Spectral programmable mid-infrared optical parametric oscillator  

作　　者：JUNRUI LIANG JIANGMING XU YANZHAO KE SICHENG LI JUNHONG HE YIDONG GUO YANG ZHANG XIAOYA MA JUN YE XIAO LI JINYONG LENG PU ZHOU 

机构地区：[1]College of Advanced Disciplinary Studies,National University of Defense Technology,Changsha 410073,China [2]Nanhu Laser Laboratory,National University of Defense Technology,Changsha 410073,China [3]Hunan Provincial Key Laboratory of High Energy Laser Technology,National University of Defense Technology,Changsha 410073,China

出　　处：《Photonics Research》2024年第8期1593-1603,共11页光子学研究（英文版）

基　　金：Project 2019-JCJQ(JJ-202);National Postdoctoral Program for Innovative Talents(BX20190063);Hunan Innovative Province Construction Project(2019RS3017);National Natural Science Foundation of China(61975236,62061136013,62035015)。

摘　　要：A spectral programmable,continuous-wave mid-infrared(MIR)optical parametric oscillator(OPO),enabled by a self-developed high-power spectral tailorable fiber laser,was proposed and realized.While operating at a singlewavelength,the maximum idler power reached 5.53 W at 3028 nm,with a corresponding pump-to-idler conversion efficiency of 14.7%.The wavelength number switchable output was available from one to three.The single idler was tunable in a range of 528 nm(2852–3380 nm).In a dual-wavelength operation,the interval between two idlers could be flexibly tuned for 470 nm(53–523 nm),and the intensity of each channel was controllable.Triplewavelength idler emission was realized,meanwhile exhibiting spectral custom-tailored characteristics.Furthermore,we balanced the parametric gain through the pre-modulating broadband multi-peak pump spectra,enabling a 10 d B bandwidth adjustment of the idler emission from 20 to 125 nm.This versatile mid-infrared laser,simultaneously featuring wide tuning,multi-wavelength operation,and broad bandwidth manipulation,has great application potential in composition detection,terahertz generation,and speckle-free imaging.

关 键 词：PUMP tuning PARAMETRIC 

分 类 号：TN248[电子电信—物理电子学] TN214