公开(公告)号：US08155517B2

公开(公告)日：2012-04-10

申请号：US12578021

申请日：2009-10-13

申请人： Keisuke Harada ,  Yutaka Kai

发明人： Keisuke Harada ,  Yutaka Kai

IPC分类号： H04B10/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/0083

摘要： An optical packet switching apparatus includes plural optical switches, an optical switching section that switches a path of an optical packet transmitted thereto according to the switch control signal to output the optical packet, and a control section that takes out a header portion representing a destination of the optical packet transmitted, photoelectrically converts the header to generate the switch control signal according to the destination to transmit the switch control signal to the optical switching section and controls the optical switch. The apparatus further includes a light monitor section that monitors a light quantity level of the optical packet transmitted and a light quantity level of the optical packet to be sent out, and an abnormality recognizing section that recognizes an effective timing of monitoring of the light quantity levels based on the switching control signal, and recognizes an abnormality based on the light quantity levels at the timing.

摘要翻译： 光分组交换装置包括多个光开关，光切换部分，根据切换控制信号切换发送到其上的光分组的路径，以输出光分组;以及控制部分，取出表示目的地的目的地的报头部分 发送的光分组，根据目的地对报头进行光电转换以产生开关控制信号，以将开关控制信号发送到光开关部分并控制光开关。 该装置还包括监视发送的光学分组的光量级别和要发送的光学分组的光量级别的光监视部分和识别光量级别的监视的有效定时的异常识别部分 基于开关控制信号，并且基于该定时处的光量水平来识别异常。

公开(公告)号：US20100027992A1

公开(公告)日：2010-02-04

申请号：US12578021

申请日：2009-10-13

申请人： Keisuke Harada ,  Yutaka Kai

发明人： Keisuke Harada ,  Yutaka Kai

IPC分类号： H04B17/00 ,  H04B10/08 ,  H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/0083

摘要： An optical packet switching apparatus includes plural optical switches, an optical switching section that switches a path of an optical packet transmitted thereto according to the switch control signal to output the optical packet, and a control section that takes out a header portion representing a destination of the optical packet transmitted, photoelectrically converts the header to generate the switch control signal according to the destination to transmit the switch control signal to the optical switching section and controls the optical switch. The apparatus further includes a light monitor section that monitors a light quantity level of the optical packet transmitted and a light quantity level of the optical packet to be sent out, and an abnormality recognizing section that recognizes an effective timing of monitoring of the light quantity levels based on the switching control signal, and recognizes an abnormality based on the light quantity levels at the timing.

摘要翻译： 光分组交换装置包括多个光开关，光切换部分，根据切换控制信号切换发送到其上的光分组的路径，以输出光分组;以及控制部分，取出表示目的地的目的地的报头部分 发送的光分组，根据目的地对报头进行光电转换以产生开关控制信号，以将开关控制信号发送到光开关部分并控制光开关。 该装置还包括监视发送的光学分组的光量级别和要发送的光学分组的光量级别的光监视部分和识别光量级别的监视的有效定时的异常识别部分 基于开关控制信号，并且基于该定时处的光量水平来识别异常。

公开(公告)号：US07546043B2

公开(公告)日：2009-06-09

申请号：US10785483

申请日：2004-02-25

申请人： Yutaka Kai ,  Hideyuki Miyata

发明人： Yutaka Kai ,  Hideyuki Miyata

IPC分类号： H04B10/06

CPC分类号： H04J14/0204 ,  H04J14/0205 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/022 ,  H04J14/0221 ,  H04J14/0283 ,  H04J14/0295 ,  H04J14/0297 ,  H04J14/0298

摘要： Signal light with a specific wavelength is transmitted and extracted from signal light multiplexed by a WDM method, and a light detection unit detects the signal light detected by an optical tunable filter, whose wavelength transmission characteristic varies depending on a control signal. An operation circuit generates information for designating a control signal needed to enable the optical tunable filter to extract signal light with a designated wavelength, based on the detected results of two segments of signal light located at each edge of a wavelength band obtained by shifting the wavelength transmission characteristic of the optical tunable filter from outside the wavelength band including all segments of the entire WDM signal. A driving circuit generates a control signal according to the designation information.

摘要翻译： 具有特定波长的信号光由通过WDM方式复用的信号光发送和提取，光检测单元检测由波长传输特性根据控制信号而变化的光可调谐滤波器检测到的信号光。 运算电路根据检测到的位于通过移位波长获得的波长带的每个边缘的信号光的两个段的检测结果，产生用于指定使光可调谐滤波器以指定波长提取信号光所需的控制信号的信息 来自包括整个WDM信号的所有段的波长带外的光可调滤波器的传输特性。 驱动电路根据指定信息生成控制信号。

公开(公告)号：US20090060506A1

公开(公告)日：2009-03-05

申请号：US12045870

申请日：2008-03-11

申请人： Koji Matsunaga ,  Yutaka Kai

发明人： Koji Matsunaga ,  Yutaka Kai

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/0045

摘要： An optical switch section that switches the path of an optical packet transmitted thereto and outputs the optical packet, and a control section that generates multiple switch control signals in accordance with the destination of an optical packet transmitted thereto, transmits the multiple control signals to the optical switch section through multiple signal transmission lines and controls the ON/OFF states of multiple optical switches are included, and delay measuring means for measuring a difference in delay time among the multiple signal transmission lines is provided. In this case, the control section adjusts the transmission times of the multiple switch control signals such that the difference in delay time measured by the delay measuring means can be cancelled and that the multiple switch control signals transmitted through the multiple signal transmission lines can arrive at the multiple optical switches simultaneously and transmits the multiple switch control signals.

摘要翻译： 一种光转换部分，其切换发送到其上的光学分组的路径并输出该光学分组;以及控制部分，其根据发送到其的光学分组的目的地产生多个切换控制信号，将该多个控制信号发送到光学 包括通过多个信号传输线路的开关部分并且控制多个光开关的ON / OFF状态，并且提供了用于测量多个信号传输线之间的延迟时间差的延迟测量装置。 在这种情况下，控制部分调整多个开关控制信号的传输时间，从而可以消除由延迟测量装置测量的延迟时间差，并且通过多个信号传输线传输的多个开关控制信号可以到达 多个光开关同时发送多个开关控制信号。

公开(公告)号：US07462812B2

公开(公告)日：2008-12-09

申请号：US12051425

申请日：2008-03-19

申请人： Yutaka Kai ,  Yasuhiko Aoki ,  Eric Gouardes ,  Yoshiaki Nakano

发明人： Yutaka Kai ,  Yasuhiko Aoki ,  Eric Gouardes ,  Yoshiaki Nakano

IPC分类号： H01J40/14 ,  H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q2011/002 ,  H04Q2011/0039 ,  H04Q2011/0049

摘要： An optical switching system having a transmission node. The transmission node includes a bit pattern processing unit for processing a bit pattern of transmitted data to stabilize optical power of a frame signal light to be monitored and a frame signal light producing unit for producing frame signal light to be transmitted on the basis of the bit pattern processed by the bit pattern processing unit.

摘要翻译： 一种具有传输节点的光交换系统。 发送节点包括：位图案处理单元，用于处理发送数据的位模式以稳定要监视的帧信号光的光功率;以及帧信号发光单元，用于根据该位产生要发送的帧信号光 图案处理单元处理的图案。

公开(公告)号：US07366426B2

公开(公告)日：2008-04-29

申请号：US10787137

申请日：2004-02-27

申请人： Yutaka Kai ,  Hideyuki Miyata

发明人： Yutaka Kai ,  Hideyuki Miyata

IPC分类号： H04B10/04 ,  H04B10/12

CPC分类号： H04J14/0205 ,  H04B10/572 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/022

摘要： A wavelength stabilizing filter has a wavelength transmission characteristic curve that has its peak in a wavelength located between a first continuous set band and a second continuous set band longer in wavelength than the first set band, and that linearly drops from the peak toward the shorter wavelength side than the first set band and also toward the longer wavelength side longer than the second set band. A control unit generates a control signal needed to enable an optical tunable filter to extract signal light with a predetermined wavelength from an inputted WDM signal, based on light transmitted through the wavelength stabilizing filter.

摘要翻译： 波长稳定滤波器具有波长传输特性曲线，波长传播特性曲线在位于第一连续设定波段和波长比第一设定波段长的第二连续设定波段之间的波长处具有峰值，并且从峰值朝向较短波长线性地下降 并且还朝向比第二设定频带长的较长波长侧。 控制单元基于通过波长稳定滤波器透射的光产生使光学可调谐滤波器从输入的WDM信号中提取具有预定波长的信号光所需的控制信号。

公开(公告)号：US07308168B2

公开(公告)日：2007-12-11

申请号：US11194565

申请日：2005-08-02

申请人： Yutaka Takita ,  Yutaka Kai

发明人： Yutaka Takita ,  Yutaka Kai

IPC分类号： G02B6/35 ,  G02F

CPC分类号： H04Q11/0005 ,  H04Q2011/0049

摘要： The present invention relates to an optical switch apparatus made to successively carry out the route switching with respect to frame signal light inputted through various paths while eliminating the dispersion of an output power value. In the optical switch apparatus, input side deflecting units are disposed in corresponding relation to a plurality of input ports and output side deflecting units are disposed in corresponding relation to a plurality of output ports. Each input side deflecting unit and each output side deflecting unit are constructed in a manner such that a plurality of optical deflecting elements made to deflect signal light in response to an electric field applied are arranged in a cascade fashion, and the optical deflecting element constituting the input side deflecting unit or the output side deflecting unit is made so as to variably adjust the level of signal light to be outputted from the output side deflecting unit to the output port.

摘要翻译： 光开关装置技术领域本发明涉及一种在消除输出功率值的偏差的同时，相对于通过各种路径输入的帧信号光依次进行路由切换的光开关装置。 在光开关装置中，输入侧偏转单元以与多个输入端口对应的关系设置，输出侧偏转单元以与多个输出端口对应的关系设置。 每个输入侧偏转单元和每个输出侧偏转单元被构造成使得响应于所施加的电场而使信号光偏转的多个光学偏转元件以级联的方式布置，并且光​​学偏转元件构成 输入侧偏转单元或输出侧偏转单元被制成为可变地调节从输出侧偏转单元输出到输出端口的信号光的电平。

公开(公告)号：US20070147841A1

公开(公告)日：2007-06-28

申请号：US11681463

申请日：2007-03-02

申请人： Yutaka Takita ,  Yutaka Kai ,  Yasuhiko Aoki ,  Kyosuke Sone

发明人： Yutaka Takita ,  Yutaka Kai ,  Yasuhiko Aoki ,  Kyosuke Sone

IPC分类号： H04J14/02

CPC分类号： H04J14/028 ,  G02F2203/585 ,  H04J14/0204 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0221 ,  H04J14/0283 ,  H04J14/029 ,  H04J14/0294

摘要： Optical add/drop nodes are used in a network having a pair of optical transmission paths for transmitting optical signals in opposite directions to each other. Each add/drop node comprises a variable split ratio optical coupler for splitting an optical signal output from a transmitter. The split ratio of the variable split ratio optical coupler is set such that the optical power levels of the signals added through the respective optical add/drop nodes are equal to one another respectively on the pair of optical transmission paths.

摘要翻译： 光分插节点用于具有一对光传输路径的网络中，用于将光信号彼此相反的方向传输。 每个添加/分出节点包括用于分离从发射机输出的光信号的可变分光比光耦合器。 可变分频比光耦合器的分频比被设置为使得通过相应的光分插节点添加的信号的光功率电平分别在一对光传输路径上彼此相等。

公开(公告)号：US20070116404A1

公开(公告)日：2007-05-24

申请号：US11363209

申请日：2006-02-28

申请人： Takashi Nakano ,  Masaji Noguchi ,  Tatsuji Satou ,  Tomohiro Ueno ,  Yutaka Kai ,  Yutaka Takita

发明人： Takashi Nakano ,  Masaji Noguchi ,  Tatsuji Satou ,  Tomohiro Ueno ,  Yutaka Kai ,  Yutaka Takita

IPC分类号： G02B6/26

CPC分类号： G02F1/31

摘要： A response-time storing unit stores a response time from start of output of driving force required for switching paths until stabilization of the driving force, for each of the paths to be connected. A driving-force correcting unit corrects output level of the driving force, starting correction of the output level of the driving force after the response time for a specified path stored in the response-time storing unit has passed since output of the driving force required for switching to the specified path started.

摘要翻译： 响应时间存储单元存储从切换路径所需的驱动力的输出开始直到驱动力的稳定的响应时间，对于要连接的每个路径。 驱动力校正单元校正驱动力的输出水平，从存储在响应时间存储单元中的指定路径的响应时间开始校正驱动力的输出水平，由此输出所需的驱动力 切换到指定的路径开始。

公开(公告)号：US20060067696A1

公开(公告)日：2006-03-30

申请号：US11038515

申请日：2005-01-21

申请人： Yutaka Kai

发明人： Yutaka Kai

IPC分类号： H04J14/02

CPC分类号： H04J14/0283 ,  H04J14/0204 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0227 ,  H04J14/0238 ,  H04J14/028 ,  H04J14/0284

摘要： Provided are a plurality of fixed wavelength drop filters 35 demultiplexing optical signals having a plurality of different fixed wavelengths, a plurality of fixed wavelength add filters 36 provided corresponding respectively to the fixed wavelength drop filters 35 and adding the optical signals having the fixed wavelengths wavelength division multiplexed light flowing along a transmission path 1, a first optical branching unit 31 branching part of the wavelength division multiplexed light flowing along the transmission path 1, and a variable wavelength drop filter 32 demultiplexing the optical signal having the wavelength corresponding to a specified value from the wavelength division multiplexed light branched by the first optical branching unit 31.

摘要翻译： 提供了多个固定波长分离滤波器35，其对具有多个不同固定波长的光信号进行解复用，多个固定波长加法滤波器36分别对应于固定波长下降滤波器35，并将具有固定波长波长的光信号 沿着传输路径1流动的多路复用光，沿着传输路径1流动的波分复用光的一部分的第一光分路单元31和将具有对应于指定值的波长的光信号解复用的可变波长丢失滤波器32， 由第一光分支单元31分支的波分复用光。