Patent ID: 6556735
Filing Date: 2003-04-29
Classification: G02B

Abstract:
An optical integrated module comprising a rectangular optical waveguide platform on which an input optical waveguide and an output optical waveguide are respectively formed toward the longitudinal direction and an optical waveguide device which is mounted on said optical waveguide platform between said input optical waveguide and the output optical waveguide, and is brought into optical coupling with said input optical waveguide and the output optical waveguide, characterized in that said input optical waveguide, the output optical waveguide and the optical waveguide device are disposed in such a positional relationship that certain limited gaps are provided between said input optical waveguide and said optical waveguide device, and between said output optical waveguide and said optical waveguide device respectively so that discontinued portions of optical waveguides are formed between them, and said input optical waveguide, the optical waveguide device and the output optical waveguide respectively comprise portions which are respectively bent at a gentle curvature to such an extent that radiation of optical signals to be guided can be sufficiently ignored, and adjacent parts of said input optical waveguide, the output optical waveguide, and the optical waveguide of said optical waveguide device which is brought into optical coupling with these optical waveguides are bent in the same direction in the vicinity of said discontinuity of the optical waveguide with respect to a straight line in the longitudinal direction of said optical waveguide platform to comprise angled facet structure, and said optical waveguide platform comprises an optical fiber aligning guide for aligning an optical fiber to optically couple the optical signals into the input optical waveguide and the output optical waveguide.