公开(公告)号：US06545784B2

公开(公告)日：2003-04-08

申请号：US09905066

申请日：2001-07-16

申请人： Kazue Okazaki ,  Hiroshi Onaka ,  Hideyuki Miyata ,  Yutaka Kai ,  Terumi Chikama

发明人： Kazue Okazaki ,  Hiroshi Onaka ,  Hideyuki Miyata ,  Yutaka Kai ,  Terumi Chikama

IPC分类号： H04J1402

CPC分类号： H04Q11/0005 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0221 ,  H04M1/274558 ,  H04M1/274583 ,  H04M2250/60 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/0024 ,  H04Q2011/0045 ,  H04Q2011/0049

摘要： M wavelength separating sections receive multiplexed optical signals each having N kinds of wavelengths different. Each of the multiplexed optical signals are separated into N optical signals. M relays conduct optical reproduction and relay to convert each of the N optical signals into electric signals and then produce optical signals modulated with desired optical wavelengths. A refill section mutually refills M sets of the reproduced and relayed optical signals. A focusing section focuses the M sets of optical signals refilled in the refill section. A light source supplies input lights having desired wavelengths, which lights are modulated in the relays. The light source includes N light sources outputting N kinds of optical wavelengths. A multiplexer/brancher multiplexes the lights from the N light sources to produce a multiplexed light and branches the multiplexed light into M×N distributed lights. M wavelength filters distribuitively receive N distributed lights of the M×N distributed lights.

摘要翻译： M个波长分离部分接收各自具有不同N种波长的复用光信号。 复用光信号中的每一个被分离为N个光信号。 M继电器进行光学再现和继电以将N个光信号中的每一个转换为电信号，然后产生用期望的光波长调制的光信号。 重新填充部分相互重新填充M组再现和中继的光信号。 聚焦部分将重新填充的M组光信号聚焦在再填充部分中。 光源提供具有期望波长的输入光，哪些光在继电器中被调制。 光源包括输出N种光波长的N个光源。 多路复用器/分路器复用来自N个光源的光，以产生多路复用的光，并将多路复用的光分支到MxN分布式光。 M波长滤波器分布式接收MxN分布式灯的N个分布式灯。

公开(公告)号：US06285479B1

公开(公告)日：2001-09-04

申请号：US09050105

申请日：1998-03-30

申请人： Kazue Okazaki ,  Hiroshi Onaka ,  Hideyuki Miyata ,  Yutaka Kai ,  Terumi Chikama

发明人： Kazue Okazaki ,  Hiroshi Onaka ,  Hideyuki Miyata ,  Yutaka Kai ,  Terumi Chikama

IPC分类号： H04J1402

CPC分类号： H04Q11/0005 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0221 ,  H04M1/274558 ,  H04M1/274583 ,  H04M2250/60 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/0024 ,  H04Q2011/0045 ,  H04Q2011/0049

摘要： The present invention relates to an optical cross connect unit comprising M wavelength separating sections for receiving multiplexed optical signals each having N kinds of wavelengths different from each other through M optical fibers, respectively, and for wavelength-separating each of the multiplexed optical signals into N optical signals, M optical reproduction relay sections each for conducting an optical reproduction and relay in a manner of making a conversion of each of the N optical signals, wavelength-separated in each of the wavelength separating sections, into an electric signal and then modulating it with a desired optical wavelength, a refill section for mutually refilling M sets of optical signals optically reproduced and relayed in the optical reproduction relay sections, a focusing section for focusing the M sets of optical signals refilled in the refill section, and a light source unit for supplying input lights having desired wavelengths to be modulated in the M optical reproduction relay sections. The light source unit includes N light sources for outputting lights having the N kinds of optical wavelengths, a multiplexing and branching section for multiplexing the lights from the N light sources to produce a multiplexed light having N kinds of optical wavelength components and further for branching the multiplexed light into M×N lights to output them as multiplexed and distributed lights, M wavelength filter sections for distributively receiving N multiplexed and distributed lights of the M×N multiplexed and distributed lights branched in the multiplexing and branching section to output N lights due to the passage of only arbitrary wavelengths of the N kinds of optical wavelengths, and a wavelength setting control section for setting optical wavelengths, which pass through the wavelength filter sections, so that they differ from each other. The N lights from each of the M wavelength filter sections are supplied as the input lights. In the case that many light sources are necessary for the modulation processing by modulators or the like, this optical cross connect unit is also suitable because of using given wavelengths from a small number of light sources for a lot of modulation processing.

公开(公告)号：US08179593B2

公开(公告)日：2012-05-15

申请号：US12406624

申请日：2009-03-18

申请人： Masaji Noguchi ,  Yutaka Kai ,  Setsuo Yoshida

发明人： Masaji Noguchi ,  Yutaka Kai ,  Setsuo Yoshida

IPC分类号： H01S5/00 ,  H03K3/01

CPC分类号： H03K19/018507

摘要： An optical-switch drive circuit including a driver unit that generates, in response to a control signal, an on/off signal for driving a semiconductor optical amplifier gate switch, and a buffer unit having a high input impedance and connected between an output terminal outputting the on/off signal and the semiconductor optical amplifier gate switch. In the optical-switch drive circuit the buffer unit may include a high-resistance voltage divider that is connected with the output terminal, and an operational amplifier that buffers, and provides to the semiconductor optical amplifier gate switch, a divided voltage of the voltage divider.

摘要翻译： 一种光开关驱动电路，包括驱动单元，该驱动单元响应于控制信号产生用于驱动半导体光放大器门极开关的导通/截止信号，以及具有高输入阻抗的缓冲单元，并连接在输出端 开关信号和半导体光放大器门极开关。 在光开关驱动电路中，缓冲单元可以包括与输出端连接的高电阻分压器和缓冲并向半导体光放大器门极开关提供分压电压的运算放大器 。

公开(公告)号：US20110050293A1

公开(公告)日：2011-03-03

申请号：US12926199

申请日：2010-11-01

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

IPC分类号： H03K3/00 ,  H01S5/20

CPC分类号： H04Q11/0005 ,  H03K19/00346 ,  H04Q2011/0013 ,  H04Q2011/0039

摘要： A driving circuit of a semiconductor optical amplifier type gate switch constituting a matrix optical switch is provided with an operation amplifier into which a driving signal is input and from which a current corresponding to the driving signal is output, an inductance element provided at an output terminal of the operation amplifier, and a circuit composed of a diode element and a resistor element connected in parallel and provided between the inductance element and the semiconductor optical amplifier.

摘要翻译： 构成矩阵光开关的半导体光放大型门极开关的驱动电路设置有输入驱动信号的运算放大器，输出与驱动信号对应的电流，设置在输出端子的电感元件 以及由并联连接并设置在电感元件和半导体光放大器之间的二极管元件和电阻元件构成的电路。

公开(公告)号：US07848600B2

公开(公告)日：2010-12-07

申请号：US11727632

申请日：2007-03-27

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

IPC分类号： G02F1/035

CPC分类号： H04Q11/0005 ,  H03K19/00346 ,  H04Q2011/0013 ,  H04Q2011/0039

摘要： A driving circuit of a semiconductor optical amplifier type gate switch constituting a matrix optical switch is provided with an operation amplifier into which a driving signal is input and from which a current corresponding to the driving signal is output, an inductance element provided at an output terminal of the operation amplifier, and a circuit composed of a diode element and a resistor element connected in parallel and provided between the inductance element and the semiconductor optical amplifier.

摘要翻译： 构成矩阵光开关的半导体光放大型门极开关的驱动电路设置有输入驱动信号的运算放大器，输出与驱动信号对应的电流，设置在输出端子的电感元件 以及由并联连接并设置在电感元件和半导体光放大器之间的二极管元件和电阻元件构成的电路。

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：US20080205888A1

公开(公告)日：2008-08-28

申请号：US12002763

申请日：2007-12-19

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H03D9/00 ,  H04Q2011/0011 ,  H04Q2011/0013 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0039

摘要： A drive circuit is provided for a semiconductor optical amplifier type gate switch includes a first transmission path and a second transmission path. The first transmission path includes a common first sub-path between a signal source and a first node; and an individual second sub-path for each of a plurality of operational amplifiers between the first node and a corresponding one of the operational amplifiers. The second transmission path includes an individual third sub-path between each of the operational amplifiers and a second node; and a common fourth sub-path between the second node and the semiconductor optical amplifier type gate switches. Transmission delay times of all the individual second sub-paths are equal, and transmission delay times of all the individual third sub-paths are equal.

摘要翻译： 提供了一种用于半导体光放大器型栅极开关的驱动电路，其包括第一传输路径和第二传输路径。 第一传输路径包括信号源和第一节点之间的公共第一子路径; 以及用于第一节点和运算放大器中的相应一个之间的多个运算放大器中的每一个的单独的第二子路径。 第二传输路径包括每个运算放大器和第二节点之间的单独的第三子路径; 以及第二节点和半导体光放大器型栅极开关之间的公共第四子路径。 所有各个第二子路径的传输延迟时间相等，并且所有各个第三子路径的传输延迟时间相等。

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。