统一展开理论应用于激光系统中的精度问题

The Accuracy Problem of the Application of the Unified Expansion Theory to Laser Systems

通过提高推导过程中精度的办法得到了更完善的统一展开理论（ＵＥＴ），且用更完善的ＵＥＴ具体计算了单模染料激光色损失模型的光强定态几率分布。

Within the frame of the unified expansion theory (UET), the expressions of the UET with higher accuracy are obtained by improving the accuracy of derivation, and the theory is then extended to laser systems. The color loss noise model for a single mode dye laser is studied with the improved UET and the expressions for the stationary probability distribution of beam intensity are obtained. A comparison shows that the results of the improved UET agree better with those by either numerical calculation or simulation.