Optical solitons with dual-power law nonlinearity

Abstract:
The multiple-scale perturbation analysis is used to study optical solitons that are governed by the nonlinear Schrodinger's equation with dual-power law nonlinearity. The WKB type ansatz of the perturbed soliton captures the corrections to the pulse where the soliton perturbation theory fails. The perturbation terms that are considered here are nonlinear damping and saturable amplification.