Experimental demonstration of phase control of dispersion effects for an ultrashort pulse train propagating in a resonant medium.
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.
Jacquey
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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.
Bonhommeau
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Bouchene
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