Efficient continuous-wave intracavity frequency-doubled Nd:YAG-LBO blue laser at 473 nm under diode pumping directly into the emitting level
Efficient continuous-wave intracavity frequency-doubled Nd:YAG-LBO blue laser at 473 nm under diode pumping directly into the emitting level
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DOI：
10.1002/lapl.200910105
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发表时间：
2009
影响因子：
1.7
通讯作者：
Y. Lü;X. Yin;J. Xia;R. Wang;D. Wang
中科院分区：
文献类型：
--
作者：
Y. Lü;X. Yin;J. Xia;R. Wang;D. Wang
我们报告了通过 885 nm 二极管直接泵浦 Nd:YAG 激光器的连续波激光操作在 946 nm 的 4F3/2 → 4I9/2 跃迁上的腔内倍频，产生了 473 nm 的高效蓝色激光。 LiB3O5 (LBO) 晶体在室温下切割用于临界 I 型相位匹配，用于激光器的二次谐波生成。在吸收泵浦功率为 18.7 W 时，使用 15 mm 长的 LBO 可在 473 nm 处实现高达 4.3 W 的连续波输出功率。光光转换效率相对于吸收功率高达0.23，光束质量M2值为1.2。
We report the efficient blue laser at 473 nm generation by intracavity frequency doubling of a continuous wave laser operation of a 885 nm diode direct pumped Nd:YAG laser on the 4F3/2 → 4I9/2 transition at 946 nm. A LiB3O5 (LBO) crystal, cut for critical type I phase matching at room temperature is used for second harmonic generation of the laser. At the absorbed pump power of 18.7 W, as high as 4.3 W of continuous wave output power at 473 nm is achieved with 15 mm long LBO. The optical-to-optical conversion efficiency with respect to the absorbed power is up to 0.23, and the beam quality M2 value is 1.2.