2μm波段纳秒掺铥光纤激光器研究进展  

Research Progress of 2μm Band Nanosecond Thulium-Doped Fiber Laser

作　　者：任俊杰 贺振兴 余婷[1,2,3] 叶锡生 Ren Junjie;He Zhenxing;Yu Ting;Ye Xisheng(Laboratory of High Power Fiber Laser Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;College of Materials Science and OptoElectronic Technology,University of Chinese Academy of Sciences,Beijing 100049,China;Shanghai Key Laboratory of All SolidState Laser and Applied Techniques,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China)

机构地区：[1]中国科学院上海光学精密机械研究所高功率光纤激光技术实验室,上海201800 [2]中国科学院大学材料科学与光电技术学院,北京100049 [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

出　　处：《激光与光电子学进展》2023年第9期67-79,共13页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(62105268,62005300)。

摘　　要：调Q技术是掺铥光纤激光器获得纳秒脉冲激光输出的主要方式。本文首先介绍主动调Q、被动调Q和增益调制这三种调Q技术在掺铥光纤振荡器中的应用现状,对比和分析三种技术的优点与不足。其次,介绍窄脉宽、高平均功率、大脉冲能量纳秒掺铥光纤放大器的现有典型研究结果和面临的技术瓶颈,并从热管理、非线性效应抑制、放大自发辐射抑制三个方面进行了优化措施分析。最后,对纳秒掺铥光纤振荡器和放大器的技术发展趋势进行展望。Qswitching is the main way for thuliumdoped fiber lasers to generate nanosecond pulses.First,the application status of active Qswitching,passive Qswitching,and gain switching in thuliumdoped fiber oscillators is introduced,and the advantages and disadvantages of the three technologies are compared and analyzed.Second,the typical research results and technical bottlenecks of nanosecond thuliumdoped fiber amplifiers with narrow pulse width,high average power,and high pulse energy are introduced,and the optimization measures are analyzed from three aspects:thermal management,nonlinear effect suppression,and amplified spontaneous emission suppression.Finally,the technology development trend of nanosecond thuliumdoped fiber oscillator and amplifier is prospected.

关 键 词：激光器 纳秒掺铥光纤激光器 主动调Q 被动调Q 增益调制 

分 类 号：TN248.1[电子电信—物理电子学]