Développement de sources lasers nanosecondes, picosecondes et femtosecondes et applications

Abstract : This two-part thesis focuses on the development of nano and picosecond laser sources and their applications. The first part presents the study, and the realization of a nanosecond laser amplifier chain for the ignition of turboshaft engines. After the repport of the performances and the evolution of this amplifier chain will be presented the results of the tests carried out on a combustion chamber on a test bench at ONERA under low temperatures and low pressures conditions. The second part of this thesis deals with the development of an optical parametric oscillator (OPO) in order to tune in the infrared the wavelength of a pulsed picosecond or femtosecond laser at high cadency and high average power. After presenting the OPO cavity and its performance, we will detail the ability of this OPO to generate compressed femtosecond pulses from pump chirped pulses.
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Gabriel Amiard Hudebine. Développement de sources lasers nanosecondes, picosecondes et femtosecondes et applications. Autre [cond-mat.other]. Université de Bordeaux, 2019. Français. ⟨NNT : 2019BORD0024⟩. ⟨tel-02275805⟩

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