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    Optical router
    1.
    发明申请
    Optical router 失效
    光路由器

    公开(公告)号：US20040141757A1

    公开(公告)日：2004-07-22

    申请号：US10751913

    申请日：2004-01-07

    Applicant: Yokogawa Electric Corporation

    Inventor： Chie Sato

    IPC: H04B010/00

    CPC classification number: H04Q11/0005 ,  H04Q2011/002 ,  H04Q2011/0039 ,  H04Q2011/005

    Abstract: The present invention has been made to realize an optical router capable of preventing optical signals from conflicting with each other and of efficiently allocating an optimum optical path. The optical router is configured to select optical paths for optical signals transmitting through an optical transmission line disposed on an optical node basis, output the optical signals, and thereby form an optical communications network, and is comprised of: optical delay means for delaying a plurality of the optical signals containing routing information added to the header parts thereof; an optical switch provided with a plurality of input ports to which a plurality of optical outputs are input from the optical delay means and a plurality of output ports for outputting the optical signals; optical-electrical conversion means for converting a plurality of the optical signals to electrical signals; memory wherein path control information is stored; and a controller for finding the path control information according to the routing information extracted from the output of the optical-electrical conversion means, determining the destinations of the optical signals based on the output requests therefrom, and selecting and assigning one input port in an arbitrary order from a single or plural input ports having output requests to a plurality of the output ports.

    Abstract translation: 本发明是为了实现能够防止光信号相互冲突并有效地分配最佳光路的光路由器。 光路由器被配置为选择通过设置在光节点上的光传输线路的光信号的光路，输出光信号，从而形成光通信网络，并且包括：延迟多个光延迟装置 包括添加到其标题部分的路由信息​​的光信号; 设置有从所述光延迟装置输入多个光输出的多个输入端口的光开关和用于输出所述光信号的多个输出端口; 光电转换装置，用于将多个光信号转换成电信号; 存储器，其中存储路径控制信息; 以及控制器，用于根据从光电转换装置的输出提取的路由信息​​找到路径控制信息，基于其输出请求确定光信号的目的地，并且选择并分配任意一个输入端口 从具有输出请求的单个或多个输入端口到多个输出端口的顺序。

    Optical router
    2.
    发明申请
    Optical router 有权
    光路由器

    公开(公告)号：US20040184713A1

    公开(公告)日：2004-09-23

    申请号：US10763285

    申请日：2004-01-26

    Applicant: Yokogawa Electric Corporation

    Inventor： Chie Sato ,  Shinji Iio ,  Shinji Kobayashi ,  Sadaharu Oka ,  Tsuyoshi Yakihara ,  Akira Miura

    IPC: G02B006/26

    CPC classification number: H04Q11/0005 ,  H04Q2011/002 ,  H04Q2011/0024 ,  H04Q2011/0039 ,  H04Q2011/0043

    Abstract: An optical router capable of efficiently allocating optimum optical paths to optical signals at optimum timings is provided in accordance with the present invention. The optical router comprises: optical delay means for delaying a plurality of the optical signals containing routing information attached to the header parts thereof by an optical signal delay time; an optical switch provided with a plurality of input ports whereto a plurality of optical outputs of the optical delay means are input and with a plurality of output ports wherefrom the optical signals are output; an optical-electrical converter for converting a plurality of the optical signals to electrical signals; memory wherein path control information and delay time information are stored; and a controller for generating an electrical routing control signal whereby to change the optical paths of the optical signals by finding the path control information according to the routing information extracted from the output of the optical-electrical converter and for delaying the electrical routing control signal by an electrical signal delay time determined according to the delay time information before outputting the electrical routing control signal to the optical switch.

    Abstract translation: 根据本发明，提供一种能够以最佳定时有效地将最佳光路分配到光信号的光路由器。 光路由器包括：光延迟装置，用于延迟包含附加到其标题部分的路由信息​​的多个光信号的光信号延迟时间; 设置有多个输入端口的光开关，其中输入光延迟装置的多个光输出端，并且输出多个输出端口，其中输出光信号; 用于将多个光信号转换为电信号的光电转换器; 存储器，其中存储路径控制信息和延迟时间信息; 以及控制器，用于产生电路由控制信号，由此通过根据从光电转换器的输出提取的路由信息​​找到路径控制信息来改变光信号的光路，并且通过以下步骤延迟电路由控制信号： 在将电路由控制信号输出到光开关之前根据延迟时间信息确定的电信号延迟时间。

    Optical switch
    4.
    发明申请
    Optical switch 失效
    光开关

    公开(公告)号：US20040184712A1

    公开(公告)日：2004-09-23

    申请号：US10763277

    申请日：2004-01-26

    Applicant: Yokogawa Electric Corporation

    Inventor： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka ,  Morio Wada ,  Shoujirou Araki ,  Machio Dobashi ,  Chie Sato ,  Yasukazu Akasaka

    IPC: G02B006/26

    CPC classification number: G02F1/3138 ,  G02F2203/023

    Abstract: In an optical switch, a carrier-accumulating layer in which injected carriers are accumulated is provided on a semiconductor substrate having a waveguide formed thereon so that injected effective carriers tend to be accumulated in an effective part, and the burden on a driving circuit is thus reduced to realize high-speed operation. At the same time, when a clad on the carrier injection side, of clad layers formed on both sides of the waveguide, is a second clad layer, and a clad on the substrate side is a first clad layer, a third clad layer is formed on the first clad layer to reduce propagation loss in the waveguide.

    Abstract translation: 在光开关中，在其上形成有波导的半导体衬底上设置有其中注入有载流子的载流子积聚层，使得注入的有效载流子倾向于积聚在有效部分，并且因此驱动电路的负担 减少实现高速运行。 同时，当在波导两侧形成的包层的载流子注入侧的包层为第二覆盖层时，基板侧的包层为第一覆盖层，形成第三覆盖层 在第一包层上减少波导中的传播损耗。

    Active diffraction grating
    5.
    发明申请
    Active diffraction grating 失效
    主动衍射光栅

    公开(公告)号：US20040213499A1

    公开(公告)日：2004-10-28

    申请号：US10826343

    申请日：2004-04-19

    Applicant: YOKOGAWA ELECTRIC CORPORATION

    Inventor： Shun-ichi Miyazaki ,  Akira Miura ,  Shinji Kobayashi ,  Morio Wada ,  Tsuyoshi Yakihara ,  Sadaharu Oka ,  Shinji Iio ,  Tadashige Fujita ,  Chie Sato

    IPC: G02F001/295

    CPC classification number: G02F1/313 ,  G02F1/292 ,  G02F2201/307

    Abstract: An active diffraction grating that has a high degree of freedom in control, small size and high reliability is realized. The active diffraction grating comprises an optical waveguide formed on a two-dimensional plane and electrodes formed on both sides of the optical waveguide, wherein one of the electrodes is formed as plural spot electrodes at a constant spacing in a matrix form on the two-dimensional plane, and with respect to the size of the spot electrodes and the distance between the spot electrodes, the spot electrodes are small and dense enough to function as a line when the spot electrodes are arrayed in a straight line within the diameter of light incident on the optical waveguide, and wherein plural spot electrodes of the spot electrodes arranged in the matrix form are selected and a voltage is applied thereto so as to form at least two parallel lines having a predetermined angle to the traveling direction of the light incident on the optical waveguide, and when the light incident on the two-dimensional plane waveguide is reflected by said at least two parallel lines, the refractive index of the optical waveguide is partly changed so that the wavelength of the light, the angle of the two lines to the incident light and the distance between the lines satisfy a Bragg reflection condition.

    Abstract translation: 实现了具有高自由度控制，小尺寸和高可靠性的主动衍射光栅。 主动衍射光栅包括形成在二维平面上的光波导和形成在光波导两侧的电极，其中一个电极以矩阵形式以恒定的间隔形成为二维的 平面，并且相对于点电极的尺寸和点电极之间的距离，点电极小而致密，足以在点电极以直线排列在入射到光的直径内的直线上发挥作用 光波导，并且其中以矩阵形式布置的点电极的多个点电极被选择并且向其施加电压，以便形成至少两条与入射在光学器件上的光的行进方向具有预定角度的平行线 并且当入射到二维平面波导上的光被所述至少两条平行线反射时，折射率为t 光波导部分地变化，使得光的波长，两条线对入射光的角度和线之间的距离满足布拉格反射条件。

    Optical path control device
    6.
    发明申请
    Optical path control device 审中-公开
    光路控制装置

    公开(公告)号：US20040208412A1

    公开(公告)日：2004-10-21

    申请号：US10813123

    申请日：2004-03-31

    Applicant: YOKOGAWA ELECTRIC CORPORATION

    Inventor： Shun-ichi Miyazaki ,  Akira Miura ,  Shinji Kobayashi ,  Morio Wada ,  Tsuyoshi Yakihara ,  Sadaharu Oka ,  Shinji Iio ,  Chie Sato

    IPC: G02F001/295 ,  G02B006/26

    CPC classification number: G02F1/31 ,  G02B6/3548 ,  G02F1/295 ,  G02F2001/311 ,  G02F2201/066 ,  G02F2202/101

    Abstract: According to this invention, electrodes are formed on both sides of a part of an optical waveguide formed on a substrate and a voltage is applied between the electrodes to change the refractive index at the part of the optical waveguide where the electrode is formed. Therefore, the traveling direction of light can be changed. Moreover, an optical waveguide formed on a substrate, plural electrodes formed on both sides of the optical waveguide, plural incidence units formed at one end of the substrate, and plural emission units formed at the other end are provided. A voltage applied to an arbitrary electrode of the plural electrodes is controlled to change the refractive index at the part of the optical waveguide where the voltage is applied. Light emitted from an arbitrary incidence unit and incident on a core of the substrate thus becomes incident on an arbitrary emission unit. As the position of incidence of incident light or the diameter of the incident light is controlled to emit light to an arbitrary emission unit, an optical switch is realized that has a high degree of freedom in control, is small-sized, has no moving part and has high reliability. Moreover, as a voltage application unit is provided with an algorithm-based optimization processing function in order to improve the responsiveness and the degree of freedom of the optical switch, a highly flexible optical switch that can cope with, for example, changes in communication quantity and communication failure, is realized.

    Abstract translation: 根据本发明，在形成在基板上的光波导的一部分的两侧形成电极，并且在电极之间施加电压以改变形成电极的光波导部分的折射率。 因此，可以改变光的行进方向。 此外，形成在基板上的光波导，形成在光波导的两侧的多个电极，形成在基板一端的多个入射单元和形成在另一端的多个发光单元。 控制施加到多个电极中的任意电极的电压，以改变在施加电压的光波导的部分处的折射率。 从任意入射单元发射的入射在基板的芯上的光就入射到任意的发射单元上。 当入射光的入射位置或入射光的直径被控制为发射光到任意的发射单元时，实现了具有高自由度控制的光学开关，小型化，没有移动部分 并具有很高的可靠性。 此外，为了提高光开关的响应性和自由度，为了提供基于算法的优化处理功能，电压施加单元具有高灵活性的光开关，能够应付例如通信量的变化 和通信故障，实现。

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