Low-loss and broadband polarization splitter and rotator and its application in DWDM receiver

A broadband silicon PSR is presented with an insertion loss lower than ~0.7dB/0.3dB and crosstalk lower than 12.1dB/14.7dB for TE and TM mode respectively. By combining the PSR with AWG and Germanium PDs, an integrated polarization insensitive DWDM receiver is further demonstrated.