Sapphire-conductive end-cooling of high power cryogenic Yb:YAG lasers
Sapphire-conductive end-cooling of high power cryogenic Yb:YAG lasers
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DOI：
10.1007/s00340-005-1779-4
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发表时间：
2005-03
期刊：
影响因子：
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通讯作者：
S. Tokita;J. Kawanaka;Masayuki Fujita;T. Kawashima;Yasukazu Izawa
中科院分区：
文献类型：
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作者：
S. Tokita;J. Kawanaka;Masayuki Fujita;T. Kawashima;Yasukazu Izawa
在液氮温度下，我们用掺铒的Yb：YAG激光器实现了一个高功率激光振荡器。在0.6mm厚的有源介质上获得了75 W的近衍射极限光束输出。斜率效率和最大光-光效率分别为80%和70%。
We have demonstrated a high-power laser oscillator with end-cooling using a sapphire-sandwiched Yb:YAG disk at near liquid nitrogen temperature. An output power of 75 W with a near-diffraction-limited beam was obtained from a 0.6-mm thick activemedium. The slope efficiency and themaximum optical–optical efficiency were 80 and 70%, respectively, with respect to absorbed pump power.