Abstract
Using computer simulation, we investigate an optical wave formation in optical fiber with cubic nonlinear response under the influence of time dispersion of nonlinear response. We show possibility of attosecond pulses train formation at the shock wave front. This train takes place if time dispersion of nonlinear response influences significantly on laser pulse propagation in optical fiber. The influence of frequency modulation is considered as well. Our analysis is based on original transformation of well-known generalized nonlinear Schrodinger equation with temporal derivation from nonlinear response. For computer simulation we use conservative difference schemes, which allow us to make simulation with big accuracy.
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