两种近似下被动调Q速率方程模型的比较研究

Comparison of rate equation model under two approximations for passively Q-switched lasers

以被动调Q激光器为研究对象,给出了平面波近似与考虑粒子数空间分布的速率方程模型,并对速率方程进行了归一化处理,数值求解了速率方程,分析了各综合参量对激光脉冲性能的影响,并与实验结果进行了比较,分析结果表明:考虑腔内粒子数空间分布时速率方程理论结果更贴近实际。

It is given out the rate equation model for passively Q-switched lasers under the plane wave approximation and taking particle space distribution into consideration.Normalization handling for rate equation has been carried out.Numerical analysis of the rate equation has been made.The influence of each comprehensive parameter for laser pulse property has b作een analyzed.Experimental results are compared with the theoretical results.It shows that the theoretical result is more accurate if taking particle space distribution into consideration.