Dynamics of the Optical Pulse in a Nonlinear Medium: Approach of Moment Method Coupled with the ....
In this paper, we used the moment method to investigate the evolution of pulse parameters in a nonlinear medium using the nonlinear Schrodinger equation. The effects of cubic nonlinear and nonlinear dispersion terms on the soliton were represented using this mathematical model. The moment method produces variational equations, which are numerically integrated using the fourth order Runge-Kutta method. The obtained results show variations in several important pulse parameters, including energy, pulse position, frequency shift, chirp, and width. It shows how the nonlinear dispersion and nonlinear cubic terms affect each pulse parameter. The moment method is useful for studying the dynamics of an optical pulse in a nonlinear medium using the nonlinear Schrodinger equation as a model.
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