Sensitivity Enhanced Magnetic Field Sensor Based on Hollow Core Fiber Fabry-Perot Interferometer and Vernier Effect

Jian Xu; Kui Huang; Jingjing Zheng; Jing Li; Li Pei; Haidong You; Tigang Ning

doi:10.1109/JPHOT.2022.3188640

IEEE Photonics Journal (Jan 2022)

Sensitivity Enhanced Magnetic Field Sensor Based on Hollow Core Fiber Fabry-Perot Interferometer and Vernier Effect

Jian Xu,
Kui Huang,
Jingjing Zheng,
Jing Li,
Li Pei,
Haidong You,
Tigang Ning

Affiliations

Jian Xu: ORCiD; Key Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing, China
Kui Huang: Beijing Institute of Spacecraft Environment Engineering, Beijing, China
Jingjing Zheng: ORCiD; Key Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing, China
Jing Li: ORCiD; Key Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing, China
Li Pei: ORCiD; Key Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing, China
Haidong You: Science and Information College, Qingdao Agricultural University, Qingdao, China
Tigang Ning: ORCiD; Key Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing, China

DOI: https://doi.org/10.1109/JPHOT.2022.3188640
Journal volume & issue: Vol. 14, no. 4
pp. 1 – 5

Abstract

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A simple to fabricate, low cost, and high Sensitivity magnetic sensor is proposed in this paper. The sensor is composed of two parallel Fabry-Perot (FP) interferometers which are fabricated by fusing single mode fiber and hollow core fiber. Two FP interferometers have similar free spectral ranges to achieve vernier effects. The experimental result shows the magnetic field sensitivity of the proposed sensor is 101pm/mT, which is about seven times higher than the single FP cavity.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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