OTDR单向熔接损耗对传输的影响  

Impact of OTDR Unidirectional Welding Loss on Transmissions

作　　者：郭冬奎 GUO Dongkui(China Mobile Communications Group Fujian Co.,Ltd.,Fuzhou 350108,China)

机构地区：[1]中国移动通信集团福建有限公司,福建福州350108

出　　处：《移动通信》2019年第1期74-78,84,共6页Mobile Communications

摘　　要：在实际光缆施工熔接过程中,施工方通常使用OTDR测试光纤熔接损耗和链路损耗,由于部分施工人员对熔接损耗测量标准理解不到位或使用习惯等,会采用OTDR单向测得的损耗结果作为熔接损耗的判断标准,通过理论分析、单熔接点测试实验、光纤链路测试实验、实际在用传输系统验证,证明OTDR单向损耗与真实熔接损耗没有必然联系,OTDR单向"大正大负"对实际链路损耗没有影响。In the actual welding process of optical cable construction,the construction party usually uses OTDR to test the fi ber splice loss and power loss of cable link.Because of some constructors’misunderstanding and using habit to the welding loss measurement standard,the OTDR one-way measured loss result would be used as the criterion for the determination of the splice loss.Through theoretical theory analysis,fusion joint test experiment,fi ber link test experiment,and actual transmission system verifi cation,it proves that OTDR unidirectional loss is not necessarily related to the real fi ber splice loss.OTDR unidirectional“big positive and negative”has no effect on the actual link loss.

关 键 词：OTDR 光源功率计 熔接损耗 单向损耗 大正大负 

分 类 号：TN929.5[电子电信—通信与信息系统]