Fig. 1. Principle diagram of microminiature Fourier transform spectrometer

Fig. 2. Light intensity of interferogram image point arrays with different aberrations. (a) Aberration-free; (b) spherical aberration; (c) coma

Fig. 3. Recovered spectra with different aberrations. (a) Spherical aberration; (b) coma

Fig. 4. Strehl ratio modulation curves for different aberrations. (a) Spherical aberration; (b)coma

Fig. 5. Phase error vs. optical path difference with different aberrations. (a) Spherical aberration; (b) coma

Fig. 6. Fourier spectra of Strehl ratio with different aberrations. (a) Spherical aberration; (b) coma

Fig. 7. Recovered spectra after Strehl ratio correction. (a) Spherical aberration Strehl ration correction; (b) coma Strehl ratio correction

Fig. 8. Normalized spectra error varying with aberration root-mean-square value. (a) Before Strehl ratio correction; (b) after Strehl ratio correction