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Fluorine and chlorine effects on radiation-induced loss for GeO2-doped silica optical fibers

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2 Author(s)
Shibata, Shuichi ; Nippon Telegraph and Telephone Corporation, Tokai, Ibaraki, Japan ; Nakahara, Motohiro

Fluorine and chlorine effects on radiation-induced loss associated with the preexisting defects have been investigated. It is found that preexisting defects in fibers are closely related to radiation-induced loss. Fluorine and chlorine doping in GeO2-doped silica core optical fibers decreases GeO absorption at 0.24 μm and ESR signal intensity due to germanium-related paramagnetic defect. Fluorine and chlorine doping is effective in decreasing the radiation-induced losses in GeO2-doped silica core optical fibers.

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Lightwave Technology, Journal of  (Volume:3 ,  Issue: 4 )