We have discussed the perturbed Gerdjikov-Ivanov (pGI) equation describing optical pulse
propagation (PP) with perturbation effects, which has various applications in optical fibers …

In this paper, we investigate the modulation instability and the dynamics of solitary waves in
a higher-order nonlinear Schrödinger equation. We use a powerful and robust method …

The aim of this work is to produce the effect of optical soliton cooling with polynomial law of
nonlinear refractive index. This is achieved by the aid of soliton perturbation theory. In this …

Abstract Objective: New generalized Schrödinger equations with polynomial nonlinearities
are considered. The Cauchy problem for these equations cannot be solved by the inverse …

The current study is dedicated to furnish a class of bright soliton and dark soliton solutions
for the (3+ 1)-dimensional hyperbolic nonlinear Schrödinger equation. In this direction we …

In this work, a two coupled nonlinear Schrödinger equation (CNLSE) which is applicable to
high birefringence fibers is investigated. We operate a variety of ansatze to derive a variety …

The perturbed nonlinear Schrödinger–Hirota equation with spatio-temporal dispersion
(PNSHE-STD) which governs the propagation of dispersive pulses in optical fibers, is …

In this paper, a more general form of unstable nonlinear Schrödinger equation which
describe the time evolution of disturbances in marginally stable or unstable media is studied …

This course of research is dedicated to Biswas–Milovic (BM) model with variable coefficients
comprising Kerr law and damping effect. More precisely, Biswas–Milovic (BM) equation is …

We analytically study the exact solitary wave solutions of the perturbed nonlinear Biswas–
Milovic equation with Kudryashov's law of refractive index, which describes the propagation …