Abstract

A length-matched micro Fabry-Perot (FP) interferometer is proposed for strain measurement under irradiation environment. Theoretical simulation shows that a well length-matched FP sensor can achieve a very low drift of the cavity length and strain sensitivity in irradiation environment. In experiment, such an FP cavity is realized by laser micromachining. It shows a low cavity length drift of −0.037 µm and a strain sensitivity deviation of 0.52%, respectively, under gamma irradiation. Meanwhile, the intensity of interference fringes is also stable. As a result, such a length-matched FP cavity is a very promising candidate for strain sensing in radiative environments.

Details

Title
Design of an All-Fiber Fabry-Perot Sensor for Strain Measurement in Radiative Environment
Author
Yang, Tingting 1 ; Ran, Zengling 1 ; He, Xiu 1 ; Gan, Lupeng 1 ; He, Zhengxi 2 ; Zhu, Jialiang 3 ; He, Peng 3 ; Li, Zhuoyue 3 ; Sun, Dong 4 

 Key Laboratory of Optical Fiber Sensing & Communications (Ministry of Education), University of Electronic Science and Technology of China, Chengdu, China (GRID:grid.419897.a) (ISNI:0000 0004 0369 313X) 
 Key Laboratory of Optical Fiber Sensing & Communications (Ministry of Education), University of Electronic Science and Technology of China, Chengdu, China (GRID:grid.419897.a) (ISNI:0000 0004 0369 313X); Nuclear Power Institute of China, Science and Technology on Reactor System Design Technology Laboratory, Chengdu, China (GRID:grid.464276.5) (ISNI:0000 0001 0381 3718) 
 Nuclear Power Institute of China, Science and Technology on Reactor System Design Technology Laboratory, Chengdu, China (GRID:grid.464276.5) (ISNI:0000 0001 0381 3718) 
 University of Electronic Science and Technology of China, School of Information and Communication Engineering, Chengdu, China (GRID:grid.54549.39) (ISNI:0000 0004 0369 4060) 
Pages
220418
Publication year
2022
Publication date
Dec 2022
Publisher
Springer Nature B.V.
ISSN
16749251
e-ISSN
21907439
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2890044790
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.