Temperature-Insensitive Ferrofluid-Clad Microfiber Bragg Grating for Magnetic Field Sensing

Haimei Luo; Yangyang Liu; Liyuan Nie; Zeng Wang; Xiaoyong Gao; Yifan Wang; Jiajia Zhao; Guiqiang Liu; Shaoyi Xu

doi:10.3390/photonics10030249

Photonics (Feb 2023)

Temperature-Insensitive Ferrofluid-Clad Microfiber Bragg Grating for Magnetic Field Sensing

Haimei Luo,
Yangyang Liu,
Liyuan Nie,
Zeng Wang,
Xiaoyong Gao,
Yifan Wang,
Jiajia Zhao,
Guiqiang Liu,
Shaoyi Xu

Affiliations

Haimei Luo: Key Laboratory of Optoelectronics and Telecommunication of Jiangxi Province, Department of Photoelectric Information Science and Engineering, Jiangxi Normal University, Nanchang 330022, China
Yangyang Liu: Key Laboratory of Optoelectronics and Telecommunication of Jiangxi Province, Department of Photoelectric Information Science and Engineering, Jiangxi Normal University, Nanchang 330022, China
Liyuan Nie: Key Laboratory of Optoelectronics and Telecommunication of Jiangxi Province, Department of Photoelectric Information Science and Engineering, Jiangxi Normal University, Nanchang 330022, China
Zeng Wang: Key Laboratory of Optoelectronics and Telecommunication of Jiangxi Province, Department of Photoelectric Information Science and Engineering, Jiangxi Normal University, Nanchang 330022, China
Xiaoyong Gao: Key Laboratory of Optoelectronics and Telecommunication of Jiangxi Province, Department of Photoelectric Information Science and Engineering, Jiangxi Normal University, Nanchang 330022, China
Yifan Wang: Key Laboratory of Optoelectronics and Telecommunication of Jiangxi Province, Department of Photoelectric Information Science and Engineering, Jiangxi Normal University, Nanchang 330022, China
Jiajia Zhao: School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, China
Guiqiang Liu: Key Laboratory of Optoelectronics and Telecommunication of Jiangxi Province, Department of Photoelectric Information Science and Engineering, Jiangxi Normal University, Nanchang 330022, China
Shaoyi Xu: School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, China

DOI: https://doi.org/10.3390/photonics10030249
Journal volume & issue: Vol. 10, no. 3
p. 249

Abstract

Read online

In this paper, a temperature-insensitive ferrofluid (FF)-clad microfiber Bragg Grating (MF-BG) magnetic field sensor is proposed. Through optimizing the diameter of MF-BG, we can effectively suppress its thermal property. The experimental research results show that when the diameter of MF-BG is ~2.94 μm, its reflection spectrum shift owing to ambient temperature change can be substantially small within the range of 20–80 °C. The thermal stable sensor has a magnetic field sensitivity of 0.667 pm/Gs with a linearity of more than 0.985 at 20 °C.

Published in Photonics

ISSN: 2304-6732 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: http://www.mdpi.com/journal/photonics

About the journal

Abstract

Keywords