Volume 32 Issue 08
Aug.  2006
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Xiao Wen, Zhang Yuyan, Liu Dewenet al. 60Co radiation effects and photobleaching properties of polarization-maintaining fiber in fiber optic gyroscopes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(08): 966-968. (in Chinese)
Citation: Xiao Wen, Zhang Yuyan, Liu Dewenet al. 60Co radiation effects and photobleaching properties of polarization-maintaining fiber in fiber optic gyroscopes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(08): 966-968. (in Chinese)

60Co radiation effects and photobleaching properties of polarization-maintaining fiber in fiber optic gyroscopes

  • Received Date: 26 Sep 2005
  • Publish Date: 31 Aug 2006
  • For the space application of the interference fiber optic gyroscope(IFOGs), the experiments were made on the PM fiber coil by 60Co radiation source at different dose rate. Radiation effects of it were got from the experiments. And photobleaching experiments were made on the polarization maintain(PM) fiber coil using laser diode(LD). Several conclusions were got form the experiments. First, loss of the PM fiber coil increased in radiation environment. And the bigger the dose rate, the quicker the loss increased. The more the total dose, the bigger the loss. Second, LD photobleaching can meliorate the increased loss of the fiber, and the larger the LD optical power, the better the photobleaching effect. It is concluded that photobleaching can be used in IFOGs as a radiation hardening operation when applied in space.

     

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