RADIATION RESISTANT CHARACTERISTICS OF THE PURE SILICA CORE FIBERS. THE ABSORPTION SPECTRA IN THE UV REGION.

Y. Hoshi, K. Nagasawa, T. Fujii, R. Tomon, Y. Ohki, K. Yahagi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The optical absorption spectra of pure silica core optical fibers were measured in the region from 200nm to 600nm. An absorption band at 340nm is observed in samples manufactured by a certain plasma method, and the tail of this band strongly affects the visible range. A 245nm band, believed to be caused by oxygen vacancies, is observed in low OH samples. This band is observed in samples which show no peroxy-radical related ESR signals. It seems that when the sample lacks oxygen, a 245nm band is observed, while it has too-much oxygen, peroxy-radicals are observed. In OH-rich samples neither 245nm band nor peroxy-radicals are observed. This seems to be the effect of either OH termination or manufacturing method.

    Original languageEnglish
    Title of host publicationProceedings of the Symposium on Electrical Insulating Materials
    Place of PublicationTokyo, Jpn
    PublisherInst of Electrical Engineers of Japan
    Pages229-232
    Number of pages4
    Publication statusPublished - 1985

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    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Hoshi, Y., Nagasawa, K., Fujii, T., Tomon, R., Ohki, Y., & Yahagi, K. (1985). RADIATION RESISTANT CHARACTERISTICS OF THE PURE SILICA CORE FIBERS. THE ABSORPTION SPECTRA IN THE UV REGION. In Proceedings of the Symposium on Electrical Insulating Materials (pp. 229-232). Inst of Electrical Engineers of Japan.