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Nonlinear compression to sub-30-fs, 0.5 mJ pulses at 135 W of average power

 
: Hädrich, Steffen; Klenke, Arno; Hoffmann, Armin; Eidam, Tino; Gottschall, Thomas; Rothhardt, Jan; Limpert, Jens; Tünnermann, Andreas

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Optics Letters 38 (2013), No.19, pp.3866-3869
ISSN: 0146-9592
English
Journal Article
Fraunhofer IOF ()

Abstract
Incorporation of coherent combination into a state-of-the-art fiber-chirped pulse amplification system obtains 1.1 mJ, 340 fs pulses with up to 280 W of average power at 250 kHz repetition rate. Propagation of this laser pulse inside a krypton-filled hollow-core fiber results in significant spectral broadening. Chirped mirrors are used to compress the pulses to 26 fs, 540 µJ (135 W) leading to a peak power of more than 11 GW. This unprecedented combination of high peak and average power ultrashort pulses opens up new possibilities in multidimensional surface science and coherent soft x-ray generation.

: http://publica.fraunhofer.de/documents/N-259791.html