Axial strain and temperature sensor based on tapered seven-core fiber operating at dispersion turning point

被引：1

作者：

Xu, Wenyan ^{[1
]}

Wu, Bing ^{[1
]}

Wei, Yalong ^{[1
]}

Zhang, Guoyu ^{[1
]}

Zhao, Yujia ^{[1
]}

Cui, Xiaojun ^{[1
]}

Peng, Feng ^{[1
]}

Yang, Jun ^{[2
]}

机构：

[1] Univ Jinan, Sch Phys & Technol, Jinan 250022, Peoples R China

[2] Guangdong Univ Technol, Sch Informat Engn, Guangzhou 510006, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2024年 / 174卷

基金：

中国国家自然科学基金;

关键词：

Optical fiber sensor; Seven-core fiber; Dispersion turning point; Axial strain sensor; Temperature sensor; MACH-ZEHNDER INTERFEROMETER; CORE FIBER;

D O I：

10.1016/j.optlastec.2024.110656

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An axial strain and temperature sensor based on a tapered seven-core fiber (SCF) operating at the dispersion turning point (DTP) is proposed. The tapered SCF sensor with DTP was fabricated by the one-step tapering method, and its axial strain characteristics and temperature characteristics were simulated and experimentally investigated. The experimental results show that the tapered SCF sensor operates near DTP with the highest axial strain sensitivity and temperature sensitivity, consistent with the simulation results. The maximum axial strain sensitivity of the tapered SCF sensor is 391.2 pm/mu epsilon in the range of 0-300 mu epsilon, and the maximum temperature sensitivity is 6.44 nm/degrees C in the range of 30-70 degrees C. The sensor is highly sensitive to axial strain and temperature. It is promising for measuring physical quantities such as weak strain and temperature.

引用

页数：10

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