Two-fiber interconnected ring architecture
    1.
    发明授权
    Two-fiber interconnected ring architecture 失效
    双纤互联环架构

    公开(公告)号:US06616349B1

    公开(公告)日:2003-09-09

    申请号:US09467748

    申请日:1999-12-20

    IPC分类号: H04B1000

    摘要: A two-fiber ring architecture capable of carrying multiple wavelength channels and allowing client self-healing of single point failures. The ring architecture includes a two-fiber optical ring carrying at least one wavelength channel, wherein the wavelength channel has working traffic and protection traffic. The optical ring can include a single ring, two interconnected rings, or multiple interconnected rings. Specifically, the ring architecture includes a first client networking element connected to the optical ring by a first pair of 2×2 add drop matrices and a second client networking element connected to the optical ring by a second pair of 2×2 add drop matrices. At least one interconnect node is also provided when more than one ring is used, wherein the interconnect node has a first 2×2 interconnect matrix and a second 2×2 interconnect matrix. The first 2×2 interconnect matrix routes the working traffic from the first client networking element to the second client networking element. Similarly, the second 2×2 interconnect matrix routes the protection traffic from the second client networking element to the first client networking element. The optical ring includes a first access ring, an inter-office (IOF) ring, and a second access ring. Access rings are connected to the IOF ring by the aforementioned interconnect nodes.

    摘要翻译: 双纤环结构,能承载多个波长通道,允许客户端单点故障自愈。 环形结构包括携带至少一个波长信道的双光纤光环,其中波长信道具有工作业务和保护业务。 光环可以包括单个环,两个互连环或多个互连环。 具体来说,环形架构包括通过第一对2x2加法矩阵连接到光环的第一客户端网络元件,以及通过第二对2x2加法矩阵连接到光环的第二客户网络元件。 当使用多于一个环时,还提供至少一个互连节点,其中互连节点具有第一2x2互连矩阵和第二2x2互连矩阵。 第一个2x2互连矩阵将工作流量从第一个客户端网络元件路由到第二个客户端网络元件。 类似地,第二2x2互连矩阵将保护流量从第二客户端网络元件路由到第一客户端网络元件。 光环包括第一接入环,办公室间(IOF)环和第二接入环。 接入环通过上述互连节点连接到IOF环。

    Two-fiber optical shared protection ring with a bi-directional 4×4 optical switch fabric
    2.
    发明授权
    Two-fiber optical shared protection ring with a bi-directional 4×4 optical switch fabric 失效
    双光纤共享保护环,双向4x4光交换机

    公开(公告)号:US06771852B2

    公开(公告)日:2004-08-03

    申请号:US10117598

    申请日:2002-04-05

    IPC分类号: G02B628

    摘要: The present invention is directed to a protection switch for use in a node of a two-fiber optical shared protection ring. The two-fiber optical shared protection ring propagates at least one bi-directional channel. Each bi-directional channel includes a working first wavelength signal and a working second wavelength signal. One fiber in the two-fiber optical channel shared protection ring propagates the working first wavelength signal in a first direction and the other fiber in the two-fiber optical channel shared protection ring propagating the working second wavelength signal in a second direction opposite the first direction. The switch includes an N×N optical switch fabric system disposed in the node. The N×N optical switch fabric includes 2N input/output (I/O) ports, wherein N is four, or an integer multiple of four. Each optical switch fabric is configured to switch at least one bi-directional channel. At least N three-port optical devices are coupled to N of the I/O ports. Each three-port optical device includes a bi-directional port coupled to an I/O port. The bi-directional port is configured to propagate the at least one bi-directional channel.

    摘要翻译: 本发明涉及一种用于双光纤共享保护环的节点中的保护开关。 双光纤共享保护环传播至少一个双向通道。 每个双向通道包括工作的第一波长信号和工作的第二波长信号。 双纤维光通道共享保护环中的一个光纤在第一方向上传播工作的第一波长信号,而双纤维光通道共用保护环中的另一个光纤在与第一方向相反的第二方向上传播工作的第二波长信号 。 交换机包括设置在节点中的NxN光交换机系统。 NxN光交换结构包括2N个输入/输出(I / O)端口,其中N为4,或4的整数倍。 每个光交换结构被配置成切换至少一个双向信道。 至少N个三端口光学设备耦合到N个I / O端口。 每个三端口光学设备包括耦合到I / O端口的双向端口。 双向端口被配置为传播至少一个双向信道。

    Four-fiber ring optical cross connect system using 4×4 switch matrices
    3.
    发明授权
    Four-fiber ring optical cross connect system using 4×4 switch matrices 失效
    采用4x4开关矩阵的四芯光纤交叉连接系统

    公开(公告)号:US06579018B1

    公开(公告)日:2003-06-17

    申请号:US09465066

    申请日:1999-12-16

    IPC分类号: H04B1008

    摘要: An optical cross-connect system provides 4×4 switching matrices and self-healing from any single point of failure. The switching matrices route working traffic and redundant protection traffic between a plurality of client network elements and an optical ring. The system also has a client interface for transporting the working traffic and the protection traffic between the switching matrices and the client network elements. The optical cross-connect system further includes a ring interface for transporting the working traffic and the protection traffic between the switching matrices and the optical ring. The switching matrices are structured so that protection is provided from single point failures by electrical switching at the client network element location. This significantly reduces the need for optical switching within the matrices.

    摘要翻译: 光交叉连接系统提供4x4开关矩阵和任何单点故障自愈。 交换矩阵在多个客户端网络元件和光环之间路由工作流量和冗余保护流量。 该系统还具有用于在切换矩阵和客户端网络元件之间传输工作流量和保护流量的客户端接口。 光交叉连接系统还包括用于传送工作业务的环路接口和交换矩阵与光环之间的保护业务。 开关矩阵的结构使得通过客户端网元位置处的电切换从单点故障提供保护。 这显着地减少了在矩阵内的光学切换的需要。

    Reconfigurable optical add-drop multiplexers employing optical multiplex section shared protection
    6.
    发明授权
    Reconfigurable optical add-drop multiplexers employing optical multiplex section shared protection 失效
    采用光复用段共享保护的可重配置光分插复用器

    公开(公告)号:US07336901B1

    公开(公告)日:2008-02-26

    申请号:US10786175

    申请日:2004-02-24

    申请人: Mark J. Soulliere

    发明人: Mark J. Soulliere

    IPC分类号: H04J14/02

    摘要: A reconfigurable optical add-drop multiplexer is disclosed that enables Optical Multiplex Section (OMS) shared protection rings. The ROADM comprises a first optical supervisory module, coupled to a first amplifier module, which in turn is coupled to a first broadcast and select module, where the first broadcast and select module is coupled to both a first multiplexer/demultiplexer module and the first optical supervisory module. Each optical supervisory module has an optical tap for tapping a fraction of an outgoing OMS signal that is fed back or looped back to a 2×1 optical switch in the optical supervisory module.

    摘要翻译: 公开了一种可重配置光分插复用器,其实现光复用部分(OMS)共享保护环。 ROADM包括耦合到第一放大器模块的第一光学监控模块,第一放大器模块又耦合到第一广播和选择模块,其中第一广播和选择模块耦合到第一多路复用器/解复用器模块和第一光学 监督模块 每个光学监控模块都具有一个光学抽头,用于抽出输出OMS信号的一部分,反馈或环回到光学监控模块中的2x1光开关。