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1 results

  • Ultra-compact post-compressor on-shot wavefront measurement for beam correction at PHELIX

  • J. B. Ohland, U. Eisenbarth, B. Zielbauer, Y. Zobus, D. Posor, J. Hornung, D. Reemts, V. Bagnoud
  • Journal:
    High Power Laser Science and Engineering / Volume 10 / 2022
    Published online by Cambridge University Press:
    21 April 2022, e18
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  • In order to reach the highest intensities, modern laser systems use adaptive optics to control their beam quality. Ideally, the focal spot is optimized after the compression stage of the system in order to avoid spatio-temporal couplings. This also requires a wavefront sensor after the compressor, which should be able to measure the wavefront on-shot. At PHELIX, we have developed an ultra-compact post-compressor beam diagnostic due to strict space constraints, measuring the wavefront over the full aperture of 28 cm. This system features all-reflective imaging beam transport and a high dynamic range in order to measure the wavefront in alignment mode as well as on shot.