Abstract
Fiber Bragg gratings (FBG's) written in a 10 mol.% Ge-doped core silica fiber using a phase mask were exposed to γ-radiation. The transmission and reflection spectra were recorded during irradiation up to doses in excess of 1 MGy. There was no detectable change of the Bragg peak amplitude and the grating temperature sensitivity. The radiation-induced shift of the Bragg wavelength saturated at a dose of 0.1 MGy at a level less than 25 pm, which could still be decreased by optimization of the grating parameters. Our results confirm that FBG's are good candidates for sensing applications in radiation environments.
| Original language | English |
|---|---|
| Pages (from-to) | 1159-1161 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 11 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 1999 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
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