Abstract
We investigate the temperature dependence of radiation-induced attenuation (RIA) at 1 310
nm for a Ge/P co-doped fiber after a steady-state \gamma -ray irradiation. A irradiation facility
60Co source is used to irradiate the fiber at a dose rate of 0.5 Gy/min, satisfying a total dose of
100 Gy. The test temperature ranges from -40 to 60 oC by 20 oC, and the RIA of the fiber is obtained
using a power measuring device. The experimental result demonstrates that RIA exhibits a steady,
monotonic, and remarkable temperature dependence after approximately 48 h of accelerated annealing
at 70 oC. The optical fiber irradiated with a high dose and annealed sufficiently can be used as a
temperature sensor.
© 2012 Chinese Optics Letters
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