Power transport through the local guided modes and power loss by reflection and radiation in highly multimodal tapered dielectric waveguides is analyzed by a simplified coupled mode theory. Comparison with geometrical optics shows a very good agreement for long tapers. Application of tapered highly multimodal channel waveguides in PCBs is discussed.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.