| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1496356 | Optical Materials | 2009 | 5 Pages |
Abstract
Emission properties of Ho3+ at 2.0 μm and the energy transfer mechanism between Yb3+, Er3+ and Ho3+ ions in fluorophosphate glasses are investigated. The measured emission spectra show that the 5I7 → 5I8 transition of Ho3+ upon 980 nm laser diode excitation is strong. Judd–Ofelt intensity parameters (Ωλ, λ = 2, 4, 6), spontaneous transition probability (Arad), radiative lifetime (τr), absorption cross section (σa), stimulated emission cross section (σe) and FWHM × σepeak for the transition of Ho3+: 5I7 → 5I8 are calculated and discussed. The obtained results show that the present Yb3+/Er3+/Ho3+ triply-doped fluorophosphate glass can be identified to be a promising material at 2.0 μm emission.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
L.X. Yi, M. Wang, S.Y. Feng, Y.K. Chen, G.N. Wang, L.L. Hu, J.J. Zhang,