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(1+1)型长距离侧面泵浦光纤实现17.4kW激光输出

Gao Cong,Liu Nian,Li Fengyun,Liu Yu,Dai Jiangyun,Shen Changle,He Hongle,Lü Jiakun,Li Fang,Zhang Lihua,Li Yuwei, Jiang Lei,Guo Chao,Tao Rumao,Ke Weiwei,Zhang Haoyu,Wang Jianjun,Lin Honghuan,Jing Feng

High Power Laser and Particle Beams（2022）

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Abstract
长距离侧面泵浦激光光纤在泵浦光注入、热管理、非线性抑制等方面具有天然优势,是实现高功率激光输出的有效途径.研制了(1+1)型长距离侧面泵浦激光光纤,采用1018 nm同带泵浦反向注入方式实现了17.4 kW激光输出,斜率效率为82.1％,3 dB线宽为1.3 nm,拉曼抑制比为37.8 dB.研究结果展示了长距离侧面泵浦光纤作为数十千瓦光纤激光放大器增益介质的巨大应用潜力.
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