Spectroscopic properties and continuous-wave laser performance of a new Yb0.015:Lu0.162Gd0.823VO4 mixed vanadate crystal are reported. An appreciable discontinuous increase in output power occurs during the σ- to π-polarization switching process in the laser oscillation. A maximum output power of 4.3 W is generated with an optical-to-optical efficiency of 46%, whereas the average slope efficiency is determined to be 73 – 77%, depending on the output coupling utilized.

中文翻译：

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新型混合Yb0.015:Lu0.162Gd0.823VO4晶体的光谱特性和激光性能

报道了一种新型 Yb0.015:Lu0.162Gd0.823VO4 混合钒酸盐晶体的光谱特性和连续波激光性能。在激光振荡的 σ 到 π 偏振切换过程中，输出功率会出现明显的不连续增加。产生的最大输出功率为 4.3 W，光对光效率为 46%，而平均斜率效率确定为 73-77%，具体取决于所使用的输出耦合。