Research on mechanism and structure of all-fiber weak magnetic field atomic sensing

In this paper, combined with the high-sensitivity weak magnetic field measurement technique of atomic magnetometer structure and the high precision measurement advantage of optical fiber sensing technology, an all-fiber weak magnetic sensor (AFWMS) structure is proposed and studied deeply. The sensing principle of measuring the weak magnetic field by using the atomic magnetometer structure is analyzed. A sensor model for the weak magnetic field was stablished.