Duan Xiaoming, Li Linjun, Guo Xinsheng, Ding Yu, Yao Baoquan, Zheng Lihe, Su Liangbi, Wang Yuezhu
Opt Express. 2018 Oct 15;26(21):26916-26924. doi: 10.1364/OE.26.026916.
In this paper, we demonstrated a linewidth-narrowed continuous-wave (CW) and acousto-optical Q-switched Ho:CaF laser for the first time. With a volume Bragg grating, a maximum CW output power of 6.94 W at 2100.5 nm, and slope efficiency of 57.9%, an FWHM linewidth of 0.31 nm was obtained. When absorbed pump power was 13.2 W, the maximum average output powers of 6.08 W, 5.9 W, and 5.71 W were achieved in a Q-switched Ho:CaF laser under pulse repetition frequencies of 10 kHz, 5 kHz, and 3 kHz, corresponding to the slope efficiencies of 51.2%, 49.6%, and 48.5%, respectively. The minimum pulse width of 54 ns was achieved at pulse repetition frequency of 3 kHz.
在本文中，我们首次展示了一种线宽变窄的连续波（CW）和声光调Q的Ho:CaF激光。利用体布拉格光栅，在2100.5nm处获得了6.94W的最大连续波输出功率，斜率效率为57.9%，半高宽线宽为0.31nm。当吸收泵浦功率为13.2W时，在脉冲重复频率为10kHz、5kHz和3kHz的调Q Ho:CaF激光中，分别获得了6.08W、5.9W和5.71W的最大平均输出功率，对应的斜率效率分别为51.2%、49.6%和48.5%。在3kHz的脉冲重复频率下实现了54ns的最小脉冲宽度。
