We discuss, with illustrations, some physical significances of fifth-order nonlinear susceptibility for pulse dynamics in monomode optical fibres. The amplitude dynamic governing equation is the cubic-quintic nonlinear Schrödinger equation, (CQNLSE), which has soliton properties similar to the cubic nonlinear Schrödinger equation, (CNLSE), based on solutions by a variational method. Some differ...

Small quantum fluctuations in solitons described by the cubic–quintic nonlinear Schrödinger equation (CQNLSE) are studied within the linear approximation. The cases of both self-defocusing and self-focusing quintic terms are considered (in the latter case, the solitons may be effectively stable, despite the possibility of collapse). The numerically implemented back-propagation method is used to...

Recent observations of droplets in dipolar and binary Bose–Einstein condensate (BEC) gives motivation to study the theory droplet formation detail. Specifically, authors are interested investigating possibility a quasi-1D geometry. have suggested that stabilized by competition between effective mean-field beyond interaction. Hence, it is possible map equation motion cubic-quartic nonlinear Schr...

We investigate the statistics of flat-top solitary wave parameters in the presence of weak multiplicative dissipative disorder. We consider first propagation of solitary waves of the cubic-quintic nonlinear Schrödinger equation (CQNLSE) in the presence of disorder in the cubic nonlinear gain. We show by a perturbative analytic calculation and by Monte Carlo simulations that the probability-dens...

Abstract Dark pulse mode-locked Erbium doped fiber laser (EDFL) was demonstrated in this work by employing side polished (SPF) coated with Ti3AlC2 solution using drop casting method. The modulation depth of fabricated SPF characterized at 2.2%. This structure allowed the formation dark improved birefringence and nonlinearity EDFL. generated cubic-quintic nonlinear Schrödinger equation (CQNLSE) ...