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Mixed former effect on thermal stability and spectroscopic properties of Er3+-doped tellurite glasses

Chen Dong-Dan Zhang Qin-Yuan Jiang Zhong-Hong

Mixed former effect on thermal stability and spectroscopic properties of Er3+-doped tellurite glasses

Chen Dong-Dan, Zhang Qin-Yuan, Jiang Zhong-Hong
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  • Received Date:  05 November 2009
  • Accepted Date:  01 December 2009
  • Published Online:  15 August 2010

Mixed former effect on thermal stability and spectroscopic properties of Er3+-doped tellurite glasses

  • 1. Key laboratory of specially functional materials,Ministry of Education,Institute of optical communication materials,South China University of technology,Guangzhou 510640,China

Abstract: The influence of mixed former effect on the thermal stability,1.53 μm emission and the infrared to visible upconversion emission of the Er3+-doped tellurite glasses are investigated.The inhomogeneous broadening of emission spectrum of Er3+ ion with several network formers (WO3,Nb2O5 and GeO2)is discussed by Raman spectra.The results indicate that for Er3+-doped tellurite glass,besides improving the thermal stability of glasses,introducing the network former with appropriate phonon energy is helpful for the improvement of 1.53 μm emission via decreasing the lifetime of Er3+ ∶4 I11/2 level,and lowering the upconversion luminescence in visible wavelength.The present glasses exhibit a large emission cross section ((9.64—10.96)×10-21 cm2)and broad full width at half maximum (FWHM)(50—67 nm),which make them promising host materials for broadband Er3+-doped fiber.

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