ABSTRACT
The performance of pre-amplifier is very critical for obtaining an excellent output pulse form the main amplifier. To improve the stability of TW laser, we also constructed a kHz regenerative amplifier as the pre-amplifier and then decrease the repetition rate to 10Hz with a Pockels Cell and Glan prism. Figure 5 is the experimental layout for down repetition rate, a self-design electrical circuit was used to synchronize and delay the 1kHz
laser with the lOHz amplifier, then we enlarge the beam diameter and inject into the main amplifier further amplification.
