Coherent combining of large-aperture high-energy Nd:glass laser amplifiers

被引：0

作者：

Pierre Lebegue ^{[1
,2
]}

Joanna De Sousa ^{[2
]}

Cyril Rapenau ^{[2
]}

Doina Badarau ^{[2
]}

Jordan Andrieu ^{[2
]}

Patrick Audebert ^{[2
]}

Frdric Druon ^{[1
]}

Dimitrios Papadopoulos ^{[2
]}

机构：

[1] Université Paris-Saclay, Institut d'Optique Graduate School, CNRS, Laboratoire Charles Fabry

[2] Laboratoire pour l'Utilisation des Lasers Intenses, Laboratoire Charles Fabry, CNRS,Ecole

来源：

High Power Laser Science and Engineering | 2025年 / 13卷 / 01期

关键词：

D O I：

暂无

中图分类号：

TN248 [激光器]; TN722 [放大器];

学科分类号：

摘要：

We present coherent beam combining of nanosecond pulses with 20-J energy and large beams using a Sagnac interferometer geometry based on Nd:glass rod-type amplifiers. In this study, we demonstrate that coherent beam combining is compatible with large-diameter energetic beams, presenting, therefore, an interesting and solid perspective towards the performance improvement of large-scale laser facilities, especially in terms of high-repetition-rate and highenergy operation. We demonstrate that for energy of 20 J, the coherent combination efficiency is around 92%, with high beam quality and long-term stability. A thorough temporal and spatial characterization of the system's operation is provided to forecast the various potentialities available for large-scale facilities.

引用

页码：42 / 48

页数：7

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