Opt Lett. 2023 Apr 15;48(8):2118-2121. doi: 10.1364/OL.487752.
We report on diode-pumped continuous wave and passively Q switched Er:GdScO crystal lasers at around 2.8 µm. A continuous wave output power of 579 mW was obtained with a slope efficiency of 16.6%. Using Fe:ZnSe as a saturable absorber, a passively Q switched laser operation was realized. A maximum output power of 32 mW was generated with the shortest pulse duration of 286 ns at a repetition rate of 157.3 kHz, leading to a pulse energy of 204 nJ and a pulse peak power of 0.7 W.
我们报告了二极管泵浦连续波和被动调 Q 运转的掺铒钆钪石榴石（Er:GdScO）晶体激光器，其输出波长在 2.8 µm 左右。获得了 579 mW 的连续波输出功率，斜率效率为 16.6%。使用 Fe:ZnSe 作为可饱和吸收体，实现了被动调 Q 运转。在重复频率为 157.3 kHz 时，获得了最短脉冲持续时间为 286 ns 的 32 mW 的最大输出功率，相应的脉冲能量为 204 nJ，脉冲峰值功率为 0.7 W。
