1  kW, 10  mJ, 120  fs coherently combined fiber CPA laser system

An ultrafast fiber chirped-pulse amplification laser system based on a coherent combination of 16 ytterbium-doped rod-type amplifiers is presented. It generates 10 mJ pulse energy at 1 kW average power and 120 fs pulse duration. A partially helium-protected, two-staged chirped-pulse amplification gr...

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Bibliographic Details
Published in:Optics letters 2021-03, Vol.46 (5), p.969-972
Main Authors: Stark, Henning, Buldt, Joachim, Müller, Michael, Klenke, Arno, Limpert, Jens
Format: Article
Language:English
Subjects:
Amplification
Fiber lasers
Pulse duration
Ytterbium
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Summary:An ultrafast fiber chirped-pulse amplification laser system based on a coherent combination of 16 ytterbium-doped rod-type amplifiers is presented. It generates 10 mJ pulse energy at 1 kW average power and 120 fs pulse duration. A partially helium-protected, two-staged chirped-pulse amplification grating compressor is implemented to maintain the close to diffraction-limited beam quality by avoiding nonlinear absorption in air.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.417032