Modelling of optical pulse propagation in Kerr and Raman nonlinear dispersive media using GVADE - TLM method

Abstract

In this paper, we propose a simulation model of electromagnetic wave's propagation in dispersive media using Transmission Line Matrix method with the symmetrical condensed node (SCN - TLM) and novel voltage sources. The proposed model, named GVADE- TLM, allows the simulation of optical pulses propagation in nonlinear optical medium, by solving Maxwell's equation and the polarization current density. The model is applied to problems where the electric field is not constrained to a single vector component. The scattering matrix characterizing the SCN with the new voltage sources is provided and the numerical results are compared with those of the literature or with the theoretical ones.