Multichannel transition emissions of Dy{sup 3+} in fiber-adaptive germanium tellurite glasses

Journal Article · Thu Mar 28 00:00:00 EDT 2013 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4796185· OSTI ID:22102319

Li, Y. H.; Chen, B. J.; Lin, H. ^[1]; Pun, E. Y. B. ^[2]

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1. School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034 (China)
2. Department of Electronic Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong (China)

Multichannel transition visible and near-infrared (NIR) fluorescences have been captured in Dy{sup 3+}-doped fiber-adaptive Na{sub 2}O-ZnO-PbO-GeO{sub 2}-TeO{sub 2} glasses. The maximum stimulated emission cross-sections {sigma}{sub em-max} were derived to be 0.33 Multiplication-Sign 10{sup -21}, 3.66 Multiplication-Sign 10{sup -21}, and 0.67 Multiplication-Sign 10{sup -21} cm{sup 2} for conventional visible emissions assigned to {sup 4}F{sub 9/2}{yields}{sup 6}H{sub J} (J = 15/2, 13/2, and 11/2) transitions, respectively. Infrequent multi-peak NIR emissions were recorded in the spectral range of 900-1500 nm, among which the values of {sigma}{sub em-max} were solved to be 1.05 Multiplication-Sign 10{sup -22} and 1.56 Multiplication-Sign 10{sup -22} cm{sup 2} for {approx}1.02 and {approx}1.18 {mu}m emission bands. Internal quantum efficiency for the {sup 4}F{sub 9/2} level and external quantum yield for visible emissions of Dy{sup 3+} were determined to be 88.44% and 12.38%, severally. Effective multichannel radiative emissions reveal a potential in developing fiber-lighting sources, tunable lasers, and NIR optical amplifiers.

• OSTI ID: 22102319
• Journal Information: Journal of Applied Physics, Vol. 113, Issue 12; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLIFIERS
CROSS SECTIONS
DOPED MATERIALS
DYSPROSIUM ADDITIONS
DYSPROSIUM COMPOUNDS
FIBERS
FLUORESCENCE
GERMANIUM OXIDES
GLASS
LASERS
LEAD OXIDES
NEAR INFRARED RADIATION
PEAKS
POTENTIALS
QUANTUM EFFICIENCY
SODIUM OXIDES
STIMULATED EMISSION
TELLURIUM OXIDES
YIELDS
ZINC OXIDES