光纤激光泵浦的多波长中红外光参量振荡器  

Fiber laser pumped multi-wavelength mid-infrared optical parametric oscillator

作　　者：余光其 王鹏[2] 宋伟[1] 刘奎永[1] Yu Guangqi;Wang Peng;Song Wei;Liu Kuiyong(The No.92941 Army of PLA,Huludao 125000,China;College of Optoelectronic Science and Engineering,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]中国人民解放军92941部队 [2]国防科技大学光电科学与工程学院

出　　处：《红外与激光工程》2018年第4期83-89,共7页Infrared and Laser Engineering

摘　　要：介绍了一种光纤激光泵浦的三波长中红外光参量振荡器。在最大泵浦功率70.7W,泵浦波长为1060、1065、1080 nm的情况下,实现了8.7W的中红外闲频光输出,斜效率达到16%,闲频光三个波长分别为3132、3170、3310 nm,但产生的信号光只有一个波长为1604 nm。对实验结果进行了理论分析和实验测试,得出在谐振腔内1060 nm泵浦光发生了光参量振荡,而1065、1080 nm泵浦光分别与1604 nm信号光发生了差频过程,同时还利用差频转换效率理论对1065、1080 nm差频产生的闲频光强度的差异进行了分析和解释。A fiber laser pumped three-wavelength mid-infrared optical parametric oscillator was demonstrated.The pump source had three wavelengths which were 1 060 nm,1 065 nm and 1 080 nm and the maximum pump power was 70.7 W.8.7 W mid-infrared idler output was achieved under the maximum pump power,indicating a 16%slope efficiency.The idler wave had three wavelengths which were 3 132 nm,3 170 nm and 3 310 nm but the signal wave just had one wavelength locating at 1 604 nm.The experiment result was analyzed in both theory and experiment,and came to a conclusion that in the optical resonator,the optical parametric oscillation happened to the 1 060 nm pump wave and the difference frequency generation happened between the 1 604 nm signal wave and the 1 065 nm,1 080 nm pump waves separately.The intensity difference between idler waves generated by the difference frequency generation of 1 065 nm and 1 080 nm was also analyzed using the conversion efficiency theory of difference frequency generation.

关 键 词：非线性光学 光参量振荡 差频 中红外激光 光纤激光 

分 类 号：TN248[电子电信—物理电子学]