Improvement in the temporal contrast in the tens of ps range of the multi-PW Apollon laser front-end

We demonstrate the impact of the optics roughness in Öffner stretchers used in chirped pulse amplification laser chains and how it is possible to improve the temporal contrast ratio in the temporal range of 10–100 ps by adequately choosing the optical quality of the key components. Experimental demo...

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Bibliographic Details
Published in:Optics letters 2020-08, Vol.45 (16), p.4599-4602
Main Authors: Ranc, Lucas, Le Blanc, Catherine, Lebas, Nathalie, Martin, Luc, Zou, Ji-Ping, Mathieu, François, Radier, Christophe, Ricaud, Sandrine, Druon, Frederic, Papadopoulos, Dimitris
Format: Article
Language:English
Subjects:
Engineering Sciences
Lasers
Optics
Photonic
Physics
Stretchers
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Summary:We demonstrate the impact of the optics roughness in Öffner stretchers used in chirped pulse amplification laser chains and how it is possible to improve the temporal contrast ratio in the temporal range of 10–100 ps by adequately choosing the optical quality of the key components. Experimental demonstration has been realized in the front-end source of the multi-petawatt (PW) laser facility Apollon, resulting in an enhancement of the contrast ratio by two to three orders of magnitude.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.401272