High energy femtosecond laser micromachining with hollow core photonic crystal fiber delivery | |
Li, Feng; Yang, Zhi; Lv, Zhiguo; Wang, Yishan; Li, Qianglong; Wei, Yufeng; Yang, Yang; Yang, Xiaojun; Zhao, Wei | |
刊名 | Optik |
2019-10 | |
卷号 | 194 |
ISSN号 | 00304026 |
DOI | 10.1016/j.ijleo.2019.163093 |
产权排序 | 1 |
英文摘要 | In this paper, we demonstrate a new way to deliver the high energy femtosecond laser with Kagome-type hollow core photonic crystal fiber for micromachining compared to the traditional free space laser delivery. To achieve the high coupling efficiency and overcome the nonlinear effect in the delivery, the coupling system is optimized and the fiber is vacuum pumped to less than 5 mbar. High delivery efficiency more than 90% is achieved. To our best knowledge, this is the highest efficiency of femtosecond laser delivered by Kagome type hollow core fiber. With vacuum pump, we lowered the nonlinear effect and make the laser beam have good beam profile and slightly pulse duration change even in the delivery of laser with the pulse energy of 100 μJ, average power of 20 W, and pulse duration of 234 fs. The whole system is also used to make micromachining of aluminum and stainless steel with good processing quality. © 2019 Elsevier GmbH |
语种 | 英语 |
出版者 | Elsevier GmbH |
WOS记录号 | WOS:000494476200067 |
内容类型 | 期刊论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/31608] |
专题 | 西安光学精密机械研究所_光子制造中心 |
通讯作者 | Li, Feng |
作者单位 | Department of State Key Laboratory of Transient Optics and Photonics, Xi'an institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China |
推荐引用方式 GB/T 7714 | Li, Feng,Yang, Zhi,Lv, Zhiguo,et al. High energy femtosecond laser micromachining with hollow core photonic crystal fiber delivery[J]. Optik,2019,194. |
APA | Li, Feng.,Yang, Zhi.,Lv, Zhiguo.,Wang, Yishan.,Li, Qianglong.,...&Zhao, Wei.(2019).High energy femtosecond laser micromachining with hollow core photonic crystal fiber delivery.Optik,194. |
MLA | Li, Feng,et al."High energy femtosecond laser micromachining with hollow core photonic crystal fiber delivery".Optik 194(2019). |
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