Diode end-pumped 1.37 W Er:YSGG continuous-wave laser around 2.8-μm
Diode end-pumped 1.37 W Er:YSGG continuous-wave laser around 2.8-μm
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二极管端泵浦 1.37 W Er:YSGG 连续波激光器 2.8-μm 左右
DOI：
10.1109/lpt.2021.3078779
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发表时间：
2021
影响因子：
2.6
通讯作者：
Maojie Cheng
中科院分区：
文献类型：
--
作者：
Lunzhen Hu;Dunlu Sun;Huili Zhang;Jianqiao Luo;Cong Quan;Zhiyuan Han;Kunpeng Dong;Yuwei Chen;Maojie Cheng
比较了不同掺杂浓度的激光二极管端面泵浦Er：YSGG晶体的激光性能。实验结果表明，30at.尺寸为2 mm×2 mm×8 mm的%Er：YSGG晶体具有最好的激光输出。在连续波模式和脉冲模式下，最大输出功率分别为1.37和1.20 W，对应的斜率效率分别为23.62%和22.91%。据我们所知，与其他掺Er3+的石榴石激光晶体相比，我们同时获得了更大功率和更高效率的激光输出。X和y方向的光束质量因子M2为1.64/1.65，表明Er：YSGG激光器具有较高的光束质量。这些结果表明，Er：YSGG是一种很有前途的高效率、高功率激光运转的中红外增益介质。
We demonstrate the laser performance of a LD endpumped Er:YSGG crystals with different doping concentrations comparatively. The experimental results show that 30 at. % Er:YSGG crystal with dimensions of 2 mm× 2 mm × 8 mm has the best laser output. In continuous-wave (CW) mode and pulse mode, the maximum output powers of 1.37 and 1.20 W are achieved, corresponding to slope efficiencies of 23.62% and 22.91%, respectively. To the best of our knowledge, compared with other Er3+-doped garnet laser crystals, we obtained a larger power and higher efficiency CW laser simultaneously for LD.end-pumped Er:YSGG crystal. The beam quality factor M2 in x and y directions are determined to be 1.64/1.65, suggesting the Er:YSGG laser possesses a higher beam quality. All these results indicate that Er:YSGG is a promising mid-infrared gain medium for high efficiency and high power laser operation.