Adjustable optical attenuator

Details Adjustable optical attenuator Adjustable optical attenuator

2007-12-04

2007-12-04

Healy, Brian M. (Department: 2883)

Optical waveguides

Accessories

Attenuator

C385S025000, C385S036000, C385S034000

Reissue Patent

active

10324028

ABSTRACT:
An optical attenuator for attenuating a collimated beam of light propagating along an optical path while preserving the composition of polarization of the collimated beam of light is disclosed. The optical attenuator comprises a beam attenuator for attenuating a portion of the collimated beam of light when a portion of the beam attenuator is disposed within the optical path. The beam attenuator has a cross section along a plane perpendicular to the direction of propagation of the collimated beam of light of the portion of the attenuator in the shape of a wedge. The attenuation is varied using a controller for moving the beam attenuator in order to vary a size of the portion of the wedge within the optical path.

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patent: 2202308 (1997-10-01), None
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patent: 4-317009 (1992-11-01), None
Canadian PTO Office Action, Sep. 8, 2003.

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