高效率全国产化10 kW光纤激光器
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摘要
基于自主研发的大模场增益光纤和无源器件,采用双端抽运技术,搭建了一台全国产化10 kW光纤激光器,实现了非线性效应抑制。该激光器的功率放大器的输出功率达到10.14 kW,中心波长为1070.36 nm,3 dB光谱带宽为5.32 nm。其主放大级最大光-光转换效率为87.8%,斜率效率为89.2%,成为目前国内报道的效率最高的10 kW级光纤激光器。
We propose a 10 kW fiber laser by using home-made large mode field gain fiber, passive components and dual-end-pumping technique to suppress nonlinear effects. A power amplifier with output power of 10.14 kW, wavelength of 1070.36 nm and 3 dB bandwidth of 5.32 nm is established. For the main amplification stage, the maximum optical-optical efficiency is 87.8% and the slope efficiency is up to 89.2%. To the best of our knowledge, the proposed laser is the most efficient 10 kW-level fiber laser reported in China.
We propose a 10 kW fiber laser by using home-made large mode field gain fiber, passive components and dual-end-pumping technique to suppress nonlinear effects. A power amplifier with output power of 10.14 kW, wavelength of 1070.36 nm and 3 dB bandwidth of 5.32 nm is established. For the main amplification stage, the maximum optical-optical efficiency is 87.8% and the slope efficiency is up to 89.2%. To the best of our knowledge, the proposed laser is the most efficient 10 kW-level fiber laser reported in China.
引文
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[10] Lin H H, Tang X, Li C Y, et al. The localization single-fiber laser system obtained 10.6 kW laser output[J]. Chinese Journal of Lasers, 2018, 45(3): 0315001. 林宏奂, 唐选, 李成钰, 等. 全国产单纤激光系统获得 10.6 kW 激光输出[J]. 中国激光, 2018, 45(3): 0315001.
[11] Lin A X, Zhan H, Peng K, et al. 10 kW-level pump-gain integrated functional laser fiber[J]. High Power Laser and Particle Beams, 2018, 30(6): 060101. 林傲祥, 湛欢, 彭昆, 等. 国产复合功能光纤实现万瓦激光输出[J]. 强激光与粒子束, 2018, 30(6): 060101.
[2] Zervas M N. High power ytterbium-doped fiber lasers: fundamentals and applications[J]. International Journal of Modern Physics B, 2014, 28(12): 1442009.
[3] Zervas M N, Codemard C A. High power fiber lasers: a review[J]. IEEE Journal of Selected Topics in Quantum Electronics, 2014, 20(5): 219-241.
[4] Jauregui C, Limpert J, Tünnermann A. High-power fibre lasers[J]. Nature Photonics, 2013, 7(11): 861-867.
[5] Dawson J W, Messerly M J, Beach R J, et al. Analysis of the scalability of diffraction-limited fiber lasers and amplifiers to high average power[J]. Optics Express, 2008, 16(17): 13240-13266.
[6] Eidam T, Wirth C, Jauregui C, et al. Experimental observations of the threshold-like onset of mode instabilities in high power fiber amplifiers[J]. Optics Express, 2011, 19(14): 13218-13224.
[7] Zhu J J, Zhou P, Ma Y X, et al. Power scaling analysis of tandem-pumped Yb-doped fiber lasers and amplifiers[J]. Optics Express, 2011, 19(19): 18645-18654.
[8] Yang L, Zheng J J, Hao L Y, et al. Influence of signal spectral width characteristic on SBS threshold of single frequency fiber amplifier[J]. Chinese Journal of Lasers, 2017, 44(9): 0901009. 杨磊, 郑加金, 郝丽云, 等. 信号光谱宽特性对单频光纤放大器SBS阈值的影响[J]. 中国激光, 2017, 44(9): 0901009.
[9] Photonics I P G. IPG Photonics successfully tests world′s first 10 kilowatt single-mode production laser[EB/OL]. (2009-06-16)[2018-12-24]. http://www.ipgphotonics.com/Collateral/Documents/English-US/PR_FinaI_10kW_SM laser, pdf(2009).
[10] Lin H H, Tang X, Li C Y, et al. The localization single-fiber laser system obtained 10.6 kW laser output[J]. Chinese Journal of Lasers, 2018, 45(3): 0315001. 林宏奂, 唐选, 李成钰, 等. 全国产单纤激光系统获得 10.6 kW 激光输出[J]. 中国激光, 2018, 45(3): 0315001.
[11] Lin A X, Zhan H, Peng K, et al. 10 kW-level pump-gain integrated functional laser fiber[J]. High Power Laser and Particle Beams, 2018, 30(6): 060101. 林傲祥, 湛欢, 彭昆, 等. 国产复合功能光纤实现万瓦激光输出[J]. 强激光与粒子束, 2018, 30(6): 060101.