Patent ID: 8644714

Claim:
A multi-wavelength optical source generator comprising: a gain part generating a plurality of lights through a plurality of gain waveguides; a reflective part transmitting or reflecting lights provided from each of the plurality of gain waveguides according to a wavelength; and a multiplexing part multiplexing a plurality of lights transmitted and outputted through the reflective part, wherein each of the plurality of gain waveguides comprises: a core on a substrate; and a clad on the core, wherein the reflective part comprises a plurality of amorphous silicon waveguides that are optically coupled with the plurality of gain waveguides, respectively, wherein each of the plurality of amorphous silicon waveguides comprises: a silicon oxide layer on the substrate; a lower amorphous silicon clad layer on the silicon oxide layer; an amorphous silicon core on the lower amorphous silicon clad layer; and an upper amorphous silicon clad layer on the amorphous silicon core, wherein each of the plurality of amorphous silicon waveguides is formed with a ridge type waveguide, and wherein each of the plurality of amorphous silicon waveguides comprises a reflective Bragg diffraction grating region.