Holmium-Doped Sodium Zinc Molybdenum Tellurite Glasses

DOI

10.2991/cmfe-15.2015.81How to use a DOI?

Keywords

Judd-Ofelt theory; Holmium; Tellurite; Optical Transitions

Abstract

We propose and demonstrate Sodium Zinc Molybdenum Tellurite glasses (Na2O-ZnO-MoO3-TeO2 or NZMT) as suitable hosts for rare earth ion Holmium (Ho3+) operating at 1.2?m and 1.37?m wavelength. The density, the refractive indices, the optical absorption have been measured. The Judd-Ofelt intensity parameters ?2, ?4, ?6, the radiative rates, the branching ratios, and the fluorescence lifetimes were calculated from Judd–Ofelt theory. Intense 1.2µm (5I6?5I8) and 1.37µm (5S2,5F4?5I5) emissions were observed in these glass systems under 539nm excitation. The bandwidth of the 5I6?5I8 and 5S2,5F4?5I5 transitions are ~60nm and 61nm , respectively. Measured fluorescence lifetimes of the 5I6?5I8 (1.2?m) and 5S2,5F4?5I5 (1.37 ?m) decay at room temperature were 281?s and 43.5?s, respectively, and their quantum efficiencies were approximately 9.3% and 22%. From our data, it appears that Ho3+-doped NZMT glasses are promising materials for waveguide lasers and amplifiers operation at 1.1-1.4?m wavelength range.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jin-bao Chen
AU  - Shi-Qing Man
AU  - Ning Zhang
PY  - 2015/07
DA  - 2015/07
TI  - Holmium-Doped Sodium Zinc Molybdenum Tellurite Glasses
BT  - Proceedings of the International Conference on Chemical, Material and Food Engineering
PB  - Atlantis Press
SP  - 338
EP  - 342
SN  - 2352-5401
UR  - https://doi.org/10.2991/cmfe-15.2015.81
DO  - 10.2991/cmfe-15.2015.81
ID  - Chen2015/07
ER  -