title: Random coupling between groups of degenerate fiber modes in mode multiplexed transmission.
abstract: We study random coupling induced crosstalk between groups of degenerate modes in spatially multiplexed optical transmission. Our analysis shows that the average crosstalk is primarily determined by the wavenumber mismatch, by the correlation length of the random perturbations, and by the coherence length of the degenerate modes, whereas the effect of a deterministic group velocity difference is negligible. The standard deviation of the crosstalk is shown to be comparable to its average value, implying that crosstalk measurements are inherently noisy.
authors.affiliation: Dept. of Physical and Chemical Sciences, University of L’Aquila, 67100 L’Aquila, Italy. cristian.antonelli@univaq.it
authors.forename: Cristian
authors.initials: C
authors.lastname: Antonelli
authors.forename: Antonio
authors.initials: A
authors.lastname: Mecozzi
authors.forename: Mark
authors.initials: M
authors.lastname: Shtaif
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Winzer
mesh_terms: D016477:Artifacts; D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008962:Models, Theoretical; D013685:Telecommunications / Q000295:instrumentation*