Charged particle activation analysis of oxygen in fluoride and chalcogenide glasses used for fiber amplifiers |
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| Authors: | K. Shikano Y. Nishida T. Kobayashi T. Kanamori M. Shimizu K. Masumoto T. Ohtsuki |
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| Affiliation: | (1) NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation, Ibaraki, 319-1193, Japan;(2) NTT Electronics Corporation, Ibaraki, 319-1193, Japan;(3) Radiation Science Center, High Energy Accelerator Research Organization, Midori-cho, Tanashi, Tokyo, 188-8501, Japan;(4) Laboratory of Nuclear Science, Tohoku University, Mikamine, Taihaku-ku, Sendai, 982-0826, Japan |
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| Abstract: | The proton activation analysis of oxygen was studied in fluoride and chalcogenide glasses used for fiber amplifiers. First, we studied the interfering nuclear reactions from glass matrices to determine the oxygen concentration in these glasses. By using substoichiometric separation for 18F after irradiation, we found that the oxygen concentration was 12 to 204 ppm in InF3-based fluoride glass and 0.04% to 0.7% in chalcogenide glass containing sodium. We also discuss the relation between oxygen concentration and optical properties such as the infrared absorption spectrum and fluorescence lifetime. |
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