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Coupled-mode analysis for single-helix chiral fiber gratings with small core-offset

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【Author】 Li Yang , Linlin Xue , Jue Su , and Jingren Qian Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China

【机构】 Department of Electronic Engineering and Information Science, University of Science and Technology of China；

【摘要】 Using conventional coupled-mode theory, a set of coupled-mode equations are formulated for single-helix chiral fiber long-period gratings. A helical-core fiber is analyzed as an example. The analysis is simple in mathematical form and intuitive in physical concept. Based on the analysis, the polarization independence of mode coupling in special fiber gratings is revealed. The transmission characteristics of helical-core fibers are also simulated and discussed.更多还原

【Abstract】 Using conventional coupled-mode theory, a set of coupled-mode equations are formulated for single-helix chiral fiber long-period gratings. A helical-core fiber is analyzed as an example. The analysis is simple in mathematical form and intuitive in physical concept. Based on the analysis, the polarization independence of mode coupling in special fiber gratings is revealed. The transmission characteristics of helical-core fibers are also simulated and discussed.更多还原

【关键词】 offset； helix； cladding； chiral； intuitive； grating； helical； independence； matching； formulated；

【基金】 supported by the National Natural Science Foundation of China (No. 60807023);the Fundamental Research Funds for the Central Universities;the Scientific Research Foundation for the Returned Overseas Chinese Scholars;the State Education Ministry;the Anhui Key Laboratory of Optoelectronic Science and Technology

【文献出处】 Chinese Optics Letters ,中国光学快报(英文版) , 编辑部邮箱 ,2011年07期

【分类号】TN253
【被引频次】12
【下载频次】119

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