Optical waveguide device and method for connecting optical waveguide and optical fiber using the optical waveguide device.

摘要

An optical waveguide device which can be connected with an optical fiber through a simple positioning adjustment. The optical waveguide device comprises a substrate (2), a first cladding (4) with a uniform thickness formed on the substrate, a core (8a) formed on the first cladding, a recognizable thin layer (6) formed on the first cladding on both sides of the core, and a second cladding (12) formed on the first cladding so as to cover the core. The thin layer (6) is parallel to the top surface of the substrate (2) and defines a reference plane which is substantially in the same plane as the bottom surface of the core. Connection of the optical waveguide device with the optical fiber is achieved by bringing the reference plane into contact with a plane which is in a predetermined relative position to the optical fiber and only making a planar positioning adjustment with the planes held in contact. <IMAGE>