Cooperative upconversion in a new high Er-doped tellurite glass

被引：15

作者：

Hu, YD ^{[1
]}

Jiang, SB ^{[1
]}

Sorbello, G ^{[1
]}

Luo, T ^{[1
]}

Ding, Y ^{[1
]}

Hwang, BC ^{[1
]}

Kim, JH ^{[1
]}

Seo, HJ ^{[1
]}

Peyghambarian, N ^{[1
]}

机构：

[1] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA

来源：

RARE-EARTH-DOPED MATERIALS AND DEVICES V | 2001年 / 4282卷

关键词：

D O I：

10.1117/12.424760

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A model for population dynamics of Er3+ in tellurite glasses with high erbium concentrations is proposed. Luminescence decay curves from transitions of I-4(13/2)--> I-4(15/2) and S-4(3/2)--> I-4(15/2) were measured experimentally. Cooperative upconversion coefficients were obtained by numerically solving the rate equations of the model to fit the population dynamics of the I-4(13/2) and S-4(3/2) levels. The cooperative upconversion coefficient for I-4(13/2)+I-4(13/2)--> I-4(9/2)+I-4(15/2) is found to be 2.74x10(-18) cm(3)/s and for I-4(11/2)+I-4(11/2) --> I-4(15/2)+F-2(7/2) is 1.09 x10(-18) cm(3)/s. The model provides a good basis for explaining the experiment data as it shows a high sensitivity to the input fitting parameters. This model can be used to analyze spectroscopic properties of Er3+ ions in glass hosts where various energy levels of Er3+ and transitions between them cannot be neglected.

引用

页码：57 / 74

页数：18

共 27 条

[1]

ARMITAGE JR, 1989, CLEO 89 OPT SOC AM, V11, P180

[2] Excited-state absorption of Er3+-doped LiNbO3 [J].