Patent ID: 6085000
Filing Date: 2000-07-04
Classification: G02B

Abstract:
A wavelength division multiplexing optical device comprising:a waveguide substrate;a cladding layer formed on said waveguide substrate, said cladding layer having first and second end surfaces and first and second side surfaces;a first optical waveguide embedded in said cladding layer;a second optical waveguide embedded in said cladding layer and connected at one end thereof to an intermediate portion of said first optical waveguide;an insertion groove formed in said waveguide substrate and said cladding layer between said first side surface and said second side surface so as to extend across a connected portion of said first and second optical waveguides;a wide groove formed in at least said cladding layer so as to cover one end portion of said insertion groove and open to one of said first and second side surfaces;a wavelength selecting filter inserted in said insertion groove; anda wedge adapted to be driven into said insertion groove, for pressing said wavelength selecting filter on a wall surface of said insertion groove.