Coherent beam combining of 61 femtosecond fiber amplifiers

被引：133

作者：

Fsaifes, Ihsan ^{[1
]}

Daniault, Louis ^{[1
]}

Bellanger, Severine ^{[1
]}

Veinhard, Matthieu ^{[1
]}

Bourderionnet, Jerome ^{[2
]}

Larat, Christian ^{[2
]}

Lallier, Eric ^{[2
]}

Durand, Eric ^{[3
]}

Brignon, Amaud ^{[2
]}

Chanteloup, Jean-Christophe ^{[1
]}

机构：

[1] Inst Polytech Paris, Ecole Polytech, XCAN, F-91128 Palaiseau, France

[2] Thales Res & Technol, 1 Ave Augustin Fresnel, F-91767 Palaiseau, France

[3] Thales LAS France SAS, 2 Ave Gay Lussac, F-78995 Elancourt, France

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 14期

基金：

欧盟地平线“2020”;

关键词：

COMBINATION; DEBRIS; LASER;

D O I：

10.1364/OE.394031

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the coherent beam combining of 61 femtosecond fiber chirped-pulse amplifiers in a tiled-aperture configuration along with an interferometric phase measurement technique. Relying on coherent beam recombination in the far field, this technique appears suitable for the combination of a large number of fiber amplifiers. The 61 output beams are stacked in a hexagonal arrangement and collimated through a high fill factor hexagonal micro-lens array. The residual phase error between two fibers is as low as lambda/90 RMS, while a combining efficiency of similar to 50% is achieved. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：20152 / 20161

页数：10

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