A Compact 100G-ER4 ROSA Realized by Hybrid Integration of SOA and Lensed PIN-PDs for QSFP28 Transceivers

With hybrid integration of SOA and lensed PIN-PD chips on a silica-based AWG platform, we have developed a novel compact 100G-ER4 ROSA for QSFP28 transceivers with sensitivities below −27 dBm at a BER of 1×10 −12