Tm:YLF 激光泵浦周期性极化掺镁铌酸锂晶体光参量振荡器。

Tm:YLF laser-pumped periodically poled MgO-doped congruent LiNbO3 crystal optical parametric oscillators.

机构信息

Key Laboratory of Space Laser Communication and Testing Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai, China.

出版信息

Opt Lett. 2012 Feb 15;37(4):743-5. doi: 10.1364/OL.37.000743.

DOI:10.1364/OL.37.000743

PMID:22344167

Abstract

At room temperature, highly efficient, doubly resonant periodically poled MgO-doped congruent LiNbO3 crystal optical parametric oscillators (OPO) pumped at 1.9 μm have been realized for the first time to our knowledge. A 2.9 W, 2 kHz acousto-optic Q-switched homemade Tm:YLF laser served as a pump source. A 900 mW mid-infrared emission generated from an OPO is illustrated. The overall mid-infrared generation conversion efficiency reached 31%, whereas the slope efficiency was up to 70%.

摘要

据我们所知，首次在室温下实现了高效、双共振周期极化掺镁铌酸锂（MgO:LiNbO3）晶体光参量振荡器（OPO），其采用 1.9μm 波段抽运。一台 2.9W、2kHz 的声光调 Q 自制 Tm:YLF 激光器用作抽运源。实验展示了一台从中获得的 900mW 中红外输出。整体中红外转换效率达到 31%，而斜效率高达 70%。