Optical multiplexer and demultiplexer apparatus utilizing...

Details Optical multiplexer and demultiplexer apparatus utilizing... Optical multiplexer and demultiplexer apparatus utilizing...

2007-01-02

2007-01-02

Wells, Nikita (Department: 2881)

Optical waveguides

With optical coupler

Plural

C385S015000, C385S037000

Reexamination Certificate

active

10425068

ABSTRACT:
An optical apparatus functioning either as a multiplexer or a demultiplexer, including: a first polarization beam splitter (PBS); a second PBS optically coupled to the first PBS along an axis of the apparatus; a half-wave plate optically coupled between the first and second PBS; a common optical port optically coupled to the first PBS at a face intersecting the axis; a first non-common optical port optically coupled to the first PBS at a face not intersecting the axis; a second non-common optical port optically coupled to the second PBS; and a reflection interferometer optically coupled to the second PBS. The apparatus provides the benefits of using the reflection interferometer, but does not require paired reflection interferometers or Faraday rotators.

REFERENCES:
patent: 6130971 (2000-10-01), Cao
patent: 6169604 (2001-01-01), Cao
patent: 6169828 (2001-01-01), Cao
patent: 6205270 (2001-03-01), Cao
patent: 6263129 (2001-07-01), Cao
patent: 6310690 (2001-10-01), Cao et al.
patent: 6396629 (2002-05-01), Cao
patent: 6683721 (2004-01-01), Copner et al.
patent: 2002/0122614 (2002-09-01), Zhou et al.
patent: 2003/0007157 (2003-01-01), Hulse et al.

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