title: Modal behavior in single-mode slab waveguides consisting of inhomogeneous cores.
abstract: We present an analytical method for TE and TM modes in weakly guiding inhomogeneous single-mode slab waveguides. Based on our results, the modal behavior or propagation constants depend on index profiles of the waveguides. It is important to know how the modal behavior depends on the index profile in single-mode waveguides, because it determines wave-front characteristics of propagating modes.
authors.affiliation: Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka, Niigata Prefecture, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Sagawa
authors.forename: K
authors.initials: K
authors.lastname: Sakuda