Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (1): 70-74.

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Thermal Stability and Spectroscopic Property of theEr3+-Doped Tellurite Glass Containing Nb2 O5

Chen Dong-dan  Liu Yue-hui  Deng Zai-de  Jiang Zhong-hong   

  1. 1.Institute of Optical Communication Materials,South China Univ.of Tech ,Guangzhou 510640,Guangdong.China;2.Shan ghai Institute of Optics and Fine Mechanics,the Chinese Academy of Science,Shanghai 201800, China
  • Received:2004-04-02 Online:2005-01-25 Published:2005-01-25
  • Contact: 陈东丹(1976-)，女，助教，主要从事掺稀土特种玻璃和光纤方面的研究 E-mail:dongdanchen@163.com
  • About author:陈东丹(1976-)，女，助教，主要从事掺稀土特种玻璃和光纤方面的研究
  • Supported by:

    广东省自然科学基金资助项目(04020036)；广东省科技计划项目(2004A10602002)

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Abstract:

Nb2 O5was doped into the Er“ -doped tellurite glass to improve its thermal stability. The absorption spectra.fluorescence spectra and therm al stability parameters of the four types of Er3+-doped tellurite glass were in.vestigated.The Judd-Ofelt intension parametersΩt ( Ω2=(5.99~10.38)×10 -20cm ,Ω4= (1.91~2.67)×10-20cm2 ,Ω6=(0.92~1.28)×10-20cm2 )were then calculated by means of Judd.Ofelt theory.Moreover,the stimulated emission cross section was calculated by McCumber theory ,and the effects of diferent compositions on the spectroscopic property and therm al stability of the glass were compared.The results show that the Er3 .doped 0.70TeO2-0.15ZnO-0.05BaO-0.10Nb2 O5 glass is of excellent therm al stability, exhibits a large stimulated emission cross section(10.96 X 10-20cm2  )and a broad full width at the half maximum(67 nm),and is a suitab le type medium glass for the broadband Er3+-doped fiber amplifier

Key words: Er3+-doped tellurite glass, therm al stabilities, spectroscopy property