For fiber-coupled green laser-diode pump beam, a simple model was proposed to calculate the average outputs. Then we presented a direct-pumping continuous-wave Ti:Sapphire laser producing an optimized output of 3.8-W with green diodes. It was the highest output of this kind reported so far corresponding to an optical/optical conversion efficiency of 11.5% and a high slope efficiency of 15.7% at 810 nm. A highest power of 1.41-W was also obtained with the single-sided pumping corresponding to a good slope efficiency of 14.3%. High-power green diodes realized the lowest threshold pumping intensity of ~ 16.7 × 10³ W/cm² under hundred-μm-level beam diameter size. This work would benefit the design for the direct-pumping Ti:Sapphire laser as a guide.

对于光纤耦合绿色激光二极管泵浦光束，提出了一个简单的模型来计算平均输出。然后，我们展示了一种直接泵浦连续波 Ti:Sapphire 激光器，可通过绿色二极管产生 3.8W 的优化输出。这是迄今为止报道的此类最高输出，对应于 11.5% 的光/光转换效率和 810 nm 处 15.7% 的高斜率效率。单侧泵浦也获得了 1.41-W 的最高功率，对应于 14.3% 的良好斜率效率。高功率绿色二极管在百微米级光束直径尺寸下实现了~16.7 × 10 ³  W/cm ²的最低阈值泵浦强度。这项工作将有利于直接泵浦 Ti:Sapphire 激光器的设计作为指导。