Quan Zheng, Yi Yao, Bin Li, Kai Zhou, Yang Liu, Ling Zhao
Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China.
Appl Opt. 2009 Jun 1;48(16):2979-82. doi: 10.1364/ao.48.002979.
Efficient cw intracavity frequency doubling of a diode end-pumped Nd:GdVO4 laser that operates in the 4F(3/2) --> 4I(9/2) transition at 912 nm is demonstrated. A 15 mm long lithium borate crystal, cut for critical type I phase matching at room temperature, was used for second harmonic generation of the fundamental laser. A maximum output power of 14.8 W in the deep blue spectral range at 456 nm was achieved at an incident pump power of 40 W. In 2 h we achieved an optical-to-optical conversion efficiency of 37% with a better than 2.57% power stability.
演示了一种二极管端面泵浦的Nd:GdVO4激光器在912nm波长的4F(3/2)→4I(9/2)跃迁中高效的连续波腔内倍频。使用了一块15mm长的硼酸锂晶体，该晶体在室温下切割用于临界I类相位匹配，用于基频激光的二次谐波产生。在40W的入射泵浦功率下，在456nm的深蓝色光谱范围内实现了14.8W的最大输出功率。在2小时内，我们实现了37%的光光转换效率，功率稳定性优于2.57%。
