Abstract
We examine coupled-mode theory in the very-weak-coupling limit and show that in multiwaveguide systems with dissimilar waveguides the overlap integrals of the recent, more-sophisticated theory should be included to ensure accurate solutions. Using the old theory in this limit may lead to errors reaching 100% in calculated coupling length.
© 1988 Optical Society of America
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Amos Hardy, William Streifer, and Marek Osinski, "Weak coupling of parallel waveguides: erratum," Opt. Lett. 13, 428-428 (1988)https://opg.optica.org/ol/abstract.cfm?uri=ol-13-5-428
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