We report the exact solution of the scalar-wave equation for a rectangular-core waveguide structure and develop a perturbation analysis for evaluating accurately the propagation characteristics of practical integrated-optical structures. We show that the present method gives results that are more accurate than other analytical methods reported earlier.
© 1983 Optical Society of America
Arun Kumar, K. Thyagarajan, and A. K. Ghatak, "Analysis of rectangular-core dielectric waveguides: an accurate perturbation approach," Opt. Lett. 8, 63-65 (1983)