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

    CPC classification number: H04B10/0775 H04J14/02 H04J14/0221

    Abstract: 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 IN SERVICE RAMAN GAIN MEASUREMENT AND MONITORING
    2.
    发明申请
    METHOD AND ARRANGEMENT FOR IN SERVICE RAMAN GAIN MEASUREMENT AND MONITORING 有权
    服务拉曼增益测量和监测的方法和布置

    公开(公告)号:US20120177366A1

    公开(公告)日:2012-07-12

    申请号:US13392654

    申请日:2009-08-25

    Applicant: Benoit Clouet

    Inventor: Benoit Clouet

    CPC classification number: H04B10/0777 H04B10/2916 H04B2210/078

    Abstract: The invention refers a method and an arrangement for in service Raman gain measurements and monitoring of a wavelength division multiplex system. By measuring the power level values of a transmitted WDM signal (WMS_TX) and an optical supervisory signal (OSS_TX) at the transmitter and the power level values of the received signals (WMS_RX; OSS_RX) the Raman gain can be calculated for the different channels.

    Abstract translation: 本发明涉及用于在线拉曼增益测量和波分复用系统的监视的方法和装置。 通过测量发射机发射的WDM信号(WMS_TX)和光监控信号(OSS_TX)的功率电平值和接收信号(WMS_RX; OSS_RX)的功率电平值,可以为不同的信道计算拉曼增益。

    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

    CPC classification number: H04B10/0775 H04J14/02 H04J14/0221

    Abstract: 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).

    Abstract translation: 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。

    Method and arrangement for in service Raman gain measurement and monitoring
    4.
    发明授权
    Method and arrangement for in service Raman gain measurement and monitoring 有权
    用于拉曼增益测量和监测的方法和布置

    公开(公告)号:US08768165B2

    公开(公告)日:2014-07-01

    申请号:US13392654

    申请日:2009-08-25

    Applicant: Benoit Clouet

    Inventor: Benoit Clouet

    CPC classification number: H04B10/0777 H04B10/2916 H04B2210/078

    Abstract: The invention refers a method and an arrangement for in service Raman gain measurements and monitoring of a wavelength division multiplex system. By measuring the power level values of a transmitted WDM signal (WMS_TX) and an optical supervisory signal (OSS_TX) at the transmitter and the power level values of the received signals (WMS_RX; OSS_RX) the Raman gain can be calculated for the different channels.

    Abstract translation: 本发明涉及用于在线拉曼增益测量和波分复用系统的监视的方法和装置。 通过测量发射机发射的WDM信号(WMS_TX)和光监控信号(OSS_TX)的功率电平值和接收信号(WMS_RX; OSS_RX)的功率电平值,可以为不同的信道计算拉曼增益。

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