| 横向局部受力光纤光栅的研究 |
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| 引用本文： | 周春新,曾庆科,秦子雄,罗玖田,黄权.横向局部受力光纤光栅的研究[J].光纤与电缆及其应用技术,2006(6):10-14. |
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| 作者姓名： | 周春新 曾庆科 秦子雄 罗玖田 黄权 |
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| 作者单位： | 广西师范大学,物理与信息工程学院,广西,桂林,541004 |
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| 摘 要： | 仿真分析了光纤布拉格光栅(FBG)横向局部受力时的光谱变化,对不同受力位置、受力大小、受力长度的FBG分别作了光谱分析.当FBG横向局部受力时,光谱会分裂,在反射光谱上出现一个透射缺口,且随压力的变化而呈线性、周期性变化.通过和光纤光栅法布里-珀罗(F-P)腔的比较,发现此缺口是光纤光栅法布里-珀罗腔效应形成的,这将对此类光纤光栅传感系统的光谱检测具有一定的指导意义.
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| 关 键 词： | 光纤光栅 横向受力 法布里-珀罗腔 |
| 文章编号： | 1006-1908（2006）06-0010-05 |
| 收稿时间： | 2006-04-10 |
| 修稿时间： | 2006-04-10 |
Fiber Grating Suffering from Transverse and Local Force |
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| ZHOU Chun-xin,ZENG Qing-ke,QIN Zi-xiong,LUO Jiu-tian,HUANG Quan.Fiber Grating Suffering from Transverse and Local Force[J].Optical Fiber & Electric Cable and Their Applications,2006(6):10-14. |
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| Authors: | ZHOU Chun-xin ZENG Qing-ke QIN Zi-xiong LUO Jiu-tian HUANG Quan |
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| Affiliation: | College of Physics and Information Technology, Guangxi Normal University, Guilin 541004, Guangxi, China |
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| Abstract: | The spectrum phenomena of fiber Bragg grating(FBG) under transverse and local force are studied by numerical simulation.The reflection spectrum of FBG in different force application cases is analyzed.The reflection spectrum of the FBG subjected to the transverse and local force will split into two main peaks,and the split point will shift linearly and periodically with the applied force.It is found that the split point is formed by fiber grating Fabry-Perot cavity effect through compared with the reflection spectrum of fiber grating Fabry-Perot cavity.This can offer a guidance to the spectrum detection of FBG sensing systems. |
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| Keywords: | fiber grating transverse force Fubry-Perot cavity |
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