Three-axis magnetic field measurement based on dual-pump polarization with high sensitivity and orthogonality

Siran Li; Bozheng Xing; Xiujie Fang; Kun Wang; Yanan Gao; Quan Wei; Bangcheng Han

Results in Physics (Jun 2023)

Three-axis magnetic field measurement based on dual-pump polarization with high sensitivity and orthogonality

Siran Li,
Bozheng Xing,
Xiujie Fang,
Kun Wang,
Yanan Gao,
Quan Wei,
Bangcheng Han

Affiliations

Siran Li: Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology, Ministry of Education, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China; Hefei National Laboratory, Hefei 230088, China; Zhejiang Provincial Key Laboratory of Ultra-Weak Magnetic-Field Space and Applied Technology, Hangzhou Innovation Institute, Beihang University, Hangzhou 310051, China; China Academy of Space Technology, Beijing 100094, China; Shenyuan Honors College, Beihang University, Beijing 100191, China
Bozheng Xing: Hangzhou Institute of National Extremely-weak Magnetic Field Infrastructure, Hangzhou 310028, China; Corresponding authors at: Hangzhou Institute of National Extremely-weak Magnetic Field Infrastructure, Hangzhou 310028, China (B. Xing); Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology, Ministry of Education, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China (X. Fang).
Xiujie Fang: Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology, Ministry of Education, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China; Hefei National Laboratory, Hefei 230088, China; Zhejiang Provincial Key Laboratory of Ultra-Weak Magnetic-Field Space and Applied Technology, Hangzhou Innovation Institute, Beihang University, Hangzhou 310051, China; Corresponding authors at: Hangzhou Institute of National Extremely-weak Magnetic Field Infrastructure, Hangzhou 310028, China (B. Xing); Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology, Ministry of Education, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China (X. Fang).
Kun Wang: Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology, Ministry of Education, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China; Hefei National Laboratory, Hefei 230088, China; Zhejiang Provincial Key Laboratory of Ultra-Weak Magnetic-Field Space and Applied Technology, Hangzhou Innovation Institute, Beihang University, Hangzhou 310051, China
Yanan Gao: Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology, Ministry of Education, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China; Hefei National Laboratory, Hefei 230088, China; Zhejiang Provincial Key Laboratory of Ultra-Weak Magnetic-Field Space and Applied Technology, Hangzhou Innovation Institute, Beihang University, Hangzhou 310051, China
Quan Wei: Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology, Ministry of Education, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China; Hefei National Laboratory, Hefei 230088, China; Zhejiang Provincial Key Laboratory of Ultra-Weak Magnetic-Field Space and Applied Technology, Hangzhou Innovation Institute, Beihang University, Hangzhou 310051, China
Bangcheng Han: Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology, Ministry of Education, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China; Hefei National Laboratory, Hefei 230088, China; Zhejiang Provincial Key Laboratory of Ultra-Weak Magnetic-Field Space and Applied Technology, Hangzhou Innovation Institute, Beihang University, Hangzhou 310051, China

Journal volume & issue: Vol. 49
p. 106546

Abstract

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An optically pumped magnetometer (OPM) for three-axis magnetic field measurement is demonstrated based on dual-pump polarization in a time-sharing regime. By detecting light absorption, each pump beam can achieve high-sensitive transverse measurement under modulation magnetic fields around a near-zero field. After the combination and orthogonalization of two pumps according to the scale factors along the reference axis, a three-axis orthogonal measurement system is obtained. Compared with existing methods, this configuration reduces misalignment errors introduced by the nonorthogonality of the sensitive directions and avoid coupling errors introduced by cross-axis DC magnetic fields. The coupling among the three axes is below 0.39%. On this basis, this OPM performs equivalent performances of each axis measurement with high accuracy and realizes a high sensitivity of 10 fT/Hz1/2. This SERF OPM can be employed in wide variety of applications including biological magnetic detection and sensitive tests of fundamental physics.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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