Transmission of 8×520 Gb/s signal based on single band/λ PDM-16QAM-OFDM on a 75-GHz grid

We reported the transmission of 8×520 Gbit/s PDM-16QAM-OFDM over SMF and EDFA-only link. It is the first time to realize single band/λ 400G net rate OFDM signal transmission.