Characterization of ultra-short pulses by cross-phase modulation

Abstract : We present an improved iterative algorithm which allows to reconstruct the temporal pulse profile, phase and absolute intensity of ultra-short laser pulses from a set of cross-phase-modulated spectra. The changes in the centre of gravity of the recorded spectra allow to reconstruct the intensity autocorrelation independently of the phase retrieval algorithm. Ambiguity problems encountered in a previous scheme are eliminated.
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Michel Franco, Hans Lange, Jean-François Ripoche, Bernard Prade, André Mysyrowicz. Characterization of ultra-short pulses by cross-phase modulation. Optics Communications, Elsevier, 1997, 140 (4), pp.331-340. ⟨10.1016/S0030-4018(97)00201-0⟩. ⟨hal-00465606⟩

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