应用国产的 80 8nm激光二极管 (LD)研制了声光调Q的Nd :YVO4 -KTP腔内倍频的准连续、单脉冲激光器 ,得到了TEM0 0 模、频率为 2 0kHz的准连续稳定的 532nm的绿光输出 ,阈值泵浦功率为 30 0mW。在连续 2W的泵浦功率下 ,准连续绿光输出为 12 0mW ,脉冲宽度为 4 0ns ,单脉冲能量为 50 μJ。通过对声光Q开关的驱动电源改造 ,得到了单脉冲激光输出。在分析计算的基础上 ,建立了 2W、80 8nmLD的冷却模型 ,构造了冷却模块 ,LD输出波长稳定 A quasi-continuous and single-pulse Nd: YVO4-KTP intracavity frequency doubling system was developed by using a domestic 80 8nm laser diode (LD). The TEM0 0 mode and quasi-continuous stable 532 nm Of the green output, the threshold pump power of 30 0mW. Under continuous 2W pump power, the quasi-continuous green output is 12 0 mW, the pulse width is 40 ns, and the single pulse energy is 50 μJ. Through the transformation of the drive power of the acousto-optic Q switch, a one-pulse laser output was obtained. On the basis of the analysis and calculation, the cooling model of 2W and 808nmLD is established, the cooling module is constructed, the output wavelength of LD is stable