OPTICAL WAVEGUIDE AND METHOD FOR PRODUCING THE SAME

摘要

Disclosed is an optical waveguide which is obtained by sequentially arranging a first cladding layer, a patterned core layer and a second cladding layer on a base in this order. In this optical waveguide, the core layer has a height of not less than 20 µm, and the curing ratio of the second cladding layer within 10 µm from the outer periphery of the core layer is not less than 95%. This optical waveguide uses a resin for forming optical waveguides and has uniform core and claddings, while being excellent in transparency and heat resistance. Also disclosed is a method for producing such an optical waveguide with excellent productivity.