用于降低G.657光纤氢损的氘气处理实验研究  

Experimental Study on Deuterium Gas Treatment for Reducing the Hydrogen Diffusion of G.657 Optical Fiber

作　　者：付明磊[1] 何宝 陈坤 吴仪温 张文其 刘建中 庄明杰 陆春校 FU Minglei;HE Bao;CHEN Kun;WU Yiwen;ZHANG Wenqi;LIU Jianzhong;ZHUANG Mingjie;LU Chunxiao(College of Sciences,Zhejiang University of Technology,Hangzhou 310023,China;Hangzhou Yongte Information Technology Co.,Ltd.,Hangzhou 311401,China)

机构地区：[1]浙江工业大学理学院,杭州310023 [2]杭州永特信息技术有限公司,杭州311401

出　　处：《光子学报》2021年第12期277-284,共8页Acta Photonica Sinica

基　　金：浙江省重点研发计划项目(No.2020C01083)。

摘　　要：氢损现象是导致光纤出现附加吸收损耗的重要因素。以内包层下凹型弯曲不敏感G.657光纤为实验用光纤,分析了弯曲不敏感G.657光纤结构与衰减因素,阐述了氘气消除光纤氢敏感性机理,并设计了光纤氢损实验对氘气处理配方进行了定量数据测试。通过调整氘气的浓度和处理时长两项关键参数,得到了不同实验条件下光纤的附加衰减值。对比实验结果和追踪复测结果均表明,0.9%氘气浓度和80 h氘气处理时长是适合降低弯曲不敏感G.657光纤氢损的氘气处理配方。Hydrogen diffusion is an important factor that causes additional absorption loss in optical fibers.The concave G.657 fiber with the inner cladding was chosen as the experimental fiber,and the structure and attenuation factors of the G.657 fiber were analyzed.The mechanism of deuterium gas to eliminate the hydrogen sensitivity of the fiber was explained,and the fiber hydrogen diffusion experiment was designed to carry out the deuterium gas treatment formula.By adjusting the two key parameters of deuterium concentration and processing time,the additional attenuation value of the fiber under different experimental conditions was obtained.The comparison experiment results and the tracking retest results show that 0.9%deuterium gas concentration and 80 h deuterium treatment time are suitable for reducing the hydrogen diffusion of G.657 optical fiber.

关 键 词：单模光纤 氢损 G.657 附加吸收损耗 氘气处理 弯曲损耗 

分 类 号：TN929.11[电子电信—通信与信息系统]