Energy transfer and 1.48 mu m emission properties in chalcohalide glasses doped with Tm3+ and Tb3+
SCIE
SCOPUS
- Title
- Energy transfer and 1.48 mu m emission properties in chalcohalide glasses doped with Tm3+ and Tb3+
- Authors
- Lee, DJ; Heo, J; Park, SH
- Date Issued
- 2003-12-01
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- Emission characteristics and energy transfer in chalcohalide glasses doped with Tm3+ and Tb3+ were investigated and their potential as S-band fiber-optic amplifiers was evaluated. Upon the addition of CsBr into sulfide glass, intensity of the 1.48 mum emission (H-3(4) --> F-3(4) transition) from Tm3+ increased. At the same time, the lifetime of the H-3(4) level increased to 1.2 ms, approximately eight times longer than the value obtained from sulfide glass. Quantum efficiency of the transition also increased to approximately 90%. Cross relaxation between the H-3(4) and F-3(4) levels was significant when Tm3+ ion concentration exceeded 0.2 mol%. Population density of the F-3(4) level in Tm3+ decreased upon the addition of Tb3+ due to the TM3+:F-3(4) --> Tb3+:F-7(0.1.2) energy transfer. Population inversion became possible when Tb3+ concentration reached 0.11 mol%. (C) 2003 Elsevier B.V. All rights reserved.
- Keywords
- RARE-EARTH IONS; GA-S GLASSES; FIBER; INTENSITIES; AMPLIFIER; TM-3+
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/18226
- DOI
- 10.1016/j.jnoncrysol.2003.08.072
- ISSN
- 0022-3093
- Article Type
- Article
- Citation
- JOURNAL OF NON-CRYSTALLINE SOLIDS, vol. 331, no. 1-3, page. 184 - 189, 2003-12-01
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