Coupled-mode theory for parallel waveguides is extended to include systems with multimode guides. The basic set of coupled differential equations is similar to that for single-mode guides, but the matrices are more broadly defined to allow for coupling among all the modes. Cases of anisotropic dielectric waveguides and/or an anisotropic embedding medium are also considered.
© 1986 Optical Society of America
Original Manuscript: July 2, 1986
Manuscript Accepted: August 21, 1986
Published: November 1, 1986
Amos Hardy, William Streifer, and Marek Osiński, "Coupled-mode equations for multimode waveguide systems in isotropic or anisotropic media," Opt. Lett. 11, 742-744 (1986)