Chinese Optics Letters, 2012, 10 (11): 110604, Published Online: Oct. 9, 2012
Temperature dependence of radiation-induced attenuation of optical f ibers
060.2310 Fiber optics 350.5610 Radiation 120.6780 Temperature 060.2370 Fiber optics sensors 060.2400 Fiber properties
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.
Jingming Song, Jianhua Guo, Xueqin Wang, Jing Jin. Temperature dependence of radiation-induced attenuation of optical f ibers[J]. Chinese Optics Letters, 2012, 10(11): 110604.
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