Stabilization of multibeam necklace solitons in circular arrays with spatially modulated nonlinearity

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Title:	Stabilization of multibeam necklace solitons in circular arrays with spatially modulated nonlinearity
Author:	Kartashov, Yaroslav; Malomed, B A; Vysloukh, Victor A.; Torner Sabata, Lluís
Other authors:	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. FOTONICA - Grup de Recerca de Fotònica
Abstract:	We consider necklace solitons supported by circular waveguide arrays with out-of-phase modulation of nonlinearity and linear refractive index. Such two-dimensional necklace solitons appear as rings of multiple out-of-phase bright spots. We show that necklace solitons are stable if their peak intensity is low or moderate and that the domain of stability shrinks with increasing nonlinearity modulation depth. However, we find that the stability domains expand with increasing number of necklace spots.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica -Photonics -Optical communications -Fotònica -Comunicacions òptiques
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Document type:	Article - Published version Article
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