Ultraviolet photoluminescence in Gd-doped silica and phosphosilicate fibers

Wang, Yun and He, Jing and Barua, Pranabesh and Chiodini, Nortberto and Steigenberger, Sebastian and Abdul Khudus, Muhammad Imran Mustafa and Sahu, Jayanta Kumar and Beresna, Martynas and Brambilla, Gilberto (2017) Ultraviolet photoluminescence in Gd-doped silica and phosphosilicate fibers. APL Photonics, 2 (4). 046101. ISSN 2378-0967, DOI https://doi.org/10.1063/1.4976304.

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Official URL: https://doi.org/10.1063/1.4976304


Optical fiber lasers operating in the near infrared and visible spectral regions have relied on the spectroscopic properties of rare earth ions such as Yb3+, Er3+, Tm3+, Nd3+, and Sm3+. Here, we investigate Gd3+ doping in phosphosilicate and pure silica fibers using solution doping and sol-gel techniques, respectively, for potential applications in the ultraviolet. Photoluminescence spectra for optical fiber bundles and fiber preforms were recorded and compared. Emissions at 312 nm (phosphosilicate) and 314 nm (pure silica) were observed when pumping to the Gd3+ 6DJ, 6IJ, and 6PJ = 5/2, 3/2 energy levels. Oxygen deficient center was observed in solution doping sample with a wide absorption band centered at around 248 nm not affecting pumping to 6IJ states.

Item Type: Article
Uncontrolled Keywords: Optical fiber bundle; Oxygen deficient centers; Phosphosilicate fibers; Photoluminescence spectrum; Sol-gel technique; Spectroscopic property; Ultraviolet photoluminescence; Visible spectral regions
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 22 Oct 2019 06:47
Last Modified: 22 Oct 2019 06:47
URI: http://eprints.um.edu.my/id/eprint/22820

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