Analytical model for the coupling constant of a directional coupler in terms of slab waveguides

Yann G. Boucher

doi:10.1117/1.OE.53.7.071810

13 January 2014 Analytical model for the coupling constant of a directional coupler in terms of slab waveguides

Yann G. Boucher

Author Affiliations +

Optical Engineering, Vol. 53, Issue 7, 071810 (January 2014). https://doi.org/10.1117/1.OE.53.7.071810

Abstract

We present an analytical model for a generic two-wave directional coupler, in the conceptual frame of coupled single-mode planar (slab) waveguides. The modal relation of dispersion is expressed exactly under a matrix form. In the simplest symmetric configuration, the lift of degeneracy between the propagation constants of the even (slow) and odd (fast) supermodes is the exact image of the coupling constant.

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Yann G. Boucher "Analytical model for the coupling constant of a directional coupler in terms of slab waveguides," Optical Engineering 53(7), 071810 (13 January 2014). https://doi.org/10.1117/1.OE.53.7.071810

Published: 13 January 2014

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