EPJ Web Conf.
Volume 139, 2017Nanophotonics and Micro/Nano Optics International Conference – NANOP 2016
|Number of page(s)||3|
|Published online||23 March 2017|
Coupled-Mode Theory derivation of the formal equivalence between a three-mode waveguide and a set of three mutually coupled single-mode waveguides
1 FOTON, Systèmes Photoniques, UMR CNRS 6082, Université de Rennes 1, 22305 Lannion, France
2 ENIB, Technopôle Brest-Iroise, CS 73862, 29638 Brest, France
* Corresponding author: firstname.lastname@example.org
Published online: 23 March 2017
The formal identification between a two-mode waveguide and a system of two mutually coupled single-mode waveguides stems from the symmetries of the evolution operator. When the gap tends to zero, the super-modes of the coupled system merge continuously into the modes of the multimode waveguide. For modelling purposes, it is very tempting to extend the analogy to three-mode waveguides (and beyond). But not without some precautions…
© The Authors, published by EDP Sciences, 2017
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