Absorption and photoluminescence of Ga-La-S:O and Ga-Ge-As-S glasses doped with rare-earth ions

M. S. Iovu; A. M. Andries; N. N. Syrbu; A. B. Seddon; D. Furniss; G. J. Adriaenssens; Yu. S. Tver'yanovich

doi:10.1117/12.741858

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31 May 2007 Absorption and photoluminescence of Ga-La-S:O and Ga-Ge-As-S glasses doped with rare-earth ions

M. S. Iovu, A. M. Andries, N. N. Syrbu, A. B. Seddon, D. Furniss, G. J. Adriaenssens, Yu. S. Tver'yanovich

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Proceedings Volume 6635, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies III; 663505 (2007) https://doi.org/10.1117/12.741858
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies III, 2006, Bucharest, Romania

Abstract

The visible luminescence from Pr³⁺, Dy³⁺, Nd³⁺, Sm³⁺ and co-doped with Ho³⁺ and Dy³⁺ ions embedded in Ga_0.017Ge_0.25As_0.083S_0.65 glass hosts at room temperature and at T10 K is reported, when pumping with an Ar⁺-ion laser at lambda=488 nm. Fluorescence emissions at 1 .3 &mgr; was observed for Dy³⁺ and both at 1.3 and at 1.5 &mgr; for Pr³⁺ doped glasses with wavelength pumping at 950 nm. The emission bands correlate with the absorption bands characteristic for the electronic transitions of the rare-earth ions. Energy transfer from Ho³⁺: ⁵F₃ level to Dy³⁺:⁴F_9/2 level increase the visible emission efficiency at 650 nm in the co-doped glasses. The emission spectra correlate with the absorption spectra of the investigated glasses. The investigated Ga_0.017Ge_0.25As_0.083S_0.65 glasses doped with Pr³⁺ are promising materials for optical fibers amplifiers operating at 1300 and 1500 nm telecommunication windows. The effect of oxygen on the absorption and luminescence spectra of Pr³⁺-doped Ga-La-S-O (GLS) glasses with a constant cationic ratio Ga/La=O.7/O.3 and varying both oxygen (0.65 and 2.95 wt %) and praseodymium (0. 1 and 1 .0 wt %) content also are presented.

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M. S. Iovu, A. M. Andries, N. N. Syrbu, A. B. Seddon, D. Furniss, G. J. Adriaenssens, and Yu. S. Tver'yanovich "Absorption and photoluminescence of Ga-La-S:O and Ga-Ge-As-S glasses doped with rare-earth ions", Proc. SPIE 6635, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies III, 663505 (31 May 2007); https://doi.org/10.1117/12.741858

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