Patent ID: 7768697
Filing Date: 2010-08-03
Classification: H01S,H04B

Abstract:
1. An arrayed waveguide grating comprising: an input waveguide for transmitting a multiplexed optical signal having n wavelength channels; a waveguide array having a first end optically coupled to a first slab waveguide and a second end optically coupled to a second slab waveguide, the first slab waveguide for receiving the multiplexed optical signal from the input waveguide, the second slab waveguide for focusing n demultiplexed sub-signals of the multiplexed optical signal to n separate locations; and, a plurality of multi-mode output waveguides optically coupled to the second slab waveguide, each multi-mode output waveguide having a width selected to collect a plurality of the demultiplexed sub-signals.