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Proceedings Paper

Comparative study of the irradiation induced degradation in large diameter optical fibers
Author(s): Dan G. Sporea; Adelina Sporea
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Paper Abstract

The paper presents a comparative study concerning the irradiation induced optical attenuation in several large diameter (400 microns) optical fibers subjected to gamma-rays, neutron and proton irradiation. The optical fiber samples fall into two categories: optical fibers with an enhanced UV transmission (high OH content core) and solarization resistant optical fibers. They are all commercially available products. The irradiation conditions were as follows: a) gamma irradiation at a 60Co source, with a dose rate of 5.3 kGy/h +/- 5%, up to the maximum total irradiation dose of 43.22 kGy; b) neutron irradiation (mean energy 5.2 MeV) using a deuteron beam (13 MeV) and a thick beryllium target, for a total fluence of 1.18x1013 n.cm-2; c) proton irradiation with particles having an energy of 15 MeV, at a dose rate 200 Gy/s, for the maximum total dose of 1.81 MGy. The paper refers also to the Gaussian deconvolution of the attenuation spectra, which was performed at several wavelengths corresponding to the optical attenuation peak wavelengths reported in the literature, for the UV spectral range. This approach makes possible the comparative evaluation of the color centers dynamics as function of the irradiation conditions.

Paper Details

Date Published:
PDF: 10 pages
Proc. SPIE 6193, Reliability of Optical Fiber Components, Devices, Systems, and Networks III, 619307; doi: 10.1117/12.661205
Show Author Affiliations
Dan G. Sporea, National Institute for Laser, Plasma and Radiation Physics (Romania)
Adelina Sporea, National Institute for Laser, Plasma and Radiation Physics (Romania)


Published in SPIE Proceedings Vol. 6193:
Reliability of Optical Fiber Components, Devices, Systems, and Networks III
Hans G. Limberger; M. John Matthewson, Editor(s)

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