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| 熊猫光纤光栅温度传感特性的理论和实验研究 | |
| 引用本文： | 朱海,李智忠,蔡鹏,杨华勇,胡永明.熊猫光纤光栅温度传感特性的理论和实验研究[J].光子学报,2008,37(5):860-864. |
| 作者姓名： | 朱海 李智忠 蔡鹏 杨华勇 胡永明 |
| 作者单位： | 1. 海军潜艇学院,山东,青岛,266071 2. 海军潜艇学院,山东,青岛,266071;国防科技大学,光电学院,长沙,410073 3. 国防科技大学,光电学院,长沙,410073 |
| 摘 要： | 采用有限元法建立了熊猫光纤光栅的温度传感模型,研究了熊猫光纤温度变化时的内部应力分布,分析了几何结构变化对熊猫光纤光栅的温度传感特性的影响规律.理论分析和实验结果均表明:熊猫光纤光栅两偏振反射峰和双峰间距的温度灵敏度系数,都与猫眼半径和猫眼距离比值的平方(r/d)2成线性比例关系,其快轴方向的温度响应能力大于慢轴方向. |
| 关 键 词： | 光纤光学 熊猫光纤光栅 温度传感 几何结构 |
| 收稿时间： | 2007-01-18 |
| 修稿时间： | 2007-04-05 |
Theoretical and Experimental Research on Temperature Sensing Characteristics of PANDA Fiber Gratings |
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| ZHU Hai,LI Zhi-zhong,CAI Peng,YANG Hua-yong,HU Yong-ming.Theoretical and Experimental Research on Temperature Sensing Characteristics of PANDA Fiber Gratings[J].Acta Photonica Sinica,2008,37(5):860-864. | |
| Authors: | ZHU Hai LI Zhi-zhong CAI Peng YANG Hua-yong HU Yong-ming |
| Abstract: | The temperature sensing model of PANDA fiber grating is built using the finite element method. The interior stress distributions of PANDA fiber caused by temperature changing are studied, together with the influence of fiber structure on temperature sensing characteristics. Both the theoretical and experimental results show that the temperature sensing coefficients of two reflective peaks and peak separation are linear with the square of the ratio of radius to distance of Stress Applied Zone(SAZ) and the temperature response ability of fast axis is stronger than that of slow axis. |
| Keywords: | Fiber optics PANDA fiber grating Temperature sensing Geometric structure |
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