85.2-Tbit/s Coupled 4-Core Fiber Transmission over 3,120 km Using PS-16QAM Signals

We adopted probabilistic shaping (PS) to couple multicore fiber transmission to maximize the transmission capacity for the first time. By utilizing 152-WDM 24-Gbaud DP-PS-16QAM signals, 85.2-Tbit/s coupled four-core fiber transmission over 3,120 km was demonstrated.