sub-500 fs宽度2μm光纤激光振荡器研究进展(特邀)  

Research Progress of Sub-500 fs 2μm Fiber Laser Oscillator(Invited)

作　　者：马晓冉 张恒[2,4] 冯天利[1,2,4] 李涛 杨克建[1,2,3] MA Xiaoran;ZHANG Heng;FENG Tianli;LI Tao;YANG Kejian(Key Laboratory of Laser&Infrared System,Ministry of Education,Shandong University,Qingdao,China;School of Information Science and Engineering,Shandong University,Qingdao,China;Institute of Crystal Materials,Shandong University,Jinan,China;Key Laboratory for Laser Technology and Application,Shandong University,Qingdao,China)

机构地区：[1]山东大学激光与红外系统集成技术教育部重点实验室,山东青岛 [2]山东大学信息科学与工程学院,山东青岛 [3]山东大学晶体材料研究所,济南 [4]山东大学山东省激光技术与应用重点实验室,山东青岛

出　　处：《光电技术应用》2024年第1期1-10,共10页Electro-Optic Technology Application

摘　　要：2μm波段超快激光持续时间短,峰值功率高,光谱范围宽,同时处在大气窗口,多种有机、无机气体分子的吸收峰和人眼安全波段,已广泛应用于生物医疗、激光雷达和非金属材料加工等领域。利用光纤锁模激光振荡器产生2μm波段超快激光是一种最直接简单的技术方法,具有结构紧凑、光束质量高和成本低等优点。然而,目前关于sub-500 fs的2μm波段的光纤激光振荡器却鲜有报道。基于传统孤子和色散管理孤子两种孤子锁模方式,全面介绍了目前2μm波段sub-500 fs光纤振荡器的研究进展,并总结了实现sub-500 fs脉宽2μm超快激光的关键技术。针对不同的应用领域的具体需求,对2μm超快激光光纤振荡器的未来发展进行展望。The 2μm wavelength ultrafast laser,with its short duration,high peak power,wide spectral range,and compatibility with the atmospheric window,has found extensive applications in various fields including biomed⁃icine,laser radar and non-metallic material processing,among others.Utilizing a fiber mode-locked oscillator to generate the 2μm wavelength ultrafast laser offers a direct and straightforward technology,boasting advantages such as a compact structure,high beam quality and low cost.However,there have been limited reports on sub-500 fs 2μm wavelength fiber laser oscillators.A comprehensive review of the research progress in sub-500 fs fiber oscilla⁃tors within the 2μm wavelength range is provided,utilizing both conventional soliton and dispersion-managed soli⁃ton mode-locking methods.Additionally,the key technologies for achieving sub-500 fs pulse width 2μm ultrafast lasers are summarized.An outlook on the future development of 2μm ultrafast fiber oscillators is presented,taking into account the specific requirements of different application fields.

关 键 词：光纤激光器 2μm sub-500 fs 超短脉冲 振荡器 

分 类 号：TN248[电子电信—物理电子学]