Study of the C→A transition excimer laser threshold condition
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Laboratory for Excimer Laser, Anhui Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences, Hefei 230031, China
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Corresponding author:
YU Yin-shan, ysyu@aiofm.ac.cn
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Received Date:
2004-06-24
Accepted Date:
2004-09-17
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Abstract
For the laser system performance,the threshold condition is of great significance.The threshold condition of C→A transition low gain,broadband-pulsed excimer laser is closely relative to the pump pulse.Based on the rate equations of four-level laser energy systems,the analytical methods of gain switching and Q-switch are used to study the threshold condition of the(C→A) transition low gain pulsed excimer laser.While the threshold conditions in the different gain duration are given.The analytical results show the threshold condition of the C→A transition low gain excimer laser is fundamentally different from the CW laser in short gain pulse,and depends on time integrated gain coefficient that has to exceed a critical value.
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Proportional views
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