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针对光纤陀螺用光学器件在空间辐射环境下受电离损伤和位移损伤影响性能下降的问题,分别分析了光纤、SLD光源、PIN-FET探测器的空间辐射效应。为保证光纤陀螺在空间的工作性能,从被动屏蔽和主动加固两方面讨论了光学器件的辐射防护技术。考虑到不同光学器件对不同类型辐射损伤的敏感性以及航天器载荷对重量的严格要求,从电离损伤屏蔽和位移损伤屏蔽两方面对屏蔽厚度进行了优化设计。通过对各光学器件辐射效应机理的分析,讨论了提高光学器件本身抗辐射能力的主动加固技术。
Aiming at the problem that the performance of optical fiber gyroscope optics devices affected by ionization damage and displacement damage in space radiation environment is reduced, the spatial radiation effects of optical fiber, SLD light source and PIN-FET detector are respectively analyzed. In order to ensure the working performance of optical fiber gyroscope in space, the radiation protection technology of optical devices is discussed from passive shielding and active reinforcement. Considering the sensitivity of different optical devices to different types of radiation damage and the strict requirements of spacecraft load on the weight, the shield thickness is optimized from the aspects of ionization damage shielding and displacement damage shielding. Through the analysis of the radiation effect mechanism of each optical device, the active reinforcement technology to improve the radiation resistance of the optical device itself is discussed.