This article is cited in 3 papers

Integral optics

Electromagnetic waves in an optical photonic lattice

O. V. Korovay

Taras Shevchenko Transnistria State University, Tiraspol

Abstract: Laser light propagation in a photonic lattice consisting of two parallel waveguide arrays is theoretically studied using the coupled mode method, with the interaction of each waveguide with the nearest neighbours and between the waveguides of the arrays being taken into account. Analytical expressions are obtained that make it possible to accurately predict the presence of localisation of light depending on the coupling constants. Particular solutions of a system of coupled waves are found, which describe strongly localised light propagating without transverse diffraction along the entire lattice at certain values of the coupling constants. The emergence of spatially limited transverse diffraction of light is predicted.

Keywords: photonic lattice, waveguide array, localised light, coupled mode method.

Received: 30.04.2020
Revised: 20.08.2020

 English version: Quantum Electronics, 2020, 50:12, 1146–1154

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