Obtaining optical soliton solutions of the cubic–quartic Fokas–Lenells equation via three different analytical methods

In this study, we have focused on finding soliton solutions of the cubic–quartic Fokas–Lenells equation, which models nonlinear pulse transmission through optical fiber, is a pretty new and updated model. The main motivation study to produce with previously unused methods for data in fiber optic cables together developing technology, has been used very frequently today. We three different efficient analytical methods, namely, Sinh–Gordon expansion method, enhanced modified extended tanh method unified Riccati equation method. By modifying our proposed using it effectively, obtained much more solutions. supported results 3D surface, 2D contour plots solutions, such as singular, periodic, periodic-singular, dark M-shaped solitons. originality propose that never before. With innovation solitons, are rarely obtainable waves. On other hand, provided us extra As last most important part, order examine physical behaviors, investigated effect coefficient fourth dispersion parameter wave propagation by presenting graphical representation.