Applied Physics B

, Volume 95, Issue 1, pp 179–186 | Cite as

Higher-order surface solitons in one-dimensional Bessel optical lattices

Article

Abstract

We demonstrate the existence of higher-order solitons occurring at an interface separating two one-dimensional (1D) Bessel optical lattices with different orders or modulation depths in a defocusing medium. We show that, in contrast to homogeneous waveguides where higher-order solitons are always unstable, the Bessel lattices with an interface support branches of higher-order structures bifurcating from the corresponding linear modes. The profiles of solitons depend remarkably on the lattice parameters and the stability can be enhanced by increasing the lattice depth and selecting higher-order lattices. We also reveal that the interface model with defocusing saturable Kerr nonlinearity can support stable multi-peaked solitons. The uncovered phenomena may open a new way for soliton control and manipulation.

PACS

42.65.Tg 42.65.Jx 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Institute of Information OpticsZhejiang Normal UniversityJinhuaChina

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