Study on multi-pulse of high power electro-optical Q-switched Nd∶YAG laser

A electric-optical Q-switch pulse-array Nd∶YAG laser output with high energy is obtained.Timing of the pulse,pulse repetition,pulse number,pulse interval time can be adjusted.Repetition frequency 1~10Hz can be regulated.There are three pulse every multi-pulse,and the interval is greater than 200μs.The typical results,the maximum energy of the multi-pulse is up to 608 mJ,the double-pulse is 405mJ and the single-pulse is 200mJ when the interval of the pulse is 548μs.The single pulse width is 8ns and the divergence is 3.4mrad.