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Fibers 2014, 2(2), 150-157; doi:10.3390/fib2020150

Side-Detecting Optical Fiber Doped with Tb3+ for Ultraviolet Sensor Application

Department of Power Engineering, Photonics and Lighting Technology, Faculty of Electrical Engineering, Bialystok University of Technology, 45 Wiejska Street, 15-351 Bialystok, Poland
* Author to whom correspondence should be addressed.
Received: 31 October 2013 / Revised: 30 March 2014 / Accepted: 4 April 2014 / Published: 16 April 2014
(This article belongs to the Special Issue Advances on Optical Fibers)
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In the article a novel construction of a side-detecting luminescent optical fiber for an UV sensor application has been presented. In the fiber, structure phosphate glass doped with 0.5 mol% Tb3+ ions was used as a UV sensitive core/ribbon. The luminescence spectrum of glass and the optical fiber was measured under UV excitation using a deuterium lamp. It was found that  large energy gap between upper (metastable) and lower (ground) levels of terbium ions incorporated in phosphate matrix leads to the effective emission at wavelengths of 489, 543, 586 and 621 nm, which correspond to 5D47FJ, (J = 3, 4, 5, 6) transitions respectively. Phosphate glass doped with optimal (the strongest VIS emission) concentration of Tb3+ (0.5 mol%) was used as the active core/ribbon in the construction of UV side-detecting optical fiber.
Keywords: luminescence; Tb3+ ions; UV sensor; optical fiber; side-detection luminescence; Tb3+ ions; UV sensor; optical fiber; side-detection
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Zmojda, J.; Kochanowicz, M.; Miluski, P.; Dorosz, D. Side-Detecting Optical Fiber Doped with Tb3+ for Ultraviolet Sensor Application. Fibers 2014, 2, 150-157.

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