Compact 100-Gb/s DP-QPSK intradyne coherent receiver module employing Si waveguide

We report 100-Gb/s DP-QPSK pICR module that employs a Si photonics chip with polarization beam splitters. We achieved a Q-value of 12 dB at signal input power of -10 dBm with optical signal to noise ratio of 18 dB.