Patent ID: 6791675
Filing Date: 2004-09-14
Classification: G02B

Abstract:
An optical waveguide path coupling structure where a first optical waveguide path including a first core layer and a second optical waveguide path including a second core layer are optically coupled, wherein;said first optical waveguide path arranged on an optical device chip, which has a first cross section formed such that said first core layer is exposed as an oblique plane with a slight angle at an end portion and a second cross section formed in an approximately vertical direction to said first cross section at a position apart from said first cross section by a predetermined distance, and a second optical waveguide path arranged on a base substrate, which has a first cross section formed such that said second core layer is exposed as an oblique plane with a slight angle at an end portion and a second cross section formed in the approximately vertical direction to said first cross section at a position apart from said first cross section by a predetermined distance, are coupled by aligning said first cross sections and said second cross sections.