A Fabry-Perot Interferometer Strain Sensor Based on Concave-Core Photonic Crystal Fiber

被引：70

作者：

Tian, Jiajun ^{[1
]}

Jiao, Yuzhu ^{[1
]}

Fu, Qi ^{[1
]}

Ji, Shaobo ^{[1
]}

Li, Zhigang ^{[1
]}

Quan, Mingran ^{[1
]}

Yao, Yong ^{[1
]}

机构：

[1] Harbin Inst Technol, Shenzhen Grad Sch, Sch Elect & Informat Engn, Shenzhen 518055, Guangdong, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2018年 / 36卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Fabry-Perot interferometer; concave-core photonic crystal fiber; fiber sensor; HIGH-TEMPERATURE; OPTICAL-FIBERS; CAVITY; FORCE;

D O I：

10.1109/JLT.2018.2797104

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 high-sensitivity Fabry-Perot interferometer (FPI) strain sensor based on a concave-core photonic crystal fiber (CPCF) was proposed and demonstrated. The FPI was formed by directly splicing a CPCF to a standard single-mode fiber. The CPCF was fabricated by cleaving a high-numerical-aperture solid-core photonic crystal fiber under axial tension using a traditional fiber cleaver. An FPI strain sensor with a cavity length of 4.85 mu m and a strain sensitivity of 31.58 pm/mu epsilon was successfully produced. The sensor also demonstrated a low temperature sensitivity of 0.653 pm/degrees C, reducing the cross-sensitivity between tensile strain and temperature. The benefits of the proposed sensor include simple fabrication, high strain sensitivity, and low temperature cross-sensitivity, making it attractive for practical applications.

引用

页码：1952 / 1958

页数：7

共 33 条

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