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Author Annapoorani, K. ♦ Marimuthu, K. ♦ Murthy, N. Suriya
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ABSORPTION ♦ AMPLIFIERS ♦ BORATES ♦ CROSS SECTIONS ♦ DOPED MATERIALS ♦ ENERGY TRANSFER ♦ ERBIUM ADDITIONS ♦ FLUORESCENCE ♦ GAIN ♦ GLASS ♦ LASER MATERIALS ♦ LUMINESCENCE ♦ NEAR INFRARED RADIATION ♦ QUANTUM EFFICIENCY ♦ QUENCHING ♦ SODIUM ♦ SODIUM COMPOUNDS ♦ STIMULATED EMISSION ♦ TELLURIUM COMPOUNDS ♦ YTTERBIUM ADDITIONS
Abstract Er{sup 3+}:Yb{sup 3+} co-doped Sodium telluroborate glasses were prepared with the chemical composition (49.5–x)B{sub 2}O{sub 3}+25TeO{sub 2}+5Li{sub 2}CO{sub 3}+10ZnO+10NaF+0.5Er{sub 2}O{sub 3}+xYb{sub 2}O{sub 3} (where x= 0.1, 0.5, 1.0 and 2.0 in mol %) following the melt quenching technique. With the addition of Yb{sup 3+} ions into Er{sup 3+} ions in the prepared glasses, the absorption cross-section values were found to increase due to the effective energy transfer from {sup 2}F{sub 5/2} level of Yb{sup 3+} ions to the {sup 4}I{sub 11/2} level of Er{sup 3+} ions. The fluorescence around 1550 nm correspond to the {sup 4}I{sub 13/2}→{sup 4}I{sub 15/2} transition was observed under 980 nm pumping. Among the present glasses, integrated intensity was found to be higher for 1.0 mol% Yb{sup 3+} ion glass. The parameters such as stimulated emission cross- section, Gain bandwidth and quantum efficiency of the {sup 4}I{sub 13/2}→{sup 4}I{sub 15/2} transition was found to be higher for the NTBE1.0Y glass and the same is suggested for potential NIR lasers and optical amplifier applications.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-05-23
Publisher Place United States
Volume Number 1731
Issue Number 1


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