Gamma radiation-induced blue shift of resonance peaks of Bragg gratings in pure silica fibres

Research output: Contribution to journalArticle

Authors

  • Andrei Goussarov
  • Alexey Faustov
  • Patrice Mégret
  • Marc Wuilpart
  • Damien Kinet
  • Andrey Zhukov
  • S.G. Novikov
  • V.V. Svetukhin
  • A.A. Fotiadi

Institutes & Expert groups

  • Ulyanovsk State University
  • UMons - University of Mons-Hainaut

Documents & links

DOI

Abstract

We report the first observation of a significant gamma radiation-induced blue shift of the reflection/transmission peak of fibre Bragg gratings inscribed into pure-silica core fibres via multiphoton absorption of femtosecond pulses. At a total dose of ~100 kGy, the shift is ~20 pm. The observed effect is attributable to the ionising radiation-induced decrease in the density of the silica glass when the rate of colour centre formation is slow. We present results of experimental measurements that provide the key parameters of the dynamics of the gratings for remote dosimetry and temperature sensing.

Details

Original languageEnglish
Pages (from-to)150-154
Number of pages5
JournalQuantum Electronics
Volume46
Issue number2
DOIs
Publication statusPublished - 1 Feb 2016

Keywords

  • Fibre Bragg grating, Gratingg inscription by femtosecond pulses, radiation effects, remote sensing

ID: 5648032