Patent ID: 7916992

Claim:
A method of manufacturing an optical waveguide comprising a core portion allowing propagation of light and a clad portion placed to surround the core portion, the method comprising: bonding a first lamination film comprising a first base film, a first clad layer formed on the first base film, and a core portion formed on the first clad layer and having a higher refractive index than the first clad layer, with a second lamination film comprising a second base film, and a second clad layer formed on the second base film in such a way that the core portion of the first lamination film and the second clad layer of the second lamination film face each other with a curable resin layer for clad formation interposed therebetween, the core portion having a convex shape; and curing the curable resin layer for clad formation interposed between the first lamination film and the second lamination film.