公开(公告)号：US20050226550A1

公开(公告)日：2005-10-13

申请号：US11144607

申请日：2005-06-06

申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimuto

发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimuto

IPC分类号： G02B6/30 ,  G02B5/30 ,  G02B6/12 ,  G02B6/122 ,  G02F1/01 ,  G02F1/11 ,  G02F1/125 ,  G02F1/31 ,  H04J14/02 ,  G02B6/26

CPC分类号： H04J14/0221 ,  G02F1/0121 ,  G02F2203/585 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/0797

摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

公开(公告)号：US06462844B1

公开(公告)日：2002-10-08

申请号：US09236326

申请日：1999-01-25

申请人： Yutaka Kai ,  Hiroshi Onaka

发明人： Yutaka Kai ,  Hiroshi Onaka

IPC分类号： H04J1402

CPC分类号： H04B10/2525 ,  H04B10/25073 ,  H04B2210/252 ,  H04B2210/254 ,  H04B2210/256

摘要： In a wavelength-division multiplexing transmission technique, a loss difference compensator for compensating a loss difference of an optical signal at each wavelength generated in a wavelength-division-multiplexed optical signal due to a wavelength-dependent transmission loss characteristic of an optical transmission line is disposed to the optical transmission line for transmitting the wavelength-division-multiplexed optical signal having a wide wavelength band in which optical signals at a plurality of wavelengths are wavelength-division-multiplexed to compensate the loss difference of the optical signal at each wavelength generated in the wavelength-division-multiplexed optical signal due to the wavelength-dependent transmission loss characteristic of the optical transmission line and a dispersion compensator, thereby transmitting the wavelength-division-multiplexed optical signal in a wide wavelength band for a long distance.

摘要翻译： 在波分复用传输技术中，由于光传输线路的波长相关的传输损耗特性，用于补偿在波分复用光信号中产生的每个波长的光信号的损耗差的损耗差补偿器是 配置在光传输线路上，用于传输具有宽波长带的波分复用光信号，其中多个波长的光信号被波分复用以补偿在每个波长处产生的每个波长的光信号的损耗差 由于光传输线的波长相关的传输损耗特性和色散补偿器导致的波分复用光信号，从而在宽波长带中长波长的波分复用光信号发射。

公开(公告)号：US08582984B2

公开(公告)日：2013-11-12

申请号：US12621130

申请日：2009-11-18

申请人： Yutaka Kai

发明人： Yutaka Kai

IPC分类号： H04B10/00 ,  H04J14/02 ,  H04B10/572

CPC分类号： H04B10/572 ,  H03K5/01 ,  H03K5/08 ,  H04B10/508

摘要： A waveform controller includes a monitor configured to monitor a waveform of an output pulse obtained by the response of a responsive element to a driving signal supplied thereto and a driving waveform shaper configured to shape a waveform of the driving signal based on a monitoring result obtained by the monitor.

摘要翻译： 波形控制器包括：监视器，被配置为监视由响应元件响应于所提供的驱动信号而获得的输出脉冲的波形;以及驱动波形整形器，其被配置为基于由 监视器。

公开(公告)号：US20100266293A1

公开(公告)日：2010-10-21

申请号：US12754178

申请日：2010-04-05

申请人： Kyosuke Sone ,  Yutaka Kai ,  George Ishikawa ,  Susumu Kinoshita

发明人： Kyosuke Sone ,  Yutaka Kai ,  George Ishikawa ,  Susumu Kinoshita

IPC分类号： H04B10/00

CPC分类号： H04B10/2971 ,  H04B10/2914 ,  H04Q11/0067 ,  H04Q2011/0079 ,  H04Q2011/0086

摘要： A relay apparatus including: a first interface 11 that branches an optical signal that is input in a first direction from one side of the optical transmission line, and directs the optical signal to a first path and a second path, the first path being a processing path of an optical signal having a first transmission speed, the second path being a processing path of an optical signal having a second transmission speed that is different from the first transmission speed; a processing section 12 that executes processing on an optical signal propagating through each of the paths in accordance with a corresponding transmission speed; and a second interface 13 that binds the first path and the second path of the optical signal on which the processing is executed by the processing section, by means of wavelength multiplexing and directs to the other end of the optical transmission line.

摘要翻译： 一种中继装置，包括：第一接口11，其分支从光传输线的一侧沿第一方向输入的光信号，并将光信号引导到第一路径和第二路径，第一路径是处理 具有第一传输速度的光信号的路径，第二路径是具有与第一传输速度不同的第二传输速度的光信号的处理路径; 处理部分12，根据相应的传输速度对通过每条路径传播的光信号执行处理; 以及第二接口13，其通过波长复用来绑定由处理部分执行处理的光信号的第一路径和第二路径，并引导到光传输线的另一端。

公开(公告)号：US07817923B2

公开(公告)日：2010-10-19

申请号：US11275420

申请日：2005-12-30

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

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

IPC分类号： H04B10/04

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。

公开(公告)号：US07761007B2

公开(公告)日：2010-07-20

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： H04B10/20 ,  H04J14/02

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.

公开(公告)号：US07433601B2

公开(公告)日：2008-10-07

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 ,  H04J14/00

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。

公开(公告)号：US07406262B2

公开(公告)日：2008-07-29

申请号：US11082958

申请日：2005-03-18

申请人： Goji Nakagawa ,  Hideyuki Miyata ,  Yutaka Kai ,  Hiroshi Onaka ,  Setsuo Yoshida ,  Kyosuke Sone ,  Tomohiro Ueno

发明人： Goji Nakagawa ,  Hideyuki Miyata ,  Yutaka Kai ,  Hiroshi Onaka ,  Setsuo Yoshida ,  Kyosuke Sone ,  Tomohiro Ueno

IPC分类号： H04J14/02

CPC分类号： H04B10/572 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/022 ,  H04J14/0227

摘要： An optical transmission device improved in quality and reliability of OADM function and permitting configuration of highly-flexible, economical OADM networks. A wavelength tunable filter variably selects a wavelength according to a control frequency. A filter controller applies the control frequency to the filter while scanning wavelength over an entire signal bandwidth, to detect, from a reference wavelength monitor signal supplied thereto, a reference control frequency which permits the filter to select a reference wavelength and according to which wavelength is matched. On receiving a wavelength selection request, the controller obtains a target control frequency from the reference control frequency and the position of a target wavelength relative to the reference wavelength, and applies the obtained frequency to the filter. A reference wavelength filter transmits the reference wavelength therethrough. A light-receiving element monitors the transmitted reference wavelength to generate the monitor signal.

摘要翻译： 一种光传输设备改进了OADM功能的质量和可靠性，并允许配置高度灵活，经济的OADM网络。 波长可调滤波器根据控制频率可变地选择波长。 滤波器控制器在整个信号带宽上扫描波长时将滤波器的控制频率施加到滤波器，从提供给其的参考波长监测信号中检测出允许滤波器选择参考波长的参考控制频率，根据哪个波长是 匹配。 在接收到波长选择请求时，控制器从参考控制频率和目标波长相对于参考波长的位置获得目标控制频率，并将获得的频率应用于滤波器。 参考波长滤波器透过参考波长。 光接收元件监测发射的参考波长以产生监测信号。

公开(公告)号：US07362925B2

公开(公告)日：2008-04-22

申请号：US11144607

申请日：2005-06-06

申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

IPC分类号： G02F1/1335

CPC分类号： H04J14/0221 ,  G02F1/0121 ,  G02F2203/585 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/0797

摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

摘要翻译： 本发明旨在提供一种用于高精度地控制光学装置的操作设置的控制方法和控制装置，以便在控制之后立即根据与信号光对应的期望关系可靠地获得特性 开始。 为此，本发明的控制装置包括将输入到光学装置的主信号光的一部分分支的光耦合器，根据与光学装置相同的控制参数进行操作的监视光学装置，以及 处理由光耦合器分支的监视光，接收由监视光学装置处理的监视光的光接收器，检测由光接收器接收的监视光之间的关系的检测电路以及光接收器的波长或光功率 信号灯，以及控制电路，其根据由检测电路检测到的关系调整光学装置的控制参数以控制操作设置，使得光学装置的特性变得能够实现与 信号灯。

公开(公告)号：US20080068051A1

公开(公告)日：2008-03-20

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： H03K3/00

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。