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Nd:GdVO 4 /Yb:YAG Intracavity Sum-Frequency CW Blue Laser Operating at 484 nm
Journal of Russian Laser Research ( IF 0.9 ) Pub Date : 2020-11-03 , DOI: 10.1007/s10946-020-09922-5
Chenwen Hu , Yongliang Li , Xiaoting Sun

We study a continuous-wave sum-frequency blue laser operating at 484 nm. The laser elaborated is based on the intracavity pumping technology. A 912 nm laser produced by an end-pumped Nd:GdVO4 crystal, using an 808 nm fiber-coupled laser diode, is employed to pump an Yb:YAG crystal in the cavity to achieve the simultaneous oscillations in 912 and 1030 nm lasers. An intracavity sum-frequency achieved in a type-I phase-matched BIBO crystal is used to obtain the 484 nm blue laser output. In our experiment, we apply a linear coaxial laser resonator structure. As a result, we obtain a sumfrequency blue laser output of 317 mW at a pump power of 25 W. The slope efficiency of the designed laser is 2.8%, and the beam quality factors are 1.34 in the X direction and 1.36 in the Y direction, respectively, with the power fluctuations about 3.8% within four hours.



中文翻译:

Nd:GdVO 4 / Yb:YAG腔内和频连续波蓝色激光工作于484 nm

我们研究了在484 nm下工作的连续波和频蓝光激光器。精心设计的激光器基于腔内泵浦技术。由端泵浦Nd:GdVO 4晶体产生的912 nm激光器,使用808 nm光纤耦合激光二极管,被用于将Yb:YAG晶体泵浦到腔中,从而在912和1030 nm激光器中实现同时振荡。在I型相位匹配的BIBO晶体中获得的腔内和频用于获得484 nm蓝色激光输出。在我们的实验中,我们应用了线性同轴激光谐振器结构。其结果是,我们获得317毫瓦的sumfrequency蓝色激光输出在25 W的泵浦功率的设计激光器的斜率效率是2.8%,和光束质量因子是在1.34 X方向和1.36在ÿ 分别在四个小时内功率波动约3.8%。

更新日期:2020-11-03
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