%0 Journal Article
%T A Novel Three-Dimensional Wide-Angle Beam Propagation Method Based on Split-Step Fast Fourier Transform<br>
%A ZANG Wei-Ping
%A CHENG Hua
%A TIAN Jian-Guo
%A <br>
%J 中国物理快报
%D 2009
%I 
%X A novel three-dimensional wide-angle beam propagation method based on the split-step fast Fourier transform is developed. The formulation is based on the three-dimensional Helmholtz wave equation. Each propagation step is performed by utilizing both the FFT and split-step scheme. The solution of Helmholtz wave equation does not make the slowly varying envelope and one-way propagation approximations. To validate the efficiency and accuracy, numerical results for a propagation beam in a tilted step-index optical waveguide are compared with other beam propagation algorithms.
%K 42
%K 25
%K Bs
%K 02
%K 30
%K Nw
%K 42
%K 82
%K Et<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=C3FCF2D168098637BDB5F62542EA87EE&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=0B39A22176CE99FB&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0