Variable optical attenuator

Details Variable optical attenuator Variable optical attenuator

G - Physics

02

B

G02B 26/02 (2006.01) G02B 5/22 (2006.01)

Patent

CA 2344113

A variable optical attenuator of the multiple-aperture type is disclosed. The attenuator comprises a thin element having a plurality of apertures therein. The plurality of apertures is arranged such that the size of most of the apertures increases along a distance of the thin element. In particular, the plurality of apertures is arranged in a carefully designed pattern wherein the percentage of transmitted light varies from one end of the pattern to the other. The variable optical attenuator is substantially wavelength and polarization independent.

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