| 5 kW全光纤结构1018 nm激光合成 |
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| 引用本文： | 谷炎然,冷进勇,肖虎,陈子伦,周朴,刘泽金.5 kW全光纤结构1018 nm激光合成[J].强激光与粒子束,2017,29(12):120101. |
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| 作者姓名： | 谷炎然 冷进勇 肖虎 陈子伦 周朴 刘泽金 |
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| 作者单位： | 1.国防科技大学 前沿交叉学科学院, 长沙 41 0073; |
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| 摘 要： | 光纤激光同带抽运方案具有泵浦亮度高、量子亏损小等优势，有着巨大的功率提升潜力，是近年来国际上的研究热点。1018 nm光纤激光可作为高功率掺镱光纤激光器的高效同带抽运源，但是单个1018 nm光纤激光器输出功率有限，光束合成是突破这一局限的重要方案。基于19台单模1018 nm光纤激光器和一个191光纤功率合束器，搭建了一套全光纤结构激光合成系统，实现了5 kW的1018 nm合成激光输出。
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| 关 键 词： | 光纤激光器 光纤合束器 激光合成 |
| 收稿时间： | 2017-10-10 |
5 kW all-fiber 1018 nm laser combining |
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| Affiliation: | 1.College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China;2.Hunan Provincial Key Laboratory of High Energy Laser Technology,National University of Defense Technology,Changsha 410073,China;3.Hunan Provincial Collaborative Innovation Center of High Power Fiber Laser,Changsha 410073,China |
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| Abstract: | The scheme of tandem pumping has drawn a lot of interest in fiber laser field for their outstanding characteristics, which include high-brightness, low quantum defect, and great potential for power scaling. The 1018 nm laser can be used as an efficient tandem pumping source for high-power ytterbium fiber laser, but it is difficult to improve signal fiber laser output power. One of the efficiency methods to break through this limitation is beam combining. In this paper, based on 19 single-mode 1018 nm fiber lasers and a 191 fiber combiner, we setup an all-fiber schematic laser combining system, and achieve 5 kW laser output with 1018 nm. |
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