Bidirectional optical wavelength multiplexer and demultiplexer

H - Electricity – 04 – J

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H04J 14/02 (2006.01) G02B 6/34 (2006.01)

Patent

CA 2329727

(57) Abstract A bidirectional optical wavelength multiplexer/divider for simultaneously multiplexing and dividing light is characterized in that an array of light waveguides includes a center waveguide provided on the boundary face between the array and a planar waveguide region at a position where light coming from a light waveguide array grid and incident on the planar waveguide region is focused, and light multiplexed into wavelengths through the center waveguide is inputted or outputted. In addition to the light waveguides, the center waveguide where multiplexed light is inputted or outputted is provided at such a position that the spectra outputted from the light waveguides are not influenced, and therefore division and multiplexing of light wavelength are simultaneously possible in the direction from one array of light waveguides to the other and in the opposite direction.

Un répartiteur/multiplexeur bidirectionnels en longueurs d'onde pour le multiplexage et la répartition de la lumière simultanés, se caractérise en ce qu'un groupe de guides d'onde optique comporte un guide d'ondes central prévu sur la face limitrophe entre le groupe et une région de guides d'onde plans, dans un endroit où la lumière provenant d'un réseau de guides d'ondes lumineuses et incidente par rapport à la région de guides d'onde plans est concentrée, et où la lumière multiplexée en longueurs d'ondes par le guide d'ondes central est entrée ou sortie. Outre les guides d'ondes lumineuses, le guide d'ondes central dans lequel la lumière multiplexée est entrée ou sortie est prévu dans un endroit dans lequel les spectres sortis par les guides d'ondes lumineuses ne sont pas influencés, la répartition et le multiplexage de la longueur d'ondes lumineuses étant ainsi possibles simultanément, dans un sens, d'un groupe de guides d'ondes lumineuses à l'autre, et dans le sens opposé.

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