| 光谱学与光谱分析 |
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| Spectroscopic Analysis of Er3+ in Er3+/Yb3+ Co-Doped LiNbO3 Crystal |
| WANG Dun-chun, ZHANG De-long, CUI Yu-ming, CHEN Cai-he |
| College of Precision Instruments and Opto-Electronics Engineering, Tianjin University，Tianjin 300072, China |
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Abstract At room temperature, α-polarized absorption spectra of as-grown and annealed Er3+/Yb3+ co-doped, Z-cut LiNbO3 single crystals, grown by using Czochralski method, were measured in the wavelength range of 300-1 650 nm. The spectroscopic properties of Er3+ were analysed by using Judd-Ofelt theory. The experimental values of the electron transition strengths of several major transitions from the ground state to excited-state manifolds were evaluated from the measured integrated absorption coefficients of Er3+. The Judd-Ofelt parameters were determined by using least square method. According to the fitted Judd-Ofelt parameters, the spontaneous emission rates, the fluorescence branch ratios from the excited-state manifolds J to the lower-lying manifolds J′, as well as the radiative lifetimes of the excited states were numerically calculated. In addition, Yb3+ co-doping and thermal anneal effects on the spectroscopic properties of Er3+ were also considered in this work.
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Received: 2004-08-23
Accepted: 2004-11-19
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Corresponding Authors:
WANG Dun-chun
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| Cite this article: |
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WANG Dun-chun,ZHANG De-long,CUI Yu-ming, et al. Spectroscopic Analysis of Er3+ in Er3+/Yb3+ Co-Doped LiNbO3 Crystal [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(12): 1912-1915.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2005/V25/I12/1912 |
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