title: Cascaded Raman generation in optical fibers: influence of chromatic dispersion and Rayleigh backscattering.
abstract: We study experimentally the influence of chromatic dispersion and Rayleigh backscattering on cascaded Raman generation in silica optical fibers. Effects ranging from enhanced spectral broadening of the Stokes orders to generation of higher Stokes order at unexpected wavelengths are observed. Additionally, we show that four-wave-mixing processes can quench the noisy Rayleigh lasing lines generated in power Raman amplifiers. Our observations are confirmed by numerical simulations.
authors.affiliation: Service d'Optique et Acoustique, Université Libre de Bruxelles, 50 Av. F.D. Roosevelt, CP 194/5, B-1050 Brussels, Belgium. fdv@phy.auckland.ac.nz
authors.forename: Frédérique
authors.initials: F
authors.lastname: Vanholsbeeck
authors.forename: Stéphane
authors.initials: S
authors.lastname: Coen
authors.forename: Philippe
authors.initials: P
authors.lastname: Emplit
authors.forename: Catherine
authors.initials: C
authors.lastname: Martinelli
authors.forename: Thibaut
authors.initials: T
authors.lastname: Sylvestre