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Applied Physics B

, Volume 81, Issue 8, pp 1059–1062 | Cite as

Suppression of gain narrowing in multi-TW lasers with negatively and positively chirped pulse amplification

  • M.P. Kalashnikov
  • K. Osvay
  • I.M. Lachko
  • H. Schönnagel
  • W. Sandner
Rapid communication

Abstract

A laser scheme implementing a combination of negatively and positively chirped pulse amplification (NPCPA) is demonstrated. This method of amplification suppresses spectral narrowing typically appearing in chirped pulse amplification (CPA) lasers thus supporting pulse spectrum much broader than a conventional CPA. With a NPCPA Ti:Sapphire laser we have achieved laser pulses of 50 nm spectral width and 150 mJ energy without any additional spectral correction. The scheme appears as an easy and reliable solution to preserve spectral bandwidth in Ti:Sapphire lasers, especially at high power levels up to the Petawatt regime.

Keywords

Sapphire Laser Diffraction Grating Temporal Contrast Chirp Sign Pulse Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • M.P. Kalashnikov
    • 1
  • K. Osvay
    • 1
  • I.M. Lachko
    • 1
  • H. Schönnagel
    • 1
  • W. Sandner
    • 1
  1. 1.Max-Born-Institut für Nichtlineare Optik und KurzzeitspektroskopieBerlinGermany

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