title: Analytical solution for a linearly graded-index-profile planar waveguide.
abstract: An analytical solution is presented for the TE modes of a planar waveguide structure comprising a high-index guiding layer and a buried layer with a profile such that the square of the index varies linearly and matches the substrate and high-index guiding layer. The electric-field profiles and the dispersion relation are obtained and discussed, and a solution by the WKB method is compared.
authors.forename: T
authors.initials: T
authors.lastname: Touam
authors.forename: F
authors.initials: F
authors.lastname: Yergeau