光纤陀螺抗辐照方案

Radiation hardening scheme of FOG

为了提高光纤陀螺的抗辐照性能,满足空间应用的各种需要,对光纤陀螺光电器件进行了大量的辐射试验,尤其是对光纤陀螺的敏感器件-保偏光纤环进行了深入分析,采用光褪色心的方案,即向保偏光纤环中注入大功率激光,通过退色心的方法降低由于辐射而引起的光纤损耗的增加,从而增加了保偏光纤环的抗辐照性能。在此基础上,在光纤陀螺重量增加不大的前提下,提出了光纤陀螺主动抗辐射方案。试验表明该方案能够有效的提高光纤陀螺的抗辐射性能,能大大提高空间应用光纤陀螺的可靠性和使用寿命,能够起到抗辐照的作用。

To improve the resist-radiation performance and meet the needs of space application, lots of radiation experiments on the opto-electronics elements of FOG were made. Based on analyzing radiation effects of the fiber coil, the photo-bleaching scheme, which used high-power laser injecting into it, can decrease the loss of fiber coil. At last, the active hardening scheme of FOG was presented. The experiments show that the photo-bleaching scheme can improve the resist-radiation performance and the reliability of FOG.