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

作　　者：杨利 薛林林 苏觉 钱景仁 

机构地区：[1]Department of Electronic Engineering and Information Science, University of Science and Technology of China

出　　处：《Chinese Optics Letters》2011年第7期17-20,共4页中国光学快报（英文版）

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

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.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.

关 键 词：Optical fibers 

分 类 号：TN253[电子电信—物理电子学] TQ051.71[化学工程]