100Gb/s WDM NRZ-PM-QPSK long-haul transmission experiment over installed fiber probing non-linear reach with and without DCUs

We present an experiment of WDM 100Gb/s coherent NRZ-PM-QPSK transmission over 16 spans of installed SSMF. We used variable span loss, with and without optical dispersion compensation, to investigate maximum non-linear reach.