Optical path-changing device having curved waveguide

Abstract

In accordance with the present invention, there is provided an optical path-changing device having one or more curved waveguides, which not only can change an optical path at a large angle close to a perpendicular direction after light or an optical signal has been incident and reflected, but also can change the optical path in various directions, such as for straight pass, left turn, and right turn. An optical path-changing device having one or more curved waveguides according to an embodiment of the present invention includes a first waveguide (11) formed in a straight line. A second waveguide (12) is configured to branch from the first waveguide in a first direction and formed in a shape of curved line. A first reflector (21) is arranged in a region in which the second waveguide branches from the first waveguide.