Intensely twisted elliptic optical fibres maintaining propagation of a single optical vortex

被引：17

作者：

Alexeyev, C. N. ^{[1
]}

Volyar, A. V. ^{[1
]}

Yavorsky, M. A. ^{[1
]}

机构：

[1] Taurida Natl VI Vernandsky Univ, UA-95007 Simferopol, Crimea, Ukraine

来源：

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2006年 / 8卷 / 11期

关键词：

singular beam; optical vortex; twisted fibre; one-dimensional photonic crystal;

D O I：

10.1088/1464-4258/8/11/L01

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The l = 1 modes and bandgap structure of highly twisted elliptic-core weakly guiding fibres are studied theoretically. It is shown that such a few-mode fibre being illuminated by a circularly polarized Gaussian beam maintains within the bandgap the propagation of a single optical vortex while either suppressing or reflecting other l = 1 modes, as well as parasitic fundamental modes. It is also demonstrated that such a fibre can filter optical vortices in the sign of their topological charge.

引用

页码：L5 / L9

页数：5

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