title: Multi-channel nonlinearity compensation of PDM-QPSK signals in dispersion-managed transmission using dispersion-folded digital backward propagation.
abstract: We demonstrate nonlinearity compensation of 37.5-GHz-spaced 128-Gb/s PDM-QPSK signals using dispersion-folded digital-backward-propagation and a spectrally-sliced receiver that simultaneously receives three WDM signals, showing mitigation of intra-channel and inter-channel nonlinear effects in a 2560-km dispersion-managed TWRS-fiber link. Intra-channel and adjacent inter-channel nonlinear compensation gains when WDM channels are fully populated in the C-band are estimated based on the GN-model.
authors.forename: Cen
authors.initials: C
authors.lastname: Xia
authors.forename: Xiang
authors.initials: X
authors.lastname: Liu
authors.forename: S
authors.initials: S
authors.lastname: Chandrasekhar
authors.forename: N K
authors.initials: NK
authors.lastname: Fontaine
authors.forename: Likai
authors.initials: L
authors.lastname: Zhu
authors.forename: G
authors.initials: G
authors.lastname: Li