Collection Of theses on high power laser and plasma physics, 2008, 6 (1): 69, Published Online: Oct. 9, 2009
Analysis of Improved Contrast froma Chirped Pulse Amplification Laser System by Increasing the Beam Size in the Stretcher
Abstract
The impact of the stretcher on the contrast ratio of the out pulse is analyzed making use of the ray -tracing method , which is based on the contrast ratio model of chirped pulse.When the beam size in the stretcher is increased from 2 mm to 40 mm ,the contrast of the output pulse approximately increase two magnitude. When the input pulse is Sech2 ,the contrast of the output pulse is better than what the input pulse is Gassian or Rectangular.
YANG Qingwei, GUO Ailin, XIE Xinglong, ZHANG Fuling, GAO Qi, LI Meirong, LIN Zunqi. Analysis of Improved Contrast froma Chirped Pulse Amplification Laser System by Increasing the Beam Size in the Stretcher[J]. Collection Of theses on high power laser and plasma physics, 2008, 6(1): 69.
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