We have numerically and experimentally studied an electro-optic Q-switched 1064 nm Nd:YVO4 laser with sub-nanosecond output. An effective numerical model is demonstrated, in which the intracavity photon density and the population inversion density are defined as variables of temporal and spatial. Guided by the numerical results, the maximum 1064 nm output pulse energy of 275 μJ has been achieved with a pulse duration of 1.16 ns at 10 kHz repetition rate, which corresponding to the peak power of 237 kW. With the maximum output energy, the beam quality factors M2 of 1.26 and 1.24 in horizontal and vertical directions are obtained.

中文翻译：

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高重复率、高峰值功率亚纳秒 1064 nm 电光调Q激光器


我们通过数值和实验研究了具有亚纳秒输出的电光 Q 开关 1064 nm Nd:YVO4 激光器。论证了一种有效的数值模型，其中腔内光子密度和布居反转密度被定义为时间和空间变量。根据数值结果，在 10 kHz 重复频率下，脉冲持续时间为 1.16 ns，最大 1064 nm 输出脉冲能量为 275 μJ，对应的峰值功率为 237 kW。在最大输出能量下，得到水平和垂直方向的光束质量因子M2分别为1.26和1.24。