Wavelength division multiplexer/demultiplexer optical device

G - Physics – 02 – B

Patent

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Details

G02B 6/293 (2006.01) G02B 6/12 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2320357

Optical signal devices and methods of forming the same in which a substrate is provided with a pair of spaced apart cladding layers made of a material having a first refractive index, having sandwiched therebetween a core layer including a pair of waveguides having a second refractive index greater than the first refractive index and a grating region including a filter extending through the core and cladding layers for causing a single wavelength of light of a multiple wavelength light source to be segregated therefrom.

La présente invention concerne des dispositifs à signaux optiques et leurs procédés de formation, dispositifs dans lesquels on fournit un substrat présentant une paire de couches de revêtement espacées constituées par un matériau possédant un premier indice de réfraction, entre lesquelles est prise en sandwich une couche centrale comprenant une paire de guides d'ondes possédant un second indice de réfraction supérieur au premier, et une zone réseau de diffraction comprenant un filtre qui s'étend à travers la couche centrale et les couches de revêtement, de manière à isoler une longueur d'onde dans une source lumineuse à longueurs d'ondes multiples.

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