A strain-sensitivity-enhanced and asymmetric fiber-optic sensor based on anti-resonance hollow core fiber

被引：8

作者：

Yue, Bing ^{[1
]}

Feng, Jianxun ^{[1
]}

Liang, Weihong ^{[1
]}

Zeng, Haoran ^{[2
]}

Tao, Jin ^{[3
,4
,5
]}

Zhou, Guiyao ^{[1
,2
]}

Huang, Xuguang ^{[1
,2
]}

机构：

[1] South China Normal Univ, Guangdong Prov Key Lab Nanophoton Funct Mat & Devi, Guangzhou 510006, Peoples R China

[2] South China Normal Univ, Guangzhou Key Lab Special Fiber Photon Devices & A, Guangzhou 510006, Peoples R China

[3] China Informat Commun Technol Grp Corp CICT, State Key Lab Opt Commun Technol & Networks, Wuhan 430074, Peoples R China

[4] China Informat Commun Technol Grp Corp CICT, Natl Informat Optoelect Innovat Ctr, Wuhan 430074, Peoples R China

[5] Peng Cheng Lab, Shenzhen 518055, Peoples R China

来源：

MEASUREMENT | 2022年 / 202卷

基金：

中国国家自然科学基金;

关键词：

Anti-resonance hollow core fiber; Strain enhancement; High strain sensitivity; Sub-micron strain resolution; FABRY-PEROT-INTERFEROMETER; MULTIMODE INTERFERENCE; TEMPERATURE; CURVATURE;

D O I：

10.1016/j.measurement.2022.111837

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We proposed a novel strain-sensitivity-enhanced optical fiber sensor with high strain sensitivity realized by antiresonance hollow core fiber. The coreless fiber and the anti-resonance hollow core fiber were connected between the two single-mode fibers forming the sensor. Due to the unique structure, the sensor can be operated in transmission and reflection types. The results show that the strain sensitivity of the sensor can reach 23.02 dB/me operating at the transmission type by welding with 18 mm anti-resonance hollow core fiber. Given a power resolution of 0.01 dBm, the strain resolution of the sensor can reach similar to 0.43 mu epsilon. The sensor has the advantages of high strain sensitivity, outstanding repeatability, excellent time responsiveness and temperature insensitivity which can be used for real-time and high-precision strain measurements in large temperature difference environments. Besides, it was significant for the strain-sensitivity-enhancement effect studying and the development of a new optical fiber sensor with anti-resonance hollow core fiber.

引用

页数：9

共 37 条

[1] A STRAIN SENSOR USING TWISTED OPTICAL FIBERS [J].