公开(公告)号：US07317848B2

公开(公告)日：2008-01-08

申请号：US10898927

申请日：2004-07-27

申请人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

发明人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

IPC分类号： G02B6/26

CPC分类号： G02F1/3138 ,  G02F2201/12 ,  G02F2203/60

摘要： An optical switch in which the adverse effect of heating can be restrained is realized. An optical switch for switching a transmission path of an optical signal by a change in refractive index due to carrier injection comprises: a semiconductor substrate; an optical waveguide layer which is formed on the semiconductor substrate and in which an optical waveguide is formed, the optical signal being incident on the optical waveguide from one side, then branched into two at a halfway part and emitted from the optical waveguide; a first electrode formed on the optical waveguide layer and at a branching part of the optical waveguide; a second electrode formed on the optical waveguide layer and near the branching part of the optical waveguide; and a third electrode formed on the optical waveguide layer and on a side opposite to the first electrode as viewed from the second electrode; wherein when the optical switch is on, carriers are injected from the first and second electrodes, and when the optical switch is off, carriers are injected from the second and third electrodes.

摘要翻译： 实现了可以抑制加热的不利影响的光开关。 用于通过载流子注入引起的折射率变化来切换光信号的传输路径的光开关包括：半导体衬底; 形成在半导体基板上并形成有光波导的光波导层，光信号从一侧入射到光波导上，然后中途分支成两个，并从光波导发射; 形成在所述光波导层上和所述光波导的分支部的第一电极; 形成在光波导层上且靠近光波导的分支部分的第二电极; 以及第三电极，其形成在所述光波导层上并且与所述第一电极相反的一侧从所述第二电极观察; 其中当所述光开关导通时，从所述第一和第二电极注入载流子，并且当所述光开关断开时，载流子从所述第二和第三电极注入。

公开(公告)号：US07167609B2

公开(公告)日：2007-01-23

申请号：US11245196

申请日：2005-10-07

申请人： Masayuki Suehiro ,  Shinji Iio ,  Shinichi Nakajima ,  Yoshiyuki Asano ,  Morio Wada ,  Akira Miura ,  Katsuya Ikezawa

发明人： Masayuki Suehiro ,  Shinji Iio ,  Shinichi Nakajima ,  Yoshiyuki Asano ,  Morio Wada ,  Akira Miura ,  Katsuya Ikezawa

IPC分类号： G02B6/42 ,  G02B6/26

CPC分类号： G02F1/3138

摘要： An optical switch has an input port, output ports, optical waveguides whose output path of an optical signal branch into two. A first stage optical switch section is provided in a branching portion of the optical waveguide, which switches a propagating path of an optical signal to a path leading to the desired output port. A subsequent stage optical switch section is provided in a branching portion of the optical waveguide subsequent to the first stage optical switch section, which switches a propagating path of a leakage light, which is leaked from the first stage optical switch section, to a path which does not propagates the leakage light to any of the output ports. The first stage optical switch section and the subsequent stage optical switch section switch a path of an optical signal according to a refractive index change caused by a carrier injection.

摘要翻译： 光开关具有输入端口，输出端口，光信号的输出路径分为两路的光波导。 第一级光开关部分设置在光波导的分支部分中，其将光信号的传播路径切换到通向所需输出端口的路径。 后级光开关部分设置在第一级光开关部分之后的光波导的分支部分中，其将从第一级光开关部分泄漏的泄漏光的传播路径切换到 不将泄漏光传播到任何输出端口。 第一级光开关部分和后级光开关部分根据由载流子注入引起的折射率变化来切换光信号的路径。

公开(公告)号：US20050041913A1

公开(公告)日：2005-02-24

申请号：US10901173

申请日：2004-07-29

申请人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

发明人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

IPC分类号： G02B6/12 ,  G02F1/29 ,  G02F1/313 ,  G02B6/26

CPC分类号： G02F1/3138 ,  G02B2006/12173 ,  G02F1/293

摘要： A matrix optical switch that can switch the transmission path of an optical signal without requiring a driving unit for each optical switch is realized. A matrix optical switch for switching a transmission path of an optical signal by connecting plural input sides and plural output sides, respectively, comprises: a semiconductor optical waveguide substrate; a photo mask choosing system for selecting and arranging one photo mask from plural photo masks each of which has printed thereon a pattern connecting plural input sides to plural output sides; and a light source for casting output light having larger energy than a band gap of the semiconductor optical waveguide substrate onto a photon injection area between the plural input sides and the plural output sides on the semiconductor optical waveguide substrate via the selected photo mask.

摘要翻译： 实现了可以切换光信号的传输路径而不需要每个光开关的驱动单元的矩阵光开关。 用于通过连接多个输入侧和多个输出侧来切换光信号的传输路径的矩阵光开关包括：半导体光波导基片; 一种光掩模选择系统，用于从多个照相掩模中选择和布置一个照片掩模，每个照片掩模上印有将多个输入侧连接到多个输出侧的图案; 以及用于将具有比半导体光波导基板的带隙更大的能量的输出光通过所选择的光掩模投射到半导体光波导基板上的多个输入侧和多个输出侧之间的光子注入区域上的光源。

公开(公告)号：US20050041903A1

公开(公告)日：2005-02-24

申请号：US10898927

申请日：2004-07-27

申请人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

发明人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

IPC分类号： G02F1/025 ,  G02F1/313 ,  G02F1/295

CPC分类号： G02F1/3138 ,  G02F2201/12 ,  G02F2203/60

摘要： An optical switch in which the adverse effect of heating can be restrained is realized. An optical switch for switching a transmission path of an optical signal by a change in refractive index due to carrier injection comprises: a semiconductor substrate; an optical waveguide layer which is formed on the semiconductor substrate and in which an optical waveguide is formed, the optical signal being incident on the optical waveguide from one side, then branched into two at a halfway part and emitted from the optical waveguide; a first electrode formed on the optical waveguide layer and at a branching part of the optical waveguide; a second electrode formed on the optical waveguide layer and near the branching part of the optical waveguide; and a third electrode formed on the optical waveguide layer and on a side opposite to the first electrode as viewed from the second electrode; wherein when the optical switch is on, carriers are injected from the first and second electrodes, and when the optical switch is off, carriers are injected from the second and third electrodes.

摘要翻译： 实现了可以抑制加热的不利影响的光开关。 用于通过载流子注入引起的折射率变化来切换光信号的传输路径的光开关包括：半导体衬底; 形成在半导体基板上并形成有光波导的光波导层，光信号从一侧入射到光波导上，然后中途分支成两个，并从光波导发射; 形成在所述光波导层上和所述光波导的分支部的第一电极; 形成在光波导层上且靠近光波导的分支部分的第二电极; 以及第三电极，其形成在所述光波导层上并且与所述第一电极相反的一侧从所述第二电极观察; 其中当所述光开关导通时，从所述第一和第二电极注入载流子，并且当所述光开关断开时，载流子从所述第二和第三电极注入。

公开(公告)号：US20070122150A1

公开(公告)日：2007-05-31

申请号：US11563570

申请日：2006-11-27

申请人： Masayuki Suehiro ,  Shinji Iio ,  Daisuke Hayashi ,  Morio Wada

发明人： Masayuki Suehiro ,  Shinji Iio ,  Daisuke Hayashi ,  Morio Wada

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0024 ,  H04Q2011/0039 ,  H04Q2011/0041

摘要： An address recognition apparatus may include a first normalizing unit, a second normalizing unit and an address determination unit. The first normalizing unit normalizes a first electric signal and generates a first normalized signal, wherein the first electric signal is associated with a first divided set of optical packet signals. The second normalizing unit normalizes a second electric signal and generates a second normalized signal, wherein the second electric signal is associated with a second divided set of optical packet signals. The address determination unit refers to the first and second normalized signals and determines whether a destination address of a set of optical packet signals is identical to or different from an address allocated to a self-station associated with the address recognition apparatus, wherein the set of optical packet signals has been divided into the first and second divided sets of optical packet signals.

摘要翻译： 地址识别装置可以包括第一归一化单元，第二归一化单元和地址确定单元。 第一归一化单元使第一电信号归一化并产生第一归一化信号，其中第一电信号与第一分组的光分组信号相关联。 第二标准化单元使第二电信号归一化并产生第二归一化信号，其中第二电信号与第二分组的光分组信号相关联。 地址确定单元参考第一和第二归一化信号，并且确定一组光分组信号的目的地地址是否与分配给与地址识别装置相关联的自身站的地址相同或不同，其中， 光分组信号已被划分为第一和第二分组的光分组信号。

公开(公告)号：US07738788B2

公开(公告)日：2010-06-15

申请号：US11563570

申请日：2006-11-27

申请人： Masayuki Suehiro ,  Shinji Iio ,  Daisuke Hayashi ,  Morio Wada

发明人： Masayuki Suehiro ,  Shinji Iio ,  Daisuke Hayashi ,  Morio Wada

IPC分类号： H04J14/00 ,  H04J14/02

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0024 ,  H04Q2011/0039 ,  H04Q2011/0041

摘要： An address recognition apparatus may include a first normalizing unit, a second normalizing unit and an address determination unit. The first normalizing unit normalizes a first electric signal and generates a first normalized signal, wherein the first electric signal is associated with a first divided set of optical packet signals. The second normalizing unit normalizes a second electric signal and generates a second normalized signal, wherein the second electric signal is associated with a second divided set of optical packet signals. The address determination unit refers to the first and second normalized signals and determines whether a destination address of a set of optical packet signals is identical to or different from an address allocated to a self-station associated with the address recognition apparatus, wherein the set of optical packet signals has been divided into the first and second divided sets of optical packet signals.

摘要翻译： 地址识别装置可以包括第一归一化单元，第二归一化单元和地址确定单元。 第一归一化单元使第一电信号归一化并产生第一归一化信号，其中第一电信号与第一分组的光分组信号相关联。 第二标准化单元使第二电信号归一化并产生第二归一化信号，其中第二电信号与第二分组的光分组信号相关联。 地址确定单元参考第一和第二归一化信号，并且确定一组光分组信号的目的地地址是否与分配给与地址识别装置相关联的自身站的地址相同或不同，其中， 光分组信号已被划分为第一和第二分组的光分组信号。

公开(公告)号：US20060133818A1

公开(公告)日：2006-06-22

申请号：US11282563

申请日：2005-11-21

申请人： Hiroshi Shimizu ,  Masayuki Suehiro ,  Daisuke Hayashi ,  Akira Miura

发明人： Hiroshi Shimizu ,  Masayuki Suehiro ,  Daisuke Hayashi ,  Akira Miura

IPC分类号： H04B10/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/002 ,  H04Q2011/0039 ,  H04Q2011/0041

摘要： An address determination circuit makes an address determination of an optical packet to which a destination address and a source address are assigned on a bit-by-bit basis. The address determination circuit has an optical branching section which divides the optical packet into branches, in which each of the branched optical packet contains the same original data, a delay section which delays at least one of the branched optical packets, a bit determination section which determines each bit value of the branched optical packets, and a logic operation section which performs a logic operation on the bit values of the branched optical packets determined by the bit determination section. The delay section delays the branched optical packets so that the logic operation section performs the logic operation on a bit assigned the destination address or the source address and a bit having a predetermined bit value in synchronization with each other.

公开(公告)号：US07133613B2

公开(公告)日：2006-11-07

申请号：US11282563

申请日：2005-11-21

申请人： Hiroshi Shimizu ,  Masayuki Suehiro ,  Daisuke Hayashi ,  Akira Miura

发明人： Hiroshi Shimizu ,  Masayuki Suehiro ,  Daisuke Hayashi ,  Akira Miura

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/002 ,  H04Q2011/0039 ,  H04Q2011/0041

摘要： An address determination circuit makes an address determination of an optical packet to which a destination address and a source address are assigned on a bit-by-bit basis. The address determination circuit has an optical branching section which divides the optical packet into branches, in which each of the branched optical packet contains the same original data, a delay section which delays at least one of the branched optical packets, a bit determination section which determines each bit value of the branched optical packets, and a logic operation section which performs a logic operation on the bit values of the branched optical packets determined by the bit determination section. The delay section delays the branched optical packets so that the logic operation section performs the logic operation on a bit assigned the destination address or the source address and a bit having a predetermined bit value in synchronization with each other.

摘要翻译： 地址确定电路对目标地址和源地址逐位分配的光分组进行地址确定。 地址确定电路具有光分路部分，其将光分组划分成分支，其中每个分支光分组包含相同的原始数据;延迟部分，其延迟至少一个分支光分组;比特确定部分， 确定分支光学分组的每个比特值;以及逻辑运算部分，对由比特确定部分确定的分支光学分组的比特值进行逻辑运算。 延迟部延迟分支的光分组，使得逻辑运算部分对分配了目的地址或源地址的位执行逻辑运算，并且具有彼此同步的具有预定位值的位。

公开(公告)号：US07689069B2

公开(公告)日：2010-03-30

申请号：US12184413

申请日：2008-08-01

申请人： Masayuki Suehiro ,  Shinji Iio ,  Shinichi Nakajima ,  Yoshiyuki Asano ,  Morio Wada

发明人： Masayuki Suehiro ,  Shinji Iio ,  Shinichi Nakajima ,  Yoshiyuki Asano ,  Morio Wada

IPC分类号： G02F1/295 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02F1/3138

摘要： A semiconductor optical switch may include an optical waveguide, a first electrode, and a first reflector. The optical waveguide may include a branching point, a first incoming path and first and second outgoing paths. The first electrode is provided at the branching point to give carrier injection into the branching point to allow that the branching point reflects an optical signal that is propagating through the first incoming path so that the reflected optical signal propagates through the second outgoing path. The first electrode may give no carrier injection into the branching point to allow that the branching point allows the optical signal to transmit through the branching point and propagate through the first outgoing path. The first reflector is provided on the first outgoing path. The first reflector reflects a leakage of light that has propagated from the branching point.

摘要翻译： 半导体光开关可以包括光波导，第一电极和第一反射器。 光波导可以包括分支点，第一输入路径和第一和第二输出路径。 第一电极设置在分支点处，以使载流子注入分支点，以允许分支点反射正在通过第一输入路径传播的光信号，使得反射的光信号通过第二输出路径传播。 第一电极可以不将载流子注入分支点，以允许分支点允许光信号通过分支点传输并通过第一输出路径传播。 第一反射器设置在第一输出路径上。 第一反射器反射从分支点传播的光的泄漏。