Effect of the introduction of Na2B4O7 on erbium luminescence in tellurite glasses - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Non-Crystalline Solids Année : 2002

Effect of the introduction of Na2B4O7 on erbium luminescence in tellurite glasses

Résumé

Compositional dependence of spontaneous emission of Er3+ was studied in borate telluriteglasses. The improvement of the luminescence at 1533 nm while pumping at 980 nm by introducing sodium tetraborate in a telluriteglass host is discussed in Er3+ doped and Yb3+/Er3+ co-doped glasses. From the absorption, emission spectra and lifetime measurements, an optimized sodium tetraborate molar concentration between 1.25% and 2.5% was shown to induce a maximum intensity of the 1533 nm spontaneous emission in correlation with a more efficient non-radiative transfer from the pump level to the emitting level of Er3+. The introduction of Na2B4O7 shortens the radiative lifetime of the erbium pump level (4I1L/2) as well as decreases the visible luminescence resulting from up conversion effect.

Domaines

Matériaux

Dates et versions

hal-00710010 , version 1 (19-06-2012)

Identifiants

Citer

Laëtitia Petit, Thierry Cardinal, Jean-Jacques Videau, Gilles Le Flem, Yannick Guyot, et al.. Effect of the introduction of Na2B4O7 on erbium luminescence in tellurite glasses. Journal of Non-Crystalline Solids, 2002, 298 (1), pp.76-88. ⟨10.1016/S0022-3093(01)01036-5⟩. ⟨hal-00710010⟩
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