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Proceedings Paper

High-energy multiwatt femtosecond diode-pumped Yb:CaAlGdO4 and Yb:CaF2 regenerative amplifiers
Author(s): E. Caracciolo; M. Kemnitzer; A. Guandalini; F. Pirzio; A. Agnesi; Juerg Aus-der-Au
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Paper Abstract

We study and compare the performance of Yb:CaAlGdO4- and Yb:CaF2-based regenerative amplifiers at low (5 to 10 kHz) and high (up to 500 kHz) repetition rates. Both materials allow for pulse energies of <1 mJ with sub-400-fs at low repetition rates and up to 9.4 W of average output power at 500 kHz.

Thanks to the good thermal properties of Yb:CaF2 and Yb:CALGO, the extracted energy has the potential to be significantly increased with further pump power scaling. Shorter pulses are also potentially achievable by optimizing the design of stretcher and compressor in order to better compensate higher-order dispersion and reduce nonlinear effects.

These laser sources are extremely interesting for industrial applications where high pulse energies at relative high repetition rates allow to considerably reduce the manufacturing throughput time.

Paper Details

Date Published: 20 February 2015
PDF: 7 pages
Proc. SPIE 9342, Solid State Lasers XXIV: Technology and Devices, 93421F (20 February 2015); doi: 10.1117/12.2078715
Show Author Affiliations
E. Caracciolo, Spectra-Physics Rankweil (Austria)
Industriale e dell’Informazione (Italy)
M. Kemnitzer, Spectra-Physics Rankweil (Austria)
A. Guandalini, Spectra-Physics Rankweil (Austria)
F. Pirzio, Industriale e dell’Informazione (Italy)
A. Agnesi, Industriale e dell’Informazione (Italy)
Juerg Aus-der-Au, High Q Laser, a Newport Corp. Brand (Austria)

Published in SPIE Proceedings Vol. 9342:
Solid State Lasers XXIV: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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