Coupled-mode theory for corrugated optical waveguides
- 15 May 1990
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 15 (11) , 619-621
- https://doi.org/10.1364/ol.15.000619
Abstract
A new derivation of the coupled-mode equations and coupling coefficient for the troublesome but important case of the Bragg reflection of TM guided waves in a corrugated, planar optical waveguide is presented. The technique solves the (approximate) wave equation directly and clarifies those features of the analysis that are essential to treat the problem correctly.Keywords
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