New optical soliton solutions for Fokas-Lenells dynamical equation via two various methods

摘要

In this paper, we examine the Fokas-Lenells equation (FLE) that depicts the promulgation of ultra-short pulsation in visual fibers while confirming the terms of the following asymptotic arrangement beyond those indispensable for the nonlinear Schrodinger equation. In addition the model includes both spatio-temporal dispersal and self-steepening terms. Then, we discuss deep visual solutions of the FLE via taking the modified Kudryashov method and the extended tanh expansion method.