An iterative finite difference beam propagation method for modeling second-order nonlinear effects in optical waveguides
Resource
Journal of Lightwave Technology 16 (9): 1686-1693
Journal
Journal of Lightwave Technology
Journal Volume
16
Journal Issue
9
Pages
1686-1693
Date Issued
1998
Author(s)
Abstract
An iterative finite difference beam propagation method based on the Crank-Nicholson scheme is presented to simulate continuous wave (CW) second-order nonlinear effects in optical waveguides with the depletion of the pump wave taken into account. This method is an extension of the linear finite difference beam propagation method and preserves the same order of accuracy. Comparisons with the previously published explicit finite difference beam propagation method and the rectangular approximation method are presented. Quasi-phase matched difference frequency generation in AlGaAs and quasi-phase-matched second harmonic generation in LiNbO/sub 3/ are considered in the evaluation, showing that one iteration for the IFD-BPM is sufficient for the simulation with good accuracy and without increasing much computation time.
SDGs
Type
journal article