title: Solitonlike pulse shortening in a femtosecond parametric amplifier.
abstract: We demonstrate numerically that simultaneous second-harmonic generation and moderate group-velocity mismatch can lead to spontaneous nonlinear shortening during parametric amplification. As an experimental proof we present the results of twofold self-compression of signal pulses in a beta-barium borate parametric amplifier pumped by either 40- or 80-fs pulses from a Ti:sapphire laser.
authors: S
authors: S
authors: Fournier
authors: R
authors: R
authors: López-Martens
authors: C
authors: C
authors: Le Blanc
authors: E
authors: E
authors: Baubeau
authors: F
authors: F
authors: Salin