面向太空环境应用的抗辐照有源光纤特性研究  

Study on Characteristics of Irradiation-Resistant Active Optical Fiber for Space Applications

作　　者：李凌乐 陈子睿 文建湘[1] 董艳华[1] 王廷云[1] LI Lingyue;CHEN Zirui;WEN Jianxiang;DONG Yanhua;WANG Tingyun(Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication,Shanghai Institute for Advanced Communication and Data Science,Shanghai University,Shanghai 200444)

机构地区：[1]上海大学特种光纤与光接入网省部共建国家重点实验室培育基地/特种光纤与先进通信国际合作联合实验室,上海先进通信与数据科学研究院,上海200444

出　　处：《飞控与探测》2022年第3期58-62,共5页Flight Control & Detection

基　　金：国家自然科学基金重点项目(61935002,61635006)。

摘　　要：针对太空恶劣辐射环境会造成光器件的光学性能下降或失效的问题,利用改良化学气相沉积法(MCVD)结合原子层沉积(ALD)掺杂技术制备铋铒共掺光纤(BEDF)和掺铒光纤(EDF),经不同辐照剂量的伽马射线处理后,对它们的光谱特性进行对比研究。光纤样品分别经0.3kGy、0.5kGy、0.8kGy和1.5kGy辐照处理,对比光谱发现BEDF的辐照诱导损耗(RIA)的增幅明显低于EDF,特别是经1.5kGy的辐照处理后,EDF的RIA比BEDF高1.93dB/m。EDF的荧光强度随辐照剂量的增加而降低,且低于未辐照前的荧光强度;而对于BEDF而言,其荧光强度随辐照剂量的增加先增加后减弱,且均高于未辐照的荧光强度。实验结果表明,BEDF具有一定抗辐照特性,对应用于太空环境具有重要研究意义。Aiming at the problem that the bad radiation environment in space will cause the optical performance of optical devices to decrease or fail.Bismuth erbium-doped co-doped fiber(BEDF)was fabricated by modified chemical vapor deposition(MCVD)and atomic layer deposition(ALD)doping technique.The spectral characteristics of BEDF and EDF were compared by gamma ray treatment with different irradiation doses.The optical fiber samples were irradiated by 0.3kGy,0.5kGy,0.8kGy and 1.5kGy respectively,and the comparison spectra showed that the increase of irradiation induced loss(RIA)of BEDF was significantly lower than that of EDF,especially after 1.5kGy irradiation,the RIA of EDF is 1.93dB/m higher than that of BEDF.The fluorescence intensity of EDF decreases with the increase of the irradiation dose and is lower than that before the irradiation,while for BEDF,the fluorescence intensity increases first and then decreases with the increase of the irradiation dose,and is higher than that of the unirradiated.The experimental results show that BEDF has certain anti-irradiation characteristics,which has important research significance in space environment.

关 键 词：掺铒光纤(EDF) 铋铒共掺光纤(BEDF) 伽马射线辐照 荧光增强 辐致衰减(RIA) 

分 类 号：TN911.73[电子电信—通信与信息系统] TP391.9[电子电信—信息与通信工程]