PDF《全固态 kHz 啁啾脉冲飞秒激光放大器》

21 (3): 219―221. [ 7] Koechner W. Solid state laser engineering[ M] . Berlin: H eidelberg , 1996. [ 8] Yanovsky V , Felix C , Mourou G , et al. Why ring regenerative amplification (regen)[ J] . Appl P hys B , 2002, 74(S0): 181―183. kHz pulse- pumped Ti : sapphire regenerative amplifier WANG Zhao - hua, WEI Zhi- yi, WANG Peng , LING Wei - jun , TIAN Jin- rong , ZHANG Jie (Laboratory o f Optical Physics , Institute of Physics , Chinese Academy o f Sciences , Bei jing

100080 , China) Abstract: In order to get ult ra - short intensity laser pulses, it is necessary to amplify the laser pulses from nJ level to mJ lev- el. The regen amplifier is the best w ay to get high- energy laser pulse. It can amplify the seed f rom nJ level to mJ level quickly. And the output laser has a good spatial mode. A Ti: sapphire regenerative amplifier was designed in this paper. Otherwise, in or- der to make the output laser stable, a

1 kH z

527 nm green laser was used as the pump laser in the experiment. Using such a Ti : sapphire regenerative amplifier, a

12 nJ seed w hich was generated f rom a self mode - locking Ti: sapphire oscillator was amplified to energy of 2.

3 mJ in a pulse at

1 kHz. The spectrum of the amplifier w as also measured. When the

40 nm seed w as inject........