| 级联长周期光纤光栅的温度特性研究 |
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| 引用本文： | 胡兴柳,梁大开,方挺,王彦,李丹. 级联长周期光纤光栅的温度特性研究[J]. 光电子．激光, 2012, 0(9): 1659-1664 |
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| 作者姓名： | 胡兴柳 梁大开 方挺 王彦 李丹 |
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| 作者单位： | 安徽工业大学电气信息学院;南京航空航天大学机械结构力学及控制国家重点实验室;南京航空航天大学机械结构力学及控制国家重点实验室;安徽工业大学电气信息学院;安徽工业大学电气信息学院;安徽工业大学电气信息学院 |
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| 基金项目： | 国家自然科学基金(61201109,51007002,51275239,60907038);安徽省教育厅自然科学基金(KJ2011Z031,KJ2010A341);新世纪优秀人才支持计划(NCET-10-0070);教育部重点科学与技术培育基金(707031)资助项目 |
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| 摘 要： | 对级联长周期光纤光栅(C-LPFG)的温度敏感特性进行了理论和实验研究。讨论了C-LPFG的谐振波长温度灵敏度与包层模的阶次、光纤光栅周期的关系,进行了20～80℃温度传感实验,实验结果表明,谐振波长与温度成线性响应,升降温数据的重复性比较好,测得其谐振波长温度灵敏度为0.250 1nm/℃、而相同参数的LPFG所测得的谐振波长温度灵敏度为0.131nm/℃。表明,C-LPFG的温度灵敏度远高于同样参数的LPFG。
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| 关 键 词： | 长周期光纤光栅(LPFG) 温度 谐振波长 |
Research on the temperature characteristics of cascaded long period fiber gratings |
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| HU Xing-liu,LIANG Da-kai,FANG Ting,WANG Yan and LI Dan. Research on the temperature characteristics of cascaded long period fiber gratings[J]. Journal of Optoelectronics·laser, 2012, 0(9): 1659-1664 |
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| Authors: | HU Xing-liu LIANG Da-kai FANG Ting WANG Yan LI Dan |
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| Affiliation: | 1(1.College of Information and Electric Engineering,Anhui University of Technology,Ma′anshan 243002,China; 2.State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | The temperature response characteristics of cascaded long period fiber grating(C-LPFG,or called as long period fiber grating pair,LPFGP) are researched theoretically and experimental.The relationships between the C-LPFG temperature sensitivity and the order of cladding mode,the period of the long period grating pair are discussed as well.The temperature sensing experiment is done with the temperature ranging from 20 ℃ to 80 ℃.The experimental results show that the C-LPFG resonant wavelength has a linear relation with the time.The data has good repeatability.The resonant wavelength′s temperature sensitivity is 0.250 1 nm/℃,while with the same parameters the LPFG′s temperature sensitivity is 0.131 nm/℃.we can see that C-LPFG temperature sensitivity is higher than that of the LPFG with the same parameters. |
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| Keywords: | long period fiber grating(LPFG) temperature resonant wavelength |
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