Excessively tilted fiber grating-based vector magnetometer


A compact optic-fiber vector magnetometer is proposed and experimentally demonstrated, which is based on an excessively tilted fiber grating (Ex-TFG) assistant with the magnetic fluid (MF). Without any complicated processing, the cladding mode resonances of the bare Ex-TFG packaged by the MF show high sensitivity to slight perturbations by the magnetic field. Due to the excellent magneto-optical properties of the MF and the azimuth-dependent refractive index sensitivity of the Ex-TFG, such a magnetometer can achieve the magnetic field intensity sensitivity of 2.45 nm/mT and the orientation sensitivity of 0.41 nm/ deg. In addition, based on the spectral interrogation, the detection limit of the magnetic field intensity could reach around 8.1 μT at the minimum wavelength measurement accuracy of 0.02 nm.

Publication DOI: https://doi.org/10.1364/OL.44.002494
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
Funding Information: Funding. National Natural Science Foundation of China (NSFC) (61505244, 61605239); Fundamental Research Funds for the Central Universities; Huazhong University of Science and Technology (HUST) (2017KFYXJJ033); Science Fund for Creative Research Groups of
Additional Information: This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-44-10-2494. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Publication ISSN: 1539-4794
Last Modified: 03 Jun 2024 07:40
Date Deposited: 03 Jun 2019 15:03
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.osa ... i=ol-44-10-2494 (Publisher URL)
PURE Output Type: Article
Published Date: 2019-05-10
Accepted Date: 2019-04-16
Authors: Lu, Tean
Sun, Yuezhen
Moreno, Yarien
Sun, Qizhen
Zhou, Kaiming (ORCID Profile 0000-0002-6011-1912)
Wang, Hushan
Yan, Zhijun
Liu, Deming
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)



Version: Accepted Version

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