Abstract

The equations describing the propagation dynamics of optical pulses consisting of several electrical field cycles and pulses with spectrum bandwidth comparable with the central frequency are presented. The numerical simulation of nonlinear optical phenomena observed in isotropic media with pumping by the pulses with the spectrum in area of the normal group dispersion is carried out. The spectrum ultrabroadening of a short pulse with the temporal broadening, the self-induced changes of the pulse polarization, the simultaneous generation of several Stokes, anti-Stokes components, the third harmonic and sum and difference frequencies generation with self-phase and cross- phase modulation are considered.

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