Nonlinear optics

Localization of electromagnetic waves in a zigzag lattice of waveguides with competing cubic and quintic nonlinear responses

E. V. Kazantseva, A. I. Maimistov

National Engineering Physics Institute "MEPhI", Moscow, Russia

Abstract: The zigzag waveguide array is considered, where even waveguides are composed of optically linear material, and their nearest neighbors are characterized by positive cubic nonlinearity and negative fifth-order nonlinearity. In the continuum (long-wave) approximation the solutions of the system of coupled wave equations are found, which describe waves localized in the lattice and harmonic propagating waves.

Keywords: nonlinear waves, discrete photonics, waveguides, solitons.

Received: 31.08.2022
Revised: 03.09.2022
Accepted: 06.09.2022

DOI: 10.21883/OS.2022.11.53776.4074-22

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