Spectroscopy, modelling and laser operation of holmium doped laser crystals
Identifieur interne : 003372 ( Main/Merge ); précédent : 003371; suivant : 003373Spectroscopy, modelling and laser operation of holmium doped laser crystals
Auteurs : Y. Kalisky ; S. Rotman ; G. Boulon ; C. Pedrini ; A. BrenierSource :
Abstract
Spectroscopic studies using laser induced fluorescence and numerical modelling of energy transfer and back transfer mechanism are reported in Er:Tm:Ho:YLF, Cr:Tm:Ho:YAG and Cr:Tm:YAG laser crystals at various temperatures (10 K-300 K). Direct energy transfer from Tm3+ excited states to Ho3+ 5I7 emitting level was observed and analyzed both in YAG and YLF. Further analysis of Cr3+ and Tm3+ time dependent emission curves indicate strong correlation of chromium-thulium pairs. Pulsed operation of holmium laser at high temperature will be presented.
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DOI: 10.1051/jp4:19944138
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<author><name sortKey="Rotman, S" sort="Rotman, S" uniqKey="Rotman S" first="S." last="Rotman">S. Rotman</name>
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<author><name sortKey="Boulon, G" sort="Boulon, G" uniqKey="Boulon G" first="G." last="Boulon">G. Boulon</name>
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<author><name sortKey="Pedrini, C" sort="Pedrini, C" uniqKey="Pedrini C" first="C." last="Pedrini">C. Pedrini</name>
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<front><div type="abstract" xml:lang="en">Spectroscopic studies using laser induced fluorescence and numerical modelling of energy transfer and back transfer mechanism are reported in Er:Tm:Ho:YLF, Cr:Tm:Ho:YAG and Cr:Tm:YAG laser crystals at various temperatures (10 K-300 K). Direct energy transfer from Tm3+ excited states to Ho3+ 5I7 emitting level was observed and analyzed both in YAG and YLF. Further analysis of Cr3+ and Tm3+ time dependent emission curves indicate strong correlation of chromium-thulium pairs. Pulsed operation of holmium laser at high temperature will be presented.</div>
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