Optical coupler

G - Physics – 02 – B

Patent

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Details

G02B 6/293 (2006.01) G02B 6/34 (2006.01)

Patent

CA 2215078

A device for coupling out of or into a transmission system which carries light signals is provided. A first optical fibre having a Bragg grating therein has its cladding optically coupled to a second optical fibre having a Bragg grating therein so as to allow at least a predetermined wavelength of light incident upon the first Bragg grating to be forward coupled from the core to the cladding and then to the core region of the second optical waveguide via the second Bragg grating.

Dispositif de couplage à la sortie ou à l'entrée d'un système de transmission de signaux lumineux. Une première et une deuxième fibres optiques à réseau de Bragg sont couplées optiquement au niveau de la gaine afin de permettre à au moins une longueur d'onde prédéterminée d'une lumière incidente frappant le premier réseau de Bragg de passer du coeur à la gaine, puis au coeur du deuxième guide optique par l'intermédiaire du deuxième réseau de Bragg.

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