光缆架空对模拟信号传输性能的影响  

Effect of optical cable overhead on analog signal transmission performance

作　　者：熊慎伟[1] 陈国帅[2] XIONG Shenwei;CHEN Guoshuai(The 14th Research Institute of CETC,Nanjing 210039,China;The 34th Research Institute of CETC,Guilin Guangxi 541004,China)

机构地区：[1]中国电子科技集团公司第十四研究所,南京210039 [2]中国电子科技集团公司第三十四研究所,广西桂林541004

出　　处：《光通信技术》2019年第4期38-41,共4页Optical Communication Technology

摘　　要：在模拟信号光传输过程中,光缆架空后因光缆晃动和温度变化会造成相位噪声和多路相位稳定性指标的劣化。理论分析了光缆晃动对传输信号相噪劣化的原理,并通过实验得到相噪劣化的测试数据,计算分析了温度变化对多路信号光纤传输后相位稳定性和一致性的影响,可以认为在模拟信号光传输时采用直埋方式铺设光缆是最为可靠的方案。In the process of analog signal optical transmission, the phase noise and multi-channel phase stability will be deteriorated due to the oscillation and temperature change of the optical cable overhead. The principle of phase noise degradation of transmission signal caused by optical cable shaking is analyzed theoretically, and the test data of phase noise degradation are obtained by experiment. The influence of temperature variation on phase stability and consistency of muti-channel signal optical fiber transmission is calculated and analyzed. It can be considered that laying optical cables directly buried in analog signal optical transmission is the most reliable scheme.

关 键 词：模拟信号光传输 光缆架空 相位噪声 多路相位稳定性 

分 类 号：TN91[电子电信—通信与信息系统]