公开(公告)号：US20070264011A1

公开(公告)日：2007-11-15

申请号：US11826889

申请日：2007-07-19

申请人： Kyosuke Sone ,  Yutaka Kai

发明人： Kyosuke Sone ,  Yutaka Kai

IPC分类号： H04B10/08

CPC分类号： H04L43/0811 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0258 ,  H04J14/0283 ,  H04J14/0294 ,  H04J14/0295 ,  H04L12/437 ,  H04L41/06 ,  H04L41/0816 ,  H04L41/082

摘要： A network managing apparatus is connected to one of multiple OADM nodes that execute optical communication on an optical ring network configured by a two-line transmission path including of an active line and a backup line. The apparatus includes a storing unit that stores arrangement information of the OADM nodes and operating wavelength information of optical signals transmitted by the nodes. A controlling unit updates the operating wavelength information retained in the storing unit based on fault information from the OADM nodes and distributes the updated operating wavelength information to the OADM nodes.

摘要翻译： 网络管理装置连接到在由包括有效线路和备用线路的双线路传输路径配置的光环网络上执行光通信的多个OADM节点之一。 该装置包括存储单元，其存储OADM节点的布置信息和由节点发送的光信号的工作波长信息。 控制单元基于来自OADM节点的故障信息来更新保存在存储单元中的操作波长信息，并将更新的操作波长信息分发给OADM节点。

公开(公告)号：US20060269185A1

公开(公告)日：2006-11-30

申请号：US11213955

申请日：2005-08-30

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Hiroyasu Ito ,  Hideyuki Miyata ,  Yutaka Kai

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Hiroyasu Ito ,  Hideyuki Miyata ,  Yutaka Kai

IPC分类号： G02F1/335

CPC分类号： G02F1/113

摘要： A radio-frequency-signal generator generates an RF signal. An optical monitor monitors a first intensity of a reference signal and a second intensity of a drop signal. A reference-frequency determining unit determines, based on the first intensity, a first frequency of an RF signal that causes the AOTF to output the reference signal. A temperature detecting unit detects a temperature of the AOTF. A frequency calculating unit calculates a second frequency of an RF signal that causes the AOTF to output a drop signal of a desired wavelength. A control unit controls the RF-signal generator to generate the RF signal of the second frequency calculated.

摘要翻译： 射频信号发生器产生RF信号。 光学监视器监视参考信号的第一强度和下降信号的第二强度。 参考频率确定单元基于第一强度确定使AOTF输出参考信号的RF信号的第一频率。 温度检测单元检测AOTF的温度。 频率计算单元计算使AOTF输出所需波长的液滴信号的RF信号的第二频率。 控制单元控制RF信号发生器以产生所计算的第二频率的RF信号。

公开(公告)号：US07120321B2

公开(公告)日：2006-10-10

申请号：US10265767

申请日：2002-10-08

申请人： Hideyuki Miyata ,  Yutaka Kai ,  Isao Tsuyama

发明人： Hideyuki Miyata ,  Yutaka Kai ,  Isao Tsuyama

IPC分类号： G02F1/335

CPC分类号： G02F1/116 ,  G02F2201/16 ,  G02F2203/585

摘要： The present invention relates to a control method and device for an optical filter, and a primary object of the present invention is to achieve accurate tracking control of the optical filter. Disclosed herein is a control method for an optical filter including first and second optical filter units cascaded, each having an input and first and second outputs. The first output of the first optical filter unit is connected to the input of the second optical filter unit. First light output from the second output of the first optical filter unit is converted into a first electrical signal having a level corresponding to the power of the first light, and second light output from the second output of the second optical filter unit is converted into a second electrical signal having a level corresponding to the power of the second light. A control signal is generated according to the first and second electrical signals. Then, the first and second optical filter units are controlled according to the control signal. According to this method, accurate tracking control of the optical filter can be achieved.

公开(公告)号：US20060219870A1

公开(公告)日：2006-10-05

申请号：US11377219

申请日：2006-03-17

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

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

摘要： In an optical switch apparatus which continuously carries out the route switching on frame signal light inputted from various routes while eliminating differences in output power value, a first delaying unit, which is interposed between a first branching unit and an input terminal, delays the input of the frame signal light to a switch module until the drive voltage supply control on the frame signal light in a drive voltage supply control unit reaches a stable condition.

摘要翻译： 在从各种路径输入的帧信号光连续地执行路由切换同时消除输出功率值的差异的光开关装置中，插入在第一分支单元和输入端之间的第一延迟单元延迟输入 帧信号发光到开关模块，直到驱动电压控制单元中的帧信号光的驱动电压供应控制达到稳定状态。

公开(公告)号：US20060171715A1

公开(公告)日：2006-08-03

申请号：US11313960

申请日：2005-12-22

申请人： Hideyuki Miyata ,  Goji Nakagawa ,  Yutaka Kai

发明人： Hideyuki Miyata ,  Goji Nakagawa ,  Yutaka Kai

IPC分类号： H04J14/00

CPC分类号： H04Q11/0062 ,  H04B10/27 ,  H04B10/272 ,  H04J14/0201 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0227 ,  H04J14/0228 ,  H04J14/0238 ,  H04J14/0241 ,  H04J14/0282 ,  H04J14/0283 ,  H04Q11/0005 ,  H04Q2011/0035 ,  H04Q2011/0092 ,  H04Q2011/0094 ,  H04Q2011/0096

摘要： An optical network system is disclosed by which flexible wavelength path setting can be performed in accordance with tree-shaped and star-shaped network topology. A central node includes a multiplexing section for multiplexing optical signals transmitted from user nodes and inputted thereto, and a central node side branching section for branching the optical signal multiplexed by the multiplexing section and supplying the branched optical signals to the user nodes. Each of the user nodes includes a transmission section capable of outputting an optical signal to which transmission wavelengths different from those of the other user nodes are set, and a reception section for extracting selected optical wavelength components from the branched light supplied thereto from the central node side branching section and extracting optical signals from the extracted optical wavelength components.

摘要翻译： 公开了一种光网络系统，通过其可以根据树形和星形网络拓扑来执行灵活的波长路径设置。 中央节点包括多路复用部分，用于复用从用户节点发送的光信号并输入其中;以及中央节点侧分支部分，用于分支由多路复用部分复用的光信号，并将分支的光信号提供给用户节点。 每个用户节点包括能够输出与其他用户节点的发送波长不同的发送波长的光信号的发送部分，以及从中央节点向其提供的分支光提取所选择的光波长分量的接收部分 并从所提取的光波长分量中提取光信号。

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：US08538259B2

公开(公告)日：2013-09-17

申请号：US13524223

申请日：2012-06-15

申请人： Yutaka Kai

发明人： Yutaka Kai

IPC分类号： H04J14/00

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0238 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257

摘要： In an optical access network system in which a relay station receives a wavelength multiplexed and time-division multiplexed optical signal (WDM optical signal) from an optical network, and the relay station transmits optical signals having specified wavelengths to subscriber units, the relay station demultiplexes the WDM optical signal into a plurality of groups with one group having a plurality of optical signals having a fixed wavelength interval between signals, then divides the optical signals of each group into k branches (k is the number of subscriber units) and inputs the signals to optical switches, and by turning ON/OFF the optical switches such that they are spaced in time, inputs the branched optical signals to the respective specified subscribers units.

公开(公告)号：US08331780B2

公开(公告)日：2012-12-11

申请号：US12363203

申请日：2009-01-30

申请人： Yutaka Kai

发明人： Yutaka Kai

IPC分类号： H04J14/00

CPC分类号： H04J14/0221 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0267 ,  H04J14/0284 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/0049 ,  H04Q2011/005 ,  H04Q2213/1301

摘要： An apparatus has a plurality of transmitters for transmitting optical packet signals having wavelengths; a multiplexer for multiplexing the optical packet signals transmitted by the plurality of transmitters; a packet scheduler controlling a timing at which each of the transmitters transmits the optical packet signal; and an assister for controlling power of assist light in accordance with a signal from the packet scheduler and causing the assist light to be wavelength-multiplexed with the wavelength multiplexed light such that a total sum of power of the wavelength multiplexed light and the power of the assist light is held constant under a predetermined condition.

摘要翻译： 一种装置具有用于发射具有波长的光分组信号的多个发射机; 多路复用器，用于复用由多个发射机发送的光分组信号; 控制每个发射机发送光分组信号的定时的分组调度器; 以及辅助器，用于根据来自分组调度器的信号来控制辅助光的功率，并使辅助光与波长复用光波长复用，使得波长复用光的功率总和和 辅助光在预定条件下保持恒定。

公开(公告)号：US20120082465A1

公开(公告)日：2012-04-05

申请号：US12879820

申请日：2010-09-10

申请人： Yuichi Akiyama ,  Takeshi Hoshida ,  Akira Miura ,  Yutaka Kai ,  Hiroki Ooi ,  Jens Rasmussen ,  Kentaro Nakamura ,  Naoki Kuwata ,  Yoshinori Nishizawa ,  Tomoo Takahara ,  Masahiro Yuki

发明人： Yuichi Akiyama ,  Takeshi Hoshida ,  Akira Miura ,  Yutaka Kai ,  Hiroki Ooi ,  Jens Rasmussen ,  Kentaro Nakamura ,  Naoki Kuwata ,  Yoshinori Nishizawa ,  Tomoo Takahara ,  Masahiro Yuki

IPC分类号： H04B10/06 ,  H04B10/00

CPC分类号： G02F1/2255 ,  G02F1/0123 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/5053 ,  H04B10/50575 ,  H04B10/50577 ,  H04B10/50595 ,  H04B10/5162 ,  H04B10/5165 ,  H04B10/5561 ,  H04B10/66 ,  H04B10/677

摘要： A phase shift unit provides a prescribed phase difference (π/2, for example) between a pair of optical signals transmitted via a pair of arms constituting a data modulation unit. A low-frequency signal f0 is superimposed on one of the optical signals. A signal of which phase is shifted by π/2 from the low-frequency signal f0 is superimposed on the other optical signal. A pair of the optical signals is coupled, and a part of which is converted into an electrical signal by a photodiode. 2f0 component contained in the electrical signal is extracted. Bias voltage provided to the phase shift unit is controlled by feedback control so that the 2f0 component becomes the minimum.

摘要翻译： 相移单元在经由构成数据调制单元的一对臂发送的一对光信号之间提供规定的相位差（＆pgr / / 2）。 低频信号f0叠加在一个光信号上。 将相位从低频信号f0移位了＆pgr / / 2的信号叠加在另一个光信号上。 一对光信号被耦合，其一部分由光电二极管转换成电信号。 提取包含在电信号中的2f0分量。 通过反馈控制来控制提供给相移单元的偏压，使得2f0分量成为最小值。