Quasi-stationary non-Kerr law optical solitons

This paper studies optical solitons and its perturbations that is governed by the generalized nonlinear Schrodinger's equation with non-Kerr law nonlinearities. The quasi-stationarity is applied, for the first time, to the non-Kerr law nonlinearity and an approximate solution is obtained. A few special cases of the non-Kerr law nonlinearities are considered. The study is conducted with nonlinear damping and saturable amplifiers which are treated as perturbation terms. Finally, the paper concludes with, some numerical results. (C) 2003 Elsevier Inc. All rights reserved.