Demodulation algorithm for optical fiber fabry-perot interference sensor

Wang Wenhua; Wu Weina; Xiong Zhengye; Shi Wenqing; Luo Yuanzheng; Tian Xiuyun; Chen Zhishan

doi:10.1051/matecconf/202133604010

MATEC Web of Conferences (Jan 2021)

Demodulation algorithm for optical fiber fabry-perot interference sensor

Wang Wenhua,
Wu Weina,
Xiong Zhengye,
Shi Wenqing,
Luo Yuanzheng,
Tian Xiuyun,
Chen Zhishan

Affiliations

Wang Wenhua: School of Electronic and Information Engineering, Guangdong Ocean University
Wu Weina: School of mathematics and computer, Guangdong Ocean University
Xiong Zhengye: School of Electronic and Information Engineering, Guangdong Ocean University
Shi Wenqing: School of Electronic and Information Engineering, Guangdong Ocean University
Luo Yuanzheng: School of Electronic and Information Engineering, Guangdong Ocean University
Tian Xiuyun: School of Electronic and Information Engineering, Guangdong Ocean University
Chen Zhishan: School of Electronic and Information Engineering, Guangdong Ocean University

DOI: https://doi.org/10.1051/matecconf/202133604010
Journal volume & issue: Vol. 336
p. 04010

Abstract

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In view of resolution of optical fiber Fabry-Perot (FP) interference sensor, this paper analyses and researches high resolution demodulation algorithms including fast Fourier transform demodulation algorithm, cross-correlation calculation demodulation algorithm, vernier demodulation algorithm. Through continuous improvement, the vernier demodulation algorithm has achieved a resolution of 0.084nm. And it has a resolution of 2.3Pa when the vernier demodulation algorithm was applied to osmotic pressure measurement.

Published in MATEC Web of Conferences

ISSN: 2261-236X (Online)
Publisher: EDP Sciences
Country of publisher: France
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: http://www.matec-conferences.org

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