Arrayed waveguide grating (AWG) on an integrated optics chip

摘要

The invention provides a chip for separating light into different wavelengths. The chip includes a substrate, an input waveguide, an optical arrangement, and a plurality of output waveguides. The substrate has first and second edge sections. The input waveguide is formed on the substrate and has an end for providing light thereto located at the first edge section. The input waveguide extends from the first end thereof in a first direction. The optical arrangement receives the light from the input waveguide and separates the light into a pattern of light of different wavelengths. The output waveguides are formed on the substrate. Each output waveguide receives light of a respective wavelength from the optical arrangement and transmits the light. Each output waveguide has an end, from which the light is transmitted, located at the second edge section. Each output waveguide extends to the second end thereof in a second direction. The second direction is different from the first direction.