Theoretical research on reconstruction of phase perturbation in chirped pulse spectral interferometry

Reconstruction of phase perturbation in chirped pulse spectral interferometry is theoretically studied. As for spectral interferogram approximating to the fact, the wavelet transform and Fourier transform are used to reconstruct phase perturbation in time domain. The reconstruction errors are affected by the parameters of filter employing Fourier transform, however, when the wavelet transform is used, it is not necessary to carry on filtering specially, therefore uncertainties of reconstruction errors are avoided.