Zhang Xuguang, Ye Junzhi, Luo Xingwang, Chen Xiaoming, Zhang Lei, Xu Xiafei, Ren Huaijin, Lu Yanhua, Ma Yi, Gao Qingsong, Sun Jun, Wang Weimin
Opt Express. 2021 Feb 15;29(4):5687-5693. doi: 10.1364/OE.414808.
In this paper, a single-frequency quasi-continuous-wave partially pumped slab (Innoslab) amplifier at 1064 nm is reported. The 4.4-W single-frequency seed laser was amplified to 148.1 W with optical-optical efficiency of 30.4%. The output pulse duration was 141.4 μs at the repetition of 500 Hz. The beam quality factors of M2 were 1.41 and 1.37 in the horizontal and vertical direction respectively. The experimental results match well with the numerical simulation. To the best of our knowledge, this is the first report on single-frequency Nd:YAG Innoslab amplifier with such a high output power and efficiency.
本文报道了一种1064 nm单频准连续波光部分泵浦片状（Innoslab）放大器。4.4 W的单频种子激光被放大至148.1 W，光光效率为30.4%。输出脉冲持续时间为141.4 μs，重复频率为500 Hz。水平和垂直方向的光束质量因子M2分别为1.41和1.37。实验结果与数值模拟吻合良好。据我们所知，这是首次报道具有如此高输出功率和效率的单频Nd:YAG Innoslab放大器。
