【摘要】 基于激光器单频运转的物理条件，理论模拟分析了高功率激光器满足临界单频运转条件对应的输出耦合镜透射率与注入泵浦功率之间的关系。根据理论模拟结果，对于端面泵浦单增益介质的激光器在注入泵浦功率为115 W和端面泵浦双增益介质激光器在注入泵浦功率为240 W时，实验上分别选取透射率为25%和37%的输出耦合镜，在单谐振腔中分别实现了输出功率达51 W和101 W的单频连续波1 064 nm激光器，对应的光—光转换效率分别为45.9%和42.9%，实验结果与理论预期吻合。更多还原

【Abstract】 Based on the physical conditions of single-frequency operation of lasers, the relationship between the transmissivity of output coupling mirror corresponding to the critical single-frequency operation of high-power laser and the injection pump power is theoretically simulated and analyzed. According to the theoretical simulation results,the output coupling transmissions for the laser with end-pumped single laser crystal and a pump power of 115 W, as well as for the laser with double end-pumped two laser crystals and a total pump power of 240 W, are optimized to be25% and 37%, respectively. As results, single-frequency continuous wave 1 064 nm lasers with output powers of51 W and 101 W are realized separately in a single resonator, with respect to the optical-to-optical conversion efficiencies of 45.9% and 42.9%, respectively. Experimental results are consistent with the theoretical expectation.更多还原