Patent ID: 9213214
Filing Date: 2015-12-15
Classification: G02B,G02F,H04Q

Abstract:
1. An optical path-changing device having one or more curved waveguides, comprising: a first waveguide formed in a shape of straight line; a second waveguide configured to branch from the first waveguide in a first direction and formed in a shape of curved line; a third waveguide configured to intersect the first waveguide and meet an end of the second waveguide, and formed in a shape of straight line; a first reflector arranged in a region in which the second waveguide branches from the first waveguide; and a first controller configured to control a refractive index of the first reflector, wherein the first reflector selectively transmits light or an optical signal to the first waveguide or the second waveguide depending on a change in the refractive index of the first reflector controlled by the first controller.