J. Phys. IV France 01 (1991) C7-319-C7-322
SPECTROSCOPIC PROPERTIES AND OPERATION OF PULSED HOLMIUM LASERY. KALISKY1, J. KAGAN1, A. BRENIER2, C. PEDRINI2 and G. BOULON2
1 Laser Department, Nuclear Research Centre-Negev, P.O. Box 9001, Beer-Sheva IL-84190, Israel
2 Laboratoire de Physico-Chimie des Matériaux Luminescents, URA 442-CNRS, Université Lyon I, 43 boulevard du 11 novembre 1918, F-69622 Villeurbanne cedex, France
Absorption spectra measurements and detailed analysis of Er:Tm:Ho:YLF absorption lines at 4 K were carried out. Laser induced fluorescence was utilized to study energy transfer dynamics of three different laser crystals namely, CrTmHo in YAG, TmHo : YAG as well as TmHo : YLF. Pulsed, free running laser performance of a freon-cooled Er:Tm:Ho:YLF laser at -10°C and -50°C at different current densities with maximum laser energies of 1.5 J/pulse and 2.25 J/pulse, respectively were obtained.
© EDP Sciences 1991