报道了连续激光二极管单端抽运Nd:YVO4环形腔结构的单频激光器实验研究。为了减小激光器的热效应,实验中采用了一种新型的抽运结构形式并获得了良好的实验效果。在室温下工作物质采用自然散热,当抽运功率为22.5 W时,获得了9.9 W的1064 nm单频激光输出,对应的光-光转换效率约为44.1%;光束质量为M2x=1.14和M2y=1.12;输出激光1 min内频率漂移约为83.7 MHz;7 h功率不稳定度优于0.5%。 The experimental study of a single-frequency laser with a single-ended pumped Nd: YVO4 annular cavity in a continuous laser diode was reported. In order to reduce the thermal effect of the laser, a new type of pumping structure was adopted and a good experimental result was obtained. When the pump power was 22.5 W, the single-frequency 1064 nm laser output was obtained at 9.9 W, corresponding to a light-to-light conversion efficiency of 44.1%. The beam qualities were M2x = 1.14 and M2y = 1.12; the output laser frequency drift within 1 min is about 83.7 MHz; and the power instability at 7 h is better than 0.5%.