Spectroscopic properties in Er<sup>3+</sup>/Yb<sup>3+</sup> Co-doped fluorophosphate glass |
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| Authors: | Zheng Tao Qin Jie-Ming Jiang Da-Yong Lü Jing-Wen and Xiao Sheng-Chun |
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| Affiliation: | Department of Material Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China |
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| Abstract: | Using the technique of high-temperature melting, a new Er 3+ /Yb 3+ co-doped fluorophosphate glass was prepared. The absorption and fluorescence spectra were investigated in depth. The effect of Er 3+ and Yb 3+ concentration on the spectroscopic properties of the glass sample was also discussed. According to the Judd–Ofelt theory, the oscillator strength was computed. The lifetime of 4 I 13/2 level (τ m ) of Er 3+ ions was 8.23 ms, and the full width at half maximum of the dominating emission peak was 68 nm at 1.53 μm. The large stimulated emission cross section of the Er 3+ was calculated by the McCumber theory. The spectroscopic properties of Er 3+ ion were compared with those in different glasses. The full width at half maximum and σ e are larger than those of other glass hosts, indicating this studied glass may be a potentially useful candidate for high-gain erbium-doped fiber amplifier. |
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| Keywords: | fluorophosphate glass McCumber theory Judd-Ofelt theory fluorescence lifetime |
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