Thin film optical waveguides

G - Physics – 02 – B

Patent

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G02B 6/12 (2006.01) G02B 6/122 (2006.01) G02B 6/138 (2006.01)

Patent

CA 2430404

An optical waveguide comprising a first polymeric layer and a second polymeric layer adjacent to the first polymeric layer and a method for making the optical waveguide are disclosed. The first polymeric layer has a refractive index of n1 and solubility S1 in a first solvent. The second polymeric layer has a refractive index of n2 and solubility S2 in the first solvent. In the optical waveguide, n1.noteq.n2 and S1/S2 is at least 5.

L'invention concerne un premier guide d'ondes optique comprenant une première couche polymère et une seconde couche polymère adjacente à ladite première couche, ainsi qu'un procédé d'élaboration du guide d'ondes optique. La première couche présente un indice de réfraction de n¿1? et une solubilité S¿1? dans un premier solvant. La seconde couche polymère présente un indice de réfraction de n¿2? et une solubilité S¿2? dans le premier solvant. Dans le guide d'ondes optique, n¿1?.noteq.n¿2? et S¿1?/S¿2? sont au moins égaux à 5.

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