Array waveguide grating and method of manufacture thereof

G - Physics – 02 – B

Patent

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G02B 6/12 (2006.01) G02B 5/18 (2006.01) G02B 6/34 (2006.01)

Patent

CA 2362653

The present invention relates to an array waveguide grating and a method of manufacture thereof, in which a substantially smooth wavelength--loss characteristics is obtained in a pass band, rather than increasing the loss. In an array waveguide grating (10), wavelength multiplex division signal light is demultiplexed by a channel waveguide array (15), reflected by a Fabry-Perot resonator array (16), and passed through the channel waveguide array (15) again, so that a substantially smooth wavelength-loss characteristic is obtained in the pass band, rather than increasing the loss.

L'invention concerne une grille de guide d'ondes en réseau et un procédé de fabrication associé. On obtient, dans une bande passante une longueur d'onde lisse contre une caractéristique de perte, plutôt qu'une augmentation de la perte. Dans une grille (10) de guide d'ondes, la lumière du signal multiplex à division de longueur d'onde est démultiplexée par un réseau de guide d'ondes à canal (15), réfléchie par un réseau de résonateur Fabry-Pérot (16), et traverse une nouvelle fois le réseau de guide d'ondes à canal (15), on obtient ainsi une longueur d'onde sensiblement lisse contre une caractéristique de perte dans une bande passante, plutôt qu'une augmentation de la perte.

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