300-W cryogenically cooled Yb:YAG laser
300-W cryogenically cooled Yb:YAG laser
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300 W 低温冷却 Yb:YAG 激光器
DOI：
10.1109/jqe.2005.855027
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发表时间：
2005
影响因子：
2.5
通讯作者：
T. Fan
中科院分区：
文献类型：
--
作者：
D. Ripin;J. Ochoa;R. Aggarwal;T. Fan
热光学效应往往限制了块状固体激光器的功率和光束质量。低温冷却（/spl sim/ 100k） Yb:YAG激光器由于在低温下改善了材料性能，已经证明具有相对低的热光效应和高效率。在本工作中，从端抽油杆几何功率振荡器中得到了平均功率> - 300-W, M/sup //spl / sim/1.2和64%的光光效率。据我们所知，这是迄今为止低温冷却Yb:YAG激光器的最高平均功率。
Thermooptic effects often limit the power and beam quality of bulk-solid-state lasers. Cryogenically cooled (/spl sim/100 K) Yb:YAG lasers have been previously demonstrated to have relatively low thermooptic effects and high efficiency due to improved material properties at low temperatures. In this work, >300-W average power with M/sup 2//spl sim/1.2 and 64% optical-optical efficiency has been demonstrated from an end-pumped-rod geometry power oscillator. To our knowledge, this is the highest average power to date from a cryogenically cooled Yb:YAG laser.