Patent ID: 8415090
Filing Date: 2013-04-09
Classification: G02B

Abstract:
1. A production method of an optical waveguide for a connector comprising: forming an under-cladding layer on a surface of a substrate; forming a core in a crossing pattern on a surface of the under-cladding layer; forming an over-cladding layer formation photosensitive resin layer over the core comprised of a photosensitive resin composition containing an organic solvent for adjustment of viscosity; performing a heat treatment at a temperature of 70° C. to 130° C. to form a mixed layer of a mixture of a core material and a photosensitive resin layer material in an interface between the core and the photosensitive resin layer; exposing a part of the photosensitive resin layer by irradiation with radiation to form an over-cladding layer from the exposed part; and removing the substrate from the under-cladding layer to provide a film-shaped optical waveguide connector including the under-cladding layer, the core, the mixed layer and the over-cladding layer.