Patent ID: 7569168

Claim:
A method of producing a polymer optical waveguide, the method comprising: preparing a core-forming mold having a concave portion corresponding to at least one optical waveguide core; bringing a concave side of the core-forming mold into close contact with a first flat substrate; filling a core-forming curable resin into the concave portion by suction and/or by utilizing a capillary phenomenon; curing the core-forming curable resin to form an optical waveguide core; removing the optical waveguide core from the core-forming mold and the first flat substrate; preparing a clad-forming mold having a concave portion corresponding to an optical waveguide clad; bringing the clad-forming mold into close contact with a second flat substrate having the optical waveguide core, which has been removed from the core-forming mold and the first flat substrate, disposed thereon so that the optical waveguide core is contained in the concave portion of the clad-forming mold; filling a clad-forming curable resin into a hollow space in the concave portion of the clad-forming mold by suction and/or by utilizing a capillary phenomenon, the hollow space consisting of the space between the clad-forming mold and the second flat substrate not filled by the optical waveguide core; curing the clad-forming curable resin; and removing the cured clad-forming curable resin containing the optical waveguide core from the clad-forming mold and the second flat substrate.