Simultaneous Refractive Index and Temperature Sensing With Precise Sensing Location

被引：28
作者：
Zhang, Lei [1 ,2 ,3 ]
Wang, D. N. [1 ,2 ,3 ]
Liu, Jibing [3 ,4 ]
Chen, H. F. [2 ,3 ]
机构：
[1] Hubei Polytech Univ, Dept Elect Engn, Huangshi 435000, Peoples R China
[2] China Jiliang Univ, Coll Opt & Elect Engn, Hangzhou 310018, Zhejiang, Peoples R China
[3] Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
[4] Hubei Normal Univ, Coll Phys & Elect Sci, Huangshi 435000, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2016年 / 28卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Optical fiber sensors; interferometry; microstructure fabrication; FIBER;
D O I：
10.1109/LPT.2016.2516523
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：
An ultracompact optical fiber inline Mach-Zehnder interferometer for simultaneous refractive index and temperature sensing is demonstrated. The device is featured with precise sensing location and fabricated by femtosecond laser micromachining together with fusion splicing technique and followed by a slightly tapering process. There are two dips in the transmission spectrum of our proposed optical fiber sensor, which allows using the standard matrix inversion method for simultaneous two parameter determination. The refractive index and temperature sensitivity achieved are 103 nm/RIU (refractive index unit) and 73.07 pm/degrees C, respectively.
引用
收藏
页码：891 / 894
页数：4
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