Miniature magneto-optic fiber optical switch

Details Miniature magneto-optic fiber optical switch Miniature magneto-optic fiber optical switch

2005-09-13

2005-09-13

Bovernick, Rodney (Department: 2874)

Optical waveguides

With optical coupler

Switch

C359S490020, C359S484010, C359S281000, C385S011000

Reexamination Certificate

active

06944363

ABSTRACT:
An optical switch uses a walk-off crystal together with a Wollaston prism, a Faraday rotator, and a halfwave plate pair and a single collimating lens of one multiple-fiber pigtail for both input and output optical beams. In one embodiment, an input beam enters the device through one port of a tri-fiber pigtail, and a switched beam exits the device through a second or third port of the same tri-fiber pigtail, depending on a state of the Faraday rotator. All three beams use the same pigtail and collimating lens.

REFERENCES:
patent: 5724165 (1998-03-01), Wu
patent: 6173092 (2001-01-01), Bergmann
patent: 6360034 (2002-03-01), Chang
patent: 6707960 (2004-03-01), Li et al.
patent: 6795245 (2004-09-01), Xiao

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