Liu Ke, Chen Ying, Li Fangqin, Xu Hongyan, Zong Nan, Yuan Hongtao, Yuan Lei, Bo Yong, Peng Qinjun, Cui Dafu, Xu Zuyan
Appl Opt. 2015 Feb 1;54(4):717-20. doi: 10.1364/AO.54.000717.
We presented the first demonstration of a high-peak power few-nanosecond pulse 1342-nm Nd:YVO(4) laser by the combination of cavity dumping and in-band pumping. The maximum average output power of 3.2 W with Gaussian TEM(00) mode was obtained at the pulse repetition rate (PRR) of 10 kHz. The pulse width remained to be 4.7±0.1 ns for the PRR from 2 to 10 kHz. The maximum pulse energy of 0.55 mJ was obtained at 2 kHz and the corresponding peak power was up to 117 kW. This is, to our knowledge, the shortest ns pulse width and the highest peak power for LD-pumped 1.3 μm TEM(00) lasers with an active Q-switch device.
我们首次展示了通过腔倒空与带内泵浦相结合的方式产生的高峰值功率、几纳秒脉冲的1342纳米掺钕钒酸钇（Nd:YVO₄）激光器。在10千赫兹的脉冲重复频率（PRR）下，获得了高斯TEM(00)模式下3.2瓦的最大平均输出功率。对于2至10千赫兹的PRR，脉冲宽度保持在4.7±0.1纳秒。在2千赫兹时获得了0.55毫焦的最大脉冲能量，相应的峰值功率高达117千瓦。据我们所知，这是具有有源调Q装置的LD泵浦1.3微米TEM(00)激光器中最短的纳秒脉冲宽度和最高的峰值功率。
