A Polarization Splitter and Rotator and an Optical Demultiplexer for a Polarization-Diverse Silicon Photonic Receiver

We propose a polarization-diverse coarse wavelength division multiplex receiver. We measured the spectra of the polarization rotator and splitter as well as the demultiplexer for each polarization. The combined insertion loss and the crosstalk were less than 4.0 dB and -10 dB, respectively.