Miniature all-fiber Fabry-Perot interferometric high temperature sensor  based on a thin film

ZHU Tao; KE Tao; RAO Yun-jiang; DUAN De-wen; XU Min

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Miniature all-fiber Fabry-Perot interferometric high temperature sensor based on a thin film

Article | 更新时间：2020-08-12

- Miniature all-fiber Fabry-Perot interferometric high temperature sensor based on a thin film
- Optics and Precision Engineering Vol. 18, Issue 5, Pages: 1054-1059(2010)
- 作者机构：
  
  1. 重庆大学光电工程学院光电技术及系统教育部重点实验室重庆,400044
  2. 电子科技大学通信与信息工程学院宽带光纤传输及通信网络技术教育部重点实验室，四川成都610054
- 作者简介：
- 基金信息：
- DOI：
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- Received：25 June 2009，
  
  Revised：16 September 2009，
  
  Published Online：25 May 2010，
  
  Published：25 May 2010
- 稿件说明：
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朱涛,，柯涛，饶云江,，段德稳，徐敏. 微型膜结构全光纤珐珀干涉高温传感器[J]. 光学精密工程, 2010,18(5):1054-1059

ZHU Tao, KE Tao, RAO Yun-jiang, et al. Miniature all-fiber Fabry-Perot interferometric high temperature sensor based on a thin film[J]. Optics and precision engineering, 2010, 18(5): 1054-1059.
朱涛,，柯涛，饶云江,，段德稳，徐敏. 微型膜结构全光纤珐珀干涉高温传感器[J]. 光学精密工程, 2010,18(5):1054-1059 DOI：

ZHU Tao, KE Tao, RAO Yun-jiang, et al. Miniature all-fiber Fabry-Perot interferometric high temperature sensor based on a thin film[J]. Optics and precision engineering, 2010, 18(5): 1054-1059. DOI：

摘要

制作了一种微型膜结构的全光纤在线珐珀干涉式高温传感器。该传感器是在单模光纤端面依次熔接一段大芯径空芯光纤和一段研磨的多模光纤膜片而构成的，因此，温度引起的珐珀腔光程差改变量由空芯光纤的热膨胀和温度引起腔内压强改变从而改变膜片的扰度两部分组成，从而使相同温度变化下传感器的光程差变化量更大，分辨率更高。实验结果表明，在100 ~650 ℃，该传感器单位温度变化的光程差变化量约为1.029 nm，温度分辨率约为1.5 ℃，测量线性度约为0.996 7，且滞回小，重复性好。这种膜结构的全光纤珐珀干涉式高温传感器因其体积小，温度分辨率高，将在多点高温测量领域有好的应用前景。

Abstract

A miniature all-fiber Fabry-Perot high temperature sensor with a thin film is presented. The sensor is fabricated by splicing a hollow fiber with a grinded multimode fiber thin film on the end of a single mode fiber. The change of the optical path difference of the Fabry-Perot cavity are composed of two parts

the thermal expansion of the hollow fiber and the deflection of the thin film induced by temperature change. As the optical path difference of the sensor is langer than those of common sensors at the same temperature

it can offer a higher sensitivity. A temperature measurement experiment is carried out

results show that the sensor has a linearity of 0.996 7

sensitivity of 1.029 nm/℃ and the resolution of measuring system about 1.5 ℃.It is concluded that the miniature all-fiber Fabry-Perot high temperature sensor with a thin film will be a candidate in the field of micro-region multipoint quasi-distributed high temperature measurement.

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