公开(公告)号：US20080199182A1

公开(公告)日：2008-08-21

申请号：US12068026

申请日：2008-01-31

申请人： Hiroki Ooi ,  Akira Miura ,  Takeshi Hoshida ,  Kentaro Nakamura ,  Yasushi Sugaya ,  Ryosuke Goto

发明人： Hiroki Ooi ,  Akira Miura ,  Takeshi Hoshida ,  Kentaro Nakamura ,  Yasushi Sugaya ,  Ryosuke Goto

IPC分类号： H04J14/02

CPC分类号： H04J14/02 ,  H04B10/2513 ,  H04B10/2557 ,  H04J14/0201

摘要： A wavelength division multiplexing system according to the present art adjusts the amount of dispersion compensation (the amount of dispersion compensation of an NZ-DSF and a DCF) every all spans on the basis of the time slot when an intensity modulation signal transmitter outputs an intensity modulation signal and the wavelength interval when a wavelength coupler multiplexes a phase modulation signal (output from a phase modulation signal transmitter) and the intensity modulation signal.

摘要翻译： 根据本发明的波分复用系统根据强度调制信号发射机输出强度的时隙，调整每个跨度的色散补偿量（NZ-DSF和DCF的色散补偿量） 调制信号和波长耦合器复用相位调制信号（相位调制信号发射机的输出）和强度调制信号的波长间隔。

公开(公告)号：US20060203344A1

公开(公告)日：2006-09-14

申请号：US11168433

申请日：2005-06-29

申请人： Akira Miura ,  Hiroki Ooi ,  Yasuhiro Yamauchi ,  Yoshinobu Kubota

发明人： Akira Miura ,  Hiroki Ooi ,  Yasuhiro Yamauchi ,  Yoshinobu Kubota

IPC分类号： H04J14/02 ,  G02B5/18 ,  G02B27/44

CPC分类号： G02B6/29394 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29358 ,  H04B10/25133

摘要： In a chromatic dispersion and dispersion slope compensating apparatus according to the present invention, a WDM light which has been angularly dispersed to a first direction by a VIPA plate, is angularly dispersed to a second direction vertical to the first direction by a diffraction grating, and optical signals of respective wavelengths output from the diffraction grating are reflected by any one of a plurality of three-dimensional mirrors having reflective surfaces of curved shapes different from each other, to be returned to the VIPA plate. Thus, with a simple control mechanism in which the plurality of three-dimensional mirrors are moved to only the second direction, an apparatus capable of variably compensating for the chromatic dispersion and the dispersion slope independent of each other can be provided.

摘要翻译： 在根据本发明的色散和色散斜率补偿装置中，通过VIPA板被成角度地分散到第一方向的WDM光通过衍射光栅成角度地分散到垂直于第一方向的第二方向，并且 从衍射光栅输出的各波长的光信号由具有彼此不同的弯曲形状的反射面的多个三维反射镜中的任意一个反射回VIPA板。 因此，通过使多个三维反射镜仅向第二方向移动的简单控制机构，可以提供能够相互独立地可变地补偿色散和色散斜率的装置。

公开(公告)号：US20060062577A1

公开(公告)日：2006-03-23

申请号：US11017941

申请日：2004-12-22

申请人： Akira Miura ,  Hiroki Ooi ,  Hiroshi Nakamoto

发明人： Akira Miura ,  Hiroki Ooi ,  Hiroshi Nakamoto

IPC分类号： H04J14/02

CPC分类号： H04J14/02 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0224 ,  H04J14/026 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0039 ,  H04Q2011/0081

摘要： According to the present invention, for example, a WDM light containing 10 Gbit/s signal lights and 40 Gbit/s signal light arranged on wavelength grids at 25 GHz intervals is branched into two by an input side optical coupler to be sent to two routes. In one route side, only the 10 Gbit/s signal lights are demultiplexed by a 10 Gbit/s demultiplexer and a plurality of 1×2 optical switches, while in the other route side, only the 40 Gbit/s signal lights are demultiplexed by a 40 Gbit/s demultiplexer and a plurality of 1×2 optical switches. Further, the respectively demultiplexed signal lights are multiplexed for each modulating rate by a 10 Gbit/s multiplexer and a 40 Gbit/s multiplexer, and thereafter further multiplexed by an output side optical coupler to become a WDM light. Thus, it becomes possible to arrange signal lights having different modulating rates at arbitrary wavelengths on wavelength grids at predetermined intervals.

摘要翻译： 根据本发明，例如，以25GHz的间隔配置在波长网格上的10Gbit / s信号灯和40Gbit / s信号光的WDM光由输入侧光耦合器分支为两路，发送到两条路线 。 在一个路由方面，只有10Gbit / s的信号灯被10Gbit / s解复用器和多个1x2光开关解复用，而在另一个路由侧只有40Gbit / s的信号灯被40分解 Gbit / s解复用器和多个1x2光开关。 此外，由10Gbit / s多路复用器和40Gbit / s多路复用器对每个调制率分别复用分离的信号光，然后由输出侧光耦合器进一步复用成为WDM光。 因此，可以以预定间隔将波长格栅上的任意波长的具有不同调制率的信号光布置成可能。

公开(公告)号：US20050226629A1

公开(公告)日：2005-10-13

申请号：US10971735

申请日：2004-10-25

申请人： Hiroki Ooi ,  Akira Miura ,  Kentaro Nakamura ,  George Ishikawa

发明人： Hiroki Ooi ,  Akira Miura ,  Kentaro Nakamura ,  George Ishikawa

IPC分类号： H04B10/2507 ,  H04B10/2525 ,  H04B10/29 ,  H04B10/291 ,  H04B10/556 ,  H04J14/00 ,  H04J14/02 ,  H04B10/12

CPC分类号： H04B10/25133

摘要： A dispersion compensation method comprising the steps of: a) providing a compensation node for each predetermined number of in-line repeaters; b) carrying out dispersion compensation for the in-line repeaters with the different bit rates in common; c) carrying out wavelength demultiplexing on the optical signal for each of the different bit rates in the compensation node; and d) setting an optimum dispersion compensation amount for the optical signal of each bit rate.

摘要翻译： 一种色散补偿方法，包括以下步骤：a）为每个预定数量的串联中继器提供补偿节点; b）以不同比特率共同对串联中继器进行色散补偿; c）对补偿节点中的每个不同比特率的光信号执行波长解复用; 以及d）为每个比特率的光信号设置最佳色散补偿量。

公开(公告)号：US08849113B2

公开(公告)日：2014-09-30

申请号：US13409813

申请日：2012-03-01

申请人： Hiroki Ooi

发明人： Hiroki Ooi

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

CPC分类号： H04Q11/0005 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/026 ,  H04Q2011/0016 ,  H04Q2011/0075

摘要： 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.

摘要翻译： 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：US07869715B2

公开(公告)日：2011-01-11

申请号：US11785896

申请日：2007-04-20

申请人： Hiroki Ooi ,  Hiroshi Onaka ,  Takeshi Hoshida

发明人： Hiroki Ooi ,  Hiroshi Onaka ,  Takeshi Hoshida

IPC分类号： H04B10/12

CPC分类号： H04B10/25133

摘要： 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.

摘要翻译： 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：US07418211B2

公开(公告)日：2008-08-26

申请号：US10793097

申请日：2004-03-05

申请人： Yuichi Akiyama ,  Hiroki Ooi

发明人： Yuichi Akiyama ,  Hiroki Ooi

IPC分类号： H04B10/04

CPC分类号： H04B10/50597 ,  G02F1/0121 ,  G02F1/0123 ,  G02F1/225 ,  G02F2201/16 ,  H04B10/5051 ,  H04B10/50575 ,  H04B10/50577 ,  H04B10/5162 ,  H04B10/58

摘要： An object of the invention is to provide a control system in which the phase shift between drive signals of an optical modulator can be reliably detected and compensated by a simple configuration. To this end, a control apparatus of the invention, for an optical modulator generating a signal light of a CS-RZ modulation system or the like by two LN modulators connected in series, detects the phase shift between drive signals given to the former and latter stage LN modulators, or judges the phase shift between the drive signals based on intensity information of the electric spectrum of the signal light output from the optical modulator, to control the phases of the drive signals so as to minimize the phase shift. As a result, the phase shift between the drive signals can be reliably detected and compensated by an electric circuit with a simple configuration.

摘要翻译： 本发明的目的是提供一种控制系统，其中可以通过简单的配置可靠地检测和补偿光调制器的驱动信号之间的相移。 为此，本发明的控制装置，用于通过串联连接的两个LN调制器产生CS-RZ调制系统等的信号光的光调制器，检测给予前者和后一个的驱动信号之间的相移 或者基于从光调制器输出的信号光的电谱的强度信息来判断驱动信号之间的相移，以控制驱动信号的相位，以使相移最小化。 结果，可以通过具有简单结构的电路可靠地检测和补偿驱动信号之间的相移。

公开(公告)号：US20070264028A1

公开(公告)日：2007-11-15

申请号：US11599277

申请日：2006-11-15

申请人： Masahiro Yuki ,  Kentaro Nakamura ,  Hiroki Ooi ,  Masato Nishihara

发明人： Masahiro Yuki ,  Kentaro Nakamura ,  Hiroki Ooi ,  Masato Nishihara

IPC分类号： H04B10/04

CPC分类号： H04B10/5051 ,  H04B10/5057 ,  H04B10/50577 ,  H04B10/58

摘要： In an optical transmitter of the invention, continuous light from a light source is a (CS)RZ-D(Q)PSK modulated by two optical modulators connected in series, and a part of the optical signal output from a post-stage optical modulator is branched by an output monitor section, and the power of a preset frequency component, excluding a frequency component corresponding to a baud rate, included in an electrical spectrum acquired by photoelectrically converting the branched beams is measured. The relative phase of drive signals applied to the optical modulators is then feed-back controlled so that the power becomes a minimum. As a result, a delay shift due to a temperature change or the like between drive signals applied to respective optical modulators, can be reliably compensated.

摘要翻译： 在本发明的光发射机中，来自光源的连续光是由串联连接的两个光调制器调制的（CS）RZ-D（Q）PSK，并且从后级光调制器输出的一部分光信号 由输出监视部分支，并且测量包括在通过光电转换分支光束获得的电谱中的除波特率对应的频率分量之外的预设频率分量的功率。 然后反馈控制施加到光学调制器的驱动信号的相对相位，使得功率变得最小。 结果，可以可靠地补偿由于施加到各个光学调制器的驱动信号之间的温度变化等引起的延迟偏移。

公开(公告)号：US07266264B2

公开(公告)日：2007-09-04

申请号：US11019205

申请日：2004-12-23

申请人： Hiroshi Nakamoto ,  Hiroki Ooi

发明人： Hiroshi Nakamoto ,  Hiroki Ooi

IPC分类号： G02B6/28 ,  H04J14/02

CPC分类号： H04B10/25073

摘要： The present invention offers a compensation device having a transmission property for collectively compensating inclinations of accumulated transmission properties in a signal wavelength band of light signals of a plurality of channels configuring a wavelength-multiplexed light, among wavelength dependencies of transmission properties of a plurality of sets of light demultiplexers and light multiplexers.

摘要翻译： 本发明提供了一种补偿装置，具有传输特性，用于在构成波长复用光的多个通道的信号的信号波长带中统一地补偿多个集合的传输特性的波长依赖性之间的倾斜度 的光解复用器和光复用器。

公开(公告)号：US20060222367A1

公开(公告)日：2006-10-05

申请号：US11319371

申请日：2005-12-29

申请人： Miki Onaka ,  Yasushi Sugaya ,  Hiroki Ooi

发明人： Miki Onaka ,  Yasushi Sugaya ,  Hiroki Ooi

IPC分类号： H04J14/02

CPC分类号： H04J14/0221 ,  H04B10/296 ,  H04B2210/003 ,  H04B2210/256 ,  H04J14/0201 ,  H04J14/0212

摘要： An optical transmission apparatus includes an optical add drop multiplexer (OADM) that adds/drops an optical signal to/from a transmission path. The optical transmission apparatus further includes a pump light multiplexer and a dispersion compensation fiber that are located downstream of the OADM on the transmission path. The optical transmission apparatus is configured to house a pump light source connectable to the pump light multiplexer to Raman amplify an optical signal in the dispersion compensation fiber.

摘要翻译： 一种光传输装置包括一个光传输分路复用器（OADM），用于将光信号与传输路径相加/放出。 光传输装置还包括位于传输路径上的OADM下游的泵浦光多路复用器和色散补偿光纤。 光传输装置被配置为容纳可连接到泵浦光多路复用器的泵浦光源，以拉曼扩散色散补偿光纤中的光信号。