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Gamma-ray radiation hardened properties of pure silica core single-mode fiber and its data link system in radioactive environments

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8 Author(s)
M. Kyoto ; Sumitomo Electr. Ind. Ltd., Yokohoma, Japan ; Y. Chigusa ; M. Ohe ; H. Go
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The radiation resistances of pure silica core single-mode optical fiber (Si-SMF) and its data link module at 1.30 μm were investigated. It was found that the induced loss of fibers exposed to γ-rays at a low dose rate was proportional to the 0.54 power of total dose from the result of a low dose rate irradiation test for 3 years, and the induced loss for 40 years aging at 1 R/h was estimated to be 1.8 dB/km. It was ascertained that transmission is achievable at a bit rate of 125 Mb/s even under high dose rate irradiation to a total dose of 108 R, which corresponds to the postulated maximum γ-ray exposure in nuclear power plants

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Journal of Lightwave Technology  (Volume:10 ,  Issue: 3 )