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应用科学学报 >

2020 , Vol. 38 >Issue 2: 260 - 278

DOI: https://doi.org/10.3969/j.issn.0255-8297.2020.02.004

光纤传感技术

基于微结构光纤的温度传感器研究

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  • 1. 深圳大学 物理与光电工程学院, 广东 深圳 518060;
    2. 深圳市传感器技术重点实验室, 广东 深圳 518060;
    3. 深圳光纤传感网工程实验室, 广东 深圳 518060;
    4. 香港中文大学(深圳)理工学院, 广东 深圳 518172

收稿日期: 2019-12-08

  网络出版日期: 2020-04-01

基金资助

国家自然科学基金（No.U1813207，No.61275125）；广东省自然科学基金项目（No.2018A030313376）资助

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Research on Temperature Sensors Based on Microstructured Fiber

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  • 1. College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong Province, China;
    2. Shenzhen Key Laboratory of Sensor Technology, Shenzhen 518060, Guangdong Province, China;
    3. Shenzhen Engineering Laboratory of Sensor Networks, Shenzhen 518060, Guangdong Province, China;
    4. School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, Guangdong Province, China

Received date: 2019-12-08

  Online published: 2020-04-01

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摘要

对基于模间Mach-Zehnder干涉式、Michelson干涉、F-P干涉和荧光等原理的微结构光纤温度传感器开展了较为系统和深入的研究，建立了相关理论，研制出了一系列新型光纤温度传感器及其功能器件.展示了一种新型的多参量荧光光纤有源温度传感器，并建立一种新的信号处理方法；利用液体填充微结构光纤制作出的在线式、全光纤Mach-Zehnder干涉式温度传感器，敏感度达–1.83 nm/℃；利用全固态光子带隙光纤内的高阶导模来制作结构紧凑的Michelson高温传感器，传感头尺寸仅为1.03 mm；基于柚子型小纤芯微结构光纤制作了微腔F-P高温传感器，温度的灵敏度为17.7 pm/℃，测量温度达1 000℃.

关键词： 微结构光纤; 温度传感器; 荧光; 模式干涉

本文引用格式

耿优福, 李学金 . 基于微结构光纤的温度传感器研究[J]. 应用科学学报, 2020 , 38(2) : 260 -278 . DOI: 10.3969/j.issn.0255-8297.2020.02.004

Abstract

A variety of microstructured fber temperature sensors, including intermodalinterference types of Mach-Zehnder, Michelson and F-P interferometers and fluorescence type based on demodulation method, have been studied comprehensively and profoundly.The corresponding theories, sensor systems and functional devices are constructed. Among these works, a novel multi-parameter fluorescence fber temperature sensor with a new signal processing method based on the strong correlation between excitation light and fluorescence was proposed. And based on a small segment of liquid-flled microstructured fber, an all-fber Mach-Zehnder temperature fber sensor with ultrahigh sensitivity of -1.83 nm/℃ was developed. In addition, a Michelson-type high temperature fber sensor with a tiny probe size of only 1.03 mm was achieved by utilizing a high-order mode in all-solid photonic bandgap fber. Moreover, a grape-type microstructured fber F-P interferometer sensor for high temperature measurement was proposed and demonstrated. The high temperature sensor performs a sensitivity of 17.7 pm/℃ at 1 570 nm and a high measurable temperature of up to 1 000 ℃.

Key words： microstructured fber; temperature sensor; fluorescence; intermodal interference

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