论文部分内容阅读
对基于Mg O:APLN的多光参量振荡器进行了实验研究.通过优化Mg O:APLN极化结构及参量光耦合输出透过率,在200 k Hz高重复频率1064 nm激光抽运下,通过单极化晶体实现了1.57μm,3.84μm跨周期参量光输出,平均功率分别达到2.4 W和1.31 W,对应光-光转换效率为11.54%和6.25%.同时针对多光参量振荡过程的逆转换现象,通过耦合波方程对其进行了数值演化,并引入“逆转换能量传导区”概念,指出逆转换能量传导区的存在促使弱增益光学参量振荡器的参量光得到二次增强,所得结论与实验结果相符合.
The multi-optical parametric oscillator based on MgO: APLN has been studied experimentally by optimizing the polarization structure of Mg O: APLN and the optical coupling output transmittance of the parameter, under the condition of 200 k Hz high repetition rate 1064 nm laser pumping, The monopole crystals achieved 1.57μm and 3.84μm cross-cycle parametric light outputs with average powers of 2.4 W and 1.31 W, respectively, corresponding to 11.54% and 6.25% of the light-to-light conversion efficiencies. In addition, Phenomenon, which was numerically evolved by the coupled wave equation and introduced the concept of “inverse transfer energy transfer zone”. It is pointed out that the existence of inverse transfer energy transfer zone causes the parametric light of the weak gain optical parametric oscillator to be secondarily enhanced. The conclusion is consistent with the experimental results.