The LD side-pumped Nd…YVO_4 532 nm quasi-continuous green laser is reported.The acousto-optic Q-switched operation and the laser diode side-pumped Nd…YVO_4 laser are used to get high-power linearly polarized 1064 nm laser output.High-power 532 nm green laser output is achieved by typeⅠphase-matched LiB_3O_5(LBO)as second harmonic generation crystal.An average output power of 23.5 Wat 532 nm is obtained under the condition of input current of 30 A,the repetition rate of 20 kHz and the 1064 nm fundamental wav...