| 微弯压力光子晶体光纤传感器的设计 |
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| 引用本文： | 余先伦,宋明成. 微弯压力光子晶体光纤传感器的设计[J]. 光通信研究, 2007, 33(4): 52-54 |
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| 作者姓名： | 余先伦 宋明成 |
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| 作者单位： | 重庆三峡学院,物理与电子工程学院,光电信息技术实验室,重庆,404000 |
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| 基金项目： | 重庆市教委资助项目 , 重庆三峡学院资助课题 |
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| 摘 要： | 光子晶体光纤(PCF)具有压力敏感特性.文章根据弹光理论推导了PCF应变与应力的关系,得到压力作用下PCF折射率分布波动的定量关系,提出一种微弯压力PCF传感器的设计方案,并从理论上分析了压力存在条件下光脉冲在PCF中传播时的相位波动及这种传感器的检测原理.
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| 关 键 词： | 光纤传感 光子晶体光纤 传感器 折射率分布 相位波动 |
| 文章编号： | 1005-8788（2007）04-0052-03 |
| 收稿时间： | 2007-01-03 |
| 修稿时间： | 2007-01-03 |
Design of microbend pressure photonic crystal fiber sensors |
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| Yu Xianlun,Song Mingcheng. Design of microbend pressure photonic crystal fiber sensors[J]. Study on Optical Communications, 2007, 33(4): 52-54 |
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| Authors: | Yu Xianlun Song Mingcheng |
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| Affiliation: | Department of Physics and Electronics Engineering, Optoelectronic Information Science and Technology Laboratory, Chongqing Three Gorges University, Chongqing 404000, China |
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| Abstract: | The Photonic Crystal Fiber(PCF)is pressuresensitive.In this paper,the relationship between the strain and stress in PCF is deduced by elasto-optical theory and the quantitative fluctuations of its refractive index distribution under pressure obtained.The schematic design of a microbend pressure PCF sensor is presented and the phase fluctuation of the optical pulses transported in PCF under pressure and the detecting principle for such a sensor are theoretically analyzed. |
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| Keywords: | fiber-optic sensing PCF sensor refractive index distribution phase fluctuation |
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