Bright and dark optical solitons with time-dependent coefficients in a non-Kerr law media

This paper obtains the 1-soliton solution of the nonlinear Schrodinger's equations that governs the propagation of solitons through optical fibers. The study is conducted in presence of perturbation terms with non-Kerr law nonlinearity. The perturbation terms that are considered are third order dispersion, self-steepening and nonlinear dispersion. Both bright and dark soliton solutions are obtained. (C) 2010 Elsevier B.V. All rights reserved.