采用磷酸钛氧铷(RTP)电光偏转器作为调Q开关,实现了连续激光二极管(LD)端面抽运Nd…YVO_4的激光调Q运转。实验研究了输出耦合镜透射率不同、重复频率不同时激光器调Q的输出特性。当输出耦合镜透射率为60%,在5kHz重复频率运转时,获得了平均输出功率为1.22 W、脉冲宽度为1.0ns、峰值功率为244kW的调Q脉冲输出;当重复频率为20kHz时,得到的平均输出功率为2.67 W,脉冲宽度为2.2ns,峰值功率为60.7kW,对应斜率效率为37%,光束质量因子M2x=1.226,M2y=1.229。并使用磷酸钛氧钾(KTP)晶体对激光器输出的1064nm激光进行了腔外倍频,获得了重复频率为20kHz、平均输出功率为1.33 W的532nm绿光输出,倍频效率为50%。 A Q-switched Q-switched RTP electro-optic deflector was used to realize the laser Q-switched operation of continuous laser diode (LD) end-pumped Nd ... YVO_4. Experimental study of the output coupling mirror transmittance, the different repetition frequency laser Q output characteristics. When the output coupling mirror transmissivity is 60% and operating at 5kHz repetition rate, a Q-switched Q-pulse output with an average output power of 1.22 W, a pulse width of 1.0ns and a peak power of 244kW is obtained. When the repetition frequency is 20kHz, The average output power of 2.67 W, pulse width of 2.2ns, the peak power of 60.7kW, corresponding to the slope efficiency of 37%, the beam quality factor M2x = 1.226, M2y = 1.229. The KTP crystal was used to excite the 1064nm laser output from the laser. The average output power was 532nm with an average output power of 1.33 W and the frequency doubling efficiency was 50%.