Record 300 Gb/s per Channel 99 GBd PDM-QPSK Full C-Band Transmission over 20570 km using CMOS DACs

08 March 2020

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We demonstrate a record 300 Gb/s per-channel bitrate over 20570 km across the full C-band. The measured 41 channels are modulated with 99 GBd PDM-QPSK using CMOS DACs and optical pre-emphasis, avoiding nonlinear compensation.