Gamma-Radiation Effects on Bragg Gratings Written by Femtosecond UV Laser in Ge-Doped Fibers

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We studied the effect of Co60 gamma-radiation on the position and the amplitude of fiber Bragg gratings. These gratings were written with a femtosecond UV laser in three different fibers, both intrinsically photosensitive and hydrogen sensitized.We have found that in contrast with the results obtained on gratings written with low-intensity UV lasers, the Bragg peak shift under irradiation is almost independent on fiber type, fiber sensitization or grating amplitude. The grating strength behavior depends on the fiber type.


Original languageEnglish
Pages (from-to)2024-2028
JournalIEEE transactions on nuclear Science
Issue number4
Publication statusPublished - Aug 2010
EventRADECS 2009 - RADECS 2009, Brugge, Belgium
Duration: 14 Sep 200918 Sep 2009


  • Femtosecond UV Laser, fiber Bragg gratings, ionizing radiation-induced Bragg wavelength shift, optical fiber gamma-radiation effects

ID: 303394