Zhou, QinMoshokoa, Seithuti P.Ullah, Malik ZakaTriki, HouriaBiswas, AnjanBelic, Milivoj2022-11-032022-11-032017-11Yaşar, E. vd. (2017). ''Perturbed dark and singular optical solitons in polarization preserving fibers by modified simple equation method''. Superlattices and Microstructures, 111, 487-498.0749-6036https://doi.org/10.1016/j.spmi.2017.07.004https://www.sciencedirect.com/science/article/pii/S0749603617315082http://hdl.handle.net/11452/29356This 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.eninfo:eu-repo/semantics/closedAccessPhysicsModified simple equation methodPerturbationSolitonsAnti-cubic nonlinearityKerr law mediaSpatiotemporal dispersionSchrodingers equationConservation-lawsNonlinear equationsPerturbation techniquesNonlinear opticsCubic lawsIntegration schemeModified simple equation methodNon-linear fiberOptical solitonPeriodic solutionPerturbationSingular soliton solutionsArticle0004157688000532-s2.0-85023637513487498111Physics, condensed matterDarkness; Media Law; Periodic Solution