C398S081000
Reexamination Certificate
active
10491357
ABSTRACT:
A compensator for compensating polarisation-mode dispersion, comprises a splitter (30) arranged to split light, according to the light's polarisation, between a first optical path and a second optical path; a combiner (40) arranged to combine light from the first optical path and the second optical path, and a monitor (15) for monitoring the light. An active wavelength-delay device (70) is provided in the first optical path and arranged such that components of the light travelling in the first optical path and having different wavelengths are subjected to different delays, the delays being selected according to an output from the monitor (15).
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Parker Michael C.
Walker Stuart D.
Baker & Botts L.L.P.
Connelly-Cushwa Michelle
Fujitsu Limited
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