Humidity Sensor Based on Hybrid Fiber Bragg Grating/Abrupt Fiber Taper

被引：24

作者：

Shao, Min ^{[1
,2
]}

Zang, Yixiong ^{[1
]}

Qiao, Xueguang ^{[3
]}

Fu, Haiwei ^{[1
]}

Jia, Zhen-an ^{[1
]}

机构：

[1] Xian Shiyou Univ, Sch Sci, Xian 710065, Peoples R China

[2] Northwestern Polytech Univ, Xian 710065, Peoples R China

[3] Northwest Univ Xian, Sch Phys, Xian 710069, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2017年 / 17卷 / 05期

基金：

美国国家科学基金会;

关键词：

Fiber Bragg grating; abrupt fiber taper; humidity sensor;

D O I：

10.1109/JSEN.2016.2631536

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel fiber humidity sensor based on fiber Bragg grating (FBG) cascaded with an abrupt fiber taper is proposed and demonstrated. The evanescent wave around the abrupt fiber taper varies with humidity around the sensor, so that the power of the FBG core reflection is affected by the ambient humidity. Experimental results show that the sensor has a linear response to humidity with sensitivity of 0.10-dB/% RH in the humidity range of 50%-90% RH. Such a cost-effective, compact, and reflection power detection-based humidity sensor could be a good candidate in applications.

引用

页码：1302 / 1305

页数：4

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