An Optical Fiber Twist Sensor With Temperature Compensation Mechanism Based on T-SMS Structure

Yujian Li; Ping Lu; Zhiyuan Qu; Wei Zhang; Wenjun Ni; Deming Liu; Jiangshan Zhang

doi:10.1109/JPHOT.2019.2957538

IEEE Photonics Journal (Jan 2020)

An Optical Fiber Twist Sensor With Temperature Compensation Mechanism Based on T-SMS Structure

Yujian Li,
Ping Lu,
Zhiyuan Qu,
Wei Zhang,
Wenjun Ni,
Deming Liu,
Jiangshan Zhang

Affiliations

Yujian Li: School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, China
Ping Lu: ORCiD; School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, China
Zhiyuan Qu: School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, China
Wei Zhang: School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, China
Wenjun Ni: ORCiD; School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, China
Deming Liu: School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, China
Jiangshan Zhang: Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan, China

DOI: https://doi.org/10.1109/JPHOT.2019.2957538
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 8

Abstract

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A new optical fiber twist sensor with temperature compensation mechanism is designed and experimentally demonstrated. The main structure of this twist sensor is a torsion perturbation point cascaded with single mode-multimode-single mode (SMS) fiber structure. The experimental results show that the twist sensor has ability to distinguish the twist direction with sensitivities of 9.5 pm/° and 34.7 pm/° at the chosen dips in the range from -100° (CCW) to 140° (CW). Furthermore, the temperature response characteristic of the sensor is also researched through experiment. Temperature sensitivities of 71.8 pm/°C and 65.2 pm/°C can be obtained at the same dips in the range from 20 °C to 75 °C. In addition, the temperature's influence can be compensated with post-measurement calculation through the cross-matrix. The theoretical resolutions of twist and temperature simultaneous measurement are ±0.084° and ±0.32 °C, respectively.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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