We report the generation of high energy visible pulsed beam from a blue LD-pumped electro-optically (EO) Q-switched Pr³⁺:LiYF₄ (Pr:YLF) laser for the first time. The maximum pulse energy and highest peak power in our work perform excellent in the blue LD-pumped pulse visible lasers. The shortest pulse duration of 137 ns is obtained at the repetition rate of 100 Hz, corresponding to a single pulse energy of 260 μJ and peak power of 1.90 kW. Our research results indicate that the Pr:YLF crystal could be suitable for the generation of high energy Q-switched visible lasers. Meanwhile, we pave up a new way for the practical implementation of blue LD-pumped directly generate high energy Q-switched visible laser.

我们首次报告了从蓝色 LD 泵浦电光 (EO) Q 开关 Pr ³⁺ :LiYF ₄ (Pr:YLF) 激光器产生的高能可见脉冲光束。我们工作中的最大脉冲能量和最高峰值功率在蓝色 LD 泵浦脉冲可见光激光器中表现出色。在 100 Hz 的重复频率下获得 137 ns 的最短脉冲持续时间，对应于 260 μJ 的单脉冲能量和 1.90 kW 的峰值功率。我们的研究结果表明，Pr:YLF 晶体可适用于产生高能调Q 可见光激光器。同时，我们为蓝色LD泵浦直接产生高能调Q可见激光的实际应用开辟了一条新途径。