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Proceedings Paper

Comparative performance of passively Q-switched diode-pumped Yb:GGG, Yb:YAG, and Yb-doped tungstates lasers using Cr4+ -doped garnets
Author(s): Y. Kalisky; O. Kalisky; U. Rachum; G. Boulon; A. Brenier
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Paper Abstract

We investigated the CW free-running and repetitive modulation in the kHz frequency domain of a passively Q-switched, diode-pumped Yb:YAG, Yb:GGG and Yb:KYW lasers, by using Cr4+:YAG as a saturable absorber. The results presented here are focused towards the design of a passively Q-switched Yb doped garnets or Yb doped tungstates microlaser. The free-running performance of Yb:YAG, Yb:GGG, Yb:KGW and Yb:KYW were characterized, and experimental parameters such as gain and loss were evaluated. We carried out a fit between our experimental results and an existing numerical model, which relates the experimental and the physical parameters of the ytterbium diode-pumped system to the minimal threshold pumping power. The best performance among the laser crystals was obtained for Yb:YAG laser. A maximum peak power of ≈4.5-kW, at an average output power of 1.32-W, were extracted with of ≈25 % extraction efficiency.

Paper Details

Date Published: 28 February 2006
PDF: 9 pages
Proc. SPIE 6100, Solid State Lasers XV: Technology and Devices, 61001K (28 February 2006); doi: 10.1117/12.643882
Show Author Affiliations
Y. Kalisky, Nuclear Research Ctr. Negev (Israel)
O. Kalisky, Jerusalem College of Technology (Israel)
U. Rachum, Ben Gurion Univ. of the Negev (Israel)
G. Boulon, Univ. Claude Bernard Lyon I, CNRS (France)
A. Brenier, Univ. Claude Bernard Lyon I, CNRS (France)

Published in SPIE Proceedings Vol. 6100:
Solid State Lasers XV: Technology and Devices
Hanna J. Hoffman; Ramesh K. Shori, Editor(s)

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