Characterization of external refractive index sensitivity of a photonic crystal fiber long-period grating

查看全文 作　　者：Fei [1]Tian;Jiri [2]Kanka;Henry [1]Du

机构地区：[1]Department of Chemical Engineering and Materials Science, Stevens Institute of Technology;[2]Institute of Photonics and Electronics AS CR

出　　处：《Chinese Optics Letters》索引2015年第13卷第7期,共3页

基　　金：supported by the United States National Science Foundation under Grant No.DMR-1206669;the Ministry of Education,Youth,and Sport of the Czech Republic under Grant No.LH 11038 within the U.S.–Czech S&T Cooperation agreement 摘　　要：Long-period gratings(LPGs) are fabricated in a photonic crystal fiber(PCF) using the symmetric pointby-point CO2 laser irradiation method to explore the sensitivity characterization of PCF–LPG. Numerical simulation is used to guide the investigation. It is found that the refractive index(RI) sensitivity of PCF–LPG depends on the coupled cladding modes as well as the coupled resonance wavelength(RW) of the LPG.Experimental studies show that the longer the RW, the higher the RI sensitivity for the same cladding mode.At similar RWs, the lower the cladding mode, the higher the RI sensitivity of PCF–LPG. 关键词：光子晶体光纤折射率敏感性长周期光栅长周期光纤光栅表征数值模拟计算液化石油气

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Characterization of external refractive index sensitivity of a photonic crystal fiber long-period grating

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