Patent ID: 7302138
Filing Date: 2007-11-27
Classification: G02B

Abstract:
1. An arrayed waveguide grating (AWG) device, comprising: (a) an AWG member; (b) a taper multimode interference (MMI) coupler deposing between a second flat waveguide of said AWG member and a first output waveguide of said AWG member; and (c) a taper optical attenuator deposing amidst said first output waveguide, wherein said AWG member comprises: (a) a first input waveguide (b) a first flat waveguide connected to an end of said first input waveguide at an end of said first flat waveguide; (c) an array waveguide connected to another end of said first flat waveguide at an end of said array waveguide; (d) a second flat waveguide connected to another end of said array waveguide at an end of said second flat waveguide; and (e) a first output waveguide connected to another end of said second flat waveguide at an end of said first output waveguide, wherein the tapered sidewalls of the taper multimode interference (MMI) coupler extend from the second input waveguide to the first output waveguide.