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US 6,611,340 B2Granted
Gires-tournois interferometer with Faraday rotators for optical signal interleaver
OwnerShijie Guinventor
Life of this patent
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Abstract
A GTIFR interferometer, for use in an interleaver or in a deinterleaver, wherein the GTIFR interferometer includes a Gires-Toutnois interferometer with a 45 degree Faraday rotator between the mirrors of the Gires-Tournois interferometer and further includes a 22.5 degree Faraday rotator in the light path to the Gires-Tournois interferometer and an interleaver or deinterleaver that contains one GTIFR. A dispersion compensated GTIFR interleaver includes a second Gires-Tournois interferometer for providing chromatic dispersion compensation.
Claims5
A GTIFR interferometer comprising:
- a Gires-Tournois interferometer comprising a partially reflective mirror, a highly reflective mirror spaced a distance d apart from and parallel to the partially reflective mirror with a cavity therebetween, wherein light enters and leaves the cavity via the partially reflective mirror;
- a 45-degree Faraday rotator located in the cavity;
- and
- a 22.5 degree Faraday rotator located outside the cavity in the path of light entering and leaving the cavity.
1 more element
Dependencies are inferred from the claim text.