Stabilization of multi-beam necklace solitons in circular arrays with spatially modulated nonlinearity
arXiv:0910.2926 · doi:10.1103/PhysRevA.80.053816
Abstract
We address 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.
13 pages, 4 figures, to appear in Physical Review A
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Cited by in corpus (6)
- Light propagation and localization in modulated photonic lattices and waveguides
- Odd-petal states and persistent flows in spin-orbit-coupled Bose-Einstein condensates
- Vortex solitons in twisted circular waveguide arrays
- Necklace Beam Generation in Nonlinear Colloidal Engineered Media
- Modulation instability of structured-light beams in negative-index metamaterials
- Positive and necklace solitary waves on bounded domains