基于单端探测温度和折射率的MZI光纤传感器

余俊良; 冯国英; 周寿桓

doi:10.11884/HPLPB201931.190042

基于单端探测温度和折射率的MZI光纤传感器

doi: 10.11884/HPLPB201931.190042

余俊良^1,,
冯国英^1, ,,
周寿桓^{1, 2}

1.
四川大学电子信息学院, 成都 610065
2.
华北光电技术研究所, 北京 100015

基金项目:

国家自然科学基金项目 11574221

详细信息

作者简介:
余俊良(1992—), 男，硕士研究生，方向为从事光纤传感器研究; JunliangYu@163.com

通讯作者:
冯国英(1969—), 女，教授，博士生导师，从事激光微纳工程研究; guoing_feng@scu.edu.cn

中图分类号: O436
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- 被引次数: 0
出版历程
- 收稿日期: 2019-02-21
- 修回日期: 2019-06-26
- 刊出日期: 2019-09-15

MZI fiber optic sensor based on single-ended temperature and refractive index detection

Yu Junliang^1
,,
Feng Guoying^{1
, ,},
Zhou Shouhuan^{1, 2}

1.
College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
2.
North China Research Institute of Electro-Optics, Beijing 100015, China

摘要

摘要: 提出并演示了一种基于单端探测的光纤传感器，可同时测量温度和折射率。微结构光纤探头由两个玻璃光纤微球拼接在一起，并在该探头的末端利用真空电子束蒸镀一层铝膜以增加反射，从而形成微球结构的马赫-曾德尔型光纤传感头。实验结果表明，该器件的温度灵敏度和折射率可分别达到50.77 pm/℃和-21.94 nm/RIU。这项工作提出了一种低成本、高分辨率的基于光纤方法实现的多功能传感应用。单端探测的马赫曾德尔型光纤传感器小尺寸的优势可应用到小体积气体的测量，而它的全二氧化硅设计提供了高温或化学严酷环境的兼容性。
- 光纤传感器 /
- 单端探测 /
- 折射率 /
- 铝膜
Abstract: We present and demonstrate a fiber-optic sensor based on single-ended detection that measures both temperature and refractive index. The cladding of the two microsphere-structured fibers is spliced together, and the end of the fiber is coated with an aluminum film to increase reflection, thereby forming a microsphere structure sensing head. The experimental results show that the temperature sensitivity and refractive index of the device can reach 50.77 pm/℃ and -21.94 nm/RIU, respectively. This work presents a low-cost, high-resolution and simple fiber-based approach to versatile sensing applications.
- fiber sensor /
- single-ended detection /
- refractive index /
- aluminum film

HTML全文

图 1 实验装置图

Figure 1. Experimental device diagram

下载: 全尺寸图片幻灯片

图 2 不同光程差下的干涉光谱图

Figure 2. Interference spectra of different optical path differences

下载: 全尺寸图片幻灯片

图 3 (a) 不同温度下的实验反射光谱图(b)升温和降温的拟合曲线图

(插图：不同温度下的仿真反射光谱图)

Figure 3. (a) Experimental reflectance spectra at different temperatures, (b) fit curve for warming and cooling

(inset: simulated reflectance spectra at different temperatures)

下载: 全尺寸图片幻灯片

图 4 (a) 不同浓度NaCl溶液的反射光谱图(b) 折射率与波长偏移的拟合曲线图

Figure 4. (a) Reflection spectrum of different concentrations of NaCl solution, (b) fit curve of refractive index and wavelength shift

下载: 全尺寸图片幻灯片

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