Collection Of theses on high power laser and plasma physics, 2011, 9 (1): 2230, Published Online: Jun. 2, 2017
Distortion of ultrashort laser pulses in a spatial filter
Ultrashort laser pulse Ultrashort laser pulse Spatial filter Spatial filter Magnification Magnification Pulse broadening Pulse broadening Pulse distortion Pulse distortion
Abstract
By means of Collins diffraction integral, the propagation expression of an ultrashort laser pulse passing through a spatial filter is derived. The effects of the magnification of spatial filter on pulse broadening and distortion of pulse-front for the ultrashort optical pulse are analytically deduced and numerically simulated. It is found that pulse broadening and propagation time difference of a laser pulse getting through spatial filter is proportional to the magnification. As a conclusion, in an ultrashort pulse laser system with a large aperture, the effect of pulse broadening and distortion of pulse-front should be considered.
Pingping Sun, Dean Liu, Yanli Zhang, Yan Zhang, Fang Liu, Xuejie Zhang, Jianqiang Zhu. Distortion of ultrashort laser pulses in a spatial filter[J]. Collection Of theses on high power laser and plasma physics, 2011, 9(1): 2230.