开展了激光二极管阵列(LDA)端面抽运高功率板条激光器的实验研究和理论分析，通过在谐振腔内引入4f成像系统实现了薄板条激光器的稳定输出。在LDA注入功率接近10 kW时，通过平凹腔输出获得了平均功率为3.24 kW的连续激光输出。同时，通过测量激光器稳定输出时激光晶体的饱和增益系数，间接得到了激光谐振腔的等效损耗系数和板条端面衍射损耗等参数，并分析了填充因子对激光器输出功率的影响，实验结果为开展高功率板条激光器的优化设计提供了基础。

The experiment research and academic analysis on high power slab laser end-pumped with laser diode arrays (LDA) are developed, and the steady laser power output of the thin slab laser is achieved in resonator with 4f system. The continuous-wave laser with average power of 3.24 kW is achieved through plano-concave resonator when the injecting power approaches to 10 kW. The loss coefficient of the laser resonator and the diffraction loss of the slab end are obtained indirectly by measuring the saturated gain coefficient of the laser medium when the laser output power is steady. The influence of the overlap factor on the laser power is analyzed, and the experimental results provide the basis for the optimization design to high power slab lasers.