Non-linear optical properties of silica-glass-core-fiber waveguides under intense pulsed reactor irradiation

O. A. Plaksin, N. Kishimoto, T. Shikama

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


The light emission and transient optical loss (TOL) of KU-1 (Russia) and K-3 (Japan) fibers during pulsed reactor irradiation (pulse duration 80 μs, dose rate <7×1016 n/cm2s) have been measured in the visible region. The intensity of fast component of light emission obeys sub-linear dose rate dependence. The intensity of light emission and the TOL depend on the intensity of probing light. Lower intensity of the light emission is observed for higher intensity of probing light. The light emission quenching occurs for wavelengths shorter or longer than the wavelength of probing light. Probing with light enhances the TOL and shortens the decay time of TOL. A 'two-photon-flows' model has been introduced to analyze correlation between the effect of light emission quenching and the TOL enhanced by probing light. The effect of light emission quenching provides means to control the optical properties of fibers in radiation environments.

Original languageEnglish
Pages (from-to)1490-1494
Number of pages5
JournalJournal of Nuclear Materials
Issue number1-3 PART B
Publication statusPublished - 2004 Aug 1
EventProceedings of the 11th Conference on Fusion Research - Kyoto, Japan
Duration: 2003 Dec 72003 Dec 12

ASJC Scopus subject areas

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


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