Influence of temperature, dose rate and optical power on the radiation-induced attenuation of a commercial rad-hard optical fiber
Résumé
The literature offers numerous studies on the Radiation-Induced Attenuation (RIA) of various fibers as a function of irradiation parameters (dose and dose rate). However, RIA also depends on temperature and on the optical power guided by the fiber. Rarer are the studies that take into account the latter two parameters. This work focuses on the joint influence of temperature, dose rate and optical power on the RIA of a commercial rad-hard optical fiber. Experiments involve two values for each parameter: 22 and -62 °C, 25 and 250 Gy/h, 10 nW and 3 mW. Measurements have been carried out at a wavelength of 1540 nm or 1542 nm. Results show that at low optical power, the RIA difference observed when irradiating at two different dose rates is almost constant as a function of dose. Moreover, when the optical power and the temperature are high, dose rate effect almost cancels out.
Domaines
Physique [physics]
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Caussanel-2019-Influence of temperature, dose.pdf (1.04 Mo)
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