Diode-pumped passively Q-switched Nd:GAGG laser at 938 nm with V3+:YAG saturable absorber
Diode-pumped passively Q-switched Nd:GAGG laser at 938 nm with V3+:YAG saturable absorber
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DOI：
10.1002/lapl.201010055
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发表时间：
2010-07
影响因子：
1.7
通讯作者：
S. Liu;B. Zhang;J. L. He;H. Yang;J. Xu;F. Q. Liu;J. Yang;X. Q. Yang;H. T. Huang
中科院分区：
文献类型：
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作者：
S. Liu;B. Zhang;J. L. He;H. Yang;J. Xu;F. Q. Liu;J. Yang;X. Q. Yang;H. T. Huang
首次实现了Nd：Gd_3Al_xGa_（5-x）O_（12）（Nd：GAGG）938 nm连续调Q激光器。在吸收泵浦功率为8.54 W时，获得了0.44 W的最大连续输出功率，相应的斜率效率为7.8%，光光效率为5.2%。一个V3+：YAG可饱和吸收晶体的初始透射率为97%，用于被动调Q制度。在最小脉宽为358 ns，重复频率为116 kHz的条件下，获得了最大平均功率为0.19 W的激光输出。相应的单脉冲能量和脉冲峰值功率分别为1.6 μJ和4.6W。
The continuous wave (CW) and passively Q-switched Nd:Gd3AlxGa5-xO12 (Nd:GAGG) laser operation at 938 nm have been realized for the first time. The maximum CW output power of 0.44 W was obtained under the absorbed pump power of 8.54 W, corresponding to the slope efficiency of 7.8% and optical-to-optical efficiency of 5.2% respectively. A V3+:YAG saturable absorber crystal with the initial transmission of 97% was used for the passive Q-switching regime. The maximum average output power of 0.19 W was achieved with the minimum pulse width of 358 ns and Q-switched repetition rate of 116 kHz. The corresponding single pulse energy and pulse peak power were determined to be 1.6 μJ and 4.6 W, respectively.