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    • 5. 发明授权
    • Two-fiber interconnected ring architecture
    • 双纤互联环架构
    • US06616349B1
    • 2003-09-09
    • US09467748
    • 1999-12-20
    • Ming-Jun LiMark J. SoulliereRichard E. Wagner
    • Ming-Jun LiMark J. SoulliereRichard E. Wagner
    • H04B1000
    • H04J14/0294H04J14/0227H04J14/0241H04J14/0283H04J14/0286
    • 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.
    • 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。
    • 7. 发明授权
    • Optical switch with rotating, reflective, concave surface
    • 光开关具有旋转,反光,凹面
    • US4261638A
    • 1981-04-14
    • US947650
    • 1978-10-02
    • Richard E. Wagner
    • Richard E. Wagner
    • G02B6/35G02B5/14
    • G02B6/352G02B6/3558G02B6/3598
    • An optical switch is disclosed which relies only on a rotatable, reflective concave surface (3) to couple light between an optical source (1) and a preselected one of a plurality of optical receptors (6). The switch is bidirectional, i.e., the position of the source(s) and receptor(s) can be interchanged. Optical fibers may be used as the source(s) and receptor(s). The source, however, may also be chosen from such devices as lasers, light-emitting diodes or any other optical source known to those skilled in the art. Similarly, avalanche photodiodes or the like may be used as optical receptors.The above switch structure requiring only a reflective element is particularly suitable for switching light signals in telecommunication applications. The elimination of the need for a refractive element, such as a lens, provides a structure in which the output signal is independent of wavelength and index of refraction.
    • 公开了一种光学开关,其仅依赖于可旋转的反射凹面(3),以在光源(1)和多个光学接收器(6)中预选的光接收器之间耦合光。 开关是双向的,即源和接收器的位置可以互换。 光纤可以用作源和受体。 然而,源也可以选自诸如激光器,发光二极管或本领域技术人员已知的任何其它光源的器件。 类似地,雪崩光电二极管等可以用作光学受体。 上述仅需要反射元件的开关结构特别适用于在电信应用中切换光信号。 消除对诸如透镜的折射元件的需要提供了其中输出信号与波长和折射率无关的结构。