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.
| Original language | English |
|---|---|
| Pages (from-to) | 161-163 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 13 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 1988 |