Acta Phys. -Chim. Sin. ›› 2011, Vol. 27 ›› Issue (09): 2095-2100.doi: 10.3866/PKU.WHXB20110906


Luminance Properties and Judd-Ofelt Theory Study of Yb3+ Sensitization Wideband Er3+ Doped Fluorphosphate Glass

ZHENG Tao1, LI Pan1, XIAO Sheng-Chun1, WANG Dan1, Lü Jing-Wen1, MEN Zhi-Wei2   

  1. 1. Department of Material Science and Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China;
    2. Department of Physics, Jilin University, Changchun 130012, P. R. China
  • Received:2011-03-03 Revised:2011-06-01 Published:2011-08-26
  • Contact: Lü Jing-Wen
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (11075026).

Abstract: A new Er3+/Yb3+-codoped fluorphosphate glass was prepared by high temperature melting. Its density, absorption spectra, and fluorescence spectra were measured and investigated. The effect of Er3+ and Yb3+ concentrations on the spectroscopic properties of the glass sample are discussed. A Judd-Ofelt theory analysis on the absorption spectra was performed. The oscillator strengths were Ωt (t=2, 4, 6 ), Ω2= 4.36×10-20 cm2, Ω4=1.35×10-20 cm2, and Ω6=0.79×10-20 cm2. The lifetime (τm) of the 4I13/2 level for the Er3+ ions was 8.26 ms and the full width at half maximum (FWHM) of the main emission peak was 68 nm at 1.53 μm. The large stimulated emission cross-section (σe=8.5×10-21 cm2) of the Er3+ was calculated using McCumber theory. The spectroscopic properties of the Er3+ ion were compared among different glasses. The FWHM and σe of Er3+/Yb3+-codoped fluorphosphate glass were found to be larger than those of other glass hosts, which indicates that this glass may be a potentially useful candidate material host for a high-gain erbium-doped fiber amplifier.

Key words: Fluorphosphate glass, McCumber theory, Judd-Ofelt theory, Fluorescence spectrum, Fluorescence lifetime


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