Title :
Finite element based beam propagation modal solution of optical waveguide problems
Author :
Obayya, S.S.A. ; Rahman, B.M.A. ; Grattan, K.T.V.
Author_Institution :
Dept. of Syst. Eng., Brunel Univ., Uxbridge, UK
Abstract :
In this paper, the problem of the accurate calculation of the full vectorial modes in general optical waveguides is addressed. Based on the versatile finite element method, an imaginary axis beam propagation method (IDVFEBPM) is formulated as a means for an efficient and elegant mode solver. The high numerical accuracy of the proposed modal analysis is demonstrated through the analysis of different linear, complex and leaky modes in 3D optical waveguides.
Keywords :
finite element analysis; modal analysis; optical waveguides; waveguide discontinuities; imaginary distance beam propagation method; leaky modes; modal analysis; mode solver; optical waveguide bend; optical waveguides; versatile finite element beam propagation method; Boundary conditions; Finite element methods; Integrated optics; Modal analysis; Nonlinear optics; Optical devices; Optical losses; Optical propagation; Optical waveguides; Rectangular waveguides;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1339074