Method and apparatus for a bragg grating tunable filter

Details Method and apparatus for a bragg grating tunable filter Method and apparatus for a bragg grating tunable filter

G - Physics

02

B

G02B 5/00 (2006.01)

Patent

CA 2557180

The present invention relates to tunable filters. More specifically, the present invention pertains to a method and apparatus that allows tuning of a wavelength over a large optical band. The disclosed system and method allows an arbitrary wavelength selection of an incoming beam of light. The disclosed system and method may be used in imaging systems like telescopes or microscopes, or for point sources like laser or optical fibers. Further, in the case of optical fibers, it may be used as an add/drop filter.

L'invention concerne des filtres réglables, et plus précisément un procédé et un système permettant le réglage d'une longueur d'onde sur une bande optique étendue. Le système et le procédé considérés offrent une sélection de longueur d'onde arbitraire pour faisceau lumineux entrant. On peut les utiliser dans des systèmes d'imagerie comme les télescopes ou les microscopes, ou bien pour des sources ponctuelles comme le laser ou les fibres optiques. S'agissant enfin des fibres optiques, le système est utilisable sous la forme d'un filtre d'insertion/extraction.

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