小直径大模场抗弯结构设计光纤的性能研究  

Research on the Small-size Single Mode Super Bending Insensitive Optical Fibers

作　　者：曹珊珊[1,2] 王震 徐海涛 郭朝阳 油光磊 刘志忠 武宇 李伟华 邓黎 韦玮 CAO Shanshan;WANG Zhen;XU Haitao;GUO Chaoyang;YOU Guanglei;LIU Zhizhong;WU Yu;LI Weihua;DENG Li;WEI Wei(College of Electronic and Optical Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;Zhongtian Technology Fiber Optics Co.,Ltd.,Nantong 226009,China;Zhongtian Technology Submarine Cable Co.,Ltd.,Nantong 226010,China;State Grid Information&Telecommunication Branch,Beijing 100761,China)

机构地区：[1]南京邮电大学电子与光学工程学院,江苏南京210046 [2]中天科技光纤有限公司,江苏南通226009 [3]中天科技海缆有限公司,江苏南通226010 [4]国家电网有限公司信息通信分公司,北京100761

出　　处：《电力信息与通信技术》2019年第8期42-49,共8页Electric Power Information and Communication Technology

基　　金：国家电网有限公司总部科技项目资助“面向全球能源互联的耐极寒、超低损OPGW关键技术研究”（SGXT0000XGJS1700049）

摘　　要：随着FTTH的快速发展,管道资源的日趋紧缺,光缆向小直径、高密度方向发展。在电力光缆应用领域,可以通过减小光纤直径达到增加OPGW光纤余长的目的,以应对低温重覆冰等现象引起的OPGW受力伸长。通过对光纤结构设计和拉丝工艺的调整优化,制备出模场直径(Mode Field Diameter,MFD)与G.652D兼容匹配的小直径(Φ190μm)抗弯曲单模光纤,实现同样前提下光缆直径减小30%。在OPGW成缆试验中,各项性能全部满足标准要求,实现了在保证光纤衰减不变的前提下进一步增加光纤余长的目的。With the rapid development of FTTH and the shortage of pipeline resources,optical cable develops in the direction of small diameter and high density.In the field of power optical cable application,the residual length of OPGW fiber can be increased by reducing the diameter of optical fiber,so as to deal with the stress extension of OPGW caused by low temperature icing and so on.By optimization of the optical fiber preform and optimization of the fiber drawing process,a small sized(Φ190μm)super single mode fiber with stable geometric dimensions is prepared.The cable is fabricated with this fiber and the test results show that the performance of this fiber is almost the same with G.652D fiber,but can reduce the space by 30%.In the OPGW,all the performances meet the standard requirements,and the purpose of further increasing the fiber excess length is achieved under the premise of ensuring the fiber attenuation is unchanged.

关 键 词：小直径光纤 模场直径 弯曲损耗 光纤余长 

分 类 号：TN818[电子电信—信息与通信工程]