Investigation of 2.1-μm lasing properties of Ho:Tm:Cr:YAG crystals under flash-lamp pumping at various operating conditions
Identifieur interne : 003526 ( Main/Curation ); précédent : 003525; suivant : 003527Investigation of 2.1-μm lasing properties of Ho:Tm:Cr:YAG crystals under flash-lamp pumping at various operating conditions
Auteurs : K. H. Kim [États-Unis] ; Y. S. Choi [États-Unis] ; N. P. Barnes ; R. V. Hess ; C. H. Bair ; P. BrockmanSource :
- Applied optics [ 0003-6935 ] ; 1993.
Descripteurs français
- Pascal (Inist)
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- topic : Chrome.
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- KwdEn :
Abstract
Flash-lamp-pumped normal-mode and Q-switched 2.1-μm laser operations of Ho:Tm:Cr:YAG crystals have been evaluated under a wide variety of experimental conditions in order to determine an optimum lasing condition and to characterize the laser outputs. Q-switched laser-output energies equal to or in some cases more than the normal-mode laser energies were obtained in the form of a strong single spike by optimizing the opening time of a lithium niobate Q switch. The increase of the normal-mode laser slope efficiency was observed with the increase of the Tm concentration from 2.5 to 4.5 at.% at operating temperatures from 120 K to near room temperature. Laser transitions were observed only at 2.098 and 2.091 μm under various conditions
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Pascal:93-0614742Le document en format XML
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<term>Chromium</term>
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<term>Infrared laser</term>
<term>Infrared radiation</term>
<term>Optical pumping</term>
<term>Photoflash lamp</term>
<term>Q switched laser</term>
<term>Solid state laser</term>
<term>Thulium</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Pompage optique</term>
<term>Lampe éclair</term>
<term>Laser solide</term>
<term>Laser IR</term>
<term>Rayonnement IR</term>
<term>Laser déclenché</term>
<term>Chrome</term>
<term>Thulium</term>
<term>Holmium</term>
<term>Aluminium Yttrium Oxyde Mixte</term>
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<front><div type="abstract" xml:lang="en">Flash-lamp-pumped normal-mode and Q-switched 2.1-μm laser operations of Ho:Tm:Cr:YAG crystals have been evaluated under a wide variety of experimental conditions in order to determine an optimum lasing condition and to characterize the laser outputs. Q-switched laser-output energies equal to or in some cases more than the normal-mode laser energies were obtained in the form of a strong single spike by optimizing the opening time of a lithium niobate Q switch. The increase of the normal-mode laser slope efficiency was observed with the increase of the Tm concentration from 2.5 to 4.5 at.% at operating temperatures from 120 K to near room temperature. Laser transitions were observed only at 2.098 and 2.091 μm under various conditions</div>
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