国产掺镱锥形光纤实现百瓦毫焦级窄线宽纳秒脉冲输出  

Output of 100 W 1-mJ narrow linewidth nanosecond-pulsed fiber amplifier based on home-made Yb-doped tapered fiber

作　　者：黄智蒙 王苏钰 张帆[1] 耿鹏程[2] 张慧嘉[2] 潘蓉[2] 曾安 夏汉定[1] 姚泽锋 蒋学君[1] 张锐[1] 冯斌[1] 衣永青[2] 李平[1] Huang Zhimeng;Wang Suyu;Zhang Fan;Geng Pengcheng;Zhang Huijia;Pan Rong;Zeng An;Xia Handing;Yao Zefeng;Jiang Xuejun;Zhang Rui;Feng Bin;Yi Yongqing;Li Ping(Laser Fusion Research Center,CAEP,Mianyang 621900,China;The 46th Research Institute,China Electronics Technology Group Corporation,Tianjin 300220,China;Mianyang Sci-Tech City Institute of Photon Technology,Mianyang 621000,China;School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China)

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]中国电子科技集团公司第四十六研究所,天津300220 [3]绵阳科技城光子技术研究院,四川绵阳621000 [4]电子科技大学信息与通信工程学院,成都611731

出　　处：《强激光与粒子束》2025年第1期1-3,共3页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(62075201)。

摘　　要：窄线宽大能量纳秒脉冲单模光纤放大器具有高效率、高光束质量和小体积等优点,在激光探测、工业加工等应用领域中具有明显的竞争优势。近期中国工程物理研究院激光聚变研究中心基于国产锥形掺镱光纤和主振荡功率放大器(MOPA),实现了平均功率100 W、脉冲宽度100 ns、单脉冲能量1 mJ、峰值功率10 kW的窄线宽(Δλ_(3dB)=0.49 nm)、线偏振(PER:12.3 dB)、近单模(M^(2)=1.49)全光纤结构1064 nm激光输出。通过优化增益光纤和放大器设计,可进一步提升放大器的输出能量、功率和光束质量。Thanks to the advantages of compact,high beam quality and high conversion efficiency,narrow linewidth high pulse energy single mode nanosecond-pulsed fiber amplifier is highly desired in laser detection and industry applications.Recently,an all-fiber amplifier with a home-made Yb-doped tapered fiber produces linearly polarized(12.3 dB PER)100 ns,1 mJ pulses with 0.49 nm linewidth,M^(2)=1.49,100 W of average output power and 10 kW peak power at 1064 nm.It is believed that the pulse energy,output power and beam quality can be further improved by optimizing the Yb-doped fiber and design of amplifier.

关 键 词：锥形掺镱光纤 窄线宽 光纤放大器 纳秒脉冲 

分 类 号：TN248[电子电信—物理电子学]