基于简单MOPA结构实现3.08kW全光纤窄线宽线偏振激光输出  

Output of 3.08kW narrow linewidth linearly polarized all-fiber laser based on a simple MOPA structure

作　　者：王岩山[1,2,3] 王珏[1,2] 常哲 彭万敬 孙殷宏[1,2] 马毅[1,2] 高清松[1,2] 张凯[1,2] 唐淳[1,2] Wang Yanshan;Wang Jue;Chang Zhe;Peng Wanjing;Sun Yinhong;Ma Yi;Gao Qingsong;Zhang Kai;Tang Chun(Institute of Applied Electronics,CAEP,Mianyang 621900,China;The Key Laboratory of Science and Technology on High Energy Laser,CAEP,Mianyang 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]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 [3]中国工程物理研究院研究生部,北京100088

出　　处：《强激光与粒子束》2020年第1期23-25,共3页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(61605191);中国工程物理研究院院长基金项目(YZJJLX2016011)

摘　　要：基于简单的主振荡功率放大结构,演示了一种高功率窄线宽线性偏振全光纤激光器,其最大输出功率为3.08 kW,3 dB线宽为0.2 nm。在整个功率缩放过程中,偏振消光比约为94%,光束质量M 2约为1.4。这是国内外首次实现3 kW全保偏光纤激光输出,与基于相位调制的窄线宽激光器相比,该激光器可实现近似的线宽,同时具有受激布里渊散射阈值高、系统结构简单、成本低等特点。We demonstrated a narrow linewidth linearly polarized all-fiber laser operating at maximum output power of 3.08 kW with a 3 dB linewidth of 0.2 nm based on a simple master oscillator power amplifier(MOPA)structure.The polarization extinction ratio(PER)is about 94%and the M 2 is about 1.4 along the whole power scaling process.This is the first demonstration of a 3 kW linearly polarized all-fiber laser output.Compared with the narrow linewidth fiber amplifier based on phase modulation,this system can achieve a nearly same linewidth.Meanwhile,it has the characteristics of high stimulated Brillouin scattering(SBS)threshold,simple structure,and low cost,etc.

关 键 词：全光纤激光器 主振荡功率放大 窄线宽 线偏振 

分 类 号：TN248[电子电信—物理电子学] O439[机械工程—光学工程]