空间用铈/铒共掺光纤抗辐照特性研究  

Study on Radiation-Resistant Characteristics of Cerium/Erbium Co-doped Optical Fiber for Space Applications

作　　者：王朴朴 贾明 田云云 杨依伦 顾劭忆[1] WANG Pupu;JIA Ming;TIAN Yunyun;YANG Yilun;GU Shaoyi(The 23rd Research Institute,CETC,Shanghai 201900,China)

机构地区：[1]中国电子科技集团公司第二十三研究所,上海201900

出　　处：《光纤与电缆及其应用技术》2023年第6期11-13,42,共4页Optical Fiber & Electric Cable and Their Applications

摘　　要：为了研究掺铒光纤抗辐照性能,采用改进的化学气相沉积法(MCVD)结合液相掺杂工艺制备相同铒离子掺杂浓度的掺铒光纤和铈/铒共掺光纤并进行500 Gy、1000 Gy剂量的γ射线辐照试验,对两种光纤辐照前后损耗谱、自发辐射光谱展开对比分析。试验结果显示,经过1000 Gy剂量辐照后,相比掺铒光纤,铈/铒共掺光纤辐照后1200 nm波长下本底损耗仅为31.8 dB/km,降低73.2%,同时自发辐射光谱峰值强度增强12.8 dB,提升明显。由此表明共掺铈可改善掺铒光纤抗辐照性能,对其在空间光通信领域应用能力的提升具有重要意义。In order to study the radiation-resistance of erbium-doped fibers,a modified chemical vapor deposition(MCVD)combined with the solution doping method is used to prepare the erbium-doped fiber and cerium/erbium co-doped fiber with the same erbium ion doping concentration,and the doses of 500 Gy and 1000 Gyγ-ray irradiation tests are performed.The loss spectra and spontaneous radiation spectra of two types of optical fibers before and after irradiation are comparative analyzed.The test results show that after irradiation with a dose of 1000 Gy,compared to erbium-doped fiber,the background loss of the cerium/erbium co-doped fiber is only 31.8 dB/km@1200 nm,a decrease of 73.2%,while the peak intensity of the spontaneous radiation spectrum is enhanced by 12.8 dB,indicating a significant improvement.This indicates that co-doping cerium can improve the radiation-resistance of erbium-doped fibers,which is of great significance for enhancing their application ability in the field of space optical communication.

关 键 词：掺铒光纤 铈/铒共掺光纤 抗辐照 本底损耗 自发辐射光谱 

分 类 号：TN818[电子电信—信息与通信工程]