Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 479, Issue 1-2, Pages 883-887Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2009.01.096
Keywords
Erbium glass; Cross-sections; Thermal stability; Radiation trapping; OH-groups
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Funding
- National Natural Science Foundation of China [50572102, 5050213]
- Hebei Provincial Technology Development Foundation [51215103b]
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Er3+-doped germanate-borate glass samples xGeO(2)-(80-x)B2O3-10ZnO-10BaO (x=0-80) have been prepared. Their thermal stability against crystallization and spectroscopic properties were investigated. The obtained data indicated that germanate-borate glass could be used as potential host material for developing optical amplifiers. However, OH-groups, introduced from boric acid, enhanced the radiation trapping effect in glasses samples and resulted in overestimate of the spectral bandwidth of I-4(13/2) level. The mechanism of OH-groups leading to enhancing the radiation trapping was discussed. (c) 2009 Elsevier B.V. All rights reserved.
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