Multi-mode arrayed waveguide grating demultiplexer with single-mode performance and few-mode-fiber interfaces

We demonstrate an arrayed waveguide grating (AWG) demultiplexer for 3-mode few-mode fiber that obtains single-mode performance using spatial-diversity techniques and hybrid-integration. It comprises a silica AWG, and 3D-waveguide mode multiplexers and a remapping network.