Advanced Receiver Design enables PDM-16QAM DWDM Transmission over 2660 km of SSMF with Only EDFA

We demonstrate experimental DWDM PDM-16QAM transmission at 200 Gb/s over 2660 km of SSMF, using EDFA-only amplification and advanced DSP techniques, including powerful digital predistortion, iterative carrier recovery and decoding using 50% OH soft-decision FEC.