具有1.26兆瓦峰值功率和200瓦平均输出功率的皮秒掺镱锥形光纤激光系统。

Picosecond Yb-doped tapered fiber laser system with 1.26 MW peak power and 200 W average output power.

作者信息

Petrov Andrey, Odnoblyudov Maxim, Gumenyuk Regina, Minyonok Lidiya, Chumachenko Andrey, Filippov Valery

机构信息

Peter the Great St. Petersburg Polytechnical University, Polytechnicheskaya ul. 29, St. Petersburg, 195251, Russia.

Saint-Petersburg National Research University of Information Technologies, Mechanics and Optics, Kronverkskiy pr. 49, St. Petersburg, 197101, Russia.

出版信息

Sci Rep. 2020 Oct 20;10(1):17781. doi: 10.1038/s41598-020-74895-z.

DOI:10.1038/s41598-020-74895-z

PMID:33082462

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7575578/

Abstract

We demonstrate a compact picosecond master-oscillator power-amplifier (MOPA) system based on an Yb-doped polarization-maintaining double-clad tapered fiber (T-DCF) delivering pulses with over 1.26 MW peak power and average output power up to 200 W preserving near diffraction limited beam quality. The unique properties of an active tapered fiber enable to amplify the seed pulses directly with no need for applying of additional stretching technique. This simplified laser system can find the practical implementation in industrial micromachining.

摘要

我们展示了一种基于掺镱保偏双包层锥形光纤（T-DCF）的紧凑型皮秒主振荡功率放大器（MOPA）系统，该系统能产生峰值功率超过1.26兆瓦、平均输出功率高达200瓦的脉冲，且保持接近衍射极限的光束质量。有源锥形光纤的独特特性使得无需应用额外的展宽技术就能直接放大种子脉冲。这种简化的激光系统可在工业微加工中得到实际应用。