Waveguide-based detection system with scanning light source

G - Physics – 02 – B

Patent

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G02B 6/35 (2006.01) G01N 21/64 (2006.01)

Patent

CA 2759396

The invention provides methods and devices for generating optical pulses in one or more waveguides using a spatially scanning light source. A detection system, methods of use thereof and kits for detecting a biologically active analyte molecule are also provided. The system includes a scanning light source, a substrate comprising a plurality of waveguides and a plurality of optical sensing sites in optical communication with one or more waveguide of the substrate, a detector that is coupled to and in optical communication with the substrate, and means for spatially translating a light beam emitted from said scanning light source such that the light beam is coupled to and in optical communication with the waveguides of the substrate at some point along its scanning path. The use of a scanning light sources allows the coupling of light into the waveguides of the substrate in a simple and cost-effective manner.

L'invention porte sur des procédés et des dispositifs pour générer des impulsions optiques dans un ou plusieurs guides d'ondes à l'aide d'une source de lumière à balayage spatial. L'invention porte également sur un système de détection, des procédés d'utilisation de celui-ci et des nécessaires de détection d'une molécule de substance à analyser biologiquement active. Le système comprend une source de lumière à balayage, un substrat comportant une pluralité de guides d'ondes et une pluralité de sites de détection optique en communication optique avec un ou plusieurs guides d'ondes du substrat, un détecteur qui est couplé au substrat et en communication optique avec celui-ci, et un moyen de translation spatiale d'un faisceau de lumière émis par ladite source de lumière à balayage de telle manière que le faisceau de lumière est couplé aux guides d'ondes du substrat, et en communication optique avec ceux-ci, en un certain point le long du chemin de balayage. L'utilisation de sources de lumière à balayage permet le couplage de lumière dans les guides d'ondes du substrat d'une manière simple et rentable.

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