Fig. 1. Schematic of the sensor's structure

Fig. 2. Rotation angle of polarized light through magnetic domains in different directions

Fig. 3. Superposition of light intensity after passing through the PBS

Fig. 4. Voltage signals as function of magnetic field

Fig. 5. Faraday rotation angle as a function of magnetic field

Fig. 6. Schematic of the experimental setup

Fig. 7. Signal calibration curve measured by experiment

Fig. 8. The relationship between the VL measured by experiment and the temperature

Fig. 9. The relationship between the rotation angle measured by experiment and magnetic field

Fig. 10. The accuracy comparison of four error models