作　　者： (胡宗华）; (刘波）; (刘海锋）; (杨承坤）; (林世伟）;

机构地区： 光学信息技术科学教育部重点实验室天津市光电传感器与传感网络技术重点实验室南开大学现代光学研究所,天津300350

出　　处： 《光通信技术》 2017年第8期5-8,共4页

摘　　要： 开展了基于一种新型掺铒光纤的抗辐照EDFA研究。通过与单模光纤和普通掺铒光纤的辐照对比,得出该型光纤的无源传输辐照衰减率为3.24×10^(-3)dB/(krad·m),比普通掺铒光纤的辐照耐受能力高出30.6%。对比了EDFA中各关键器件的辐照敏感特性。基于该新型光纤搭建的EDFA在70krad(Si)的辐照剂量照射下增益下降0.35dB。 A study on radiation-hard EDFA based on a novel erbium-doped fiber was carried out. The experimental results show that the passive-transmission decay rate of the optical fiber under radiation environment is 3.24 ×10^-3 dB/ （krad.m）, which is 30.6% larger than that of the conventional erbium-doped fibers. The radia- tion sensitivity properties of the key devices in EDFA was compared. The EDFA based on the proposed novel fiber structure exhibits a limited decrease by 0.35dB up to total dose of 70krad （Si） under the 60Co radiation.

关 键 词： 光纤放大器 辐射 掺铒光纤 射线 抗辐照