Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers
Reexamination Certificate
2007-02-06
2007-02-06
Lavarias, Amel C. (Department: 2872)
Optical: systems and elements
Polarization without modulation
By relatively adjustable superimposed or in series polarizers
C359S490020, C359S490020, C359S506000, C359S834000, C385S011000, C398S043000, C398S065000
Reexamination Certificate
active
10866443
ABSTRACT:
An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved with a single physical filtration stage. Optical processing on the first leg and second legs of the loop is asymmetrical thereby improving the integrity of the optical signals by effecting complementary chromatic dispersion on the first and second legs. A fundamental filter cell within the interleaver filters optical signals propagating on each of the two legs of the optical loop which intersects the fundamental filter cell.
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Du Tengda
Luo Xin
Zhang Kevin Dapeng
Chapel Derek S.
Finisar Corporation
Lavarias Amel C.
Workman Nydegger
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