An Integrated Optic Front End for Polarization Diversity Reception.
01 January 1990
An integrated optic circuit on silicon, which can be used in balanced polarization diversity detection, is demonstrated. The device consists of a 3 dB coupler and two polarization splitters. It has excess losses of 1.8 and 3.0 dB for TM and TE polarizations, respectively, and around -20 dB rejection of the unwanted polarizations at each output.