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Proceedings Paper

Rare-earth-activated fluoride and tellurite glasses: optical and spectroscopic properties
Author(s): Raffaella Rolli; Alessandro Chiasera; Maurizio Montagna; Enrico Moser; Sabina Ronchin; Stefano Pelli; Giancarlo C. Righini; Animesh Jha; Victor K. Tikhomirov; Svetlana A. Tikhomirova; Claire Duverger; Pietro Galinetto; Maurizio Ferrari
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Paper Abstract

In this work we report on spectroscopic properties of Er3+-doped aluminum fluorophosphate glasses of molar composition 29.8AlF3:3.5 MgF2: 19.8 CaF2: 10.9 SrF2: 12.8 BaF2: 8.4 YF3:9.8 ZrF4:4 NaPO3:1 ErF3 and 30 AlF3:3.5 MgF2:20 CaF2: 11 SrF2: 13 BaF2: 8.4 YF3: 10 ZrF4: 4 NaPO3: 0.1 ErF3, and Er3+-doped tellurite glasses of molar composition 75 TeO2: 12 ZnO: 10 Na2O: 2 PbO: 1 Er2O3 and 75 TeO2: 12 ZnO: 10 Na2O: 2 GeO2: 1 Er2O3. Absorption and Stokes luminescence upon visible excitation were measured. Emission in the third telecom window was observed upon excitation at 514.5 nm and the lifetime of the 4I13/2 level was measured. IR-to-visible up conversion emission under continuous-wave laser excitation at 976 nm was observed. The up conversion results in a strong green emission and a weaker red emission, whose intensity shows a quadratic dependence on the excitation power, indicating that two photons are involved in the process. Lifetime measurements were performed in order to study the dynamical behavior of the up conversion emission and to clarify the contributions of excited state absorption and energy transfer to the up conversion process.

Paper Details

Date Published: 27 April 2001
PDF: 14 pages
Proc. SPIE 4282, Rare-Earth-Doped Materials and Devices V, (27 April 2001); doi: 10.1117/12.424767
Show Author Affiliations
Raffaella Rolli, Univ. degli Studi di Trento (Italy)
Alessandro Chiasera, Univ. degli Studi di Trento (Italy)
Maurizio Montagna, Univ. degli Studi di Trento (Italy)
Enrico Moser, Univ. degli Studi di Trento (Italy)
Sabina Ronchin, Univ. degli Studi di Trento (Italy)
Stefano Pelli, Istituto di Ricerca sulle Onde Elettromagnetiche (Italy)
Giancarlo C. Righini, Istituto di Ricerca sulle Onde Elettromagnetiche (Italy)
Animesh Jha, Univ. of Leeds (United Kingdom)
Victor K. Tikhomirov, Univ. of Nottingham (United Kingdom)
Svetlana A. Tikhomirova, Univ. of Nottingham (United Kingdom)
Claire Duverger, Univ. du Maine (France)
Pietro Galinetto, Univ. degli Studi di Pavia (Italy)
Maurizio Ferrari, Ctr. di Fisica degli Stati Aggregati (Italy)


Published in SPIE Proceedings Vol. 4282:
Rare-Earth-Doped Materials and Devices V
Shibin Jiang, Editor(s)

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