Depolarizer

Details Depolarizer Depolarizer

2006-05-02

2006-05-02

Connelly-Cushwa, Michelle (Department: 2874)

Optical waveguides

Polarization without modulation

C385S033000, C385S047000, C359S490020, C359S490020

Reexamination Certificate

active

07039262

ABSTRACT:
An optical depolarizer includes a birefringent block, a reflector coupled to the block, a first input port for providing polarized light to the block and an output port configured to receive polarized light from the block. The depolarizer optionally includes a non-reciprocal combination-device having a principal direction and including a first birefringent wedge, a second birefringent wedge, and a non-reciprocal rotating element. The non-reciprocal rotating element can be a Faraday rotator. The birefringent block can be optically coupled to the non-reciprocal combinatoin device. The optical depolarizer can include a lens that is optically coupled to the first wedge. The optical depolarizer can include a capillary for holding at least a PM optical fiber and an output optical fiber.

REFERENCES:
patent: 5546219 (1996-08-01), Iida
patent: 5933555 (1999-08-01), Shen
patent: 6574015 (2003-06-01), Tselikov et al.
patent: 6628461 (2003-09-01), Huang et al.
patent: 6765670 (2004-07-01), Olsson et al.
patent: 6813397 (2004-11-01), Lin
patent: 2003/0053209 (2003-03-01), Chang et al.

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