Open AccessYb:YAl_3(BO_3)_4 as gain material in thin-disk oscillators: demonstration of 109 W of IR output power
Author(s) -
Birgit Weichelt,
Martin Rumpel,
Andreas Voß,
Andreas J. Gross,
V. Wesemann,
Daniel Rytz,
Marwan Abdou Ahmed,
Thomas Graf
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.025708
Subject(s) - optics , materials science , multi mode optical fiber , laser , slope efficiency , wavelength , power (physics) , bandwidth (computing) , thin disk , amplified spontaneous emission , optoelectronics , thin film , fiber laser , optical fiber , physics , telecommunications , computer science , nanotechnology , stars , quantum mechanics , astronomy
The first demonstration of an Yb:YAl3(BO3)4 thin-disk laser is reported. An output power of 109 W with an optical efficiency of 50.2% was achieved in multimode CW-operation which is to the best of our knowledge a significant record performance compared to previous reports on CW-lasers with this material. At a lower power level of 19.3 W the material proved its suitability for efficient operation with an optical efficiency of 60.4%. In fundamental-mode operation the extracted output power was 10.4 W with an optical efficiency of 44.5% and a beam propagation factor M(2) = 1.39. The broad emission bandwidth of the material was confirmed by measuring a continuous wavelength tuning range from 1001 to 1053 nm with a maximum output power of 36 W at 1040 nm.