Patent ID: 6731841
Filing Date: 2004-05-04
Classification: G02B

Abstract:
An optical device comprising:a substrate processed to form a main waveguide, and two forking waveguides, wherein the main waveguide goes around a curb so that the main waveguide is towards and coupled to the two forking waveguides, the curb possesses collectively near 180 degrees so that both of the main waveguide and the two forking waveguides end on one side of the substrate; wherein, when the optical device is used as a splitter, a signal coming through the main waveguide is split into two divided signals, each going through one of the two forking waveguides; and wherein, when the optical device is used as a combiner, two signals respectively coming through the two forking waveguides are merged into a signal going through the main waveguide.