Convention of Optical Vortices in Two-Helix Long-Period Fiber Gratings
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Abstract
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\to \pm2 and 1\to3 are simulated as three examples and the conversion efficiency higher than 98% can be realized.
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Xiao-Qiang Zhang, Rui-Shan Chen, Yong Zhou, Hai Ming, An-Ting Wang. Convention of Optical Vortices in Two-Helix Long-Period Fiber Gratings[J]. Chin. Phys. Lett., 2016, 33(8): 084201. DOI: 10.1088/0256-307X/33/8/084201
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Xiao-Qiang Zhang, Rui-Shan Chen, Yong Zhou, Hai Ming, An-Ting Wang. Convention of Optical Vortices in Two-Helix Long-Period Fiber Gratings[J]. Chin. Phys. Lett., 2016, 33(8): 084201. DOI: 10.1088/0256-307X/33/8/084201
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Xiao-Qiang Zhang, Rui-Shan Chen, Yong Zhou, Hai Ming, An-Ting Wang. Convention of Optical Vortices in Two-Helix Long-Period Fiber Gratings[J]. Chin. Phys. Lett., 2016, 33(8): 084201. DOI: 10.1088/0256-307X/33/8/084201
|
Xiao-Qiang Zhang, Rui-Shan Chen, Yong Zhou, Hai Ming, An-Ting Wang. Convention of Optical Vortices in Two-Helix Long-Period Fiber Gratings[J]. Chin. Phys. Lett., 2016, 33(8): 084201. DOI: 10.1088/0256-307X/33/8/084201
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