Beam propagation analysis of non-linear tapers

Abstract

The beam propagation method implemented in a tapered co-ordinate system is used to analyse a nonlinear taper structure. The results obtained are compared with the ones computed using the standard beam propagation algorithm in the rectangular co-ordinate system. In all analysed cases the novel approach: the tapered beam propagation method, allows calculation of the field distribution and the field overlap at the end of the structure faster and using less computer memory.