Key Laboratory of Space Laser Communication and Testing Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai, China.
Opt Lett. 2012 Feb 15;37(4):743-5. doi: 10.1364/OL.37.000743.
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%.
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%。
