Numerical simulation for the characteristics of spectral interferometry between two linear chirped pulses

DONG Jun; PENG Han-sheng; WEI Xiao-feng; HU Dong-xia; ZHOU Wei; ZHAO Jun-pu; CHENG Wen-yong; LIU Lan-qin

The spectral phase shift of broadband pulse caused by transient random disturbance was investigated,based on the combination of the characteristics of linear chirped pulse and the spectral interferometry of two pulses.When the same component of both the pulse spectra meet on the frequency domain,the spectral interference is generated.Extracting spectral phase difference between both the linear chirped pulses from the spectral interferogram,it was simulated based on Fourier transform spectral interferometry(FTSI).The results show that reconstructed phase shift of chirped pulses is characteristic of spectral change,and this reconstruction algorithm is effective.This method is helpful to transient measurement of some physical quantity in ultrafast optics.

Corresponding author: PENG Han-sheng, penghsh@caep.ac.cn;

1. Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China

Received Date: 2008-04-01

Accepted Date: 2008-05-07

Available Online: 2009-06-25

Abstract: The spectral phase shift of broadband pulse caused by transient random disturbance was investigated,based on the combination of the characteristics of linear chirped pulse and the spectral interferometry of two pulses.When the same component of both the pulse spectra meet on the frequency domain,the spectral interference is generated.Extracting spectral phase difference between both the linear chirped pulses from the spectral interferogram,it was simulated based on Fourier transform spectral interferometry(FTSI).The results show that reconstructed phase shift of chirped pulses is characteristic of spectral change,and this reconstruction algorithm is effective.This method is helpful to transient measurement of some physical quantity in ultrafast optics.

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Reference (13)

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Numerical simulation for the characteristics of spectral interferometry between two linear chirped pulses

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