Modulation of spatial propagation dynamics in a three-core linear directional coupler

Indranil Bayal; Bibhas Kumar Dutta; Pradipta Panchadhyayee; Prasanta Kumar Mahapatra

doi:10.1117/1.OE.52.5.054003

22 May 2013 Modulation of spatial propagation dynamics in a three-core linear directional coupler

Indranil Bayal, Bibhas Kumar Dutta, Pradipta Panchadhyayee, Prasanta Kumar Mahapatra

Author Affiliations +

Optical Engineering, Vol. 52, Issue 5, 054003 (May 2013). https://doi.org/10.1117/1.OE.52.5.054003

Abstract

A new class of three-core linear directional coupler is demonstrated, in which the centers of the cross-section of the waveguides (WGs) form the vertices of a triangle. Gaussian-type interaction is assumed to couple each WG directly to other WGs. By employing coupled mode equations under slowly varying envelope approximation, we numerically analyze the optical field dynamics in the three transmission channels. Under different parameter conditions, the coupler exhibits wide-ranging characteristics including nonadiabatic to adiabatic evolution of light transfer in versatile manners.

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Indranil Bayal, Bibhas Kumar Dutta, Pradipta Panchadhyayee, and Prasanta Kumar Mahapatra "Modulation of spatial propagation dynamics in a three-core linear directional coupler," Optical Engineering 52(5), 054003 (22 May 2013). https://doi.org/10.1117/1.OE.52.5.054003

Published: 22 May 2013

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