All-optical vector cesium magnetometer

Sun, Wei-Min; Huang, Qiang; Huang, Zong-Jun; Wang, Ping-Wen; Zhang, Jun-Hai

doi:10.1088/0256-307X/34/5/058501

Back

Journal article

All-optical vector cesium magnetometer

Sun, Wei-Min (孙伟民) College of Automation, Harbin Engineering University, Harbin, China - Key Lab of In-fiber Integrated Optics (Ministry Education), Harbin Engineering University, Harbin, China
Huang, Qiang (伟民) College of Automation, Harbin Engineering University, Harbin, China - Key Lab of In-fiber Integrated Optics (Ministry Education), Harbin Engineering University, Harbin, China
Huang, Zong-Jun (黄宗军) Key Lab of In-fiber Integrated Optics (Ministry Education), Harbin Engineering University, Harbin, China
Wang, Ping-Wen (王平稳) Key Lab of In-fiber Integrated Optics (Ministry Education), Harbin Engineering University, Harbin, China
Zhang, Jun-Hai (张军海) Key Lab of In-fiber Integrated Optics (Ministry Education), Harbin Engineering University, Harbin, China - Physics Department, University of Fribourg, Switzerland

2017

Published in:

Chinese Physics Letters. - 2017, vol. 34, no. 5, p. 058501

English Based on power modulation of a pump laser and precessional projection detection, we present an all-optical vector magnetometer of cesium, which has a demonstrated magnitude sensitivity of 80 fT/Hz 1/2 and an orientation sensitivity of 0.1°/Hz 1/2. In the device, four main factors are measured experimentally, which are the Larmor precession frequency of a polarized magnetic moment that depends on the modulus of the measured magnetic field only, two phase shifts and amplitude ratio of the precession projection in the two probe directions relative to the magnetic field orientation. This kind of magnetometer with high sensitivity in the range of the spatial angle is suitable for solving the inverse problem and geomagnetic navigation.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

Language