We present an experiment in which an ultrashort pulse train propagates resonantly through an optically 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 ø=0[2π] between two successive pulses propagates with important temporal distortion, whereas a sequence with ø=π[2π] 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.
© 2003 Optical Society of America
M. Jacquey, S. Bonhommeau, and M. A. Bouchene, "Experimental demonstration of phase control of dispersion effects for an ultrashort pulse train propagating in a resonant medium," Opt. Lett. 28, 1272-1274 (2003)