二极管泵浦准三能级板条固体激光器的优化设计

基于最大激光增益条件，分析和优化了二极管泵浦准三能级Yb∶YAG固体板条激光器的激光增益、板条的最佳光学长度和最佳宽度参数。结果表明：在低功率侧面泵浦条件下，板条增益介质的掺杂浓度和板条宽度满足一定的关系，这为研究该类激光器提供了一条有效途径，其结果可应用于其他准三能级固体激光器设计。

Optimized analysis of the slab configuration in diode-pumped quasi-three-level solid-state lasers

Based on the condition of the maximized laser gain, the laser gain, the optimal optical crystal length and width of quasi-three-level solid-state slab lasers, which variate with pump power ,are analyzed and optimized. At the same time we found that the the concentration of doping medium and the width of the slabs satisfied a certain relation under the condition of diode-side-pumped mode in lower pump power. The laser gain, the optical length and width of the slabs are optimized and simulated when pump power changes from 0 to 2 kW. These results can also be applied to the design for other quasi-three-level solid-state lasers.