title: Control and generation of drifting patterns by asymmetrical Fourier filtering.
abstract: We report the theoretical and experimental demonstration of one-dimensional drifting patterns generated by asymmetrical Fourier filtering in the transverse plane of an optical feedback system with a Kerr type nonlinearity. We show, with good agreement between our theoretical (analytics and numerics) calculations and experimental observations that at the primary instability threshold the group velocity is always different from zero. Consequently, the system is convective at this threshold, then exhibits drifting patterns.
authors: Univ. Lille, CNRS, UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, F-59000 Lille, France.
authors: E
authors: E
authors: Louvergneaux
authors: Univ. Lille, CNRS, UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, F-59000 Lille, France.
authors: V
authors: V
authors: Odent
authors: Univ. Lille, CNRS, UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, F-59000 Lille, France.
authors: S
authors: S
authors: Coulibaly
authors: INLN, Université de Nice-Sophia Antipolis, CNRS, 1361 route des Lucioles, 06560 Sophia Antipolis, France.
authors: U
authors: U
authors: Bortolozzo
authors: INLN, Université de Nice-Sophia Antipolis, CNRS, 1361 route des Lucioles, 06560 Sophia Antipolis, France.
authors: S
authors: S
authors: Residori