Ultra Compact Athermal 400G-FR4 Silicon Photonics Receiver with Polarization Diversity

We have successfully demonstrated an ultra-compact WDM 400G-FR4 ROSA module integrated with silicon photonics circuits operating at 53.125Gbaud PAM4 signal with a sensitivity of −6.0dBm optical modulation amplitude at KP4 Pre-FEC-BER=2.4e-4.