Rare-earth-activated fluoride and tellurite glasses: optical and spectroscopic properties

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

doi:10.1117/12.424767

27 April 2001 Rare-earth-activated fluoride and tellurite glasses: optical and spectroscopic properties

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

Author Affiliations +

Proceedings Volume 4282, Rare-Earth-Doped Materials and Devices V; (2001) https://doi.org/10.1117/12.424767
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States

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 ⁴I_13/2 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.

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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, and Maurizio Ferrari "Rare-earth-activated fluoride and tellurite glasses: optical and spectroscopic properties", Proc. SPIE 4282, Rare-Earth-Doped Materials and Devices V, (27 April 2001); https://doi.org/10.1117/12.424767

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