High-energy Q-switched 16-core tapered rod-type fiber laser system

被引：7

作者：

Aleshire, Christopher ^{[1
]}

Steinkopff, Albrecht ^{[1
]}

Klenke, Arno ^{[1
,2
]}

Jauregui, Cesar ^{[1
]}

Kuhn, Stefan ^{[3
]}

Nold, Johannes ^{[3
]}

Haarlammert, Nicoletta ^{[3
]}

Schreiber, Thomas ^{[3
]}

Limpert, Jens ^{[1
,2
,3
]}

机构：

[1] Friedrich Schiller Univ Jena, Inst Appl Phys, Albert Einstein Str 15, D-07745 Jena, Germany

[2] Helmholtz Inst Jena, Frobelstieg 3, D-07743 Jena, Germany

[3] Fraunhofer Inst Appl Opt & Precis Engn, Albert Einstein Str 7, D-07745 Jena, Germany

来源：

OPTICS LETTERS | 2022年 / 47卷 / 07期

基金：

欧洲研究理事会;

关键词：

YB-DOPED FIBER; ULTRAFAST; MJ; KW;

D O I：

10.1364/OL.454287

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

High-energy Q-switched master oscillator power amplifier systems based on rod-type 4x4 multicore fibers are demonstrated, achieving energy up to 49 mJ in ns-class pulses. A tapered fiber geometry is tested that maintains low mode order in large multimode output cores, improving beam quality in comparison to a similar fiber with no taper. The tapered fiber design can be scaled both in the number of amplifying cores and in the dimensions of the cores themselves, providing a potential route toward joule-class fiber lasers systems. (C) 2022 Optica Publishing Group

引用

页码：1725 / 1728

页数：4

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