title: Intra-channel nonlinearity compensation for PM-16 QAM traffic co-propagating with 28 Gbaud m-ary QAM neighbours.
abstract: We quantify the benefits of intra-channel nonlinear compensation in meshed optical networks, in view of network configuration, fibre design aspect, and dispersion management. We report that for a WDM optical transport network employing flexible 28Gbaud PM-mQAM transponders with no in-line dispersion compensation, intra-channel nonlinear compensation, for PM-16QAM through traffic, offers significant improvements of up to 4dB in nonlinear tolerance (Q-factor) irrespective of the co-propagating modulation format, and that this benefit is further enhanced (1.5dB) by increasing local link dispersion. For dispersion managed links, we further report that advantages of intra-channel nonlinear compensation increase with in-line dispersion compensation ratio, with 1.5dB improvements after 95% in-line dispersion compensation, compared to uncompensated transmission.
authors.affiliation: Photonic Systems Group, Tyndall National Institute, University College Cork, Ireland. danish.rafique.ext@nsn.com
authors.forename: Danish
authors.initials: D
authors.lastname: Rafique
authors.forename: Stylianos
authors.initials: S
authors.lastname: Sygletos
authors.forename: Andrew D
authors.initials: AD
authors.lastname: Ellis
mesh_terms: D016477:Artifacts; D003195:Computer Communication Networks / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D017711:Nonlinear Dynamics; D055096:Optical Devices; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*