A mode-matching method is applied for precise numerical analysis of the propagation characteristics of a four-layer thin-film optical waveguide with a plano-convex layer, whose accurate description has been difficult so far. In the computation, the effects of the buffer layer on the dispersion relation and the field distribution for a few lower-order modes are investigated.
© 1982 Optical Society of America
Tokuo Miyamoto and Michiko Momoda, "Propagation characteristics of a multilayered thin-film optical waveguide with a buffer layer," J. Opt. Soc. Am. 72, 1163-1166 (1982)