3.5 kW coherently combined ultrafast fiber laser

被引：88
|
作者：
Mueller, Michael [1 ]
Klenke, Arno [1 ,2 ]
Steinkopff, Albrecht [1 ,3 ]
Stark, Henning [1 ]
Tuennermann, Andreas [1 ,2 ,3 ]
Limpert, Jens [1 ,2 ,3 ]
机构：
[1] Friedrich Schiller Univ Jena, Abbe Ctr Photon, Inst Appl Phys, Albert Einstein Str 15, D-07745 Jena, Germany
[2] Helmholtz Inst Jena, Froelstieg 3, D-07743 Jena, Germany
[3] Fraunhofer Inst Appl Opt & Precis Engn, Albert Einstein Str 7, D-07745 Jena, Germany
来源：
OPTICS LETTERS | 2018年 / 43卷 / 24期
基金：
欧洲研究理事会;
关键词：
HIGH-POWER; COMBINATION;
D O I：
10.1364/OL.43.006037
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An ultrafast laser based on the coherent beam combination of four ytterbium-doped step-index fiber amplifiers is presented. The system delivers an average power of 3.5 kW and a pulse duration of 430 fs at an 80 MHz repetition rate. The beam quality is excellent (M-2 < 1.24 . 1.10), and the relative intensity noise is as low as 1% in the frequency span from 1 Hz to 1 MHz. The system is turn-key operable, as it features an automated spatial and temporal alignment of the interferometric amplification channels. (c) 2018 Optical Society of America
引用
收藏
页码：6037 / 6040
页数：4
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