国产25/400μm掺镱双包层光纤实现2.2 kW窄线宽单模激光输出  

2.2 kW Narrow-Linewidth Single-Mode Laser Output Using Homemade 25/400 μm Yb-Doped Double Cladding Fiber

作　　者：李学文 于春雷 胡丽丽[2,3] 沈辉 全昭[1] 李秋瑞[1] 楼风光[3] 王孟[3] 张磊 漆云凤[1,2] 何兵[1,2] 周军[1,2] Li Xuewen;Yu Chunlei;HuLili;Shen Hui;Quan Zhao;Li Qiurui;Lou Fengguang;Wang Meng;Zhang Lei;Qi Yunfeng;He Bing;Zhou Jun(Shanghai Key Laboratory of All Solid-State Laser and Applied Techniqtces,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Materials for High Power Laser,Shanghai Institute of Optics and Fine Mechanics t Chinese Academy of Sciences,Shanghai 201S00,China)

机构地区：[1]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 [2]中国科学院大学材料与光电研究中心,北京100049 [3]中国科学院上海光学精密机械研究所强激光材料重点实验室,上海201800

出　　处：《光学学报》2019年第6期415-418,共4页Acta Optica Sinica

基　　金：国家自然科学基金(61735007,61405202,61705243,61775224);上海市自然科学基金(16ZR1440100,16ZR1440200);上海市优秀技术带头人计划(17XD1424800);上海市青年科技英才扬帆计划(17YF1421200)

摘　　要：基于自主研制的均匀掺杂低热光系数25/400μm掺镱双包层光纤,开展了全光纤高功率窄线宽光纤激光放大实验。激光系统实现了中心波长为1060.3 nm、线宽为25 GHz、最高功率为2.2 kW的单模激光输出,其斜率效率达78%,光束质量因子M^2≈1.2,其功率是目前报道的基于国产25/400μm掺镱双包层光纤窄线宽放大器单模激光输出的最高功率。Based on the self-developed large mode area Yb-doped double-cladding 25/400 μm active fiber with uniform doping and low thermo-optic coefficient, an all-fiber high-power narrow-linewidth fiber laser amplification experiment was carried out. The laser system achieves a single-mode fiber laser output with a maximum power of 2.2 kW, a linewidth of 25 GHz, and a center wavelength of 1060.3 nm, with a slope efficiency of 78% and a beam quality factor of M^2≈1.2. This is the highest output power currently reported for narrow-linewidth single-mode amplifiers based on domestic Yb-doped double-cladding 25/400 μm active fiber, to the best of our knowledge.

关 键 词：光纤激光 增益光纤 热光系数 单模 窄线宽激光器 

分 类 号：TN248[电子电信—物理电子学]