Millijoule ultrafast optical parametric amplification as replacement for high-gain regenerative amplifiers  

作　　者：Yannik Zobus Christian Brabetz Johannes Hornung Jonas BOhland Dirk Reemts Ji-Ping Zou Markus Loeser Daniel Albach Ulrich Schramm Vincent Bagnoud 

机构地区：[1]Technische Universität Darmstadt,Darmstadt,Germany [2]GSI Helmholtzzentrum für Schwerionenforschung GmbH,Darmstadt,Germany [3]Laboratoire pour l’Utilisation des Lasers Intenses,CNRS,Ecole Polytechnique,Palaiseau,France [4]Helmholtz-Zentrum Dresden-Rossendorf,Dresden,Germany [5]Technische Universität Dresden,Dresden,Germany [6]Helmholtz-Institut Jena,Jena,Germany

出　　处：《High Power Laser Science and Engineering》2023年第4期33-44,共12页高功率激光科学与工程（英文版）

基　　金：funding through the ATHENA project of the Helmholtz Association and through the Loewe program of the state of Hesse;funded by the European Union via the Euratom Research and Training Programme (grant agreement No. 101052200–EUROfusion);the European Union’s Horizon 2020 research and innovation program under grant agreement No. 871124 Laserlab-Europe

摘　　要：We report on the development of an ultrafast optical parametric amplifier front-end for the Petawatt High Energy Laser for heavy Ion eXperiments(PHELIX)and the Petawatt ENergy-Efficient Laser for Optical Plasma Experiments(PEnELOPE)facilities.This front-end delivers broadband and stable amplification up to 1 mJ per pulse while maintaining a high beam quality.Its implementation at PHELIX allowed one to bypass the front-end amplifier,which is known to be a source of pre-pulses.With the bypass,an amplified spontaneous emission contrast of 4.9×10^(−13)and a pre-pulse contrast of 6.2×10^(−11)could be realized.Due to its high stability,high beam quality and its versatile pump amplifier,the system offers an alternative for high-gain regenerative amplifiers in the front-end of various laser systems.

关 键 词：high-intensity laser temporal laser contrast ultrafast optical parametric amplification 

分 类 号：TN722[电子电信—电路与系统]