Title :
Guided and leaky modes of complex waveguide structures
Author :
Eliseev, Maxim V. ; Rozhnev, Andrey G. ; Manenkov, Alexander B.
Author_Institution :
Saratov State Univ., Russia
Abstract :
The guided and leaky modes of the optical waveguides (fibers) are analyzed by the finite-element method (FEM) with the integral boundary conditions. The initial equations are reduced to the algebraic general eigenvalue problem, which is solved by the Arnoldi algorithm. The mode dispersion characteristics, fields, and cutoff frequencies are calculated for several waveguide structures, including flat and multilayer fibers with different shapes of cross sections.
Keywords :
algebra; eigenvalues and eigenfunctions; finite element analysis; optical fibre dispersion; optical fibre losses; optical waveguide theory; Arnoldi algorithm; algebraic eigenvalue problem; complex waveguide structures; finite-element method; flat fibers; guided modes; integral boundary conditions; leaky modes; mode dispersion; multilayer fibers; optical fibers; optical waveguides; radiation losses; Biomedical optical imaging; Boundary conditions; Finite element methods; Geometry; Integral equations; Nonhomogeneous media; Optical fiber couplers; Optical fiber polarization; Optical fiber sensors; Optical waveguides; Arnoldi algorithm; finite-element method (FEM); flat and multilayer waveguides; numerical analysis; optical fibers;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.852027
