We demonstrate the performance of a 968-nm laser-diode (LD) side-pumped Er,Pr:YAP laser in free-running and electro-optical (EO) Q-switched modes with emission at 2.7 μm, respectively. In the free-running mode, a maximum power of 11 W is achieved at a working frequency of 150 Hz and a pulse width of 200 μs, corresponding to the single pulse output energy of 73.3 mJ and slope efficiency of 13.3%. In the EO Q-switching mode, a giant pulse laser is obtained with pulse energy of 20.5 mJ, pulse width of 61.4 ns, and peak power of 0.33 MW at the highest working frequency of 150 Hz, corresponding to the energy extraction efficiency of 71.4%. In addition, dual-wavelength laser at 2713 and 2732 nm and beam quality factors Mx2/My2 of 6.62/6.66 are measured, respectively. The results indicate that a 2.7-μm laser with a high repetition rate and high peak power can be realized through LD side-pumped and EO Q-switched Er,Pr:YAP crystal.

中文翻译：

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968 nm 激光二极管侧泵浦、电光 Q 开关 Er,Pr:YAP 激光器的性能，发射频率为

我们展示了 968 nm 激光二极管 (LD) 侧泵浦 Er,Pr:YAP 激光器在自由运行和电光 (EO) Q 开关模式下的性能，发射波长分别为 2.7 μm。在自由运行模式下，工作频率为 150 Hz，脉冲宽度为 200 μs，最大功率为 11 W，对应的单脉冲输出能量为 73.3 mJ，斜率效率为 13.3%。在EO调Q模式下，获得脉冲能量20.5 mJ，脉宽61.4 ns，峰值功率0.33 MW的巨脉冲激光器，最高工作频率150 Hz，对应能量提取效率71.4 %。此外，分别测量了 2713 和 2732 nm 的双波长激光和光束质量因子 Mx2/My2 为 6.62/6.66。结果表明，a 2。