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    • 4. 发明申请
    • DIRECTIONLESS WAVELENGTH ADDITION/SUBTRACTION USING ROADM
    • 使用道路的无方向波长增加/偏移
    • WO2009091525A1
    • 2009-07-23
    • PCT/US2009/000193
    • 2009-01-13
    • TELLABS OPERATIONS, INC.BODUCH, Mark, E.PAPAKOS, Kimon
    • BODUCH, Mark, E.PAPAKOS, Kimon
    • H04J14/02
    • H04J14/0221H04J14/0204H04J14/0205H04J14/0206H04J14/0208H04J14/021H04J14/0212H04J14/0217H04J14/0219H04J14/0284H04J14/0295
    • In today's reconfigurable optical add/drop multiplexer (ROADM) based optical node, transponders associated with the ROADMs' add/drop ports are dedicated to a given network node interface. Dedicated transponders reduce the flexibility to route around network failures. Example embodiments of the invention includes an optical node and corresponding method for routing optical signals within an optical node. The optical node may include at least two ROADMs to transmit respective wavelength division multiplexed (WDM) signals onto at least two inter-node network paths and at least one add/drop module including add ports to direct add wavelengths received from tributary network paths to each of the ROADMs via intra-node network paths to allow the wavelengths to be available to be added to the inter-node network paths. Advantageously, a transponder may transmit and receive to and from different network node interfaces within the optical node, thereby improving the optical node's ability to route around network failures.
    • 在当今可重配置的光分插复用器(ROADM)的光节点中,与ROADM的加/减端口相关的转发器专用于给定的网络节点接口。 专用的转发器降低了围绕网络故障的灵活性。 本发明的示例实施例包括用于在光节点内路由光信号的光节点和相应方法。 光节点可以包括至少两个ROADM,以将相应的波分多路复用(WDM)信号发送到至少两个节点间网络路径上,并且至少一个添加/分出模块包括添加端口,以将从支路网络路径接收的附加波长引导到每个 的ROADM通过节点内网络路径来允许波长可用于添加到节点间网络路径。 有利地,应答器可以发送和接收光节点内的不同网络节点接口,从而提高光节点绕网络故障的路由能力。
    • 5. 发明申请
    • FIBER SPAN LOSS AND DISPERSION MEASUREMENTS
    • 纤维间隙损失和分散度测量
    • WO2009070187A1
    • 2009-06-04
    • PCT/US2008/009156
    • 2008-07-29
    • TELLABS OPERATIONS, INC.BODUCH, Mark, E.PAPAKOS, KimonLARIKOVA, Julia, Y.
    • BODUCH, Mark, E.PAPAKOS, KimonLARIKOVA, Julia, Y.
    • H04B10/08
    • H04B10/0775
    • An example embodiment of the invention includes a method and apparatus for supporting fiber span loss and dispersion measurements in the presence or absence of dispersion compensation elements (DCE). The technique may be used to configure a network link by accessing an optical signal at an ingress side of a connection point for a DCE coupling an egress side of a fiber span at the ingress side of the DCE to an optical amplifier at a connection point for an egress side of the DCE. The technique may include determining chromatic dispersion of the fiber span based on the optical signal and reporting information associated with chromatic dispersion. As a result, the technique may be used, for example, during initial system installation when user data signals and the DCE are not present as well as after the network begins carrying user traffic and after a DCE has been installed.
    • 本发明的一个示例性实施例包括一种在存在或不存在色散补偿元件(DCE)的情况下支持光纤跨度损耗和色散测量的方法和装置。 该技术可以用于通过访问DCE连接点的连接点的入口侧的光信号来配置网络链路,DCE将DCE的入口侧的光纤跨度的出口侧耦合到光放大器的连接点处, DCE的出口端。 该技术可以包括基于光信号和与色散相关联的报告信息来确定光纤跨度的色散。 结果,例如,当用户数据信号和DCE不存在以及在网络开始承载用户业务之后并且在DCE已经被安装之后,例如在初始系统安装期间可以使用该技术。