Multiple-charged optical vortex solitons in bulk Kerr media

被引：21

作者：

Velchev, I ^{[1
]}

Dreischuh, A ^{[1
]}

Neshev, D ^{[1
]}

Dinev, S ^{[1
]}

机构：

[1] UNIV SOFIA,DEPT QUANTUM ELECT,BG-1164 SOFIA,BULGARIA

来源：

OPTICS COMMUNICATIONS | 1997年 / 140卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

nonlinear optics; Vortex Solitons; topological charge;

D O I：

10.1016/S0030-4018(97)00172-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate numerically Optical Vortex Solitons (OVSs) with different topological charges (m) and show that they are characterised with soliton constants equal to the product of their topological charge and the soliton constant of unit OVS. The propagation characteristics for \m\ = 1,2,3 and 4 are investigated. We proposed an approximate analytical description of the field distribution, which was found to be adequate to describe multiple-charged solitons. The instability of these solitons is discussed and they were found to be unstable in the presence of a perturbation. (C) 1997 Elsevier Science B.V.

引用

页码：77 / 82

页数：6

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