2μm波段宽带可调谐窄线宽光纤激光器研究进展  

Research Progress of Wideband-Tunable Narrow-Linewidth Fiber Laser in 2μm Waveband

作　　者：王建伟 沈辉[2,3,4] 漆云凤[2,3,4] 戴博[1] 叶锡生 Wang Jianwei;Shen Hui;Qi Yunfeng;Dai Bo;Ye Xisheng(School of Optical-Electrial and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093;Wang Zhijiang Laser Innovation Center,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800;Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Aerospace Laser Technology and System Department,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China)

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]中国科学院上海光学精密机械研究所王之江激光创新中心,上海201800 [3]中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室,上海201800 [4]中国科学院上海光学精密机械研究所空天激光技术与系统部,上海201800

出　　处：《激光与光电子学进展》2025年第1期63-75,共13页Laser & Optoelectronics Progress

摘　　要：2μm可调谐窄线宽光纤激光器在大气探测、激光雷达及医疗检测等领域中有着重要应用。首先介绍了获取可调谐激光的4种常用调谐技术,包括衍射光栅滤波器调谐、体布拉格光栅滤波器调谐、声光滤波器调谐和光纤法布里-珀罗滤波器调谐,同时对比分析了这4种技术的优点和不足;其次,介绍了实现窄线宽激光器的3种主要结构,包括线性腔、环形腔和复合腔,同时对比分析了这3种结构的优点和不足;然后,介绍2μm波段窄线宽、高功率、波长可调谐光纤激光器的现有典型研究结果和面临的技术瓶颈;最后,对2μm波段宽带可调谐窄线宽光纤激光器的技术发展趋势进行展望。A 2μm tunable narrow-linewidth fiber laser has valuable applications in fields such as atmospheric detection,LiDAR,and medical detection.First,four common wavelength-tuning techniques are introduced,including diffraction grating filter tuning,volume Bragg grating filter tuning,acousto-optic filter tuning,and fiber Fabry-Perot filter tuning.Then,the advantages and disadvantages of these techniques are compared and analyzed.Next,we demonstrate three structures of narrow-linewidth lasers:linear cavity,ring cavity,and compound cavity,and compare their advantages and disadvantages.Subsequently,the current research results and technical challenges of narrow-linewidth,high power,and tunable fiber lasers in the 2μm waveband are introduced.Finally,the technical development trends of tunable narrowlinewidth fiber lasers in the 2μm waveband are prospected.

关 键 词：激光器 2μm光纤激光器 窄线宽 波长调谐 

分 类 号：TN248.1[电子电信—物理电子学]