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Journal Articles Optics Express Year : 2022

Survey of spatio-temporal couplings throughout high-power ultrashort lasers

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Antoine Jeandet
Spencer Jolly
Jean-Philippe Goddet
Marie Ouillé
François Sylla
  • Function : Author
Cédric Thaury
Fabien Quéré
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  • PersonId : 855546

Abstract

The investigation of spatio-temporal couplings (STCs) of broadband light beams is becoming a key topic for the optimization as well as applications of ultrashort laser systems. This calls for accurate measurements of STCs. Yet, it is only recently that such complete spatio-temporal or spatio-spectral characterization has become possible, and it has so far mostly been implemented at the output of the laser systems, where experiments take place. In this survey, we present for the first time STC measurements at different stages of a collection of high-power ultrashort laser systems, all based on the chirped-pulse amplification (CPA) technique, but with very different output characteristics. This measurement campaign reveals spatio-temporal effects with various sources, and motivates the expanded use of STC characterization throughout CPA laser chains, as well as in a wider range of types of ultrafast laser systems. In this way knowledge will be gained not only about potential defects, but also about the fundamental dynamics and operating regimes of advanced ultrashort laser systems.
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Dates and versions

hal-03614423 , version 1 (20-03-2022)

Licence

Attribution - CC BY 4.0

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Antoine Jeandet, Spencer Jolly, Antonin Borot, Benoît Bussière, Paul Dumont, et al.. Survey of spatio-temporal couplings throughout high-power ultrashort lasers. Optics Express, 2022, 30, pp.3263. ⟨10.1364/oe.444564⟩. ⟨hal-03614423⟩
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