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
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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