Method and arrangement for channel set up in an optical WDM-network

    公开(公告)号:US09621261B2

    公开(公告)日:2017-04-11

    申请号:US14410907

    申请日:2012-07-26

    IPC分类号: H04J14/02 H04B10/077

    摘要: The invention refers a method and an arrangement for channel set up in an optical network. An optical signal path is configured for a certain optical channel signal (OC1) of a WDM-signal. This channel signal (OC1) is on-off-modulated by a modulation test signal (MT1) having a predetermined lower frequency and is generating a channel test signal (OT1). This channel test signal (OT1) is combined with other optical channels (OC2-OCn) to the WDM-signal (WS) and transmitted via said path. At a start node (1) or a downstream node (3, 5) a measurement signal (EMI, EM3) is derived from the complete WDM-signal (WS) without wavelength de-multiplexing. The measurement signal (EMI, EM3) is compared with a correlation signal (MC1) and an obtained power level (PC1) is used to adjust the channel power (PC1, PC2, PC3) to achieve predetermined target power values (PC1-PC4) at different power monitoring points (19, 40, 41, 58). The adjustment step is repeated for all downstream nodes (3, 5) and all further channel signals (OC2-OCn).

    METHOD AND ARRANGEMENT FOR CHANNEL SET UP IN AN OPTICAL WDM-NETWORK
    3.
    发明申请
    METHOD AND ARRANGEMENT FOR CHANNEL SET UP IN AN OPTICAL WDM-NETWORK 有权
    在光学WDM网络中建立通道的方法和布置

    公开(公告)号:US20150256252A1

    公开(公告)日:2015-09-10

    申请号:US14410907

    申请日:2012-07-26

    IPC分类号: H04B10/077 H04J14/02

    摘要: The invention refers a method and an arrangement for channel set up in an optical network. An optical signal path is configured for a certain optical channel signal (OC1) of a WDM-signal. This channel signal (OC1) is on-off-modulated by a modulation test signal (MT1) having a predetermined lower frequency and is generating a channel test signal (OT1). This channel test signal (OT1) is combined with other optical channels (OC2-OCn) to the WDM-signal (WS) and transmitted via said path. At a start node (1) or a downstream node (3, 5) a measurement signal (EMI, EM3) is derived from the complete WDM-signal (WS) without wavelength de-multiplexing. The measurement signal (EMI, EM3) is compared with a correlation signal (MC1) and an obtained power level (PC1) is used to adjust the channel power (PC1, PC2, PC3) to achieve predetermined target power values (PC1-PC4) at different power monitoring points (19, 40, 41, 58). The adjustment step is repeated for all downstream nodes (3, 5) and all further channel signals (OC2-OCn).

    摘要翻译: 本发明涉及一种在光网络中建立通道的方法和装置。 光信号路径被配置用于WDM信号的特定光信道信号(OC1)。 该通道信号(OC1)由具有预定的较低频率的调制测试信号(MT1)进行开 - 关调制,并且正在产生通道测试信号(OT1)。 该信道测试信号(OT1)与其他光信道(OC2-OCn)组合到WDM信号(WS)并通过所述路径发送。 在起始节点(1)或下游节点(3,5)处,从波长解复用的完整WDM信号(WS)导出测量信号(EMI,EM3)。 将测量信号(EMI,EM3)与相关信号(MC1)进行比较,并且使用获得的功率电平(PC1)来调整信道功率(PC1,PC2,PC3)以实现预定的目标功率值(PC1-PC4) 在不同的电力监控点(19,40,41,58)。 所有下游节点(3,5)和所有其他信道信号(OC2-OCn)重复调整步骤。