公开(公告)号：US20150016819A1

公开(公告)日：2015-01-15

申请号：US13937613

申请日：2013-07-09

Applicant: Cisco Technology, Inc.

Inventor： Stefano Piciaccia ,  Rosanna Pastorelli ,  Mauro Brunella

IPC: H04B10/079

CPC classification number: H04B10/0793 ,  H04B10/0797 ,  H04B10/2935

Abstract: Techniques are presented for automatic tuning of operating parameters, e.g., amplifier gain, in an optical network. A section of an optical network comprises a plurality of spans between optical nodes, and each optical node has an amplifier to amplify optical signals for transmission between optical nodes. Physical network layer data is obtained from the optical nodes for use as input to an analytical model. A set of powers defining an optimum working point of the amplifiers is computed based on variations in amplifier noise figure which depend on amplifier gain. A figure of merit representative of network section performance is computed based on linear and non-linear noise at current power levels of the amplifiers. The figure of merit is evaluated. The set of powers is applied to the amplifiers in the network section when evaluation of the figure of merit indicates that network performance improvement can be achieved.

Abstract translation: 提出了用于在光网络中自动调整操作参数（例如，放大器增益）的技术。 光网络的一部分包括光节点之间的多个跨距，并且每个光节点具有放大器以放大用于在光节点之间传输的光信号。 物理网络层数据从光学节点获得，用作分析模型的输入。 基于取决于放大器增益的放大器噪声系数的变化来计算定义放大器的最佳工作点的一组功率。 基于放大器的当前功率电平的线性和非线性噪声来计算代表网络部分性能的品质因数。 评估品质因数。 当评估品质因数表示可以实现网络性能改善时，该功率集合被应用于网络部分中的放大器。