Chirped Self-similar Pulse Propagation in Cubic-quintic Media

Abstract

We consider nonlinear propagation of optical pulses in a cubic-quintic nonlinear medium wherein the pulse propagation is governed by the generalized nonlinear Schrodinger equation with varying dispersion, nonlinearity and gain/loss. Using the self-similar analysis, we present the generation of chirped bright solitons in the anomalous dispersion regime as well as the normal dispersion regime under the in∞uence of both cubic and quintic nonlinearity. We also flnd the necessary and su-cient condition for the existence of the resulting self-similar solitary pulses through the physical parameters of the governing systems. Furthermore, our results show that the chirped solitons can be nonlinearly compressed cleanly and e-ciently even in the presence of gain/loss.