中红外被动调Q自光参量振荡器研究  

Study on mid-infrared passively Q-switched self-optical parametric oscillator

作　　者：金光勇 JIN Guangyong(Changchun University of Technology,Changchun 130012,China)

机构地区：[1]长春工业大学,吉林长春130012

出　　处：《长春工业大学学报》2022年第4期387-391,共5页Journal of Changchun University of Technology

基　　金：国家自然科学基金(U20A20214,11974060)。

摘　　要：为提升自光参量振荡器的输出能量,设计了基于双端泵浦复合谐振腔结构的被动调Q自光参量振荡器。开展不同Cr^(4+):YAG晶体初始透过率实验,实验结果证实,提高Cr^(4+):YAG晶体初始透过率能够增加被动调Q重频、脉冲能量与峰值功率。当Cr^(4+):YAG晶体初始透过率为92%时,自光参量振荡器获得3.8μm脉冲中红外激光输出,其重频、脉冲能量、峰值功率分别为32.2 kHz,16.1μJ和3.64 kW。To improve the output energy of the self-optical parametric oscillator further,a passively Q-switched self-optical parametric oscillator based on the double-ended pumped composite resonant is designed in this paper.The experiments are conducted with different initial transmittance of Cr^(4+):YAG crystals,and the experimental results confirm that increasing the initial transmittance of Cr^(4+):YAG crystals could increase the repetition frequency,pulse energy,and peak power.When the initial transmittance of the Cr^(4+):YAG crystal is 92%,the 3.8μm pulsed mid-infrared laser output is achieved with the repetition frequency,pulse energy,and peak power of 32.2 kHz,16.1μJ and 3.64 kW,respectively.

关 键 词：被动调Q 自光参量振荡 中红外激光 Nd:MgO:PPLN 

分 类 号：O43[机械工程—光学工程]