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.
No takes yet. Share an insight, caveat, or question.
Hardy et al. (1988) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: