Processing of optical performance data in an optical wavelength division multiplexed communication system
    1.
    发明授权
    Processing of optical performance data in an optical wavelength division multiplexed communication system 有权
    光波分复用通信系统中光学性能数据的处理

    公开(公告)号:US07231145B2

    公开(公告)日:2007-06-12

    申请号:US09897948

    申请日:2001-07-05

    IPC分类号: H04B10/08

    摘要: Optical performance measurements are taken in an optical network and displayed in a form that allows an operator to enter fault information related to the measurements, or to automatically generate fault alarms to the operator, based on processing of the measurements. The optical measurements may be individual power measurements taken for each light-path at various points in each node it traverses, such as amplifiers, multiplexers/demultiplexers or at an interface with another node.

    摘要翻译: 光学性能测量在光学网络中进行,并且以允许操作者输入与测量相关的故障信息的形式显示,或者基于测量的处理自动地向操作者生成故障报警。 光学测量可以是针对每个光通路在每个光通路中通过的各个节点进行单独的功率测量,例如放大器,多路复用器/解复用器或与另一个节点的接口。

    Processing of optical performance data in an optical wavelength division multiplexed communication system
    2.
    发明授权
    Processing of optical performance data in an optical wavelength division multiplexed communication system 有权
    光波分复用通信系统中光学性能数据的处理

    公开(公告)号:US07865078B2

    公开(公告)日:2011-01-04

    申请号:US11747636

    申请日:2007-05-11

    IPC分类号: H04B10/08

    摘要: Optical performance measurements are taken in an optical network and displayed in a form that allows an operator to enter fault information related to the measurements, or to automatically generate fault alarms to the operator, based on processing of the measurements. The optical measurements may be individual power measurements taken for each light-path at various points in each node it traverses, such as amplifiers, multiplexers/demultiplexers or at an interface with another node.

    摘要翻译: 光学性能测量在光学网络中进行,并且以允许操作者输入与测量相关的故障信息的形式显示,或者基于测量的处理自动地向操作者生成故障报警。 光学测量可以是针对每个光通路在每个光通路中通过的各个节点进行单独的功率测量,例如放大器,多路复用器/解复用器或与另一个节点的接口。

    1:N protection in an optical terminal
    3.
    发明授权
    1:N protection in an optical terminal 有权
    1:光端口的N保护

    公开(公告)号:US07613392B2

    公开(公告)日:2009-11-03

    申请号:US11497390

    申请日:2006-08-02

    申请人: Ornan A. Gerstel

    发明人: Ornan A. Gerstel

    IPC分类号: H04B10/00

    摘要: A communication network comprising at least one first terminal, at least one second terminal, a plurality of links, and at least first and second nodes. The first node is bidirectionally coupled to the first terminal through at least a first one of the links, and also is bidirectionally coupled to the second terminal through at least a second link and the second node. Preferably, the first node comprises a plurality of communication paths, each of which is coupled at a first end thereof to at least one corresponding first link. Second ends of the communication paths are all coupled to the second link, through a multiplexing device, and route signals between the first and second links. The first node also preferably comprises at least one alternate communication path having a first end coupled through the multiplexing device to the second link, at least one switch that is coupled to the alternate communication path, and a detector for detecting a failure in at least one of the communication paths. A controller is coupled to the detector and the switch. The controller is responsive to the detector detecting a failure in at least one of the communication paths for controlling the switch to couple the alternate communication path to a corresponding first link, thereby enabling a signal to be routed between that first link and the second link through the alternate communication path.

    摘要翻译: 一种通信网络,包括至少一个第一终端,至少一个第二终端,多个链路以及至少第一和第二节点。 第一节点通过至少第一个链路双向耦合到第一终端,并且还通过至少第二链路和第二节点双向耦合到第二终端。 优选地,第一节点包括多个通信路径,每个通信路径在其第一端耦合到至少一个对应的第一链路。 通信路径的第二端都通过多路复用装置耦合到第二链路,并且在第一和第二链路之间路由信号。 第一节点还优选地包括至少一个备选通信路径,其具有通过多路复用装置耦合到第二链路的第一端,耦合到备选通信路径的至少一个开关,以及用于检测至少一个 的通信路径。 控制器耦合到检测器和开关。 控制器响应于检测器检测至少一个通信路径中的故障,用于控制交换机将备用通信路径耦合到对应的第一链路,从而使信号能够在该第一链路和第二链路之间通过 备用通信路径。

    1:N protection in an optical terminal
    4.
    发明授权
    1:N protection in an optical terminal 有权
    1:光端口的N保护

    公开(公告)号:US07099578B1

    公开(公告)日:2006-08-29

    申请号:US09464077

    申请日:1999-12-16

    申请人: Ornan A. Gerstel

    发明人: Ornan A. Gerstel

    IPC分类号: H04B10/00

    摘要: A communication network includes first and second terminals, nodes, and links. The first node is coupled to the first terminal through the first link, and coupled to the second terminal through the second link and the second node. The first node preferably includes communication paths, each coupled to one corresponding first link and to the second link, through a multiplexing device, and routing signals between the links. The first node also preferably includes an alternate communication path coupled through the multiplexing device to the second link, a switch coupled to the alternate path, and a detector detecting failure of a communication path. A controller is responsive to the detector detecting a failure in a communication path and controls the switch to couple the alternate path to a corresponding first link, thereby enabling a signal to be routed between that first and second links through the alternate path.

    摘要翻译: 通信网络包括第一和第二终端,节点和链路。 第一节点通过第一链路耦合到第一终端,并通过第二链路和第二节点耦合到第二终端。 第一节点优选地包括通信路径,每个通信路径通过多路复用装置耦合到一个对应的第一链路和第二链路,以及在链路之间路由信号。 第一节点还优选地包括通过复用设备耦合到第二链路的替代通信路径,耦合到替代路径的开关以及检测通信路径的故障的检测器。 控制器响应于检测器检测到通信路径中的故障,并且控制开关将备选路径耦合到对应的第一链路,从而使信号能够在该第一和第二链路之间通过备用路径路由。

    Methods and apparatus for optical network management using pilot tones
    5.
    发明授权
    Methods and apparatus for optical network management using pilot tones 失效
    使用导频音进行光网络管理的方法和装置

    公开(公告)号:US07016607B1

    公开(公告)日:2006-03-21

    申请号:US09460214

    申请日:1999-12-13

    IPC分类号: H04B10/00

    摘要: Methods and apparatus for managing static and dynamic optical network configurations to enable mapping an actual optical network or validating an expected optical network are provided. In one embodiment a validation method includes the step of selecting an optical path having a plurality of nodes from a database defining an expected optical network. A list of detected pilot tones from each node associated with the selected optical path is generated. An expected list of pilot tones associated with each node of the selected optical path is generated. Comparison of the expected and detected lists identifies any mismatched nodes. Another method includes the step of setting a first pilot tone source to have a first pilot tone value. All other network pilot tone sources are set to have another pilot tone value. An optical path associated with the first pilot tone source is then mapped by identifying each node of the network having the first pilot tone value. Extraneous information can be applied to provide greater assurances as to likelihood of possible actual optical paths during the mapping process. Methods of re-configuring network pilot tone sources to preserve mapping and validation abilities when adding nodes, adding optical paths, or even adding another network to a pre-existing network are also provided.

    摘要翻译: 提供了用于管理静态和动态光网络配置以实现映射实际光网络或验证预期光网络的方法和装置。 在一个实施例中,验证方法包括从定义预期光网络的数据库中选择具有多个节点的光路的步骤。 产生与所选光路相关联的每个节点的检测到的导频音调的列表。 生成与所选光路的每个节点相关联的导频音调的预期列表。 预期和检测到的列表的比较识别任何不匹配的节点。 另一种方法包括将第一导频音源设置为具有第一导频音值的步骤。 所有其他网络导频音源设置为具有另一个导频音调值。 然后通过识别具有第一导频音调值的网络的每个节点来映射与第一导频音源相关联的光路。 可以应用外部信息,以便在映射过程中对可能的实际光路的可能性提供更大的保证。 还提供了重新配置网络导频音源以在添加节点,添加光路或甚至向现有网络添加另一网络时的映射和验证能力的方法。

    Optical ring protection apparatus and methods
    6.
    发明授权
    Optical ring protection apparatus and methods 有权
    光环保护装置及方法

    公开(公告)号:US06898376B1

    公开(公告)日:2005-05-24

    申请号:US09459947

    申请日:1999-12-14

    摘要: An optical communication system comprising plural optical communication paths, a passive optical coupler, and at least one optical node. The passive optical coupler has a plurality of inputs coupled through the passive optical coupler to an output of the passive optical coupler, and each input is coupled in a corresponding one of the optical communication paths. Each optical node comprises plural optical line terminals, each of which is interposed in a corresponding at least one of the optical communication paths. Each optical line terminal is operable to either (a) substantially prevent an optical signal propagating in that corresponding at least one optical communication path from reaching a corresponding input of the passive optical coupler through the at least one optical communication path, or (b) permit the optical signal to propagate in that corresponding at least one optical communication path towards the corresponding input of the passive optical coupler.

    摘要翻译: 一种包括多个光通信路径,无源光耦合器和至少一个光节点的光通信系统。 无源光耦合器具有通过无源光耦合器耦合到无源光耦合器的输出的多个输入,并且每个输入耦合在相应的一个光通信路径中。 每个光节点包括多个光线路终端,每个光线路终端插入相应的至少一个光通信路径中。 每个光线路终端可操作以(a)基本上防止在该对应的至少一个光通信路径中传播的光信号通过至少一个光通信路径到达无源光耦合器的对应输入,或(b)允许 光信号在相应的至少一个光通信路径中传播到无源光耦合器的对应输入端。

    Optical line terminal arrangement, apparatus and methods

    公开(公告)号:US06721508B1

    公开(公告)日:2004-04-13

    申请号:US09293775

    申请日:1999-04-19

    IPC分类号: H04J1402

    摘要: A wavelength division multiplexed optical communication system includes a plurality of optical line terminals which may be part of separate in service networks, each having a line interface and an all-optical pass-through interface including a plurality of pass-through optical ports, and each also including a plurality of local optical ports which are connectable to client equipment and an optical multiplexer/demultiplexer for multiplexing/demultiplexing optical wavelengths. The optical multiplexer/demultiplexer may include one or more stages for inputting/outputting individual wavelengths or bands of a predetermined number of wavelengths, or a combination of bands and individual wavelengths. At least one of the pass-through optical ports of an optical line terminal of one network may be connected to at least one of the pass-through optical ports of an optical line terminal of another network to form an optical path from the line interface of the optical line terminal of the one network to the line interface of the optical line terminal of the another network to form a merged network. The use of such optical line terminals allows the upgrading and merging of the separate networks while in service.

    Strictly non-blocking optical switch core having optimized switching
    9.
    发明授权
    Strictly non-blocking optical switch core having optimized switching 失效
    严格的非阻塞光开关核心具有优化的切换

    公开(公告)号:US06785438B2

    公开(公告)日:2004-08-31

    申请号:US10353425

    申请日:2003-01-29

    IPC分类号: G02B635

    摘要: A switch core is set forth that comprises a plurality of duplex switches that are interconnected with a interconnection fabric to implement, for example, strictly non-blocking operation of the switch core for reciprocal traffic. In one embodiment, an N-way reciprocal switch is implemented. The N-way reciprocal switch comprises a plurality of duplex switches numbering N of at least a 1×(N−1) switch type (e.g., the duplex switches have at least N−1 ports available for connection to implement the interconnection fabric). The interconnection fabric interconnects the plurality of duplex switches so that each duplex switch is connected to every other duplex switch used in the interconnection fabric by a single connection. A similar architecture using switches numbering N of at least a 1×N switch type are also set forth.

    摘要翻译: 提出了一种交换机核心,其包括与互连结构互连的多个双工交换机,以实现用于交互业务的交换机核心的严格无阻塞操作。 在一个实施例中,实现了N路互逆开关。 N路互换交换机包括编号为至少1x(N-1)交换机类型的多个双工交换机(例如,双工交换机具有至少可用于连接的N-1个端口以实现互连结构)。 互连结构互连多个双工交换机,使得每个双工交换机通过单个连接连接到互连结构中使用的每个其他双工交换机。 还阐述了使用编号为至少1xN交换机类型的交换机的类似架构。

    Strictly non-blocking switch core having optimized switching architecture based on reciprocity conditions

    公开(公告)号:US06591028B2

    公开(公告)日:2003-07-08

    申请号:US10003127

    申请日:2001-11-02

    IPC分类号: G02B635

    摘要: A switch core is set forth that comprises a plurality of duplex switches that are interconnected with a interconnection fabric to implement, for example, strictly non-blocking operation of the switch core for reciprocal traffic. In one embodiment, an N-way reciprocal switch is implemented. The N-way reciprocal switch comprises a plurality of duplex switches numbering N of at least a 1×(N−1) switch type (e.g., the duplex switches have at least N−1 ports available for connection to implement the interconnection fabric). The interconnection fabric interconnects the plurality of duplex switches so that each duplex switch is connected to every other duplex switch used in the interconnection fabric by a single connection. A similar architecture using switches numbering N of at least a 1×N switch type are also set forth. Still further, a plurality of duplex switches are used to implement an (n, m)-way switch that, in turn, can be used to construct a recursive LM-way switch core and/or recursively expand an existing Clos switch core.