Magnetic field search and locking scheme for all-optical single-beam atomic magnetometer

被引：0
|
作者：
张卫东 [1 ]
徐晓天 [2 ,3 ]
廖天祥 [2 ]
范靖云 [1 ,2 ,4 ,5 ]
杨胜军 [1 ,4 ,5 ]
机构：
[1] Shenzhen Institute for Quantum Science and Engineering, School of Science, Southern University of Science and Technology
[2] Department of Physics, School of Science, Southern University of Science and Technology
[3] Shenzhen Institute of Information Technology
[4] International Quantum Academy
[5] Guangdong Provincial Key Laboratory of Quantum Science and Engineering, Southern University of Science and
来源：
Chinese Optics Letters | 2025年 / 23卷 / 02期
关键词：
D O I：
暂无
中图分类号：
TM936 [磁数量测量及仪器];
学科分类号：
摘要：
Considering practical unknown magnetic detection, fast magnetic field search and locking scheme is needed in atomic magnetometers. Here, based on the in-phase response of atomic polarization rotation, we provide an iterative search and intensity-modulation feedback locking scheme for a single-beam nonlinear magneto-optical rotation(NMOR) atomic magnetometer. It takes about 0.8 s to find the unknown magnetic field with a search range of 10 to 104nT. The measurement accuracy is within(0.2% ± 4) nT, and the 3-dB bandwidth is 87 Hz. Our scheme should be useful in cases where variations of the magnetic field cover both the weak and strong field regimes.
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页码：49 / 54
页数：6
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