三面共振反射器耦合Nd∶YAG振荡器获得光滑调Q脉冲

Smooth-pulse Nd∶YAG Q-switched Oscillator Coupled with Three-plan Resonant Reflector

光学共振反射器作为Nd∶YAG振荡器的耦合输出腔镜,具有很强的选纵模能力,三面共振反射器具有规则的反射峰调制结构。为获得稳定的单纵模光滑脉冲输出,理论上对振荡器结构参数作了优化设计,并指出振荡器宜在阈值附近工作,以充分发挥共振反射器的选纵模能力。实验上振荡器获得了 17mJ的光滑单纵模脉冲,光滑脉冲出现几率大于 97%

Optical resonant reflector (RR), as a coupled-output mirror of Nd∶YAG oscillator, has very strong ability for selecting longitudinal mode. Three-plan RR has more regular structure of modulated reflecting-spectrum. For outputting stable single longitudinal mode, it is optimized for oscillator parametric designing in theory and it is suggested that the oscillator should operate near threshold for full utilizing the mode selecting ability of RR. Great than 97% smooth pulses, with 17 mJ, are obtained in experiment.