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.
© 2005 IEEE
Maxim V. Eliseev, Andrey G. Rozhnev, and Alexander B. Manenkov, "Guided and Leaky Modes of Complex Waveguide Structures," J. Lightwave Technol. 23, 2586- (2005)