Glass based 16 channels arrayed waveguide grating by ion exchange technique

Arrayed waveguide grating (AWG) with 16 channels, 100 GHz channel spacing was fabricated on silica glass substrate by using ion exchange technique. The minimum insertion loss is 26.18 dB with channel crosstalk below -4.13 dB and the channel uniformity is <2.55 dB. The AWG can function as demultiplexing but performance is low due to the existence error of ion exchange technique.