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。

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。

公开(公告)号：US20040196674A1

公开(公告)日：2004-10-07

申请号：US10767167

申请日：2004-01-30

Applicant: Yokogawa Electric Corporation

Inventor： Akira Miura ,  Shinji Kobayashi ,  Hitoshi Hara ,  Tsuyoshi Yakihara ,  Sadaharu Oka

IPC: H02J003/00

CPC classification number: H01J21/00 ,  H03M1/361

Abstract: A fine vacuum tube element and other electronic elements are integrated and formed on a semiconductor substrate, and the fine vacuum tube element and the other electronic elements transmit signals to and from each other. When integrating the vacuum tube element with the other electronic elements, a quantum effect is realized in a room temperature environment by utilizing ballistic electrons (non-scattering electrons) traveling through the vacuum, and in the integrated circuit, an A/D converter is constructed by an interference system such as a Mach-Zehnder interferometer. Also an integrated circuit of an advanced function-integrated type is provided, comprising an interference system such as a Mach-Zehnder interferometer wherein weighting of the Mach-Zehnder interferometer is constituted for image processing and signal code conversion. A very high-speed light-receiving integrated circuit for optical communication is constructed by utilizing a very high-speed optical response characteristic of electron emission of the vacuum element, and a sensor such as a magnetic/electric field sensor is constructed by utilizing a quantum effect of ballistically traveling electrons.

Abstract translation: 一个精细的真空管元件和其他电子元件集成在半导体衬底上，精细的真空管元件和其他电子元件相互传递信号。 当将真空管元件与其他电子元件集成时，通过利用穿过真空的弹道电子（非散射电子）在室温环境中实现量子效应，并且在集成电路中构造A / D转换器 通过诸如Mach-Zehnder干涉仪的干涉系统。 还提供了一种高级功能集成型的集成电路，其包括诸如马赫 - 曾德尔干涉仪的干涉系统，其中，马赫 - 曾德干涉仪的加权被构成用于图像处理和信号编码转换。 通过利用真空元件的电子发射的非常高速的光学响应特性构建用于光通信的非常高速的光接收集成电路，并且通过利用量子化来构造诸如磁/电场传感器的传感器 弹道行进电子的作用。

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。

公开(公告)号：US20040213584A1

公开(公告)日：2004-10-28

申请号：US10813116

申请日：2004-03-31

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Shun-ichi Miyazaki ,  Akira Miura ,  Sadaharu Oka ,  Chie Sato ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Morio Wada ,  Hirotoshi Kodaka ,  Toshimasa Umezawa

IPC: H04B010/06

CPC classification number: H01L31/03046 ,  B82Y10/00 ,  G02F3/00 ,  G02F2001/0157 ,  H01L31/145 ,  H03K3/315 ,  H04B10/69 ,  Y02E10/544

Abstract: An optical signal processing apparatus capable of performing high-speed operation is to be realized. According to this invention, at least one photodiode for converting an optical signal to an electrical signal, and a resonant tunneling diode for having the electrical signal of this photodiode inputted thereto and performing switch operation are provided to acquire a digital signal.

Abstract translation: 能够实现能够进行高速运转的光信号处理装置。 根据本发明，提供用于将光信号转换为电信号的至少一个光电二极管和用于使该光电二极管的电信号输入并进行开关操作的谐振隧穿二极管，以获取数字信号。

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。

公开(公告)号：US20040178935A1

公开(公告)日：2004-09-16

申请号：US10761372

申请日：2004-01-22

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Hiroyuki Matsuura ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka ,  Hirotoshi Kodaka

IPC: H03M009/00

CPC classification number: H04J14/08

Abstract: The present invention aims at achieving an optical signal processing system which converts a higher speed optical signal to electrical signals by time-demultiplexing the signal with low-speed electrical signals. The present invention offers an improved optical signal processing system that converts a serial pulse train optical signal with transmission speed N to parallel pulse train electrical signals. This system is characterized by providing a serial-parallel converter in which at least two optical switches are cascaded, each of which outputs optical signals with transmission speed M (N>M) to one of the two output terminals and outputs the remaining optical signals to the alternative one of said two output terminals by switching connection to said output terminal, receiving parts which convert optical signals from one of the two output terminals of each of the above optical switches to electrical signals, a synchronizing circuit which outputs timing signals in synchronization with electrical signals output from these receiving parts, and drivers which cause the above described optical switches to switch their connections based on timing signals output from the above synchronizing circuit.

Abstract translation: 本发明旨在实现一种光信号处理系统，其通过用低速电信号对信号进行时分解，将高速光信号转换成电信号。 本发明提供一种改进的光信号处理系统，其将具有传输速度N的串行脉冲序列光信号转换为并行脉冲串电信号。 该系统的特征在于提供一种串并联转换器，其中至少两个光开关级联，其中每一个将传输速度M（N> M）的光信号输出到两个输出端之一，并将剩余的光信号输出到 所述两个输出端子中的另一个通过切换到所述输出端子的连接;接收部件，其将来自上述每个光开关的两个输出端之一的光信号转换成电信号;同步电路，其与 从这些接收部输出的电信号，以及使上述光开关根据从上述同步电路输出的定时信号切换连接的驱动器。