中国光学, 2015, 8 (5): 794, 网络出版: 2015-11-30   

LD 泵浦全固态 608.1 nm 和频激光器

Diode-pumped all-solid-state sum-frequency mixing laser at 608.1 nm
作者单位
中国科学院长春光学精密机械与物理研究所发光学及应用国家重点实验室,吉林长春130033
摘要
本文报道了一种全固态腔内和频608.1 nm 激光器,在激光谐振腔两个分臂中?两支激光二极管分别泵浦Nd∶YVO4和Nd∶YAG晶体, 分别选择1 342 nm波长(Nd∶YVO4晶体的4F3/2-4I13/2谱线)与1 112 nm波长(Nd∶YAG晶体的4F3/2-4I11/2谱线)振荡并进行腔内和频。通过优化谐振腔设计, 腔内两个波长获得了较好的模式匹配。在两个分臂的交叠部分, 利用LBO I类相位匹配进行和频, 获得和频6081 nm激光输出。实验表明, 当Nd∶YVO4与Nd∶YAG晶体泵浦功率分别为600和740 mW时, 获得了功率为238 mW、波长为6081 nm激光输出, 激光输出稳定、噪声低。利用本文提出的和频结构是获得6081 nm激光输出较为有效的方法。
Abstract
A compact all-solid-state intracavity sum-frequency mixing laser at 6081 nm is reported. A Nd∶YAG crystal and a Nd∶YVO4 crystal are pumped by two laser diodes respectively in two sub-arms of the laser cavity. In the two arms, laser wavelengths of 1 342 nm from Nd∶YVO4 crystal(corresponding to the 4F3/2-4I13/2 transition) and 1 112 nm from Nd∶YAG crystal(corresponding to the 4F3/2-4I11/2 transition) are selected to be mixed into 6081 nm laser. Through optimization of the cavity design, better matching of the modes for the two wavelengths is obtained. In the overlapping of the two arms, sum-frequency mixing is generated with a type I phase-matching LBO crystal. The experiment result shows that a stable and low noisy output of 238 mW at 6081 nm is obtained at the incident pump power of 740 mW for the Nd∶YAG crystal and 600 mW for the Nd∶YVO4 crystal. It is an efficient way to obtain 6081 nm laser with the sum-frequency mixing structure proposed in this article.

付喜宏. LD 泵浦全固态 608.1 nm 和频激光器[J]. 中国光学, 2015, 8(5): 794. FU Xi-hong. Diode-pumped all-solid-state sum-frequency mixing laser at 608.1 nm[J]. Chinese Optics, 2015, 8(5): 794.

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