Analytical soliton solutions for the cubic–quintic nonlinear Schrödinger equation with Raman effect in the nonuniform management systems

摘要: Based on the Kundu–Eckhaus equation with variable coefficients, exact one-soliton and two-soliton solutions have been explicitly given by an appropriate similarity transformation method. As example, exponential distributed fiber control system, nonlinearity management system dispersion considered, propagation characteristics of soliton in three nonuniform systems investigated detail. Especially, dynamic properties amplitude, pulse width central position transmission distance studied. The results some guiding significance for amplification, compression management, can provide theoretical analysis carrying out optical communication experiment.