Patent ID: 6108480
Filing Date: 2000-08-22
Classification: G02B

Abstract:
An optical device comprising an optical waveguide formed on a substrate to be optically coupled with an optical fiber mounted on said substrate, said optical device comprising:a first layer formed on said substrate and comprising a first resist against an etchant used in etching of said substrate;a second layer formed on said first layer and comprising a second resist against dry etching, said first and said second layers being patterned into patterned first and patterned second layers in the form of a groove-sculpturing mask pattern used in etching said substrate; anda groove formed on said substrate by etching said substrate with said patterned first layer used as a mask;said optical waveguide formed on said substrate being optically coupled with said optical fiber mounted in said groove formed on said substrate in exact alignment with an optical axis of said optical fiber.