Title :
Fast-Fourier-based three-dimensional full-vectorial beam propagation method
Author :
López-Doña, J.M. ; Wangüemert-Pérez, J.G. ; Molina-Fernández, I.
Author_Institution :
Dept. de Ingenieria de Comunicaciones, Univ. de Malaga, Spain
Abstract :
An accurate and highly efficient fast-Fourier-based full-vectorial beam propagation method (BPM) with perfectly matched layer absorbing boundary conditions is presented. Full vectorial results obtained for highly guiding z-variant structures, such as a spot size converter and a Y-branch in rib technology, show that accurate results can be obtained with reduced computational effort, thus making this technique an interesting alternative to other existing BPM strategies.
Keywords :
fast Fourier transforms; integrated optics; light propagation; optical waveguide theory; Y-branch; boundary conditions; fast-Fourier-based beam propagation method; full-vectorial beam propagation method; highly guiding z-variant structures; perfectly matched layer; rib technology; spot size converter; three-dimensional beam propagation method; Boundary conditions; Circuits; Dielectrics; Differential equations; Discrete Fourier transforms; Fourier series; Moment methods; Optical propagation; Perfectly matched layers; Permittivity; Beam propagation method (BPM); Fourier series; Galerkin method; discrete Fourier transforms;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.857618
