1060 nm continuous-wave and passively Q-switched pulse lasers were demonstrated in a 3.5-mm-thick X-cut Nd:GdPO₄ crystal. At an absorbed pump power of 1.91 W, a 1060 nm continuous-wave laser with a maximum output power of 0.72 W and a slope efficiency of 42% was realized. When a Cr⁴⁺:YAG saturable absorber with an initial transmission of 85% was used, a passively Q-switched pulse laser with repetition frequency of 6.7 kHz, pulse energy of about 19 µJ, pulse duration of 58 ns, and peak power of 0.33 kW was obtained in a plano-concave cavity with a length of 95 mm and an absorbed pump power of 1.91 W. For a plano-plano cavity with a length of 9 mm and the same pump power, a pulse laser with repetition frequency of 7.2 kHz, pulse energy of about 14.1 µJ, pulse duration of 4.1 ns and peak power of 3.4 kW was obtained.

中文翻译：

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连续波和被动调 Q 脉冲 1060 nm Nd:GdPO4 激光器

在 3.5 毫米厚的X切割 Nd:GdPO ₄晶体中演示了1060 nm 连续波和被动调Q脉冲激光器。在吸收泵浦功率为 1.91 W 时，实现了 1060 nm 连续波激光器，最大输出功率为 0.72 W，斜率效率为 42%。当使用初始透射率为 85%的 Cr ⁴⁺ :YAG 可饱和吸收器时，被动Q在长95 mm、吸收泵浦功率为0.33 kW的平凹腔中获得了重复频率为6.7 kHz、脉冲能量约为19 µJ、脉冲持续时间为58 ns、峰值功率为0.33 kW的开关脉冲激光器。 1.91 W。 对于长度为 9 mm 且泵浦功率相同的平平腔，脉冲激光器的重复频率为 7.2 kHz，脉冲能量约为 14.1 µJ，脉冲持续时间为 4.1 ns，峰值功率为 3.4 kW。获得。