Effect of OH-group content on optical properties of silica core fiber waveguides during reactor irradiation

O. A. Plaksin, V. A. Stepanov, T. Shikama

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The transient optical loss (TOL) of silica core optical fiber waveguides of KU-1 grade (Russia, OH content 1000 ppm) and K-3 grade (Japan, OH content 10 ppm) have been measured during pulsed reactor irradiation (BARS-6 pulsed fission reactor (IPPE), pulse 80 μs, dose per pulse <5.5 × 1012 n/cm2 (9 Gy), dose rate <7 × 1016 n/cm2s (1.1 × 105 Gy/s) in the visible range (fixed wavelengths 532 and 632 nm). Strong contribution from the light scattering induced by the irradiation in the silica fibers resulted in TOL. The light scattering is responsible for similarity of the spectral and temporal dependence of TOL of the optical fibers tested. The TOL of the unirradiated silica fibers is lower in the fiber with higher OH-group concentration (KU-1), whereas the difference in TOL of the KU-1 (high OH) and K-3 fiber (low OH) irradiated to a dose of ≈103 Gy is not so significant. The lower TOL of the KU-1 fiber is probably due to the effect of OH-groups on phase stability in the trap subsystem.

Original languageEnglish
Pages (from-to)1242-1245
Number of pages4
JournalJournal of Nuclear Materials
Volume307-311
Issue number2 SUPPL.
DOIs
Publication statusPublished - 2002 Dec

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

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