摘要
对于腔内含有KTP光学参变振荡器的调QNd∶YAG激光振荡器 ,利用简单的内腔光学参变振荡器动力学模型 ,用瞬态耦合波方程求解了抽运激光介质反转粒子数、抽运功率和信号光功率的时间演变特性 ,结果显示对于不同的抽运水平和光学参变振荡谐振腔结构 ,内腔光学参变振荡器可以产生一个或者多个信号光脉冲。实验中 ,通过改变谐振腔输出镜的反射率 ,得到了单个和多个信号光脉冲 ,实验结果与理论分析相吻合 ,最后还分析了内腔光学参变振荡器输出的能量和调谐特性。
For the case of a Q switched Nd∶YAG laser with a KTP parametric oscillator inside the laser cavity, the temporal evolutions of the population inversion and of the pump and signal intracavity power are discussed by using the simple model of coupled equations. The results show that the optical parametric oscillator can produce single or multi pulses, depending on the signal cavity finesse and the pumping level. The single and multi pulses were obtained by the different signal cavity reflectivity experimentally. The theoretical calculation was coincident with experiment results well. The characteristics of intracavity optical parametric oscillator are analyzed.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2001年第10期1228-1233,共6页
Acta Optica Sinica
基金
国家自然科学基金 (6 97780 0 6 )
