Output energy stability of four-pass amplification system

In accordance with the built-up structure of the main amplifier in technical integration experiment line (TIL), the effects of the injected energy, amplifier gain and transmission on the output energy stability were calculated. Experimental results show that the greater the injected energy, the weaker the effect of the injected energy on the output energy. The effect of the small gain coefficient was greater than that of the injected energy. And the effect of the loss component transmission on the output energy stability in amplification cavity was more obvious than the effect on the output energy stability out of amplification cavity. The level of the output energy stability of TIL was analyzed according to the experimental data. For the 3 ns temporally flat pulse, to meet the requirement