2.62kW,30GHz窄线宽线偏振近衍射极限全光纤激光器  

2.62-kW, 30-GHz Linearly Polarized All-Fiber Laser with Narrow Linewidth and Near-Diffraction-Limit Beam Quality

作　　者：王岩山[1,2,3,4] 马毅 孙殷宏[1,3] 王珏[1,3] 常哲[1,3,4] 彭万敬 杨小波 朱日宏[2] 张凯[1,3] 唐淳 Wang Yanshan;Ma Yi;Sun Yinhong;Wang Jue;Chang Zhe';Peng Wanjing;Yang Xiaobo;Zhu Rihong;Zhang Kai;Tang Chun(Institute of Applied Electronics,China Academy of Engineering Physics(CAEP),Mianyang,Sichuan 621900,China;Key Laboratory of Advanced Solid Laser,Ministry of Industry and.Information Technology,Nanjing University of Science and Technology,Nanjing,Jiangsu 210094,China;Key Laboratory of Science and Technology on High Energy Laser,CAEP,Mianyang,Sichuan 621900,China;Graduate School of CAEP,Beijing 100088,China)

机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621900 [2]南京理工大学先进固体激光工业与信息化部重点实验室,江苏南京21009 [3]中国工程物理研究院高能激光科学与技术重点实验室,四川绵阳621900 [4]中国工程物理研究院研究生部,北京100088

出　　处：《中国激光》2019年第12期305-307,共3页Chinese Journal of Lasers

基　　金：国家自然科学基金(61605191);中国工程物理研究院发展基金(TCGH1001-02);中国工程物理研究院院长基金(YZJJLX2016011)

摘　　要：通过同时抑制受激布里渊散射和自脉冲效应,实现了具有窄线宽和近衍射极限光束质量的高功率、线偏振全光纤放大器,其最高输出激光功率为2.62 kW,光光效率达到了86.7%,光束质量M^2、偏振消光比及光谱线宽在放大过程中基本保持不变,M^2小于1.3,偏振消光比约为96.3%,3 dB线宽为32 GHz,20 dB二阶矩线宽为30 GHz。2.62 kW是目前报道的窄线宽线偏振全光纤结构激光器能达到的最高输出功率。We demonstrate a high-power, linearly polarized all-fiber amplifier with a narrow linewidth and near-diffraction-limit beam quality by suppressing the stimulated Brillouin scattering and self-pulsing effects simultaneously. The maximum laser power is 2.62 kW with 86.7% optical-optical efficiency. Beam quality(M^2), polarization extinction ratio(PER), and linewidth are well maintained during power amplification with M^2<1.3, PER ~96.3%, a 3 dB linewidth of 32 GHz, and a 20 dB second-order moment linewidth of 30 GHz. To the best of our knowledge, this is the largest demonstration of an all-fiber laser with narrow linewidth, linear polarization, and beam quality near the diffraction limit.

关 键 词：激光器 高功率光纤激光 窄线宽 线偏振 

分 类 号：TN248.1[电子电信—物理电子学]