Adjustable optical attenuator

Details Adjustable optical attenuator Adjustable optical attenuator

G - Physics

02

B

G02B 26/02 (2006.01) G02B 6/26 (2006.01) G02B 6/35 (2006.01)

Patent

CA 2288290

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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