Open AccessSpectroscopic properties of Er3+-doped alkaline/alkaline-earth metal modified fluorophosphate glasses
Author(s) -
Tao Li,
Qinyuan Zhang,
Zhouming Feng,
Zhao Chun,
Zhonghong Jiang
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.4926
Subject(s) - alkaline earth metal , materials science , doping , inorganic chemistry , metal , chemistry , metallurgy , optoelectronics
This paper reports the spectroscopic properties of Er-doped Al(PO )3-based fluorophosphate glasses for 1.5μm optical ampl ifiers. Effects of alkaline/alkaline-earth metal composition on the spectroscopi c properties of Er in fluorophosphate glasses are investigated. A strong correlation between the alkaline/alkaline-earth metal content and the s pectroscopic parameters, such as absorption and emission cross sections, Judd-Of elt intensity parameters and upconversion emission intensity, has been observed. The fluorophosphate glass with 12 mol% potassium fluoride exhibits the largest calculated stimulated-emission cross-section of 7.83×10-21cm and the smallest upconversion emission intensity among the fluorophosphate studied. The fluorophosphate glass with 23 mol% strontium fluoride has a broadb and near-infrared emission at 1.5μm with a full width at half-maximum over 65nm and a long upper level fluorescence lifetime of 8.6ms.