V3+∶YAG是一种新型的饱和吸收体,利用激光二极管(LD)抽运激光工作物质Nd∶YAG,V3+∶YAG被动调Q,成功地实现了1.319 μm全固态激光器的脉冲运转。在1.6 W的抽运功率条件下,使用小信号透过率为89%和96%的V3+∶YAG时,分别获得平均输出功率93 mW和192 mW,最小脉冲宽度(FWHM)7.9 ns和9.2 ns,重复频率8.4 kHz和27.8 kHz,峰值功率大于1.4 kW和750 W,脉冲能量11 μJ和6.9 μJ的1.319 μm脉冲激光输出,利用示波器的统计功能,测量了脉冲能量和重复频率的稳定度,结果表明4 h稳定度均优于5%。

V3+∶YAG is a new type of saturable absorber. LD-pumped Nd∶YAG lasers passively Q-switched at 1.319 μm with a V3+∶YAG were reported. When the pump power was 1.6 W, the results of average output power of 93 mW and 192 mW, minimum pulse width (FWHM) of 7.9 ns and 9.2 ns, pulse repetition rate of 8.4 and 27.8 kHz, peak power of greater than 1.4 kW and 750 W, pulse energy of 11 μJ and 6.9 μJ were obtained for the small signal transmission of 89% and 96%, respectively. The stability of pulse energy and repetition rate was measured by the statistic function of the oscillograph. The results showed that the stability was better than 5% for 4 h.