Optical interleaver and filter cell design with enhanced...

Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers

Reexamination Certificate

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C359S490020, C359S490020, C359S506000, C359S834000, C385S011000, C398S043000, C398S065000

Reexamination Certificate

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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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