The generalized higher-order nonlinear Schrödinger equation: Optical solitons and other solutions in fiber optics

• Published in: International journal of modern physics. B, Condensed matter physics, statistical physics, applied physics Vol. 37; no. 18
• Main Authors: Younas, Usman, Baber, M. Z., Yasin, M. W., Sulaiman, T. A., Ren, Jingli
• Format: Journal Article
• Language: English
• Published: Singapore World Scientific Publishing Company 20.07.2023; World Scientific Publishing Co. Pte., Ltd
• Subjects: Electric fields; Fiber optics; Optical fibers; Phase modulation; Raman spectra; Rational functions; Schrodinger equation; Solitary waves; generalized exponential rational function method; generalized higher-order nonlinear Schrödinger equation; Optical solitons; Sardar subequation method
• ISSN: 0217-9792; 1793-6578
• DOI: 10.1142/S0217979223501746

In this study, generalized higher-order nonlinear Schrödinger equation is under consideration analytically. This equation is used in the field of slowly varying envelope of the electric field in the optical fiber with self-phase modulation, third-order dispersion, self-steepening and stimulated Raman scattering. For the sake of optical solitons and other solutions, we use two methods such as generalized exponential rational function (GERFM) and Sardar subequation method (SSEM). The solutions are gained in different forms such as bright, dark, singular, combo solitons, as well as hyperbolic, trigonometric and rational solutions. Some of the acquired wave solutions are characterized graphically in 3D, contour forms and 2D shapes to illustrate the dynamical behavior. A comparable analysis of this study with the available consequences in literature confirms the innovation and assortment of present accomplished wave solutions and hence enhances the great performance of the employed techniques. The offered method can be utilized to assist complicated models applicable to a wide variety of physical situations. We hope that a wide spectrum of engineering model professionals will find this study to be beneficial.