High Loss Loop Back For Long Repeater Span
    9.
    发明申请
    High Loss Loop Back For Long Repeater Span 有权
    高损耗回路用于长中继器跨度

    公开(公告)号:US20090324249A1

    公开(公告)日:2009-12-31

    申请号:US12146811

    申请日:2008-06-26

    申请人: Hongbin Zhang

    发明人: Hongbin Zhang

    IPC分类号: H04B10/00

    CPC分类号: H04B10/071 H04B10/035

    摘要: Various high loss loop back (HLLB) repeater architectures are disclosed that enable selectively monitoring (e.g., measuring, analyzing, etc) of Rayleigh signals from both inbound and outbound directions of an optical communication system. In one such embodiment, first and second optical test signal frequencies (or ranges) are used, in conjunction with selective filtering, for monitoring the outbound and inbound paths, respectively. The repeater architectures allow optical time domain reflectometry (OTDR) monitoring techniques to be employed, for example, in particularly long repeater spans, such as those in excess of 90 km in length.

    摘要翻译: 公开了各种高损耗环回(HLLB)中继器架构,其能够从光通信系统的入站和出站方向选择性地监视(例如,测量,分析等等)瑞利信号。 在一个这样的实施例中,第一和第二光学测试信号频率(或范围)结合选择性过滤被分别用于监视出站和入站路径。 中继器架构允许采用光时域反射测量(OTDR)监测技术,例如,在特别长的中继器跨度(例如长度超过90km的那些)中。