Passive optical attenuator

Details Passive optical attenuator Passive optical attenuator

G - Physics

02

B

G02B 26/02 (2006.01)

Patent

CA 2348112

A variable optical attenuator has a mirror facing an input waveguide end and an output waveguide end. A lens is mounted in the optical path between the waveguide ends and the mirror. The waveguide ends, mirror and lens are mounted on thermally expansible elements, and the position of the mirror with the lens relative to the waveguide ends is linearly displaceable by differential thermal expansion.

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