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

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

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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KEYWORDS

Glasses

Luminescence

Absorption

Ions

Oxygen

Dysprosium

Praseodymium

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