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А.Л. Томашук, Д.А. Дворецкий, В.А. Лазарев
122
ISSN 0236-3933. Вестник МГТУ им. Н.Э. Баумана. Сер. Приборостроение. 2016. № 5
RADIATION-RESISTANT OPTICAL FIBERS
A.L. Tomashuk
1
tomashuk@fo.gpi.ruD.A. Dvoretskiy
2
ddvoretskiy@gmail.comV.A. Lazarev
2
A.B. Pnev
2
V.E. Karasik
2
M.Yu. Salganskiy
3
P.F. Kashaykin
1
V.F. Khopin
3
A.N. Guryanov
3
E.M. Dianov
1
1
Fiber Optics Research Center, Russian Academy of Sciences, Moscow, Russian Federation
2
Bauman Moscow State Technical University, Moscow, Russian Federation
3
Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences,
Nizhny Novgorod, Russian Federation
Abstract
Keywords
This article summarizes the results of the research of the micro-
scopic mechanisms of radiation-induced attenuation of light
(RIA) in radiation-resistant optical fibers with an undoped and
F-doped silica
core. We created a laboratory technology for
radiation-resistant optical fibers with an undoped high-oxyge-
n-excess silica core. Our research discovered that oxygen excess
in the core promotes significant suppression of all the RIA
mechanisms. Direct experimental comparison of the fibers
developed and an industrial ra-diation-resistant fiber of the
“J-fiber” company shows that RIA in the former fibers is a few
times lower than in the latter at the wavelengths of 1.31 and
1.55 μm in the course of γ-irradiation from a
60
Co-source at a
dose rate of 7.6 Gy/s up to a dose of at least ~28 kGy
Optical fiber, radiation-induced
attenuation of light, radiation
resistance
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