Fig. 1. System of spectrum-modulated polarization detection

Fig. 2. The modulated spectrum

Fig. 3. The modulated spectrum in the optical path difference domain

Fig. 4. Four Stokes vectors of 30° linear polarized light

Fig. 5. Comparison of normalized Stokes parameters reconstruction results of the target light

Fig. 6. The experimental devices

Fig. 7. Measured results of demodulation coefficients

Fig. 8. The intensity distribution map of the optical path difference field measured by experiments

Fig. 9. Result of stokes parameter recovery for different spectrometers

Fig. 10. Comparison of normalized restoration results of stokes parameters at 30 degrees under experimental conditions