Propagation of solitons in thermal media with periodic nonlinearity

Abstract

We address the existence and properties of solitons in layered thermal media made of alternating focusing and defocusing layers. Such structures support robust bright solitons even if the averaged nonlinearity is defocusing. We show that non-oscillating solitons may form in any of the focusing domains, even in those located close to the sample edge, in contrast to uniform thermal media where light beams always oscillate when not launched exactly on the sample center. Stable multipole solitons may include more than four spots in layered media.

12 pages, 3 figures, to appear in Optics Letters

References in corpus (5)

• Lie symmetries and solitons in nonlinear systems with spatially inhomogeneous nonlinearities
• Two-dimensional multi-pole solitons in nonlocal nonlinear media
• Stability of two-dimensional spatial solitons in nonlocal nonlinear media
• Multipole vector solitons in nonlocal nonlinear media
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Cited by in corpus (3)

• Families of fundamental and multipole solitons in a cubic-quintic nonlinear lattice in fractional dimension
• Quadratic fractional solitons
• Bubbles and W-shaped solitons in Kerr media with fractional diffraction