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http://dx.doi.org/10.6109/jkiice.2016.20.10.1980

Radiation Hardness Characteristics of Fiber Bragg Gratings on the High Temperature Annealing Condition  

Kim, Jong-Yeol (Department of Nuclear Convergence Technology Development, Korea Atomic Energy Research Institute (KAERI))
Lee, Nam-Ho (Department of Nuclear Convergence Technology Development, Korea Atomic Energy Research Institute (KAERI))
Jung, Hyun-Kyu (Department of Nuclear Convergence Technology Development, Korea Atomic Energy Research Institute (KAERI))
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.20, no.10, 2016 , pp. 1980-1986 More about this Journal
Abstract
In this study, we studied the gamma-radiation effect of fiber Bragg gratings (FBGs) on the high temperature annealing condition after grating inscription using a KrF UV laser (248 nm). The FBGs were fabricated in a different annealing temperature using the same commercial Ge-doped silica core fiber (SMF-28e) and exposed to gamma-radiation up to a dose of 31 kGy at the dose rate of 115 Gy/min. The high temperature annealing procedure for grating stabilization was applied to change the radiation sensitivity of the FBGs. According to the experimental data and analysis results, the gratings that were stabilized at different temperatures at 100, 150 and $200^{\circ}C$ have clearly shown that exposure to higher temperatures increases their radiation sensitivity. The radiation-induced Bragg wavelength shift (BWS) was shown a difference of up to about a factor of two depending on the annealing temperature conditions of the gratings.
Keywords
Gamma ray; Fiber Bragg grating; Annealing condition; radiation effect;
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Times Cited By KSCI : 1  (Citation Analysis)
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