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Actively Q-switched, diode pumped thulium laser by J.K. Jabczynski; W. Zendzian; J. Kwiatkowski; H. Jelínková; J. Šulc; M. Němec is a Physics and Astronomy article available to read on EtoBox.

What is Actively Q-switched, diode pumped thulium laser about?

6 W of output power and near 50% slope efficiency with respect to absorbed pump power was demonstrated in free-running mode for a short, 40-mm long resonator. The uncoated, with 3.5% dopant of thulium YLF rod of ⌀ 3 × 8 mm size wrapped with indium foil was mounted in copper heat-sink maintaining 293 K temperature of coolant water and inserted in a short, 40-mm long resonator. For pumping the fiber coupled (0.4 mm core diameter) laser diode bar at 792-nm wavelength was deployed. The fused silica acousto-optic modulator with above 80% diffraction efficiency for 25-W power of RF was taken as the Q-switch for such a laser. In the best case of Q-switching mode up to 2-mJ output energy with 20-ns pulse duration corresponding to 100-kW peak power was demonstrated for rep. rate of a few Hz. Emission wavelength was around 1904 nm for both free-running and Q-switching regimes.

Who reads Actively Q-switched, diode pumped thulium laser?

Author

J.K. Jabczynski; W. Zendzian; J. Kwiatkowski; H. Jelínková; J. Šulc; M. Němec

Publisher

John Wiley and Sons; IOP Publishing; Institute of Physics Publishing (IOP); Astro, Ltd. (ISSN 1612-2011)

Published

2007

Language

EN

Field

Physics and Astronomy (Physical Sciences)