Radiation effects on optical frequency domain reflectometry fiber-based sensor

We investigate the radiation effects on germanosilicate optical fiber acting as the sensing element of optical frequency domain reflectometry devices. Thanks to a new setup permitting to control temperature during irradiation, we evaluate the changes induced by 10 keV x rays on their Rayleigh respon...

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Bibliographic Details
Published in:Optics letters 2015-10, Vol.40 (20), p.4571-4574
Main Authors: Rizzolo, S, Marin, E, Cannas, M, Boukenter, A, Ouerdane, Y, Périsse, J, Macé, J-R, Bauer, S, Marcandella, C, Paillet, P, Girard, S
Format: Article
Language:English
Subjects:
Calibration
Electronics
Engineering Sciences
Irradiation
Optical fibers
Optical frequency
Radiation effects
Radiation measurement
Reflectometry
Sensors
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Summary:We investigate the radiation effects on germanosilicate optical fiber acting as the sensing element of optical frequency domain reflectometry devices. Thanks to a new setup permitting to control temperature during irradiation, we evaluate the changes induced by 10 keV x rays on their Rayleigh response up to 1 MGy in a temperature range from -40°C up to 75°C. Irradiation at fixed temperature points out that its measure is reliable during both irradiation and the recovery process. Mixed temperature and radiation measurements show that changing irradiation temperature leads to an error in distributed measurements that depends on the calibration procedure. These results demonstrate that Rayleigh-based optical fiber sensors are very promising for integration in harsh environments.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.40.004571