从LD泵浦固体激光器优化设计原则出发,设计了一种微型二极管泵浦激光器,并对种子激光器的结构和参数进行了优化.该激光器运转稳定,输出光束质量高,光束发散角小,光-光转化效率为17.4%,斜率效率可达24%,输出功率可达80mW.将此种子激光注入到调Q激光器中,改善了调Q激光器的输出特性,使得激光脉冲的建立时间缩短了40ns,输出的横模场分布得到了明显改善.

According to the optimization principle for diode-pumped laser, one kind of mini diode-pumped laser for seed-injection is designed. Using the numerical method, the optimized design is presented laser gain media, coupling system and resonant cavity. The seed laser beam from mini diode-pumped laser was injected into Q-switched laser and output characteristics of Q-switched laser were studied. The experiment results show that this laser is stable, with high beam quality and small light beam divergence. The light-light efficiency is 17.4% and slope efficiency is 24%. The output power of this laser is about 80mW. The buildup time of laser pulse in power oscillator decreases by 40ns and the injected-seed laser field improve the distribution of output laser field.