Upconversion luminescence in Tm3+/Yb3+co-doped double-clad silica fibers under 980 nm cladding pumping

Halder, Arindam and Paul, Mukul Chandra and Damanhuri, Siti Sarah Ahmad and Huri, N.A.D. and Hamzah, Azura and Harun, Sulaiman Wadi and Ahmad, Harith and Das, Sourav and Pal, Mrinmay and Bhadra, Shyamal Kumar (2012) Upconversion luminescence in Tm3+/Yb3+co-doped double-clad silica fibers under 980 nm cladding pumping. Journal of Modern Optics, 59 (6). pp. 527-532. ISSN 0950-0340

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Official URL: https://doi.org/10.1080/09500340.2011.636154

Abstract

An investigation is reported of the visible and near-infrared upconversions in Tm 3+/Yb 3+ co-doped double-clad silica fibers (TYDFs) under excitation at 980nm. The TYDFs used were fabricated using the modified chemical vapor deposition (MCVD) and solution doping techniques. Three distinct upconversion luminescences were observed at wavelengths of 482, 649 and 816nm and their intensities found to increase with Yb 3+ concentration. The intensity of blue and red fluorescence bands at 482 and 649nm were found to be the highest with LTY-8 fiber, which had Tm 3+ and Yb 3+ concentrations of 5.610 19 and 15.510 19 ions/cc, respectively. The upconversion luminescence intensity was also observed to decrease with an increase in temperature. The main emission switched from 482nm to 816nm as the temperature increased above 200C.

Item Type: Article
Uncontrolled Keywords: Blue emission; Thulium/ytterbium-doped fiber; Upconversion luminescence
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 04 Jan 2019 07:27
Last Modified: 04 Jan 2019 07:27
URI: http://eprints.um.edu.my/id/eprint/19897

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