Er3+/Yb3+Codoped Tungsten-tellurite Glasses:the Thermal Stability and Spectral Properties at 1.5 μm Band

SHEN Xiang; NIE Qiu-hua; XU Tie-feng; DAI Shi-xun; WANG Xun-si

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Er³⁺/Yb³⁺Codoped Tungsten-tellurite Glasses:the Thermal Stability and Spectral Properties at 1.5 μm Band

更新时间：2020-08-11

- Er³⁺/Yb³⁺Codoped Tungsten-tellurite Glasses:the Thermal Stability and Spectral Properties at 1.5 μm Band
- Chinese Journal of Luminescence Vol. 27, Issue 1, Pages: 36-40(2006)
- 作者机构：
  
  宁波大学, 信息科学与工程学院, 浙江, 宁波, 315211
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ171;O482.31
- Received：24 August 2004，
  
  Revised：15 November 2004，
  
  Published：20 January 2006
- 稿件说明：
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沈祥, 聂秋华, 徐铁峰, 戴世勋, 王训四. Er3+/Yb3+共掺碲钨酸盐玻璃的热稳定性和1.5μm波段的光谱性质[J]. 发光学报, 2006,27(1): 36-40

SHEN Xiang, NIE Qiu-hua, XU Tie-feng, DAI Shi-xun, WANG Xun-si. Er3+/Yb3+Codoped Tungsten-tellurite Glasses:the Thermal Stability and Spectral Properties at 1.5 μm Band[J]. Chinese Journal of Luminescence, 2006,27(1): 36-40
沈祥, 聂秋华, 徐铁峰, 戴世勋, 王训四. Er3+/Yb3+共掺碲钨酸盐玻璃的热稳定性和1.5μm波段的光谱性质[J]. 发光学报, 2006,27(1): 36-40 DOI：

SHEN Xiang, NIE Qiu-hua, XU Tie-feng, DAI Shi-xun, WANG Xun-si. Er3+/Yb3+Codoped Tungsten-tellurite Glasses:the Thermal Stability and Spectral Properties at 1.5 μm Band[J]. Chinese Journal of Luminescence, 2006,27(1): 36-40 DOI：

摘要

制备了Er

/Yb

共掺的碲钨酸盐玻璃样品

TeO

-WO

-R

=PbO

BaO

)

研究了样品的热稳定性和1.5μm波段的光谱性质。碲酸盐中引入WO

的目的是为提高基质的声子能量

使Er

离子

13/2

→

15/2

的多声子弛豫速率增加

从而提高

13/2

能级上的Er

离子数

这对提高1.5μm处的荧光强度有利

另外加入WO

也能提高碲酸盐玻璃的抗析晶能力。测试了样品的FT-IR光谱

发现碲钨酸盐玻璃样品中存在着TeO

、TeO

、WO

和WO

结构体。周围环境的不对称性导致Er

在1.5μm处的光谱有非均匀的展宽和大的受激发射截面。Er

在70TeO

-20WO

-10Bi

玻璃中

13/2

→

15/2

能级发射的荧光半峰全宽(FWHM)为77nm

应用McCumber理论计算的受激发射截面(σ

peak

)为1.03×10

-20

。其FWHM×σ

peak

乘积远大于掺Er

的铋酸盐、磷酸盐、碲酸盐和硅酸盐玻璃

说明碲钨酸盐玻璃是一种制备宽带光纤放大器优良基质材料。

Abstract

/Yb

codoped tungsten-tellurite (WT) glasses

TeO

-WO

-R

=PbO

BaO

)

were prepared and investigated. WO

has been introduced in the tellurite glasses due to the following two reasons: The first one is to increase the phonon energy and the!multi-phonon relaxation rate of the Er

11/2

→

13/2

transition

which benefits the population inversion between the

13/2

and

15/2

level of Er

.The second is to enhance the thermal stability against crystallization. The structural studies were done through FT-IR spectral analysis and revealed that these glasses contain TeO

TeO

and WO

units as the local structures. The asymmetry of Er

sites results in inhomogeneous broadening of spectra and large emission cross-section at 1.5 μm band. The fluorescence full width at half maximum FWHM=77 nm

and the peak of the emission cross-section σ

peak

=1.03×10

-20

are manifested in 70TeO

-20WO

-10Bi

glass. The gain bandwidth properties

FWHM×σ

peak

of Er

in WT glasses have advantages over those of bismuthate

phosphate

tellurite and silicate glasses

indicating the WT glasses are promising host materials for 1.5 μm broadband amplification.

关键词

Keywords

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