Patent ID: 7906355

Claim:
An optical waveguide device production method, comprising the steps of: mounting a light emitting/receiving element on an upper surface of a board; enclosing the mounted light emitting/receiving element with a mold; filling a core material in the mold and curing the core material to form a core body, whereby the light emitting/receiving element is sealed in the core body and an optical waveguide insertion recess of tapered slit shape for insertion of an optical waveguide having a longitudinally extending core layer sandwiched between band-shaped films serving as cladding layers and unitarily combined with the films and an optical coupling lens are unitarily formed in a portion of the core body opposed to a light emitting/receiving surface of the light emitting/receiving element; demolding the resulting product; and inserting one end of the optical waveguide into the optical waveguide insertion recess of the core body, and fixing the one end of the optical waveguide in the optical waveguide insertion recess in a state where the one of the optical waveguide being in contact with the optical coupling lens by sealing the one end of the optical waveguide with a resin.