High-sensitivity temperature optical sensor based on long-period fiber grating

Jin Wang; Li Wang; Huanhuan Yan

doi:10.1117/12.2505934

15 November 2018 High-sensitivity temperature optical sensor based on long-period fiber grating

Jin Wang, Li Wang, Huanhuan Yan

Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109643A (2018) https://doi.org/10.1117/12.2505934
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

Abstract

We propose a high-sensitivity temperature sensor with a long-period fiber grating (LPFG) using Mach-Zehnder and Sagnac interference of the optical path. The LPFG sensor achieved a good repeatability and stability of temperature response with a sensitivity of 0.083nm/°C in the range of 40°C-120°C. Comparing to the traditional fiber Bragg grating (FBG) sensor, the LPFG sensor shows 10 times higher temperature sensitivity than that of the FBG, so the problem of low sensitivity of FBG is solved. Otherwise, Mach-Zehnder and Sagnac interference of the optical path have the advantage of simple structure and good practicability which can replace the complex optical path in the special environment.

Citation Download Citation

Jin Wang, Li Wang, and Huanhuan Yan "High-sensitivity temperature optical sensor based on long-period fiber grating", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109643A (15 November 2018); https://doi.org/10.1117/12.2505934

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