Huang Hsin-Jia, Fang Yu-Han, Chen Chun-Ling, Liang Hsing-Chih, Chen Yung-Fu
Opt Lett. 2023 Sep 1;48(17):4645-4648. doi: 10.1364/OL.498851.
Two compact laser sources at 707 and 714 nm are realized efficiently by using a diode-pumped a-cut Nd:YVO laser with intracavity stimulated Raman scattering and sum-frequency generation (SFG). The fundamental wave at 1342 nm is generated by the F → I transition in Nd:YVO crystal. The Raman Stokes waves at 1496 and 1526 nm were obtained by placing the c-axis of the Nd:YVO crystal along the Ng and Nm axes of an Np-cut KGW crystal, respectively. LBO crystals with critical phase matching are used to perform the intracavity SFG of fundamental and Stokes waves. At a pump power of 36 W, the maximum output powers at 707 and 714 nm can reach 2.72 and 3.14 W, corresponding to light-to-light conversion efficiencies of 7.5% and 8.7%, respectively. The developed 707 and 714 nm laser sources are practically useful in laser trapping and cooling related to atomic strontium and radium.
通过使用二极管泵浦的a切割Nd:YVO激光器，结合腔内受激拉曼散射和和频产生（SFG），高效实现了707和714 nm的两个紧凑型激光源。1342 nm的基波由Nd:YVO晶体中的F→I跃迁产生。通过分别将Nd:YVO晶体的c轴沿Np切割KGW晶体的Ng和Nm轴放置，获得了1496和1526 nm的拉曼斯托克斯波。具有临界相位匹配的LBO晶体用于执行基波和斯托克斯波的腔内SFG。在36 W的泵浦功率下，707和714 nm处的最大输出功率分别可达2.72和3.14 W，对应的光到光转换效率分别为7.5%和8.7%。所开发的707和714 nm激光源在与锶原子和镭原子相关的激光捕获和冷却中具有实际应用价值。
