Single-fiber protection in telecommunications networks
    21.
    发明申请
    Single-fiber protection in telecommunications networks 有权
    电信网络单纤保护

    公开(公告)号:US20050019031A1

    公开(公告)日:2005-01-27

    申请号:US10685580

    申请日:2003-10-16

    摘要: A solution for detecting and recovering from a failure in a protected single-fiber passive optical network. A detector is used to detect the degradation in power level of optical signals. Furthermore, the invention discloses a variable symmetric split ratio approach to improve the number of splits (e.g. the number of ONUs). A single-fiber passive optical network is disclosed that uses a plurality of passive nodes connected in the optical fiber between the interfaces, wherein in the passive nodes 2-by-2 splitters/combiners are used to couple optical power from and into the optical fiber at a predetermined split ratio.

    摘要翻译: 用于检测和恢复受保护的单纤维无源光网络中的故障的解决方案。 检测器用于检测光信号功率级的劣化。 此外,本发明公开了一种可变对称分频比方法,以改善分裂数(例如,ONU的数量)。 公开了一种单纤维无源光网络,其使用在接口之间连接在光纤中的多个被动节点,其中在被动节点中,2×2分离器/组合器用于将光功率耦合到光纤中 以预定的分流比。