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Proceedings Paper

22GW peak power femtosecond fiber CPA system
Author(s): Arno Klenke; Steffen Hädrich; Tino Eidam; Jan Rothhardt; Marco Kienel; Armin Hoffmann; Stefan Demmler; Thomas Gottschall; Jens Limpert; Andreas Tünnermann
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Paper Abstract

Over the last decade, the performance of femtosecond fiber laser systems has been rapidly improved. However, further improvements might be held back due to different physical limitations such as nonlinearities or optically induced damage. We demonstrate that with the coherent combination of four parallel fiber amplifiers record pulse energies and peak-powers of 5.7 mJ and 22 GW, respectively, could be achieved. These values could be realized with a chirped-pulse-amplification (CPA) laser system running at a repetition rate of 40 kHz and delivering a compressed average power of 230 W. A high combination efficiency of 89% was achieved demonstrating the scalability of the combining approach to a larger number of channels.

Paper Details

Date Published: 4 March 2015
PDF: 6 pages
Proc. SPIE 9344, Fiber Lasers XII: Technology, Systems, and Applications, 93441A (4 March 2015); doi: 10.1117/12.2079193
Show Author Affiliations
Arno Klenke, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz-Institute Jena (Germany)
Steffen Hädrich, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz Institute Jena (Germany)
Tino Eidam, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz-Institute Jena (Germany)
Jan Rothhardt, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz-Institute Jena (Germany)
Marco Kienel, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz-Institute Jena (Germany)
Armin Hoffmann, Friedrich-Schiller-Univ. Jena (Germany)
Stefan Demmler, Friedrich-Schiller-Univ. Jena (Germany)
Thomas Gottschall, Friedrich-Schiller-Univ. Jena (Germany)
Jens Limpert, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz-Institute Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Andreas Tünnermann, Friedrich-Schiller-Univ. Jena (Germany)
Helmholtz-Institute Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)


Published in SPIE Proceedings Vol. 9344:
Fiber Lasers XII: Technology, Systems, and Applications
L. Brandon Shaw, Editor(s)

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