Optical waveguides – Optical transmission cable – Loose tube type
Reexamination Certificate
2007-06-05
2007-06-05
Doan, Jennifer (Department: 2874)
Optical waveguides
Optical transmission cable
Loose tube type
C385S100000, C385S109000
Reexamination Certificate
active
10458440
ABSTRACT:
An optical device for changing polarization comprises a waveguide having a waveguide end facet coupled to a quarter-wave plate/reflector combination to rotate the polarization of incident light to the waveguide by 90 degrees. In one embodiment, a polarization beam splitter/rotator combination (PBSR) uses a quarter-wave plate in reflection at the end facet of the waveguide. The polarization beam splitter/rotator combination and variations of that structure are applied in various useful topologies as polarization mode dispersion (PMD) compensators and polarimeters.
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Doan Jennifer
Lucent Technologies - Inc.
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