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Proceedings Paper

Highly sensitive type IA fiber Bragg gratings as sensors in radiation environments
Author(s): A. Faustov; P. Saffari; C. Koutsides; A. Gusarov; M. Wuilpart; P. Mégret; L. Zhang; K. Kalli
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Paper Abstract

Type IA fiber gratings have unusual physical properties compared with other grating types. We compare with performance characteristics of Type IA and Type I Bragg gratings exposed to the effects of Co60 gamma-irradiation. A Bragg peak shift of 190 pm was observed for Type IA gratings written in Fibercore PS-1250/1500 photosensitive fiber at a radiation dose of 116 kGy. This is the largest wavelength shift recorded to date under radiation exposure. The Type IA and Type I gratings show different kinetics under radiation and during post-radiation annealing; this can be exploited for the design of a grating based dosimetry system.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842153 (17 October 2012); doi: 10.1117/12.975186
Show Author Affiliations
A. Faustov, SCK CEN (Belgium)
Univ. of Mons (Belgium)
P. Saffari, Aston Univ. (United Kingdom)
C. Koutsides, Aston Univ. (United Kingdom)
Cyprus Univ. of Technology (Cyprus)
A. Gusarov, SCK CEN (Belgium)
M. Wuilpart, Univ. of Mons (Belgium)
P. Mégret, Univ. of Mons (Belgium)
L. Zhang, Aston Univ. (United Kingdom)
K. Kalli, Cyprus Univ. of Technology (Cyprus)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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