| 长周期光纤光栅薄膜传感器研究 |
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| 引用本文： | 徐艳平 顾铮tian 陈家璧.长周期光纤光栅薄膜传感器研究[J].上海理工大学学报,2005,27(3):215-218. |
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| 作者姓名： | 徐艳平 顾铮tian 陈家璧 |
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| 作者单位： | 1. 上海理工大学,光学与电子信息工程学院,上海,200093
2. 上海理工大学,理学院,上海,200093 |
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| 基金项目： | 上海市曙光计划资助项目(02SG032)，上海市科技发展基金资助项目(01F01) |
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| 摘 要： | 采用耦合模理论建立了长周期光纤光栅薄膜传感器的理论模型，分析了其传感机理，并进行了实验研究，给出了初步的气敏实验结果．研究结果表明，光纤光栅包层外所镀敏感薄膜的光学参数(厚度和折射率)与传感器的灵敏度高低有直接关系，传感器的结构优化非常必要．长周期光纤光栅薄膜传感器具有薄膜传感器和光纤传感器的优点，具有广阔的应用前景．
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| 关 键 词： | 光纤传感器 长周期光纤光栅 薄膜传感器 气体传感器 |
| 文章编号： | 1007-6735(2005)03-0215-04 |
| 修稿时间： | 2004年12月3日 |
Study of long-period fiber grating thin film sensors |
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| XU Yan-ping,GU Zheng-tian,CHEN Jia-bi.Study of long-period fiber grating thin film sensors[J].Journal of University of Shanghai For Science and Technology,2005,27(3):215-218. |
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| Authors: | XU Yan-ping~ GU Zheng-tian~ CHEN Jia-bi~ |
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| Institution: | XU Yan-ping~1,GU Zheng-tian~2,CHEN Jia-bi~1 |
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| Abstract: | Based on coupled mode theory,a theoretical model is established for longperiod fiber thin film sensors.The sensing characteristic is analyzed and gassensing experiment with preliminary experiment results is presented.The results are demonstrated to show that the thin film parameters(thickness and refractive index) have direct relation to the sensitivity of sensors and the structure optimization is very important.With the advantages of both film sensors and fiber optical sensors,the longperiod fiber thin film sensors will have a wide application prospect in industrial area. |
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| Keywords: | fiber optic sensors longperiod fiber grating film sensors gas sensors |
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