Experimental results of the laser operating on the barium ion self-terminating transition $6p{}^2{P}_{3/2}^o$ - $5d{}^2{D}_{5/2}$ at $\lambda =614.2$ nm investigations are presented. Through a series of tests, we demonstrated a significant improvement of the output characteristics of this laser by employing (i) a novel high-voltage nanosecond switch capable to operate at high pulse repetition frequency (more than 50 kHz), and (ii) hydrogen addition to the active medium. Achieved steady-state average output power in the burst-mode operation amounted to 125 mW with laser pulse duration of $\approx 5$ ns at half-maximum.

中文翻译：

---

614.2 nm 自端接钡离子激光器

激光作用于钡离子自终止跃迁的实验结果 $6p{}^2{磷}_{3/2}^{○}$ —— $5d{}^2{D}_{5/2}$ 在 $\lambda =614.2$介绍了纳米研究。通过一系列测试，我们通过采用 (i) 能够在高脉冲重复频率（超过 50 kHz）下工作的新型高压纳秒开关和 (ii) 氢除了活性介质。在突发模式操作中实现的稳态平均输出功率达到 125 mW，激光脉冲持续时间为$\approx 5$ ns 为半最大值。