Simultaneous strain and temperature sensing with a compact dual fiber Bragg grating structure

Xinran Dong; Jie Zheng; Zi'an Wang; Zeng Li; Xiaoyan Sun

doi:10.1117/12.3006395

18 December 2023 Simultaneous strain and temperature sensing with a compact dual fiber Bragg grating structure

Xinran Dong, Jie Zheng, Zi'an Wang, Zeng Li, Xiaoyan Sun

Proceedings Volume 12968, AOPC 2023: Optic Fiber Gyro ; 1296810 (2023) https://doi.org/10.1117/12.3006395
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

A sensor for dual-parameter sensing of strain and temperature by dual fiber Bragg gratings (FBGs) structure was proposed and demonstrated. The structure with a traditional FBG (FBG-1) and a strain-assisted FBG (FBG-2) and were fabricated by femtosecond laser phase mask technology. The sensor has shown a positive wavelength sensitivity in temperature and strain, whose are 11.39 pm/°C and 0.5824 pm/με for FBG-1, and 11.34 pm/°C and 0.5831 pm/με for FBG-2, respectively. Meanwhile, the reflection intensities of two FBGs have exhibited a linear change in strain, and a sensitivity of 1.7275×10^-4 dB/με and -2.018×10^-4 dB/με are achieved. Moreover, the sensor has merits of simple fabrication, compact size and high reflectivity, which has shown a good prospect in multi-parameter sensing fields.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xinran Dong, Jie Zheng, Zi'an Wang, Zeng Li, and Xiaoyan Sun "Simultaneous strain and temperature sensing with a compact dual fiber Bragg grating structure", Proc. SPIE 12968, AOPC 2023: Optic Fiber Gyro , 1296810 (18 December 2023); https://doi.org/10.1117/12.3006395

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available