Fiber Bragg grating temperature sensor for marine application

Guangyao Wang; Jianping Sun; Ting Li; Hongjun Wang; Jiahao Li

doi:10.1117/12.2644131

19 December 2022 Fiber Bragg grating temperature sensor for marine application

Guangyao Wang, Jianping Sun, Ting Li, Hongjun Wang, Jiahao Li

Proceedings Volume 12321, Advanced Sensor Systems and Applications XII; 123211C (2022) https://doi.org/10.1117/12.2644131
Event: SPIE/COS Photonics Asia, 2022, Online Only

Conference Poster

Abstract

Fiber Bragg grating (FBG) sensor for marine exploration has gradually attracted people's attention because of its natural characteristics of low investment and high expansion capability. However, it is well known that FBG is not only sensitive to temperature, but also affected by strain, pressure, vibration, refractive index etc. The cross-sensitivity of FBG results in large measurement error for fiber temperature measurement. As an important error source of optical fiber temperature sensing, strain has attracted much attention of researchers. In order to eliminate the interference of strain on FBG temperature measurement, in this paper, we propose a FBG sensor for ocean applications. Two fiber Bragg gratings with different central wavelengths are cascaded to realize the decoupling of temperature and strain sensing. Experimental results show that the temperature sensitivity of the proposed sensor can reach to 9.49 pm/°C in the range from -5°C to 35°C.

Citation Download Citation

Guangyao Wang, Jianping Sun, Ting Li, Hongjun Wang, and Jiahao Li "Fiber Bragg grating temperature sensor for marine application", Proc. SPIE 12321, Advanced Sensor Systems and Applications XII, 123211C (19 December 2022); https://doi.org/10.1117/12.2644131

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