Spectroscopic properties of Er3+/Yb3+ co-doped fluorophosphate glasses for optical device applications

K. Linganna; G.L. Agawane; Jung-Hwan In; June Park; Ju-H. Choi

doi:10.1117/12.2320420

4 September 2018 Spectroscopic properties of Er³⁺/Yb³⁺ co-doped fluorophosphate glasses for optical device applications

K. Linganna, G.L. Agawane, Jung-Hwan In, June Park, Ju-H. Choi

Proceedings Volume 10755, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XII; 1075503 (2018) https://doi.org/10.1117/12.2320420
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

A series of Er³⁺/Yb³⁺ co-doped fluorophosphate glasses with varying YbF₃ concentration were prepared by a high temperature melt quenching technique. The effect of sensitization on various spectroscopic properties of Er³⁺-doped fluorophosphate glasses was investigated. Using the Judd-Ofelt theory, the intensity parameters (Ω_λ, λ = 2, 4 and 6) were evaluated from the absorption spectra of glasses. Absorption and emission cross-sections were determined by using the McCumber theory. The dependence of Er³⁺ ions near infrared emission (1.54 μm) on the Yb³⁺ concentration was investigated. The upconversion studies were also carried out at room temperature and low temperatures. The wider bandwidth (78 nm), larger emission cross-section (9.86 x 10^-21 cm²) and longer fluorescence lifetime (12.37 ms) were noticed for the ⁴I_13/2 → ⁴I_15/2 transition of ABS3Er4Yb glass. The temperature sensing behavior of the ABS3Er5Yb glass was studied by using the fluorescence intensity ratio technique in the temperature range from 100 K to 280 K. The sensitivity and temperature of the maximum sensitivity were found to be of the order of 15 x 10⁻⁴ K⁻¹ and 271 K, respectively. The results suggested that the present glass composition has possibilities for optical applications.

Conference Presentation

Citation Download Citation

K. Linganna, G.L. Agawane, Jung-Hwan In, June Park, and Ju-H. Choi "Spectroscopic properties of Er³⁺/Yb³⁺ co-doped fluorophosphate glasses for optical device applications", Proc. SPIE 10755, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XII, 1075503 (4 September 2018); https://doi.org/10.1117/12.2320420

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