120 GSa/s BiCMOS Analog Multiplexer Enabling 360 Gbit/s DSCM-PCS-256QAM IM/DD Transmission

Generation of real-valued digital-subcarrier-multiplexed PCS-256QAM is demonstrated using a 120 GSa/s BiCMOS analog multiplexer. A record per-modulation-dimension spectral efficiency of 3 bit/s/Hz is achieved supporting a net data rate of 360 Gbit/s after 10 km IM/DD transmission.