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Investigation of infrared emission and lifetime in Tm-doped 75TeO2:20ZnO:5Na2O (mol%) glasses : Effect of Ho and Yb co-doping

Identifieur interne : 001392 ( Main/Exploration ); précédent : 001391; suivant : 001393

Investigation of infrared emission and lifetime in Tm-doped 75TeO2:20ZnO:5Na2O (mol%) glasses : Effect of Ho and Yb co-doping

Auteurs : Daniel Milanese [Italie] ; Monica Vota [Italie] ; QIUPING CHEN [Italie] ; JIANJUN XING [Italie] ; GUIHUA LIAO [Italie] ; Hrvoje Gebavi [Italie] ; Monica Ferraris [Italie] ; Nicola Coluccelli [Italie] ; Stefano Taccheo [Italie]

Source :

RBID : Pascal:08-0230908

Descripteurs français

English descriptors

Abstract

In this paper we describe fabrication and characterization of rare-earth-doped active tellurite glasses to be used as active laser media for fiber lasers emitting in the 2 μm region. The base composition is (mol%): 75TeO2-20ZnO-5Na2O with different concentrations of Tm3+, Yb3+ and Ho3+ as dopants or co-dopants. Optical properties of doped glasses were studied and pumping at 800 nm and at 980 nm were tested in order to compare the efficiency of two pumping mechanisms. Optical characterization carried out on glasses containing only Tm3+ ions indicated the optimum concentration of Tm2O3 in terms of emission efficiency as 1 wt%. The addition of 5 wt% of Yb2O3 to Tm3+-doped glasses led to the best results in terms of intensity of fluorescence emission and of lifetime values. Yb and Ho co-doped Tm-tellurite glass was measured in emission.


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Le document en format XML

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<title xml:lang="en" level="a">Investigation of infrared emission and lifetime in Tm-doped 75TeO
<sub>2</sub>
:20ZnO:5Na
<sub>2</sub>
O (mol%) glasses : Effect of Ho and Yb co-doping</title>
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<term>Codoping</term>
<term>Doping</term>
<term>Fluorescence</term>
<term>Glass</term>
<term>Impurity density</term>
<term>Lifetime</term>
<term>Photoluminescence</term>
<term>Sodium oxide</term>
<term>Tellurites</term>
<term>Ternary systems</term>
<term>Thulium additions</term>
<term>Time resolved spectra</term>
<term>Zinc oxide</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Durée vie</term>
<term>Addition thulium</term>
<term>Codopage</term>
<term>Dopage</term>
<term>Concentration impureté</term>
<term>Fluorescence</term>
<term>Photoluminescence</term>
<term>Spectre résolution temporelle</term>
<term>Verre</term>
<term>Oxyde de zinc</term>
<term>Tellurite</term>
<term>Oxyde de sodium</term>
<term>Système ternaire</term>
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<front>
<div type="abstract" xml:lang="en">In this paper we describe fabrication and characterization of rare-earth-doped active tellurite glasses to be used as active laser media for fiber lasers emitting in the 2 μm region. The base composition is (mol%): 75TeO
<sub>2</sub>
-20ZnO-5Na
<sub>2</sub>
O with different concentrations of Tm
<sup>3+</sup>
, Yb
<sup>3+</sup>
and Ho
<sup>3+</sup>
as dopants or co-dopants. Optical properties of doped glasses were studied and pumping at 800 nm and at 980 nm were tested in order to compare the efficiency of two pumping mechanisms. Optical characterization carried out on glasses containing only Tm
<sup>3+</sup>
ions indicated the optimum concentration of Tm
<sub>2</sub>
O
<sub>3</sub>
in terms of emission efficiency as 1 wt%. The addition of 5 wt% of Yb
<sub>2</sub>
O
<sub>3</sub>
to Tm
<sup>3+</sup>
-doped glasses led to the best results in terms of intensity of fluorescence emission and of lifetime values. Yb and Ho co-doped Tm-tellurite glass was measured in emission.</div>
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Data generation: Thu May 12 08:27:09 2016. Site generation: Thu Mar 7 22:33:44 2024