Open AccessTime-frequency analysis for phase retrieval from traces of frequency resolved optical gating
Author(s) -
Yuqiang Deng,
Qingyue Wang,
Zhigang Zhang
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.6454
Subject(s) - frequency resolved optical gating , optics , phase retrieval , shearing (physics) , wavelet , phase (matter) , frequency analysis , computer science , gating , time–frequency analysis , algorithm , materials science , physics , fourier transform , artificial intelligence , telecommunications , laser , bandwidth limited pulse , quantum mechanics , ultrashort pulse , physiology , radar , composite material , biology
Based on the theory of wavelet-transform analysis for spectral phase retrieval from spectral shearing interferogram, we extract phases from the traces of frequency resolved optical gating (FROG) with time-frequency analysis method. The method enables the phases to be extracted from the ridges of FROG traces directly, and requires no iterative algorithm. For the flap ridges, accurate phases can be extracted. However, for the frequency-varying ridges, the results have great error at the tails of the pulses, and the reasons for error generation are analyzed.