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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 10,
  • Issue 11,
  • pp. 110604-110604
  • (2012)

Temperature dependence of radiation-induced attenuation of optical f ibers

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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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