Influence of neighbor channel modulation formats on 112 Gbit/s and 42.8 Gbit/s WDM coherent polmux-QPSK transmission systems

A detailed study of WDM transmission performance of 112 Gbit/s and 42.8 Gbit/s polarization multiplexed QPSK channels with coherent demodulation is performed by numerical simulation considering different neighbor channel formats and fiber types.