介绍了在室温条件下双端抽运高功率Tm:YAP板条激光器。采用双凹腔结构通过优化泵浦光斑尺寸, 在腔内插入双F-P标准具控制激光波长, 当抽运功率为164.4 W时, 获得了54.7 W的连续输出功率, 其斜率效率为44.2%, 输出波长为1 938.8 nm, 随着功率的增加输出波长只有0.3 nm的漂移, 且实现了0.18 nm窄线宽的激光输出, 同时测量了10 W、25 W和35 W时的光束质量, 分别为3.5、4.1和4.2。

A Tm:YAP slab laser with double-end-pumped and high power under room temperature is introduced. With double concave cavity structure and optimizing pumping facula size, F-P etalon is inserted in the cavity to control laser wavelength. When pumped power is 164.4 W, 54.7 W continuous output power is obtained, the slop efficiency is 44.2% and the output wavelength is 1 938.8 nm. With the increasing of the power, the output wavelength only has 0.3 nm shift and the laser output for 0.18 nm narrow line width is realized. And the optical beam quality is measured when pumped power is 10 W, 25 W and 35 W, which is 3.5, 4.1 and 4.2 respectively.