High Strain Sensitivity Temperature Sensor Based on a Secondary Modulated Tapered Long Period Fiber Grating

Xiren Jin; Cuiting Sun; Shujie Duan; Weiliang Liu; Guoan Li; Shuo Zhang; Xudong Chen; Lei Zhao; Chunlian Lu; Xinghua Yang; Tao Geng; Weimin Sun; Libo Yuan

doi:10.1109/JPHOT.2019.2891245

IEEE Photonics Journal (Jan 2019)

High Strain Sensitivity Temperature Sensor Based on a Secondary Modulated Tapered Long Period Fiber Grating

Xiren Jin,
Cuiting Sun,
Shujie Duan,
Weiliang Liu,
Guoan Li,
Shuo Zhang,
Xudong Chen,
Lei Zhao,
Chunlian Lu,
Xinghua Yang,
Tao Geng,
Weimin Sun,
Libo Yuan

Affiliations

Xiren Jin: Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Cuiting Sun: ORCiD; Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Shujie Duan: Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Weiliang Liu: Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Guoan Li: Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Shuo Zhang: ORCiD; Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Xudong Chen: Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Lei Zhao: Aviation Key Laboratory of Science and Technology on Inertial Technology, FACRI, Xi'an
Chunlian Lu: Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Xinghua Yang: Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Tao Geng: ORCiD; Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Weimin Sun: Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Libo Yuan: ORCiD; Photonics Research Center, Guilin University of Electronics Technology, Guilin, China

DOI: https://doi.org/10.1109/JPHOT.2019.2891245
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 8

Abstract

Read online

A novel sensor structure has been proposed and experimentally investigated for simultaneous strain and temperature measurement. The structure is fabricated by weak power modulation of CO2 laser exposure on tapered long period fiber grating (LPFG). Compared with the transmission spectrum of the tapered LPFG, two peaks appear in the transmission spectrum of the novel structure. These resonance peaks exhibit different sensitivity responses; thus, simultaneous measurement of strain and temperature is realized by monitoring the wavelength shift of the two peaks. Experiment results indicate that strain sensitivities of the two peaks are 1.82 pm/με and 8.17 pm/με, and temperature sensitivities are 47.9 pm/°C and 65 pm/°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

About the journal

Abstract

Keywords