Spectroscopic properties and energy transfer of Tm3+/Ho3+-codoped TeO2-WO3-ZnO glasses for 1.47 μm amplifier

被引：10

作者：

Chen, Ganxin ^{[1
,2
]}

Zhang, Qinyuan ^{[1
,2
]}

Cheng, Yun

Zhao, Chun ^{[1
,2
]}

Qian, Qi ^{[1
,2
]}

Yang, Zhongmin ^{[1
,2
]}

Jiang, Zhonghong ^{[1
,2
]}

机构：

[1] S China Univ Technol, MOE Key Lab Specially Funct Mat, Guangzhou 510640, Peoples R China

[2] S China Univ Technol, Inst Opt Commun Mat, Guangzhou 510640, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2009年 / 72卷 / 04期

关键词：

Tm3+; Amplifier; Tungsten tellurite glass; TM3+-DOPED TELLURITE GLASSES; TM3+ IONS; INTENSITIES; PROBABILITIES; TRANSITIONS; SPECTRA;

D O I：

10.1016/j.saa.2008.11.014

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

We report on spectroscopic properties and energy transfer of Tm3+/Ho3+-codoped tungsten tellurite glasses for 1.47 mu m amplifier. Fluorescence spectra and the analysis of energy transfer indicate that Ho3+ is an excellent codopant for 1.47 mu m emission. Comparing with other tellurite glasses, the radiative lifetime of the H-3(4) level of Tm3+ in tungsten tellurite glass is slightly lower, but the spontaneous emission probability, stimulated emission cross-section and the figure of merit for bandwidth are obviously larger. Although the pump efficiency of tungsten tellurite amplifier is similar to 50% less than that of fluoride glass, the figure of merit for bandwidth is approximately three times larger in tungsten tellurite glass than in fluoride glass. The results indicate that Tm3+/Ho3+-codoped tungsten tellurite glass is attractive for broadband amplifier. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：734 / 737

页数：4

共 29 条

[1] Optical spectroscopy of Tm3+ ions in GeO2-PbO-Nb2O5 glasses [J].