Wavelength selective switch

H - Electricity – 04 – Q

Patent

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Details

H04Q 11/00 (2006.01) G02B 6/34 (2006.01) G02F 1/00 (2006.01)

Patent

CA 2486740

A wavelength selective switch is realized by combining a quantized dispersion element and an array of switching means. The quantized dispersion element enables to concentrate all the wavelengths within predetermined wavelength bands onto the same location in the switching array. With this arrangement, a low fill factor switching array can be used while maintaining good flat-top spectral performance with no spectral dips and improving alignment tolerances.

L'invention concerne un commutateur de sélection de longueur d'onde produit par combinaison d'un élément de dispersion quantifié et d'une matrice de moyens de commutation. L'élément de dispersion quantifié permet de concentrer toutes les longueurs d'ondes situées à l'intérieur de bandes de longueur d'onde prédéterminées sur un même emplacement de la matrice de commutation. Ce dispositif permet d'utiliser une matrice de commutation à faible facteur de forme tout en maintenant une performance spectrale satisfaisante à crête plate, ne comportant pas de chutes spectrales, et d'améliorer les tolérances en matière d'alignement.

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