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Optical Engineering

Modulation of spatial propagation dynamics in a three-core linear directional coupler
Author(s): Indranil Bayal; Bibhas Kumar Dutta; Pradipta Panchadhyayee; Prasanta Kumar Mahapatra
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Paper 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.

Paper Details

Date Published: 22 May 2013
PDF: 10 pages
Opt. Eng. 52(5) 054003 doi: 10.1117/1.OE.52.5.054003
Published in: Optical Engineering Volume 52, Issue 5
Show Author Affiliations
Indranil Bayal, Vidyasagar Univ. (India)
Bibhas Kumar Dutta, J. K. College (India)
Pradipta Panchadhyayee, P. K. College (India)
Prasanta Kumar Mahapatra, Vidyasagar Univ. (India)

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