The purpose of this study is to ensure high output power and high beam quality of 1 064 nm and 532 nm laser collinear output.Firstly,the beam quality of 1 064 nm laser fundamental frequency was effectively controlled by using a master oscillator and power amplifier(MOPA),to achieve maximum average power of 70 W,repetition rate of 10 kHz,pulse width of 60 ns,and beam quality factor M2 of 3.9.Then using two power amplifiers,a 1 064 nm beam with average output power of 182.9 W and pulse width of 80 ns was gene...