Journal of Applied Sciences ›› 2020, Vol. 38 ›› Issue (4): 579-594.doi: 10.3969/j.issn.0255-8297.2020.04.005

• Optical Fiber Communication Technology • Previous Articles     Next Articles

Progress in Radiation-Resistant Erbium-Doped and Erbium-Ytterbium Co-doped Fibers for Space Optical Communication

SHE Shengfei1,2, MEI Lin3, ZHOU Zhenyu3, HOU Chaoqi1,2, GUO Haitao1,2   

  1. 1. State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Zhongkexin Engineering Consulting(Beijing) Co. Ltd., Beijing 100039, China
  • Received:2020-06-18 Online:2020-07-31 Published:2020-08-01

Abstract: Erbium-doped and erbium-ytterbium co-doped fiber amplifiers play an important role in space optical communication systems because of their advantages of anti-electromagnetic interference, high efficiency of electro-optic conversion, size compactness and lightness, and free debugging and maintenance. However, when exposed to the harsh radiation environment of the earth's space orbit for long time, fiber amplifiers will be affected by charged particles and high-energy electromagnetic radiation in the space. In particular, the radiation will damage gain fiber and cause the failure of optical amplification, accordingly, seriously restricting the application of fiber amplifiers in the field of space optical communication. This study first briefly introduces the phenomena and problems of space radiation-induced deterioration of fiber amplifiers, then elaborates the research progress of radiation-resistant erbium-doped and erbium ytterbium co-doped fiber on three aspects: radiation mechanism, radiation-resistant factors in fibers, and methods of radiation reinforcement, and finally prospects the future research trend of radiation-resistant fiber amplifiers.

Key words: optical communication, rare-earth doped fiber, radiation-resistance, color center, radiation induced attenuation(RIA)

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