Open AccessA highly efficient beam propagation method for modeling step-index waveguides with tilt interface
Author(s) -
Yu He-Jun,
Xia Jin-Song,
Jinzhong Yu
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.1023
Subject(s) - beam propagation method , tilt (camera) , beam (structure) , waveguide , interface (matter) , optics , boundary value problem , scheme (mathematics) , finite difference method , boundary (topology) , index (typography) , computer science , materials science , refractive index , mathematical analysis , physics , geometry , mathematics , bubble , maximum bubble pressure method , world wide web , parallel computing
Based on a new finite-difference scheme and Runge-Kutta method together with transparent boundary conditions(TBCs), a novel beam propagation method to model step-index waveguides with tilt interfaces is presented. The modified scheme provides an precies description of the tilt interface of the nonrectangular waveguide structure, showing a much better efficiency and accuracy comparing with the previously presented formulas.