title: Investigation of gain ripple in two-pump fiber optical parametric amplifiers.
abstract: By using the four-sideband theory, we analyze the gain spectrum in wideband two-pump fiber optical parametric amplifiers and predict gain ripples over the flat gain region. We derive an approximation of their pseudo-periods and discuss methods for reducing their amplitudes.
authors.affiliation: Institute of Advanced Telecommunications, Swansea University, Singleton Park, Swansea, Wales, UK. a.vedadi@swansea.ac.uk
authors.forename: Armand
authors.initials: A
authors.lastname: Vedadi
authors.forename: Michel E
authors.initials: ME
authors.lastname: Marhic
authors.forename: Eric
authors.initials: E
authors.lastname: Lantz
authors.forename: Hervé
authors.initials: H
authors.lastname: Maillotte
authors.forename: Thibaut
authors.initials: T
authors.lastname: Sylvestre