Yasar, EmrullahYıldırım, YakupZhou, QinMoshokoa, Seithuti P.Ullah, Malik ZakaTriki, HouriaBiswas, AnjanBelic, Milivoj2024-11-152024-11-152017-07-010749-6036https://hdl.handle.net/20.500.14519/1063This paper obtains optical soliton solution to perturbed nonlinear Schrodinger's equation € by modified simple equation method. There are four types of nonlinear fibers studied in this paper. They are Anti-cubic law, Quadratic-cubic law, Cubic-quintic-septic law and Triple-power law. Dark and singular soliton solutions are derived. Additional solutions such as singular periodic solutions also fall out of the integration scheme.enAttribution-NonCommercial-ShareAlike 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-sa/4.0/SolitonsPerturbationModified simple equation methodArticle