title: Near-degenerate cascaded four-wave mixing in an optical parametric amplifier.
abstract: Efficient generation of new spectral components owing to second-order cascading in a seeded broadband beta -barium borate typeI phase-matching parametric amplifier is demonstrated. One can vary the number and magnitude of these components by changing amplification bandwidth (wavelength) and phase-matching conditions. The phenomenon is treated theoretically by use of a formalism developed previously for the case of cascaded self-diffraction.
authors.forename: A
authors.initials: A
authors.lastname: Varanavi Ius
authors.forename: A
authors.initials: A
authors.lastname: Dubietis
authors.forename: A
authors.initials: A
authors.lastname: Berzanskis
authors.forename: R
authors.initials: R
authors.lastname: Danielius
authors.forename: A
authors.initials: A
authors.lastname: Piskarskas