Spectroluminescent properties of ytterbium-activated fluorophosphate glasses

Bogdanov, O.A., Kolobkova, E.V., Rokhmin, A.S.

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Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Богданов О.А., Колобкова Е.В., Рохмин А.С. Спектрально-люминесцентные свойства фторфосфатных стёкол, активированных иттербием // Оптический журнал. 2019. Т. 86. № 4. С. 63–68. http://doi.org/10.17586/1023-5086-2019-86-04-63-68

Bogdanov O.A., Kolobkova E.V., Rokhmin A.S. Spectroluminescent properties of ytterbium-activated fluorophosphate glasses [in Russian] // Opticheskii Zhurnal. 2019. V. 86. № 4. P. 63–68. http://doi.org/10.17586/1023-5086-2019-86-04-63-68

For citation (Journal of Optical Technology):

O. A. Bogdanov, E. V. Kolobkova, and A. S. Rokhmin, "Spectroluminescent properties of ytterbium-activated fluorophosphate glasses," Journal of Optical Technology. 86(4), 246-250 (2019). https://doi.org/10.1364/JOT.86.000246

Abstract:

In this work, we studied the effect of the concentration of ytterbium ions on the spectroluminescent properties and laser parameters of fluorophosphate glasses of the Ba(PO₃)₂–MgCaSrBaAl₂F₁₄ system. It was shown that the absorption peak corresponds to λ_p=974 nm, and the stimulated emission peak is located at λ₀=1002 nm. It was established that the position of these peaks does not change with an increase in the ytterbium content. The highest values of the stimulated emission cross-section σ_emi=0.562×10⁻²⁰ cm² and the luminescence lifetime τ_exp=2.1 ms correspond to the YbF₃ concentration of 0.5 mol. %. The quantum yield Q for the YbF₃ concentration of 0.5 mol. % is 91.6%. The presented glasses have a long luminescence lifetime, and the calculations show the possibility of obtaining large values of gain G.

Keywords:

fluorophosphate glasses, ytterbium, laser parameters, stimulated emission cross-section, full width at half-maximum of luminescence band

OCIS codes: 140.3380

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