Performance of an F-Doped Fiber under Very High Ionizing Radiation Exposures

E. Shafir, S. Zilberman, Y. London, M. Dadon, G. Berkovic, S. Vaintraub, A. Krakovich, K. Ben-Meir, T. Makmal

Research output: Contribution to journalArticlepeer-review


Radiation-induced attenuation (RIA) of silica-based optical fibers is a well-known and documented phenomenon. Radiation-hardened fibers, mainly having pure silica core (PSC), combat this effect successfully. Even better results have been reported for fibers with Fluorine-doped cores, especially for the transmission of visible wavelengths. Here, we show the results of an experiment at telecom wavelengths (1310 and 1550 nm) in a nuclear reactor core, demonstrating that for dose levels up to tens of MGy (SiO2) the F-doped fiber indeed shows less RIA than PSC fibers. However, at higher levels, the F-doped fiber loses its advantage, and the PSC fiber shows lower RIA than the F-doped for these doses and wavelengths.

Original languageEnglish
Pages (from-to)2290-2296
Number of pages7
JournalIEEE Transactions on Nuclear Science
Issue number12
StatePublished - 1 Dec 2022
Externally publishedYes


  • Optical fibers
  • radiation-induced effects


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