| 分布式本征型法布里-珀罗传感器的研究 |
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| 引用本文： | 桂鑫,胡陈晨,谢莹,李政颖.分布式本征型法布里-珀罗传感器的研究[J].物理学报,2015,64(5):50704-050704. |
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| 作者姓名： | 桂鑫 胡陈晨 谢莹 李政颖 |
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| 作者单位： | 1. 武汉理工大学, 光纤传感技术国家工程实验室, 武汉 430070;2. 武汉理工大学, 光纤传感技术与信息处理教育部重点实验室, 武汉 430070 |
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| 基金项目： | 国家自然科学基金(批准号: 61290311, 61205072)和湖北省自然科学基金(批准号: ZRZ019)资助的课题. |
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| 摘 要： | 本文介绍了一种单模-多模-单模结构的本征型法布里-珀罗传感器, 通过对传感器中渐变型多模光纤的光场分布进行分析和仿真, 实现了传感器腔长的优化设计, 大大降低了插入损耗, 增强了传感器复用能力. 实验证明串联复用中的单个传感器的优化后的插入损耗从4 dB减少至0.83 dB, 多个级联复用时损耗变化平缓, 温度测试结果表明级联的12个传感器均具有较好的灵敏度和线性度.
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| 关 键 词： | 光纤传感器 本征型法布里珀罗传感器 分布式传感 |
| 收稿时间： | 2014-08-29 |
Research on distributed intrinsic Fabry-Perot sensors |
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| Gui Xin,Hu Chen-Chen,Xie Ying,Li Zheng-Ying.Research on distributed intrinsic Fabry-Perot sensors[J].Acta Physica Sinica,2015,64(5):50704-050704. |
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| Authors: | Gui Xin Hu Chen-Chen Xie Ying Li Zheng-Ying |
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| Institution: | 1. National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China;2. Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | This paper introduces a kind of single mode-multimode-single mode intrinsic Fabry-Perot interferometer (SMS-IFPI). We optimize the sensing length of the graded-index multimode fiber (GI-MMF), insertion loss, and multiplexing capability through the analysis and simulation of the optical field distribution in the GI-MMF. Experiment proves that the insertion loss of a single sensing unit from the optimized cascade SMS-IFPI may be decreased from 4 dB to 0.83 dB. Testing the response characteristics of SMS-IFPI temperature sensors in the distribution under the condition of different temperature, the experimental results show that each SMS-IFPI can have better sensitivity and linearity. |
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| Keywords: | fiber opticsensors intrinsic Fabry-Pérot interferometer distributed sensing |
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