Intensity-demodulated fiber-optic vector magnetic field sensor based on fiber-optic evanescent field

Liangquan Zhu; Qijing Lin; Kun Yao; Na Zhao; Ping Yang; Zhuangde Jiang

doi:10.1016/j.optlastec.2022.108087

Intensity-demodulated fiber-optic vector magnetic field sensor based on fiber-optic evanescent field

Liangquan Zhu
, Qijing Lin
, Kun Yao
, Na Zhao
, Ping Yang
, Zhuangde Jiang

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

A high-sensitivity intensity-demodulated fiber-optic evanescent field sensor is proposed for vector magnetic field measurement. The structure was fabricated by bending a section of single mode fiber into a U shape under the flame of alcohol burner, and then coated with magnetic fluid. By bending the fiber into a U shape, a non-centrosymmetric fiber-optic evanescent field is distributed on the cross section of fiber. Combing with the magnetic-field-dependent anisotropy of magnetic fluid, a high intensity sensitivity of 2.481 dB/mT and a high direction sensitivity of 0.182 dB/° were obtained. Due to the simple structure, high sensitivity and low cost, the proposed fiber-optic sensor has potential application in the vehicle navigation, aviation, and biomedical fields.

Original language	English
Article number	108087
Journal	Optics and Laser Technology
Volume	152
DOIs	https://doi.org/10.1016/j.optlastec.2022.108087
State	Published - Aug 2022

Keywords

Fiber-optic sensor
Intensity demodulation
Magnetic field direction
Magnetic field sensor
Magnetic fluid

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10.1016/j.optlastec.2022.108087

Cite this

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title = "Intensity-demodulated fiber-optic vector magnetic field sensor based on fiber-optic evanescent field",

abstract = "A high-sensitivity intensity-demodulated fiber-optic evanescent field sensor is proposed for vector magnetic field measurement. The structure was fabricated by bending a section of single mode fiber into a U shape under the flame of alcohol burner, and then coated with magnetic fluid. By bending the fiber into a U shape, a non-centrosymmetric fiber-optic evanescent field is distributed on the cross section of fiber. Combing with the magnetic-field-dependent anisotropy of magnetic fluid, a high intensity sensitivity of 2.481 dB/mT and a high direction sensitivity of 0.182 dB/° were obtained. Due to the simple structure, high sensitivity and low cost, the proposed fiber-optic sensor has potential application in the vehicle navigation, aviation, and biomedical fields.",

keywords = "Fiber-optic sensor, Intensity demodulation, Magnetic field direction, Magnetic field sensor, Magnetic fluid",

author = "Liangquan Zhu and Qijing Lin and Kun Yao and Na Zhao and Ping Yang and Zhuangde Jiang",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2022",

month = aug,

doi = "10.1016/j.optlastec.2022.108087",

language = "英语",

volume = "152",

journal = "Optics and Laser Technology",

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TY - JOUR

T1 - Intensity-demodulated fiber-optic vector magnetic field sensor based on fiber-optic evanescent field

AU - Zhu, Liangquan

AU - Lin, Qijing

AU - Yao, Kun

AU - Zhao, Na

AU - Yang, Ping

AU - Jiang, Zhuangde

PY - 2022/8

Y1 - 2022/8

N2 - A high-sensitivity intensity-demodulated fiber-optic evanescent field sensor is proposed for vector magnetic field measurement. The structure was fabricated by bending a section of single mode fiber into a U shape under the flame of alcohol burner, and then coated with magnetic fluid. By bending the fiber into a U shape, a non-centrosymmetric fiber-optic evanescent field is distributed on the cross section of fiber. Combing with the magnetic-field-dependent anisotropy of magnetic fluid, a high intensity sensitivity of 2.481 dB/mT and a high direction sensitivity of 0.182 dB/° were obtained. Due to the simple structure, high sensitivity and low cost, the proposed fiber-optic sensor has potential application in the vehicle navigation, aviation, and biomedical fields.

AB - A high-sensitivity intensity-demodulated fiber-optic evanescent field sensor is proposed for vector magnetic field measurement. The structure was fabricated by bending a section of single mode fiber into a U shape under the flame of alcohol burner, and then coated with magnetic fluid. By bending the fiber into a U shape, a non-centrosymmetric fiber-optic evanescent field is distributed on the cross section of fiber. Combing with the magnetic-field-dependent anisotropy of magnetic fluid, a high intensity sensitivity of 2.481 dB/mT and a high direction sensitivity of 0.182 dB/° were obtained. Due to the simple structure, high sensitivity and low cost, the proposed fiber-optic sensor has potential application in the vehicle navigation, aviation, and biomedical fields.

KW - Fiber-optic sensor

KW - Intensity demodulation

KW - Magnetic field direction

KW - Magnetic field sensor

KW - Magnetic fluid

UR - https://www.scopus.com/pages/publications/85126974889

U2 - 10.1016/j.optlastec.2022.108087

DO - 10.1016/j.optlastec.2022.108087

M3 - 文章

AN - SCOPUS:85126974889

SN - 0030-3992

VL - 152

JO - Optics and Laser Technology

JF - Optics and Laser Technology

M1 - 108087

ER -

Intensity-demodulated fiber-optic vector magnetic field sensor based on fiber-optic evanescent field

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Keywords

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