OPTICAL WAVEGUIDE DEVICE AND OPTICAL TRANSMISSION AND RECEPTION DEVICE, AND MANUFACTURE THEREOF

摘要

PROBLEM TO BE SOLVED: To provide the optical waveguide device and optical transmission and reception device which enables two-way communication by propagating light signals bidirectionally by using an optical waveguide formed on a substrate and their manufacture. SOLUTION: In an optical waveguide 15 at least nearby its one end side (side A), a grooved cut part 31a having border surfaces 16a and 17a is provided crossing a light propagation direction. Received signal which is propagated in the optical waveguide 15 from the other end side (side B) is reflected internally by the border surface 16a and exits from the flank of the optical waveguide 15. Transmitted light which is made incident on the end surface 18a on the side A of the optical waveguide 15 is transmitted through the border surface 17a and made incident on the border surface 16a. Even the optical waveguide formed on the substrate is able to send and receive light signals in two directions and the density of optical wiring can be made high.