Fig. 1. Single-beam miniature SERF atomic magnetometer. (a) Schematic; (b) probe picture; (c) probe structure

Fig. 2. Output voltage noise power spectral density (PSD) of atomic magnetometer before and after compensation

Fig. 3. Compensation magnetic field applied along x-axis versus frequency of pumping laser

Fig. 4. Optical frequency shift and absorption curves. (a) Curve of optical frequency shift; (b) curve of light absorption after suppression of optical frequency shift

Fig. 5. Coupling coefficients between y and z axes before and after suppression of optical frequency shift

Fig. 6. Response of sensitive axis of atomic magnetometer before and after suppression of optical frequency shift

Fig. 7. Performance test results. (a) Amplitude-frequency response curves of SERF atomic magnetometer before and after optical frequency shift suppression; (b) sensitivity curves of SERF atomic magnetometer before and after optical frequency shift suppression; (c) response curves before and after optical frequency shift suppression with local magnification shown in inset