Compositional dependence of the 1.3 mu m emission and energy transfer mechanism in Ge-Ga-S glasses doped with Pr3+
SCIE
SCOPUS
- Title
- Compositional dependence of the 1.3 mu m emission and energy transfer mechanism in Ge-Ga-S glasses doped with Pr3+
- Authors
- Park, SH; Heo, J; Kim, HS
- Date Issued
- 1999-11
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- Effects of concentration on the amplification efficiency at 1.3 mu m were investigated in Ge-Ga-S glass doped with 100-5000 ppm (in wt.) Pr3+. Quantum efficiencies and figure-of-merits (sigma(g)tau(m)) increased from 49%, 26.3 +/- 0.5 x 10(-25) cm(2) s to 66%, 31.1 +/- 0.5 x 10(-25) cm(2) s, respectively, with sulfur concentration decreasing from 69 to 63 at.%. Optimum compositions of the host glasses are Ge32Ga5S63 and Ge28Ga20S62 (at.%). Concentration of Pr3+ must be <500 ppm in weight to minimize detrimental cross relaxation, which is the major energy transfer process in glasses. A linear dependence of the reduced diffusion coefficients indicated an inhomogeneous distribution of Pr3+ in glasses. (C) 1999 Elsevier Science B.V. All rights reserved.
- Keywords
- PR3+-DOPED FLUORIDE FIBER; AMPLIFIERS; 1.3-MU-M; AMPLIFICATION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/20203
- DOI
- 10.1016/S0022-3093(99)00492-5
- ISSN
- 0022-3093
- Article Type
- Article
- Citation
- JOURNAL OF NON-CRYSTALLINE SOLIDS, vol. 259, page. 31 - 38, 1999-11
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- There are no files associated with this item.
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