11 May 2017 Optimization of a grating pulse stretcher suitable for kJ class 10PW laser system
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Abstract
A comparison of various pulse stretcher designs accommodating material dispersion for a <; 150 fs 10 PW Nd:glass laser system using low dispersion diffraction gratings is presented. Since the pulse amplification demands a high stretch ratio of the stretcher to suppress non-linear effects and a high temporal contrast of the pulse is required to avoid ionization of the experimental targets, the design of the stretcher is a critical part for dispersion management. Here, we compare several designs using only one diffraction grating based on either a Perry-Banks or an Offner stretcher types, mostly at the Littrow angle. The target spectral phase profile is achieved through the tuning of the grating position, the angle of incidence on the grating, the radii of curvature of curved mirrors and the line density of the grating.
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Štěpán Vyhlídka, Štěpán Vyhlídka, Daniel Kramer, Daniel Kramer, Matt Kepler, Matt Kepler, Erhard Gaul, Erhard Gaul, Bedřich Rus, Bedřich Rus, } "Optimization of a grating pulse stretcher suitable for kJ class 10PW laser system", Proc. SPIE 10238, High-Power, High-Energy, and High-Intensity Laser Technology III, 102380T (11 May 2017); doi: 10.1117/12.2270477; https://doi.org/10.1117/12.2270477
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