Zhao Jiaqun, Yang Xinyuan, Liu Yuantong, Jin Lei, Yu Rui, Zhou Xiaofeng, Cheng Ping
Opt Lett. 2024 Feb 15;49(4):862-865. doi: 10.1364/OL.516389.
A diode-pumped wavelength switchable passively Q-switched 2.3 μm Tm:YVO laser was demonstrated in this work. A Cr:ZnS saturable absorber was introduced into the cavity for initiating passive Q-switching. With the increase of the absorbed pump power, the passively Q-switched laser could be switched from the single wavelength of 2366 nm to the dual wavelength of 2290 and 2360 nm. The pulse duration and pulse repetition frequency could be tuned in the ranges of 0.745-1.782 μs and 2.9-43.4 kHz, respectively. The pulse energy and peak power were estimated to be 7.5 μJ and 10 W, respectively, at an absorbed pump power of 12 W.
在本工作中展示了一种二极管泵浦的波长可切换被动调Q 2.3μm掺铥钒酸钇（Tm:YVO）激光器。将Cr:ZnS饱和吸收体引入腔内以启动被动调Q。随着吸收泵浦功率的增加，被动调Q激光器可从2366nm的单波长切换到2290和2360nm的双波长。脉冲持续时间和脉冲重复频率可分别在0.745 - 1.782μs和2.9 - 43.4kHz范围内调谐。在12W的吸收泵浦功率下，脉冲能量和峰值功率估计分别为7.5μJ和10W。
