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Cotel A, Crotti C, Audebert P, et al. Tiled-grating compression of multiterawatt laser pulses. Opt Lett. 2007;32(12):1749-51doi: 10.1364/ol.32.001749.
Cotel, A., Crotti, C., Audebert, P., Le Bris, C., & Le Blanc, C. (2007). Tiled-grating compression of multiterawatt laser pulses. Optics letters, 32(12), 1749-51. https://doi.org/10.1364/ol.32.001749
Cotel, Arnaud, et al. "Tiled-grating compression of multiterawatt laser pulses." Optics letters vol. 32,12 (2007): 1749-51. doi: https://doi.org/10.1364/ol.32.001749
Cotel A, Crotti C, Audebert P, Le Bris C, Le Blanc C. Tiled-grating compression of multiterawatt laser pulses. Opt Lett. 2007 Jun 15;32(12):1749-51. doi: 10.1364/ol.32.001749. PMID: 17572768.
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Opt Lett. 2007 Jun 15;32(12):1749-51. doi: 10.1364/ol.32.001749.

Tiled-grating compression of multiterawatt laser pulses.

Optics letters

Arnaud Cotel, Caroline Crotti, Patrick Audebert, Catherine Le Bris, Catherine Le Blanc

Affiliations

  1. Laboratoire pour l'Utilisation des Lasers Intense, Ecole Polytechnique, CNRS, CEA, UPMC, Palaiseau, France. [email protected]

PMID: 17572768 DOI: 10.1364/ol.32.001749

Abstract

High-energy petawatt lasers require large diffraction gratings for pulse compression. As an alternative to meter-sized gratings, we demonstrate the capability of a tiled-grating system to compress multiterawatt subpicosecond laser pulses. Using a 100 TW-class Nd:glass chirped-pulse amplification laser facility, we report on the performance of a two-grating mosaic to compress high-energy pulses to 2.5 J, 450 fs (5.5 TW) in air with a beam size of 50 mm and energy transmission of 63%. Stability of the grating mosaic alignment was realized by use of an accurate nanopositioning optomechanical system. The output Gaussian spectrum was preserved from grating-gap spectral clipping and was free of modulation.

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