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    • 21. 发明申请
    • METHOD AND SYSTEM FOR MULTI-LEVEL POWER MANAGEMENT OF AN OPTICAL NETWORK INCLUDING AUTOMATIC INITIALIZATION
    • 用于包括自动初始化的光网络的多级电源管理的方法和系统
    • WO03063392A3
    • 2003-10-16
    • PCT/CA0300020
    • 2003-01-10
    • TROPIC NETWORKS INC
    • NG EDDIE KAI HOWAN PING WAIREMEDIOS DERRICKBIERMAN ROBERT MICHAELNGUYEN DUNG VAN
    • H04B10/293H04B10/294H04B10/17
    • H04B10/2942H04B10/2935
    • A method and system for multi-level power management in an optical network is provided that may also perform automatic initialization of the network. The power management provides three levels of control of an amplifier in the optical network. The first level of control maintains the gain of the amplifier operating in automatic gain control (AGC) mode at a target amplifier gain. The second level of control eliminates channel gain excursion by dynamically changing the amplifier target gain so as to provide that the gain for each channel is within a gain ripple of the amplifier. The third level of control sets the target gains of amplifiers according to fiber span losses. The third level of control may also perform pre-emphasis of channel powers by changing the power of one or more channels passing through the amplifier so as to compensate for gain ripple of the amplifier. As a result, this multi-level control of the amplifiers in the network provides an increased level of optical signal to noise ratio (OSNR), protection of network components, and stabilization of channel power in the network.
    • 提供了一种用于光网络中的多级功率管理的方法和系统,其还可以执行网络的自动初始化。 电源管理为光网络中的放大器提供三个级别的控制。 第一级控制在目标放大器增益下保持运行在自动增益控制(AGC)模式下的放大器的增益。 第二级控制通过动态改变放大器目标增益来消除通道增益偏移,从而使每个通道的增益在放大器的增益纹波内。 第三级控制根据光纤跨度损耗设置放大器的目标增益。 第三级控制也可以通过改变经过放大器的一个或多个信道的功率来执行信道功率的预加重,以便补偿放大器的增益波动。 因此,网络中放大器的这种多级控制提供了更高水平的光信噪比(OSNR),网络组件的保护以及网络中信道功率的稳定。
    • 23. 发明申请
    • OPTICAL TRANSMISSION SYSTEM
    • 光传输系统
    • WO01084725A2
    • 2001-11-08
    • PCT/US2001/013944
    • 2001-05-01
    • H04B10/293H04B
    • H04B10/2931
    • An optical transmission system includes a first amplifier that tilts optical signals in a first direction, an optical loss element, over which the optical signals are transmitted, and a second amplifier that tilts the optical signals in a second direction. The first amplifier tilts the optical signals in the first direction in response to an increase in an amount of power associated with the optical signals. The second amplifier tilts the optical signals in the second direction in response to a decrease in an amount of power associated with the optical signals.
    • 光传输系统包括:第一放大器,其倾斜第一方向的光信号;光损耗元件,光信号在其上传输;以及第二放大器,其在第二方向上倾斜光信号。 响应于与光信号相关联的功率量的增加,第一放大器沿第一方向倾斜光信号。 响应于与光信号相关联的功率的减少,第二放大器在第二方向上倾斜光信号。