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http://dx.doi.org/10.6109/jkiice.2016.20.1.161

Radiation Effects on Fiber Bragg Grating Sensors Written in UV KrF Laser Process 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.1, 2016 , pp. 161-166 More about this Journal
Abstract
We studied the effect of $Co^{60}$ gamma-radiation on the FBGs by a variation of grating the fabrication parameters. The FBGs were fabricated in a different UV KrF laser intensity using the same boron co-doped photo-sensitive fiber and exposed to gamma-radiation up to a dose of 33.8 kGy. According to the experimental data and analysis results, We confirmed that the laser intensity for grating inscription has a highly effect on the radiation sensitivity of the FBGs and the radiation-induced Bragg wavelength shift by the change of laser process condition showed a difference more than about 30 %.
Keywords
Fiber Bragg gratings; Gamma radiation; Optical fiber sensor; Radiation effect; Photo-sensitive fiber;
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Times Cited By KSCI : 1  (Citation Analysis)
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