title: A family of Nyquist pulses for coherent optical communications.
abstract: A new family of Nyquist pulses for coherent optical single carrier systems is introduced and is shown to increase the nonlinearity tolerance of dual-polarization (DP)-QPSK and DP-16-QAM systems. Numerical investigations for a single-channel 28 Gbaud DP-16-QAM long-haul system without optical dispersion compensation indicate that the proposed pulse can increase the reach distance by 26% and 19%, for roll-off factors of 1 and 2, respectively. In multi-channel transmissions and for a roll-off factor of 1, a reach distance increase of 20% is reported. Experimental results for DP-QPSK and DP-16-QAM systems at 10 Gbaud confirm the superior nonlinearity tolerance of the proposed pulse.
authors.affiliation: Department of Electrical and Computer Engineering, McGill University, Montreal, Quebec, H3A 2A7, Canada. benoit.chatelain@mail.mcgill.ca
authors.forename: Benoît
authors.initials: B
authors.lastname: Châtelain
authors.forename: Charles
authors.initials: C
authors.lastname: Laperle
authors.forename: Kim
authors.initials: K
authors.lastname: Roberts
authors.forename: Mathieu
authors.initials: M
authors.lastname: Chagnon
authors.forename: Xian
authors.initials: X
authors.lastname: Xu
authors.forename: Andrzej
authors.initials: A
authors.lastname: Borowiec
authors.forename: François
authors.initials: F
authors.lastname: Gagnon
authors.forename: David V
authors.initials: DV
authors.lastname: Plant