OPTIK, vol.242, 2021 (SCI-Expanded)
Soliton theory has wide application in nonlinear physics fields with the inclusion of fluid dynamics, nonlinear fiber optics, plasma physics, and optics; thus, it has attracted much attention from researchers for the past few decades [1-3]. There are many mathematical models for propagation of soliton in the literature such as nonlinear Schro center dot dinger's equation [4,5], Chen-Lee-Liu equation [6], Schro center dot dinger-Hirota equation [7], Kundu-Eckhaus equation [8,9], Sasa-Satsuma equation [10-12], Manakov model [13,14], Kundu-Mukherjee-Naskar equation [15]. The gist of this paper is to examine the following perturbed and generalized RKL equations, given as. In this paper, the following perturbed and generalized RKL equations are considered, given as ( { iut+alpha uxx+beta F|u|2) ( } u=i sigma ux+i lambda F|u|2) {(|u|2)} ux + i mu Fxu - i gamma uxxx,