Patent ID: 7603021

Claim:
An optical waveguide module comprising: an optical fiber component comprising a housing block having a groove on a surface thereof and an optical fiber fixed onto said housing block, in which an end face of said optical fiber and an end face of said housing block are in approximately the same plane, the housing block having a collecting portion which collects excess adhesive within an adhesive-fixing area of said housing block, the collecting portion having a concave lower surface such that the collection portion has a semicircular shape in cross section, an optical waveguide substrate having optical waveguides thereon, wherein guiding grooves are formed on said optical waveguide substrate, one of ends of said guiding grooves are opposed to end faces of said optical waveguides, and the other ends of said guiding grooves are on an end face of said optical waveguide substrate, wherein a bottom surface of said optical fiber is supported by said groove of said housing block, and a top surface of said optical fiber being opposite to said bottom surface of said optical fiber in which said top surface of said optical fiber is exposed from said groove, wherein the top surface of said optical fiber is fixed onto said housing block with an adhesive in the adhesive-fixing area of said housing block, and the bottom surface of said optical fiber is supported by said groove in a non-adhesive-fixing area of said housing block, and wherein the top surface of said optical fiber in the non-adhesive fixing area of said housing block is supported by said guiding grooves of said optical waveguide substrate.