在分析了半导体激光泵浦与氪灯泵浦激光器各自特点的基础上 ,提出了在氪灯泵浦腔内倍频 Nd:YAG激光器上进行不稳定性和混沌研究以及探索混沌消除方法的设想。给出了理论分析和实验装置 ,实验测量得到了混沌激光辐射和功率谱 ,数值分析给出相应的时间行为和相空间吸引子。当在腔内引入 Nd:YAG色心调制晶体后 ,实验上得到了稳定的周期输出 ,从而实现了混沌的消除。 Based on the analysis of the respective characteristics of the semiconductor laser pump and the krypton lamp pumped laser, the research on the instability and chaos in krypton lamp pumped Nd: YAG laser and the exploration of the method to eliminate the chaos are put forward. The theoretical analysis and experimental setup are given. The experimental measurements show the chaotic laser radiation and power spectrum. The numerical analysis gives the corresponding time behavior and phase space attractor. When Nd: YAG colorimetric crystal was introduced into the cavity, the stable periodic output was obtained experimentally, and the chaos was eliminated.