title: Accurate analysis of power coupling between two arbitrarily ended dielectric slab waveguides by the boundary-element method.
abstract: The boundary integral equations that are called guided-mode extracted integral equations are applied to the investigation of the power-coupling-properties between two arbitrarily ended dielectric slab waveguides. The integral equations derived in this paper can be solved by the conventional boundary-element method. The reflection and coupling coefficients of the guided wave, as well as the scattering power, are calculated numerically for the case of incident TE guided-mode waves. The results presented are checked by the energy conservation law and the reciprocity theorem. Numerical results are presented for several geometries of coupling, including systems with three-layered symmetrical and asymmetrical slab waveguides.
authors.affiliation: Department of Electronics and Computer Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan. chien@tnk.info.gifu-u.ac.jp
authors.forename: Dao Ngoc
authors.initials: DN
authors.lastname: Chien
authors.forename: Kazuo
authors.initials: K
authors.lastname: Tanaka
authors.forename: Masahiro
authors.initials: M
authors.lastname: Tanaka