Experimental Demonstration of Multi-Pilot Aided Carrier Phase Estimation for DP-64QAM and DP-256QAM

We present a statistical inference based multi-pilot aided CPE algorithm and analyze its performance via simulations. We experimentally verify LDPC coded back-to-back performance using 10 GBd DP-64QAM and DP-256QAM modulation, with transmitter and receiver linewidths of 100 kHz.