中国激光, 2020, 47 (10): 1006001, 网络出版: 2020-10-09
10 kW高效率1070 nm光纤放大器的理论与实验研究 
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Theoretical and Experimental Investigation of a 10-kW High-Efficiency 1070-nm Fiber Amplifier
图 & 表
图 1. 30/600 μm掺镱光纤模式弯曲损耗随弯曲半径的变化关系
Fig. 1. Mode bend loss dependent on the bend radius of the 30/600 μm Yb-doped fiber
图 2. 掺镱光纤的输出激光功率变化图。(a)放大器输出激光功率随掺镱光纤长度的变化;(b)掺镱光纤长度为19.2 m时光纤内双端抽运功率和激光功率沿光纤长度方向的变化趋势
Fig. 2. Ytterbium doped fiber output laser power. (a) Relationship between the output laser power and the Yb3+ doped fiber length; (b) variation of the dual-end pump power and the output laser power along the fiber when the Yb3+ doped fiber length is 19.2 m
图 4. 种子光源输出光谱及光束质量。(a)激光光谱;(b)光束质量
Fig. 4. Spectrum and beam quality of the seed laser. (a) Spectrum; (b) beam quality
图 5. 不同掺杂光纤弯曲半径对应的输出激光功率及光束质量
Fig. 5. Output laser power and beam quality dependent on the bend radius of the Yb-doped fiber
图 7. 放大器输出激光光谱及光束质量。(a)激光光谱;(b)激光光束质量
Fig. 7. Spectra and beam quality of the output signal laser. (a) Spectra; (b) beam quality
图 8. 放大器满功率状态下主要位置的温度。(a)放大器反向合束器与掺杂光纤熔点及掺杂光纤温度;(b)放大器输出包层光剥离器温度;(c)放大器正反向合束器温度
Fig. 8. Temperature measurements of the amplifier compositions when operating at the full laser power. (a) Yb-doped fiber temperature and temperature of the splicing point between the backward combiner and the doped fiber; (b) temperature of the output cladding light stripper; (c) temperature of the forward and backward combiners
陈晓龙, 何宇, 徐中巍, 郭晓晨, 叶韧, 刘恺, 杨依枫, 沈辉, 张海波, 于春雷, 何兵, 胡丽丽, 周军. 10 kW高效率1070 nm光纤放大器的理论与实验研究[J]. 中国激光, 2020, 47(10): 1006001. Chen Xiaolong, He Yu, Xu Zhongwei, Guo Xiaochen, Ye Ren, Liu Kai, Yang Yifeng, Shen Hui, Zhang Haibo, Yu Chunlei, He Bing, Hu Lili, Zhou Jun. Theoretical and Experimental Investigation of a 10-kW High-Efficiency 1070-nm Fiber Amplifier[J]. Chinese Journal of Lasers, 2020, 47(10): 1006001.
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