J4 ›› 2014, Vol. 31 ›› Issue (6): 678-682.

• Laser Tech. and Devices • Previous Articles     Next Articles

Effects of shaping factor on spectral phase reconstruction based on wavelet analysis

Wen Ruhong, Yi miao, Huang Ersong, Xiao Pingping   

  1. 1 Physics Science and Technology College, Yichun university, Yichun 336000, China; 2 Liberal Arts and Communication College, Yichun university, Yichun 336000 China
  • Received:2014-02-20 Revised:2014-03-07 Published:2014-11-28 Online:2014-11-17

Abstract: In order to measure ultrashort pulse more accurate, wavelet transform was applied to spectral phase interferometry of direct electric reconstruction (SPIDER) using joint time frequency analysis and multi-scale analysis feature. The given pulse was simulated based on wavelet transform. It is discussed that the influence of shaping factor to error of retrieval phase. The selecting principle of shape factor was determined. The characterization of TI: sapphire laser was measured with SPIDER based on wavelet transform. The comparison with Fourier transform prove the precision of the above discussion.

Key words: quantum optics, shape factor, wavelet transform, SPIDER

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