Abstract

We embed a helical lattice into a portion of a bulk photorefractive medium to form a synthetic structure and numerically investigate the nonlinear transmission of a probe vortex beam in the structure. Numerical demonstrations confirm that the structure can stabilize multisoliton states in the form of nonrotating and nonexpanding necklacelike solitons. Lattice structure and the amplitude, width, and topological charge of the probe vortex beam can influence the structure of necklacelike solitons. Interestingly, an increase in beam intensity may lead to multiplication of the number of bright “spots.”

© 2019 Optical Society of America

Multipeaked fundamental and vortex solitons in azimuthally modulated Bessel lattices

Jiangbo Zheng and Liangwei Dong
J. Opt. Soc. Am. B 28(4) 780-786 (2011)

Gaussian-like and flat-top solitons of atoms with spatially modulated repulsive interactions

Liangwei Zeng and Jianhua Zeng
J. Opt. Soc. Am. B 36(8) 2278-2284 (2019)

Vortex solitons produced in spatially modulated linear and nonlinear refractive index waveguides

Si-Liu Xu, Milivoj R. Belić, Dong-Ping Cai, Li Xue, Jun-Rong He, and Jiaxi Cheng
J. Opt. Soc. Am. B 35(2) 410-416 (2018)

Composite vortex-ring solitons in Bessel photonic lattices

Yaroslav V. Kartashov, Lluis Torner, and Victor A. Vysloukh
J. Opt. Soc. Am. B 22(7) 1366-1370 (2005)

Experiments on Gaussian beams and vortices in optically induced photonic lattices

Zhigang Chen, Hector Martin, Anna Bezryadina, Dragomir Neshev, Yuri S. Kivshar, and Demetrios N. Christodoulides
J. Opt. Soc. Am. B 22(7) 1395-1405 (2005)