• Study On Optical Communications
  • Vol. 51, Issue 2, 240046-01 (2025)
Author Affiliations
  • Institute of Technology and Standards, China Academy of Information and Communications Technology (CAICT), Beijing 100191, China
  • show less
    Schematic of 4 typical distributed fiber optic sensing systems based on Rayleigh scattering
    Fig. 1. Schematic of 4 typical distributed fiber optic sensing systems based on Rayleigh scattering
    Schematic of typical ROTDR/DTS systems
    Fig. 2. Schematic of typical ROTDR/DTS systems
    Schematic of typical BOTDR systems
    Fig. 3. Schematic of typical BOTDR systems
    Schematic diagram of two basic ways of integrating communication and sensing systems
    Fig. 4. Schematic diagram of two basic ways of integrating communication and sensing systems
    Schematic diagram of integrating sensing and communication systems based on WDM
    Fig. 5. Schematic diagram of integrating sensing and communication systems based on WDM
    散射类型典型系统光学参量传感参量技术特点
    瑞利散射OTDR强度光纤长度、衰减结构简单,技术成熟
    P-OTDR偏振振动、偏振模色散灵敏度高,但信噪比较低
    Φ-OTDR相位振动、应变灵敏度高,易受无关噪声干扰
    OFDR频率插损、回波损耗等空间分辨率高,但系统复杂
    拉曼散射ROTDR/DTS强度温度相干检测,响应度较低,需时间平均
    布里渊散射BOTDR/DTSS频移温度、应变相干检测,可同时解调双参量
    BOTDA频移温度、应变传感距离长,但系统复杂
    Table 1. Summary of typical distributed fiber optic sensing technologies and their characteristics
    发布时间发布/研究单位项目/标准/课题名称
    2022ITU-T SG15 Q8G. dsssc专用科学观测海缆系统
    2022ITU-T SG15 Q8G. smart科学观测和可靠通信海缆系统
    2022ITU-T SG15 Q6G. dfos用于地面光传输系统的分布式光纤传感系统
    2022.04华为技术有限公司F5.5G
    2023科学技术部高速光纤通信传感一体化系统与关键技术
    2023科学技术部面向海底应用的大容量光通信与海洋信息感知一体化融合系统
    2023.02CCSA研究课题《面向分布式光纤传感的光纤光缆技术研究》
    2023.09IMT-2020(5G)推进组《面向通感算一体化光网络的光纤传感技术》白皮书
    2023.12CCSA行业标准《通信传感一体用窄线宽集成激光器组件》
    2023.11CCSA讨论研究课题《通信传感一体用光器件研究》立项
    2023.12CCSA推荐国标《光纤光缆线路维护技术第3部分:基于光传感技术的光缆识别》
    2023.12CCSA讨论研究课题《通感一体化光网络架构及关键技术》立项
    Table 2. Research progress on integration of sensing and communication for optical networks