基于弯曲损耗的光纤温度传感器

周广丽; 鄂书林; 邓文渊

基于弯曲损耗的光纤温度传感器

1.
中国科学院, 长春光学精密机械与物理研究所, 应用光学国家重点实验室, 长春, 130033;
2.
中国科学院, 研究生院, 北京, 100049

作者简介: 周广丽(1983- ),女,硕士研究生,主要研究方向为光纤传感器;.

通讯作者: 鄂书林, eshulin@sohu.com ;

中图分类号: TP212.14

Optical fiber temperature sensors based on bending loss

1.
Key Laboratory of Modern Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
2.
Graduate School, Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: E Shu-lin, eshulin@sohu.com ;

CLC number: TP212.14

摘要: 为了推导多模光纤弯曲损耗与弯曲半径、环境温度的关系,采用了WKB法求解非均匀直光纤的传播模数,并将弯曲光纤的有效折射率、弯曲光纤截止传播常数和光纤的热光效应同时引入到非均匀直光纤有效传播模数中。利用多模光纤进行实验验证,研制出测温灵敏度为0.1/℃、测温范围为10℃～70℃的光纤温度传感器。结果表明,弯曲损耗随弯曲半径的增大而减小,随环境温度的升高而减小,可以利用弯曲损耗测量环境温度。
- 光纤光学 /
- 光纤温度传感器 /
- WKB法 /
- 有效折射率 /
- 截止传播常数 /
- 有效传播模数 /
- 弯曲损耗
Abstract: In order to deduce that the bending loss was a function of curvature radius and temperature,WKB method was used to solve the number of modes of non-uniform straight fibers, the effective refractive index, the cut-off of propagation constant of bending fibers and thermo-optic effect of fibers were introduced to the number of modes of non-uniform straight fiber also.Choosing multimode graded-index optical fibers to get a temperature sensor, the sensitivity of the sensor was 0.1/℃ and the temperature sensing range was 10℃～70℃.The results indicate that the smaller the curvature radius and the temperature, the bigger the bending loss.Bending loss can be used to measure the temperature.
- fiber optics /
- optical fiber temperature sensor /
- WKB method /
- effective refractive index /
- cut-off of propagation constant /
- effective number of modes /
- bending loss

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基于弯曲损耗的光纤温度传感器

作者简介: 周广丽(1983- ),女,硕士研究生,主要研究方向为光纤传感器;.

通讯作者: 鄂书林, eshulin@sohu.com ;

Optical fiber temperature sensors based on bending loss

Corresponding author: E Shu-lin, eshulin@sohu.com ;

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基于弯曲损耗的光纤温度传感器

通讯作者: 鄂书林, eshulin@sohu.com;

作者简介: 周广丽(1983- ),女,硕士研究生,主要研究方向为光纤传感器;

English Abstract

Optical fiber temperature sensors based on bending loss

Corresponding author: E Shu-lin, eshulin@sohu.com

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基于弯曲损耗的光纤温度传感器

作者简介: 周广丽(1983- ),女,硕士研究生,主要研究方向为光纤传感器;.

通讯作者: 鄂书林, eshulin@sohu.com ;

Optical fiber temperature sensors based on bending loss

Corresponding author: E Shu-lin, eshulin@sohu.com ;

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基于弯曲损耗的光纤温度传感器

通讯作者: 鄂书林, eshulin@sohu.com;

作者简介: 周广丽(1983- ),女,硕士研究生,主要研究方向为光纤传感器;

English Abstract

Optical fiber temperature sensors based on bending loss

Corresponding author: E Shu-lin, eshulin@sohu.com

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