本文从四能级结构激光速率方程出发，对脉冲掺钛蓝宝石激光器的时间特性进行了理论研究。倍频调ＱＵｄ：ＹＡＣ激光器泵浦的掺钛蓝宝石激光器的输出脉宽和时间延时随泵浦能量、调谐波长和输出耦合率的变化而变化。所得的实验结果与理论结果相吻合。 In this paper, based on the four-level structure of the laser rate equation, the pulsed titanium-doped sapphire laser time characteristics of a theoretical study. Multiplier QUd: The output pulse width and time delay of a YAG laser-pumped Ti: sapphire laser vary with pump energy, tuning wavelength, and output coupling rate. The experimental results obtained are consistent with the theoretical results.