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Proceedings Paper

Suppression of gain narrowing with a combination of negative and positive CPA
Author(s): M. P. Kalashnikov; K. Osvay
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Paper 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 supports pulse spectrum substantially 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 Petawatt and higher power levels.

Paper Details

Date Published: 25 July 2007
PDF: 8 pages
Proc. SPIE 6735, International Conference on Lasers, Applications, and Technologies 2007: High-Power Lasers and Applications, 67350N (25 July 2007); doi: 10.1117/12.753233
Show Author Affiliations
M. P. Kalashnikov, Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
K. Osvay, Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (Germany)


Published in SPIE Proceedings Vol. 6735:
International Conference on Lasers, Applications, and Technologies 2007: High-Power Lasers and Applications

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