title: Intrachannel nonlinearity enhancement in polarization multiplexed phase modulated systems with differential detection.
abstract: We compare nonlinear impairments in phase-modulated transmission with and without polarization multiplexing. Using an analytic approach that enabled us to accurately predict the Q factor at the receiver, we show that, without polarization multiplexing, the differential receiver is insensitive to two-pulse cross phase modulation, whereas with polarization multiplexing two-pulse interaction between cross-polarized components causes significant performance degradation.
authors.affiliation: Department of Electrical and Information Engineering, via Gronchi 18, University of L’Aquila, 67100 L’Aquila, Italy. antonio.mecozzi@univaq.it
authors.forename: A
authors.initials: A
authors.lastname: Mecozzi
authors.forename: F
authors.initials: F
authors.lastname: Matera