SIMPLE MODELS OF THREE COUPLED PT -SYMMETRIC WAVE GUIDES ALLOWING FOR THIRD-ORDER EXCEPTIONAL POINTS

SIMPLE MODELS OF THREE COUPLED PT -SYMMETRIC WAVE GUIDES ALLOWING FOR THIRD-ORDER EXCEPTIONAL POINTS

We study theoretical models of three coupled wave guides with a <em>PT</em>-symmetric distribution of gain and loss. A realistic matrix model is developed in terms of a three-mode expansion. By comparing with a previously postulated matrix model it is shown how parameter ranges with good...

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Bibliographic Details
Main Authors: Jan Schnabel, Holger Cartarius, Jörg Main, Günter Wunner, Walter Dieter Heiss
Format: Article
Language:English
Published: CTU Central Library 2017-12-01
Series:Acta Polytechnica
Subjects:
optical wave guides, third-order exceptional point, matrix model
Online Access:https://ojs.cvut.cz/ojs/index.php/ap/article/view/4423

Internet

https://ojs.cvut.cz/ojs/index.php/ap/article/view/4423

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