Tunable optical filter

Details Tunable optical filter Tunable optical filter

G - Physics

02

F

G02F 1/19 (2006.01) G02F 1/01 (2006.01) G02F 1/025 (2006.01) H01S 5/12 (2006.01) H01S 5/50 (2006.01)

Patent

CA 2101411

A tunable optical filter for use in wavelength division multiplexing systems. The optical filter contains a plurality of tunable reflection gratings which block all of the channels in the incoming lightwave. An electrode or a heating element is provided for each reflection grating to tune the reflection gratings so that their reflection bands do not coincide with a desired channel or channels thereby allowing the desired channel or channels to pass through the filter.

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