Stable, high power, high efficiency picosecond ultraviolet generation at 355 nm in K3B6O10Br crystal
Stable, high power, high efficiency picosecond ultraviolet generation at 355 nm in K3B6O10Br crystal
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DOI：
10.1016/j.optcom.2018.02.017
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发表时间：
2018-06
影响因子：
2.4
通讯作者：
Z. Hou;Li-Jie Wang;M. Xia;D. Yan;Qiulin Zhang;Lizhen Zhang;Long-xiang Liu;Degang Xu;Deyin Zhang;Wang Xiao-duo;Rukang K. Li;Chao Chen
中科院分区：
文献类型：
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作者：
Z. Hou;Li-Jie Wang;M. Xia;D. Yan;Qiulin Zhang;Lizhen Zhang;Long-xiang Liu;Degang Xu;Deyin Zhang;Wang Xiao-duo;Rukang K. Li;Chao Chen
利用K3B6O10BrI类临界位相匹配的K3B6O10Br3晶体作为非线性光学材料，实现了高效率、高功率的355 nm和频输出的稳定输出。利用波长为1064 nm、频率为10赫兹、波长为25ps的激光，获得了高达30.8%的转换效率。采用重复频率为80 MHz的35W 10ps激光作为抽运源，获得了最高的平均输出功率5.3W。此外，对355 nm激光输出功率的稳定度测试表明，在3.0W和3.5W时，平均功率的标准偏差波动分别为±0.69%和±0.91%。
We demonstrate a high efficiency and high power picosecond ultraviolet source at 355 nm with stable output by sum frequency generation from a Nd: YAG laser using a type-I critically phase matched K 3 B 6 O 10 Br crystal as nonlinear optical material. Conversion efficiency as high as 30.8% was achieved using a 25 ps laser at 1064 nm operated at 10 Hz. Similar work is done by using a 35 W 10 ps laser at 1064 nm as the pump source with a repetition rate of 80 MHz, and the highest average output power obtained was up to 5.3 W. In addition, the power stability of the 355 nm output power measurement shows that the standard deviation fluctuations of the average power are±0.69% and±0.91% at 3.0 W and 3.5 W, respectively.