title: Experimental demonstration of phase control of dispersion effects for an ultrashort pulse train propagating in a resonant medium.
abstract: We present an experiment in which an ultrashort pulse train propagates resonantly through anoptically dense vapor of atomic rubidium. The sequence obtained from a Fabry-Perot interferometer comprises nearly 10 regularly time-delayed and mode-locked pulses. We show that a sequence with phase shift phi = 0[2pi] between two successive pulses propagates with important temporal distortion, whereas a sequence with phi = pi[2pi] experiences few propagation effects, thus leading for the first time to our knowledge to the possibility of phase control of dispersion effects for an ultrashort pulse train.
authors.affiliation: Laboratoire de Collisions Agrégats Réactivité, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 5589, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 4, France.
authors.forename: M
authors.initials: M
authors.lastname: Jacquey
authors.forename: S
authors.initials: S
authors.lastname: Bonhommeau
authors.forename: M A
authors.initials: MA
authors.lastname: Bouchene