Tailoring coherent beam combined laser pulse trains for high peak and average power applications

被引:0
|
作者
Ranely-Verge-Depre, Claude-Alban [1 ,2 ]
Lechevalier, Corentin [1 ]
Andrieu, Jordan [1 ]
Fsaifes, Ihsan [1 ]
Jovanovic, Igor [3 ]
Chanteloup, Jean-Christophe [1 ]
机构
[1] Sorbonne Univ, Ecole Polytech, Inst Polytech Paris, LULI,CNRS,CEA, F-91120 Palaiseau, France
[2] Thales LAS France SAS, Elancourt, France
[3] Univ Michigan, Gerard Mourou Ctr Ultrafast Opt Sci, Ann Arbor, MI USA
来源
HIGH POWER LASER SCIENCE AND ENGINEERING | 2025年 / 12卷
关键词
coherent beam combination; digital laser; laser on demand; laser power management; optical chopper;
D O I
10.1017/hpl.2024.77
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Laser systems based on coherent beam combination (CBC) that rely on tiled pupil architecture intrinsically carry digital capabilities independently applicable to all three essential characteristics of a laser pulse: amplitude, phase and polarization. Those capabilities allow the far-field energy distribution to be flexibly tailored in real time. Operation in the femtosecond regime at high repetition rates gives access to a wide range of applications requiring both high peak and average powers. We address the task of independent peak versus average power adjustment needed for applications seeking to decouple nonlinear phenomena associated with GW peak power from the thermal load inherent to kW average power operation. The technical solutions proposed are presented in the framework of the Ecole Polytechnique XCAN CBC laser platform (61 independent channels) with an emphasis on thermal management measures implemented to ensure its nominal operation.
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页数:8
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