1. Improved Fluorescence from Tm 3+ /Er 3+ /Ce 3+ Triply Doped Bismuth-Silicate Glasses for S+C-bands Amplifiers
- Author
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Xu Tie-Feng, Liu Li-Ren, Nie Qiuhua, Wang Xun-Si, Zhang Xianghua, Dai Shi-Xun, and Shen Xiang
- Subjects
Materials science ,Quenching (fluorescence) ,business.industry ,Doping ,Analytical chemistry ,General Physics and Astronomy ,chemistry.chemical_element ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Population inversion ,01 natural sciences ,Ion ,Bismuth ,010309 optics ,Optics ,chemistry ,0103 physical sciences ,Spontaneous emission ,Emission spectrum ,0210 nano-technology ,business ,Spectroscopy - Abstract
Fluorescence of Tm3+/Er3+ codoped bismuth-silica (BS) glasses and the sensitization of Ce3+ are investigated. It shows that Ce3+ codoping with Tm3+/Er3+ in BS glasses results in a quenching of Tm3+ ion emission from 3F4 to the 3H6 level. Consequently, the 1.47 μm emission occurs after the population inversion between the 3H4 and 3F4 levels. Furthermore, the codoped glasses show the broad emission spectra over the whole S and C bands with full-width at half-maximum (FWHM) up to about 119 nm, as it combines 1.55 μm emission band of Er3+ with 1.47 μm emission band of Tm3+ under 800 nm excitation.
- Published
- 2006