为了研究布氏角片状激光器能量转换效率，提高激光器系统转换效率，采用实验的方法，对影响片状激光器转换效率的主要因素进行了理论分析并进行了实验验证，取得了能量输出与激光腔内损耗关系的数据。结果表明，多片结构带来的腔内固有损耗导致了激光器总体效率低下，由布氏角构形产生的腔内动态损耗限制了激光器连续工作能力，抽运损耗也对激光器能量转换效率有一定影响。

In order to increase the conversion efficiency of a multi-disk laser at Brewster angle,the main elements affecting the efficiency were analyzed theoretically and verified by means of experiments. A series of datum about the relation of output energy and intracavity loss were gained. The results indicated that inherence loss due to multi-disk configuration led to low laser efficiency. The dynamic loss limited the ability of continuous laser output,and the pump loss brought a certain effect on the laser efficiency.