Coherent beam combining of seven fiber chirped-pulse amplifiers using an interferometric phase measurement

被引：27

作者：

Heilmann, Anke ^{[1
]}

Le Dortz, Jeremy ^{[2
]}

Daniault, Louis ^{[1
]}

Fsaifes, Ihsan ^{[1
]}

Bellanger, Severine ^{[1
]}

Bourderionnet, Jerome ^{[2
]}

Larat, Christian ^{[2
]}

Lallier, Eric ^{[2
]}

Antier, Marie ^{[3
]}

Durand, Eric ^{[3
]}

Simon-Boisson, Christophe ^{[3
]}

Brignon, Arnaud ^{[2
]}

Chanteloup, Jean-Christophe ^{[1
]}

机构：

[1] Univ Paris Saclay, Ecole Polytech, 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 | 2018年 / 26卷 / 24期

关键词：

Pulse repetition rate - Interferometry - Fiber amplifiers;

D O I：

10.1364/OE.26.031542

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Coherent beam combining in tiled-aperture configuration is demonstrated on seven femtosecond fiber amplifiers using an interferometric phase measurement technique. The residual phase error between two fibers is as low as lambda/55 RMS and a combination efficiency of 48% has been achieved. The combined pulses are compressed to 216 fs, delivering 71 W average power at a repetition rate of 55 MHz. Operating the laser system in a nonlinear regime with an estimated B-integral of 5 rad yields a combining efficiency of 45% with the same phase stability. These results pave the way to very large high-power and high energy coherent beam combining systems. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：31542 / 31553

页数：12

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