Convention of Optical Vortices in Two-Helix Long-Period Fiber Gratings

An effective method to fabricate two-helix long-period fiber gratings （TH-LFGs） is presented. Based on the coupling mode theory, the conversion of optical vortices （OVs） in TH-LFGs are analyzed in detail. The conversions of OVs with different topological charges： 0 → ±2 and 1 → 3 are simulated as th...

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Bibliographic Details
Published inChinese physics letters Vol. 33; no. 8; pp. 45 - 48
Main Author 张晓强 陈瑞山 周勇 明海 王安廷
Format Journal Article
LanguageEnglish
Published 01.08.2016
Subjects
双螺旋
涡旋
约定
耦合模理论
长周期光纤光栅
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/33/8/084201

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Summary:An effective method to fabricate two-helix long-period fiber gratings （TH-LFGs） is presented. Based on the coupling mode theory, the conversion of optical vortices （OVs） in TH-LFGs are analyzed in detail. The conversions of OVs with different topological charges： 0 → ±2 and 1 → 3 are simulated as three examples and the conversion efficiency higher than 98% can be realized.
Bibliography:An effective method to fabricate two-helix long-period fiber gratings （TH-LFGs） is presented. Based on the coupling mode theory, the conversion of optical vortices （OVs） in TH-LFGs are analyzed in detail. The conversions of OVs with different topological charges： 0 → ±2 and 1 → 3 are simulated as three examples and the conversion efficiency higher than 98% can be realized.
11-1959/O4
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/33/8/084201