Patent ID: 8778451
Filing Date: 2014-07-15
Classification: G02B

Abstract:
1. A method of manufacturing an optical waveguide, comprising: forming a core having a pattern on a surface of an under cladding layer; and forming an over cladding layer so as to cover the core by using a mold including a cavity having a mold surface complementary in shape to the over cladding layer, wherein the forming of the over cladding layer includes: wherein the mold is made of a light-transmissive resin, wherein the mold is produced by placing a mold member in a mold production container, the mold member including a protruding portion identical in shape to the over cladding layer and a ridge portion provided around the protruding portion, filling the container with a light-transmissive resin, curing the light-transmissive resin, then taking the cured light-transmissive resin out of the container, and removing the mold member from the cured light-transmissive resin, whereby a hollow resulting from the removal of the protruding portion serves as the cavity for the formation of the over cladding layer, and a hollow resulting from the removal of the ridge portion serves as the groove configured to collect the part of the photosensitive resin spilling out of the cavity.