Vortex lattice solitons supported by localized gain

被引：19
|
作者：
Kartashov, Yaroslav V. [3 ,4 ]
Konotop, Vladimir V. [1 ,2 ]
Vysloukh, Victor A. [3 ,4 ]
Torner, Lluis [3 ,4 ]
机构：
[1] Univ Lisbon, Fac Ciencias, Ctr Fis Teor & Computac, P-1649003 Lisbon, Portugal
[2] Univ Lisbon, Fac Ciencias, Dept Fis, P-1649003 Lisbon, Portugal
[3] Univ Politecn Cataluna, Barcelona 08860, Spain
[4] ICFO Inst Ciencies Foton, Barcelona 08860, Spain
来源：
OPTICS LETTERS | 2010年 / 35卷 / 19期
关键词：
SPATIAL SOLITONS; VORTICES;
D O I：
10.1364/OL.35.003177
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We show that localized gain supports the existence of dissipative vortex solitons in periodic Kerr media with strong two-photon absorption. Vortex solitons exist in both focusing and defocusing media, with their propagation constants emerging from semi-infinite or finite gaps in the lattice spectrum. Coincidence of the discrete rotational symmetries of the gain landscape and refractive index distribution is a necessary condition for exciting vortex solitons, which otherwise transform into stable dissipative multipoles. (C) 2010 Optical Society of America
引用
收藏
页码：3177 / 3179
页数：3
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