| 基于长周期光纤光栅的折射率传感器 |
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| 引用本文： | 鲁韶华,许鸥,冯素春,裴丽,简水生.基于长周期光纤光栅的折射率传感器[J].光电技术应用,2008,23(4):35-38. |
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| 作者姓名： | 鲁韶华 许鸥 冯素春 裴丽 简水生 |
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| 作者单位： | 1. 全光网络与现代通信网教育部重点实验室,北京,100044;北京交通大学光波技术研究所,北京,100044
2. 全光网络与现代通信网教育部重点实验室,北京,100044 |
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| 基金项目： | 国家自然科学基金，北京市自然科学基金 |
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| 摘 要： | 长周期光纤光栅具有制作成本低、无背向反射、结构紧凑等优点，且对外界折射率变化有较高的敏感性，特别适用于折射率传感．简要概括了长周期光纤光栅折射率传感的基本原理，介绍了基于长周期光纤光栅的折射率传感器的研究进展，目前的研究重点集中在克服温度交叉干扰、提高传感精度以及拓宽传感范围的方面，比较了各种方案的优缺点．
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| 关 键 词： | 光纤光学 长周期光纤光栅 折射率传感 |
Refractive Index Sensors Based on Long-Period Fiber Gratings |
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| LU Shao-hua,XU Ou,FENG Su-chun,PEI Li,JIAN Shui-sheng.Refractive Index Sensors Based on Long-Period Fiber Gratings[J].Electro-Optic Technology Application,2008,23(4):35-38. |
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| Authors: | LU Shao-hua XU Ou FENG Su-chun PEI Li JIAN Shui-sheng |
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| Affiliation: | LU Shao-hua, XU Ou, FENG Su-chun, PEI Li, JIAN Shui-sheng ( 1. Key Lab of All Optical Network ＆ Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, Ckina ; 2. Institute of Lightwavee Technology, Beijing Jiaotong University, Beijing 100044, China ) |
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| Abstract: | Long-period fiber gratings （LPGs） have the advantages such as low cost, no reflection and compact structure; besides, they are highly sensitive to the external refractive index which makes the LPGs very suitable for environment refractive index sensors. The basic principle on refractive index sensing of LPGs is summarized and the recent researches on refractive index sensing based on LPGs are reviewed. Current research focuses on temperature compensation and how to improve sensing sensitivity and sensing range. Advantages and disadvan-- tages of various schemes are compared. |
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| Keywords: | fiber optics long-period fiber gratings refractive index sensor |
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