title: Schrödinger equation with a spatially and temporally random potential: effects of cross-phase modulation in optical communication.
abstract: We model the effects of cross-phase modulation in frequency (or wavelength) division multiplexed optical communications systems, using a Schrödinger equation with a spatially and temporally random potential. Green's functions for the propagation of light in this system are calculated using Feynman path-integral and diagrammatic techniques. This propagation leads to a non-Gaussian joint distribution of the input and output optical fields. We use these results to determine the amplitude and timing jitter of a signal pulse and to estimate the system capacity in analog communication.
authors.affiliation: Theoretical Physics, Oxford University, United Kingdom.
authors.forename: A G
authors.initials: AG
authors.lastname: Green
authors.forename: P B
authors.initials: PB
authors.lastname: Littlewood
authors.forename: P P
authors.initials: PP
authors.lastname: Mitra
authors.forename: L G L
authors.initials: LG
authors.lastname: Wegener