公开(公告)号：US08867927B2

公开(公告)日：2014-10-21

申请号：US12879820

申请日：2010-09-10

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

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

IPC: H04B10/04

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US08849113B2

公开(公告)日：2014-09-30

申请号：US13409813

申请日：2012-03-01

Applicant: Hiroki Ooi

Inventor： Hiroki Ooi

IPC: H04J14/00 ,  H04J14/02 ,  H04Q11/00

CPC classification number: H04Q11/0005 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/026 ,  H04Q2011/0016 ,  H04Q2011/0075

Abstract: A wavelength selective switch includes a wavelength dispersing element, a wavelength converging element, multiple transmission control elements, and a controller. The wavelength dispersing element performs wavelength dispersion of input signal light. The transmission control element divides input signal light into wavelength bands within a channel band and transmits or cuts off the divided input signal light. The wavelength converging element converges signal light having respective wavelengths produced from the transmission control elements for output. The controller controls a transmittance of the transmission control element of at least one of the low and high frequency sides in a channel band. The wavelength selective switch sets as a cutoff band at least one of predetermined bands on the low and high frequency sides, narrows a transmission band of the input signal light to be wavelength-multiplexed, deletes an overlapped band of optical spectra, and outputs the transmission signal light, thereby suppressing crosstalk.

Abstract translation: 波长选择开关包括波长分散元件，波长会聚元件，多个传输控制元件和控制器。 波长分散元件进行输入信号光的波长色散。 传输控制元件将输入信号光分成通道频带内的波段，并传输或切断划分的输入信号光。 波长会聚元件会收敛由传输控制元件产生的各波长的信号光，以进行输出。 控制器控制通道频带中的低频侧和高频侧中的至少一个的发送控制元件的透射率。 波长选择开关将低频侧和高频侧的预定频带中的至少一个设定为截止频带，使波长多路复用的输入信号光的发送频带变窄，从而删除重叠的光谱带，并输出发送 信号光，从而抑制串扰。

公开(公告)号：US08331779B2

公开(公告)日：2012-12-11

申请号：US12659270

申请日：2010-03-02

Applicant: Hiroki Ooi ,  Akira Miura ,  Tsuyoshi Yamamoto ,  Naoki Hashimoto

Inventor： Hiroki Ooi ,  Akira Miura ,  Tsuyoshi Yamamoto ,  Naoki Hashimoto

IPC: H04J14/00

CPC classification number: G02B6/29313 ,  G02B6/2931 ,  G02B6/29383 ,  G02B6/3512 ,  G02B6/356 ,  G02B26/0833 ,  H04J14/0204 ,  H04J14/0208 ,  H04J14/0212 ,  H04J14/0213

Abstract: An OADM in a wavelength division multiplexing transmission system includes a wavelength selection switch that selects a predetermined wavelength from a multiple optical signal obtained by multiplexing a phase modulated signal and an intensity modulated signal and outputs the selected wavelength signal to a predetermined output port. The wavelength selection switch has a different delay for each wavelength of the multiple optical signal. For example, the wavelength selection switch includes a mirror array. Optical paths from the surfaces of mirrors arranged on the mirror array to the diffraction grating are different in the case of adjacent mirrors.

Abstract translation: 波分复用传输系统中的OADM包括波长选择开关，其从通过复用相位调制信号和强度调制信号获得的多个光信号中选择预定波长，并将所选择的波长信号输出到预定输出端口。 波长选择开关对于多个光信号的每个波长具有不同的延迟。 例如，波长选择开关包括反射镜阵列。 在相邻反射镜的情况下，从反射镜阵列上布置在反射镜阵列上的反射镜的表面的光路不同。

公开(公告)号：US08295703B2

公开(公告)日：2012-10-23

申请号：US12585084

申请日：2009-09-02

Applicant: Akira Miura ,  Hiroki Ooi ,  Takafumi Terahara

Inventor： Akira Miura ,  Hiroki Ooi ,  Takafumi Terahara

IPC: H04J14/02

CPC classification number: H04Q11/0005 ,  H04B10/25133 ,  H04J14/0205 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04Q2011/0039 ,  H04Q2011/0049

Abstract: Where add optical signals have k different bit rates, an add controller is connected to k (

Abstract translation: 在添加光信号具有k个不同比特率的情况下，添加控制器连接到N个输入端口的k（

公开(公告)号：US07869715B2

公开(公告)日：2011-01-11

申请号：US11785896

申请日：2007-04-20

Applicant: Hiroki Ooi ,  Hiroshi Onaka ,  Takeshi Hoshida

Inventor： Hiroki Ooi ,  Hiroshi Onaka ,  Takeshi Hoshida

IPC: H04B10/12

CPC classification number: H04B10/25133

Abstract: A variable dispersion compensating unit compensates an optical signal, and changes the compensation amount according to a control signal that has a given frequency. After demodulation of the compensated optical signal, error conditions of the signal are monitored and an error signal is output. A band pass filter filters the error signal for a component having a frequency equal to or less than the given frequency. Based on the component and on the control signal, a synchronous detecting circuit generates a compensation amount modification signal. The compensation amount modification signal is superposed on the control signal.

Abstract translation: 可变色散补偿单元补偿光信号，并根据具有给定频率的控制信号改变补偿量。 在对补偿的光信号进行解调之后，监视信号的误差状况并输出误差信号。 带通滤波器滤波具有等于或小于给定频率的频率的分量的误差信号。 基于分量和控制信号，同步检测电路产生补偿量修正信号。 补偿量修正信号叠加在控制信号上。

公开(公告)号：US20100135664A1

公开(公告)日：2010-06-03

申请号：US12654752

申请日：2009-12-30

Applicant: Hiroki Ooi ,  Takashi Iwabuchi ,  Takafumi Terahara ,  Junichi Kumasako ,  George Ishikawa ,  Tomoo Takahara

Inventor： Hiroki Ooi ,  Takashi Iwabuchi ,  Takafumi Terahara ,  Junichi Kumasako ,  George Ishikawa ,  Tomoo Takahara

IPC: H04J14/02

CPC classification number: H04B10/25133 ,  H04B2210/258

Abstract: In order to compensate for chromatic dispersion ad dispersion slope over an entire wavelength band of the optical signal, the wavelength band is split into a plurality of bands, and chromatic dispersion compensation is made to make chromatic dispersion in a central wavelength of each of the bands zero.

Abstract translation: 为了补偿在光信号的整个波长带上的色散和色散斜率，波长带被分成多个频带，并且进行色散补偿以使得每个频带的中心波长的色散 零。

公开(公告)号：US07711270B2

公开(公告)日：2010-05-04

申请号：US11316941

申请日：2005-12-27

Applicant: Hiroki Ooi ,  Takafumi Terahara ,  Jens C. Rasmussen ,  Akira Miura ,  Akihiko Isomura ,  Yuichi Akiyama

Inventor： Hiroki Ooi ,  Takafumi Terahara ,  Jens C. Rasmussen ,  Akira Miura ,  Akihiko Isomura ,  Yuichi Akiyama

IPC: H04B10/02 ,  H04J14/02

CPC classification number: H04J14/0294 ,  H04B10/032 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/022 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0286 ,  H04J14/0295

Abstract: The optical node connects N networks to each other (where N is an integer larger than one). Each of the N networks respectively includes a first transmission path and a second transmission path. The optical node includes a switching unit that connects the first transmission path of one network of the N networks to other (N−1) networks; a failure detector that detects failure in the first transmission path of the network; and a control unit that causes the switching unit to connect the second transmission path of the network to the other (N−1) networks when the failure is detected.

Abstract translation: 光节点将N个网络相互连接（其中N是大于1的整数）。 N个网络中的每一个分别包括第一传输路径和第二传输路径。 光节点包括将N个网络的一个网络的第一传输路径连接到其他（N-1）个网络的交换单元; 检测网络的第一传输路径中的故障的故障检测器; 以及控制单元，当检测到故障时，使得切换单元将网络的第二传输路径连接到另一（N-1）网络。

公开(公告)号：US20100028007A1

公开(公告)日：2010-02-04

申请号：US12585084

申请日：2009-09-02

Applicant: Akira Miura ,  Hiroki Ooi ,  Takafumi Terahara

Inventor： Akira Miura ,  Hiroki Ooi ,  Takafumi Terahara

IPC: H04J14/02

CPC classification number: H04Q11/0005 ,  H04B10/25133 ,  H04J14/0205 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04Q2011/0039 ,  H04Q2011/0049

Abstract: Where add optical signals have k different bit rates, an add controller is connected to k (

Abstract translation: 在添加光信号具有k个不同比特率的情况下，添加控制器连接到N个输入端口的k（

公开(公告)号：US07620321B2

公开(公告)日：2009-11-17

申请号：US11092547

申请日：2005-03-29

Applicant: Akira Miura ,  Hiroki Ooi ,  Takeshi Hoshida ,  Takafumi Terahara

Inventor： Akira Miura ,  Hiroki Ooi ,  Takeshi Hoshida ,  Takafumi Terahara

IPC: H04J14/00

CPC classification number: H04Q11/0005 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04Q2011/0009 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/003 ,  H04Q2011/0032

Abstract: An optical transmitting apparatus is configured such that K pieces of output ports of optical path switching units whose input port is connected to k-th input transmission path are connected to first to K-th output transmission paths except for the k-th output transmission path and to the k-th input port of a dropping unit, and the optical path switching units and the dropping unit outputs light of wavelength which is part or all of WDM light received from said input port from a specific output port, and can output light having a wavelength different from that of the light output from said specific output port from an output port different from said specific output port. Accordingly, while largely reducing the number of optical fiber patch cords necessary in an optical transmitting apparatus and largely reducing the number of spare ports, the flexible expansion of apparatus function can be realized.

Abstract translation: 光发送装置被配置为使得输入端口连接到第k输入传输路径的光路切换单元的K个输出端口连接到除第k输出传输路径之外的第一至第K输出传输路径 并将光路切换部和滴下部从特定的输出端口输出从所述输入口接收到的WDM光的一部分或全部的波长的光，并输出光 具有与从所述特定输出端口输出的光的波长不同于与所述特定输出端口不同的输出端口的波长。 因此，在大大减少光发送装置所需的光纤跳线的数量的同时大大减少备用端口的数量的情况下，可以实现设备功能的灵活扩展。

公开(公告)号：US07616893B2

公开(公告)日：2009-11-10

申请号：US10781783

申请日：2004-02-20

Applicant: Hiroki Ooi ,  Takashi Iwabuchi ,  Takafumi Terahara ,  George Ishikawa

Inventor： Hiroki Ooi ,  Takashi Iwabuchi ,  Takafumi Terahara ,  George Ishikawa

IPC: H04J14/02

CPC classification number: H04J14/0201 ,  H04B10/2513

Abstract: A repeating apparatus disposed at an end point of each divisional repeating interval of a light transmission line performs a first dispersion compensation step, an optical add/drop multiplexing step and a second dispersion compensation step to perform repeating transmission. The ratio of an over compensation amount at the second dispersion compensation step to the sum of dispersion compensation amounts at the first and second dispersion compensation steps is set so as to gradually vary together with the transmission distance from the terminal apparatus for transmission at which the repeating apparatus is disposed on the light transmission line so that degradation of wavelengths to be received by the terminal apparatus for reception is suppressed while dispersion compensation is performed with a high degree of accuracy at each optical add/drop multiplexing point on the transmission line.

Abstract translation: 设置在光传输线的每个分割重复间隔的终点处的中继装置执行第一色散补偿步骤，光分插复用步骤和第二色散补偿步骤，以执行重复发送。 在第二色散补偿步骤中的过度补偿量与第一和第二色散补偿步骤之间的色散补偿量之和的比率被设置为随着与重复发送的终端装置的传输距离一起逐渐变化 装置设置在光传输线上，从而抑制由终端装置接收的波长的劣化，同时在传输线上的每个光分插复用点处以高精度执行色散补偿。