Collection Of theses on high power laser and plasma physics, 2012, 10 (1): 1704, Published Online: Jun. 2, 2017
Spatial degradation of pulse contrast in the focal plane for pulsed laser beams from chirped-pulse amplification system
Chirped pulse amplification Chirped pulse amplification Pulse contrast ratio Pulse contrast ratio Beam focusing Beam focusing
Abstract
A two-dimension model is presented to analyze the spatial dependence of pulse contrast in the focal plane. The parameters of the SHENGUANG (SG) II laser system are demonstrated as examples. Comparing with the degradation in the beam centroid, the pulse contrast degrades more seriously in the transverse. This spatial degradation of pulse contrast can be improved, such as by controlling the spatial spectrum clipping.
Qingwei Yang, Mingwei Liu, Yanhai Wang, Xinglong Xie, Ailin Guo, Zunqi Lin. Spatial degradation of pulse contrast in the focal plane for pulsed laser beams from chirped-pulse amplification system[J]. Collection Of theses on high power laser and plasma physics, 2012, 10(1): 1704.
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