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Kvantovaya Elektronika, 2014, Volume 44, Number 12, Pages 1119–1128 (Mi qe16080)  

This article is cited in 5 scientific papers (total in 5 papers)

Metamaterials

Modulation instability in a zigzag array of nonlinear waveguides with alternating positive and negative refractive indices

A. A. Dovgiy

National Engineering Physics Institute "MEPhI", Moscow

Abstract: The modulation instability is analytically investigated in a zigzag array of tunnel-coupled optical waveguides with alternating refractive indices and Kerr nonlinearity. Particular solutions to a system of coupled nonlinear equations are found. They describe the propagation of electromagnetic waves that are uniform along the waveguide and their instability is studied. It is shown that the coupling coefficient between the waveguides, which are non-nearest neighbours, has a significant effect on the instability of the waves in question. When the coupling coefficient exceeds a certain threshold, the modulation instability disappears regardless of the radiation power. The influence of the ratio of the wave amplitudes in adjacent waveguides to the instability of the particular solutions is studied. Different variants of the nonlinear response in waveguides are considered. The studies performed present a new unusual type of the modulation instability in nonlinear periodic systems.

Keywords: modulation instability, tunnel-coupled waveguides, optical lattice, discrete diffraction, negative refraction, forward and backward waves, reciprocal lattice vector, instability increment.

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English version:
Quantum Electronics, 2014, 44:12, 1119–1128

Bibliographic databases:

PACS: 42.65.Wi, 81.05.Xj
Received: 02.04.2014
Revised: 28.04.2014

Citation: A. A. Dovgiy, “Modulation instability in a zigzag array of nonlinear waveguides with alternating positive and negative refractive indices”, Kvantovaya Elektronika, 44:12 (2014), 1119–1128 [Quantum Electron., 44:12 (2014), 1119–1128]

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  • http://mi.mathnet.ru/eng/qe/v44/i12/p1119

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    Citing articles on Google Scholar: Russian citations, English citations
    Related articles on Google Scholar: Russian articles, English articles

    This publication is cited in the following articles:
    1. Dovgiy A.A. Besedin I.S., Phys. Rev. E, 92:3 (2015), 032904  crossref  mathscinet  adsnasa  isi  elib  scopus
    2. Zhang J., J. Opt. Soc. Am. B-Opt. Phys., 33:8 (2016), 1702–1708  crossref  isi  elib
    3. Maimistov A.I., Odyssey of Light in Nonlinear Optical Fibers: Theory and Applications, eds. Porsezian K., Ganapathy R., Crc Press-Taylor & Francis Group, 2016, 409–434  isi
    4. J. Zhang, J. Mod. Opt., 64:17 (2017), 1717–1724  crossref  isi  scopus
    5. Yao Ying-bo, Xie Jia-yu, Yin Fen-fen, Tang Bing, Acta Photonica Sinica, 48:8 (2019), UNSP 0819001  crossref  isi  scopus
  • Квантовая электроника Quantum Electronics
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