Study on transmission characteristics of photonic crystal fiber gratings with periodic air hole deformation |
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| Authors: | LIU Yan-yan Tian Che QI Yue-feng and GUO Wen-guang |
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| Affiliation: | LIU Yan-yan1,2**,Tian Che1,QI Yue-feng1,2,and GUO Wen-guang1 1. School of Information Science and Engineering,Yanshan University,Qinhuangdao 066004,China 2. Key Laboratory of Especial Optical Fiber and Fiber Sensor of Hebei Provincie,China |
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| Abstract: | The paper studies a kind of improved photonic crystal fiber gratings fabricated by CO2 laser heating method. The effective refractive index of cladding induced by periodic air hole deformation is computed using multipole method, and the relationship between the effective refractive index and the collapse of air-holes is discussed, thereby the modulation expression of effective refractive index is obtained. The grating transmission characteristics are simulated. The results indicate that with the... |
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