Beam propagation analysis of the nonlinear tapered optical waveguide

摘要

A study of the transient behavior of nonlinear tapered optical waveguide is presented. The Fresnel equation with an input Gaussian field distribution is solved numerically using a combination of the semivectorial-polarized finite difference method and the Runge-Kutta method. The calculated results show that the tapered nonlinear waveguides have better wave-guiding characteristics in potential applications.