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Compression and stretching of ring-vortex solitons in a bulk nonlinear medium |
| Lai Xian-Jing (来娴静)a b, Cai Xiao-Ou (蔡晓鸥)b, Zhang Jie-Fang (张解放)a c |
a School of Physical Science and Technology, Soochow University, Suzhou 215006, China;
b Department of Basic Science, Zhejiang Shuren University, Hangzhou 310015, China;
c Zhejiang University of Media and Communications, Hangzhou 310018, China |
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Abstract Compression and stretching of ring-vortex solitons, which is a novel self-similar solution of (2+1)-dimensional diffraction decreasing waveguide, is investigated analytically and numerically. We obtain the ring-vortex solitons via the similarity transformation method. The distance modulation for the width, the diffraction, and the nonlinear response, strongly affects the form and the behavior of the self-similar vortex, and facilitates the efficient compression of optical waves. This approximate ring-vortex solitons can reflect the real properties of self-similar optical vortex beams during propagation under certain parameter window selection. Specific examples and figures are given to illustrate discussed features. The results obtained in this paper may have potential values for all-optical data-processing schemes and the design of beam compressors and amplifiers.
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Received: 13 January 2015
Revised: 28 January 2015
Accepted manuscript online:
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PACS:
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05.45.Yv
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(Solitons)
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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Corresponding Authors:
Lai Xian-Jing
E-mail: laixianjing@163.com
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Cite this article:
Lai Xian-Jing (来娴静), Cai Xiao-Ou (蔡晓鸥), Zhang Jie-Fang (张解放) Compression and stretching of ring-vortex solitons in a bulk nonlinear medium 2015 Chin. Phys. B 24 070503
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