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掺铒铋酸盐玻璃的光谱性质和热稳定性研究

杨建虎 戴世勋 温 磊 柳祝平 胡丽丽 姜中宏

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掺铒铋酸盐玻璃的光谱性质和热稳定性研究

杨建虎, 戴世勋, 温 磊, 柳祝平, 胡丽丽, 姜中宏

Spectroscopic properties and thermal stability of a new erbium-doped bismuth-based glass

Yang Jian-Hu, Dai Shi-Xun, Wen Lei, Liu Zhu-Ping, Hu Li-Li, Jiang Zhong-Hong
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  • 测试了铋酸盐玻璃(85-x)Bi2O3-(10+x)B2O3-5Na2O(x=0,5,10,15,20,25 mol%)中Er3+离子的吸收光谱、荧光光谱、荧光寿命及热稳定性.应用Judd-Ofelt理论计算了铋酸盐玻璃中Er3+离子的强度参数(Ω2=(352—386)×10-20cm2,Ω4=(138—152)×10-20cm2,Ω6=(093—117)×10-20cm2),应用McCumber理论计算了Er3+离子的受激发射截面(σe=(70—95)×10-21cm2)及Er3+离子4I13/2→4I15/2发射谱的荧光半高宽(FWHM=57—79nm),测得了Er3+离子4I13/2能级荧光寿命(τm=265—159ms),分析了玻璃的热稳定性能.研究了Er3+离子各种光谱参数对成分的依赖性,发现随着玻璃中B2O3含量的增加,强度参数Ωt(t=2,4,6)、荧光半高宽(FWHM)、热稳定性均相应增加,而测得的荧光寿命却减小.比较了不同基质玻璃中Er3+离子的光谱特性,结果表明掺铒铋酸盐玻璃更适合于掺Er3+光纤放大器实现宽带和高增益放大.
    The absorption spectra,emission spectra and thermal stability of Er3+-doped (85-x)Bi2O3-(10+x)B2O3-5Na2O(x=0,5,10,15,20,25 mol%)glasses were investigated in this work.The Ωt(t=2,4,6)(Ω2=(352—386)×10-20cm2,Ω4=(138—152)×10-20cm2,Ω6=(093—117)×10-20cm2)parameters were calculated by Judd-Ofelt theory.The stimulated emission cross sections(σe=(70—95)×10-21cm2)of the Er3+ ion 4I13/2→4I15/2 transition were calculated using the McCumber theory.The FWHMs(FWHM=57—79nm) of the 4I13/2→4I15/2 emission and lifetimes of 4I13/2 level(τm=265—159ms)of Er3+ ions were measured.The thermal stability of the glasses were analyzed.The compositional dependence of optical parameters of Er3+ ions were studied,with the increases of B2O3 content in the glass.The parameters Ωt(t=2,4,6),FWHM,and temperature difference of ΔT=Tx-Tg increase monotonically,while the measured lifetime decreases.The optical properties of Er3+ in different glass hosts were compared.The results show that our Er3+-doped bismuth-based glass is much more beneficial for optical amplifier to realize broadband and high gain amplification.
    • 基金项目: 国家自然科学基金(批准号:60207006)资助的课题.
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  • PDF下载量:  1144
  • 被引次数: 0
出版历程
  • 收稿日期:  2002-04-11
  • 修回日期:  2002-06-26
  • 刊出日期:  2003-01-05

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