Absorption and emission spectra of Ga1.7Ge25As8.3S65 glasses doped with rare-earth ions

E. V. Lupan; O. V. Iaseniuc; V. I. Ciornea; M. S. Iovu

doi:10.1117/12.2243163

14 December 2016 Absorption and emission spectra of Ga_1.7Ge₂₅As_8.3S₆₅ glasses doped with rare-earth ions

E. V. Lupan, O. V. Iaseniuc, V. I. Ciornea, M. S. Iovu

Proceedings Volume 10010, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VIII; 100100P (2016) https://doi.org/10.1117/12.2243163
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies 2016, 2016, Constanta, Romania

Abstract

Excellent optical properties of chalcogenide glasses make them interesting for optoelectronic devices in the visible (VIS) and, especially, in the near- and mid-infrared (NIR and MIR) spectral regions. The rare-earth (RE³⁺) doped Ga₁₇Ge₂₅As_8.3S₆₅ glasses were prepared in evacuated (~10⁻⁵ Pa) silica-glass ampoules which were heated up to 1000 °C at 2–4°C min^-1, and then the melt was quenched. The absorption and photoluminescence spectra in the visible and near IR regions for GA_1.7Ge₂₅As_8.3S₆₅ doped with rare-earth RE⁺) ions (Sm³⁺, Nd³⁺, Pr³⁺, Dy³⁺ and co-doped with Ho³⁺+Dy³⁺) are investigated. The energy transfer of the absorbed light in the broad band Urbach region of the host glass to the RE³⁺ ions is suggested for increasing the emission efficiency. The investigated Ga₁₇Ge₂₅As_8.3S₆₅ glasses doped with RE³⁺ ions are promising materials for optical amplifiers operating at 1300 and 1500 nm telecommunication windows.

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E. V. Lupan, O. V. Iaseniuc, V. I. Ciornea, and M. S. Iovu "Absorption and emission spectra of Ga_1.7Ge₂₅As_8.3S₆₅ glasses doped with rare-earth ions", Proc. SPIE 10010, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VIII, 100100P (14 December 2016); https://doi.org/10.1117/12.2243163

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