Journal
CHINESE PHYSICS B
Volume 21, Issue 4, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/21/4/043302
Keywords
fluorophosphate glass; McCumber theory; Judd-Ofelt theory; fluorescence lifetime
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Funding
- National Natural Science Foundation of China [11075026]
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Using the technique of high-temperature melting, a new Er3+/Yb3+ co-doped fluorophosphate glass was prepared. The absorption and fluorescence spectra were investigated in depth. The effect of Er3+ and Yb3+ 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 I-4(13/2) level (tau(m))of Er3+ ions was 8.23 ms, and the full width at half maximum of the dominating emission peak was 68 nm at 1.53 mu m. The large stimulated emission cross section of the Er3+ was calculated by the McCumber theory. The spectroscopic properties of Er3+ ion were compared with those in different glasses. The full width at half maximum and sigma(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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