Single and combined optical solitons with third order dispersion in Kerr media

The article studies the dynamics of single and combined optical solitons in perturbed nonlinear Schrodinger equation with third order dispersion and nonlinear dispersion term. It has been demonstrated that this equation admits a rich variety of exact solutions for a different range of five parameters. The solutions are of qualitatively different nature, depending on the parameters, which are soliton-type solutions, triangular-type solutions, doubly periodic-like solutions, single and combined non-degenerate Jacobi elliptic function like solutions. Additionally, the constraint conditions for the existence of the solutions are also listed. It is also noted that the Jacobi elliptic functions degenerate into combined optical solitons and combined periodic singular solutions in limiting case when modulus m approaches to 1 and 0, respectively. The reported results are new and interesting in the field of nonlinear optics. (C) 2016 Elsevier GmbH. All rights reserved.