We present the results of the spectral analysis of intense ultrashort laser pulses propagating through nonlinear transparent media. We discuss the spectral features characteristic of the self-phase-modulation process, which is the most prominent process during nonguided propagation in the weakly nonlinear regime. We describe an application of automatic pulse phase retrieval based on the Kerr-like nonlinearity.
© 1996 Optical Society of America
E. T. J. Nibbering, M. A. Franco, B. S. Prade, G. Grillon, J.-P. Chambaret, and A. Mysyrowicz, "Spectral determination of the amplitude and the phase of intense ultrashort optical pulses," J. Opt. Soc. Am. B 13, 317-329 (1996)