Efficient fiber nonlinearity mitigation in 50-GHz-DWDM transmission of 256-Gb/s PDM-16QAM signals by folded digital-back-propagation and channelized FBG-DCMs. - Xiang Liu 018; S. Chandrasekhar 001; Peter J. Winzer; Benoit Maheux-L; Guillaume Brochu; François Trépanier (OFC, 2014)