公开(公告)号：US08644704B2

公开(公告)日：2014-02-04

申请号：US13091804

申请日：2011-04-21

申请人： Olga I Vassilieva ,  Motoyoshi Sekiya ,  Martin Bouda

发明人： Olga I Vassilieva ,  Motoyoshi Sekiya ,  Martin Bouda

IPC分类号： H04B10/08 ,  H04B17/00 ,  H04J14/02

CPC分类号： H04J14/0221 ,  H04J14/0257 ,  H04J14/0271 ,  H04J14/0279

摘要： In accordance with an embodiment of the present disclosure a method for adaptively spacing channels of an optical network comprises determining a first desired power level of a first channel of an optical network. The method further comprises determining a second desired power level of a second channel of the optical network, the second desired power level being less than the first desired power level. Additionally, the method comprises determining a first spectral space between the first channel and one or more channels neighboring the first channel based at least on the first desired power level. The method also comprises determining a second spectral space between the second channel and one or more channels neighboring the second channel based at least on the second desired power level, the second spectral space less than the first spectral space.

摘要翻译： 根据本公开的实施例，用于自适应地间隔光网络的信道的方法包括确定光网络的第一信道的第一期望功率电平。 该方法还包括确定光网络的第二信道的第二期望功率电平，第二期望功率电平小于第一期望功率电平。 另外，该方法包括至少基于第一期望功率电平来确定第一信道与与第一信道相邻的一个或多个信道之间的第一频谱空间。 所述方法还包括至少基于所述第二期望功率电平，所述第二频谱空间小于所述第一频谱空间来确定所述第二信道与所述第二信道相邻的一个或多个信道之间的第二频谱空间。

公开(公告)号：US08611446B2

公开(公告)日：2013-12-17

申请号：US12623850

申请日：2009-11-23

申请人： Taizo Maeda ,  Motoyoshi Sekiya ,  Takuya Miyashita ,  Rikiya Watanabe

发明人： Taizo Maeda ,  Motoyoshi Sekiya ,  Takuya Miyashita ,  Rikiya Watanabe

IPC分类号： H04L5/12

CPC分类号： H04L25/03248 ,  H04L25/03318

摘要： A communication system is provided for communicating over a network. A plurality of transmission devices are disposed within a network and connected by transmission channels. A control device calculates initial data required during an initial operation of the transmission devices and sets the initial data to the transmission devices. The transmission devices perform reception processing using maximum likelihood sequence estimation, and the control device obtains, as the initial data, with respect to paths that are signal communication pathways between the transmission devices and in accordance with transmission states of individual paths, initial likelihood information that is initial-stage likelihood information for performing the maximum likelihood sequence estimation.

摘要翻译： 提供一种通过网络通信的通信系统。 多个传输设备被布置在网络内并通过传输信道连接。 控制装置计算在发送装置的初始操作期间所需的初始数据，并将初始数据设置为发送装置。 传输设备使用最大似然序列估计来执行接收处理，并且控制设备获得关于作为发送设备之间的信号通信路径的路径并且根据各个路径的传输状态作为初始数据，初始似然信息 是用于执行最大似然序列估计的初始阶段似然信息。

公开(公告)号：US08559829B2

公开(公告)日：2013-10-15

申请号：US13176643

申请日：2011-07-05

申请人： Inwoong Kim ,  Paparao Palacharla ,  Xi Wang ,  Motoyoshi Sekiya

发明人： Inwoong Kim ,  Paparao Palacharla ,  Xi Wang ,  Motoyoshi Sekiya

IPC分类号： H04B10/06 ,  H04J14/00

CPC分类号： H04B10/6165 ,  H04B10/616 ,  H04L27/2697

摘要： In accordance with some embodiments of the present disclosure a method for receiving and processing an optical orthogonal frequency-division multiplexed signal containing a plurality of traffics comprises receiving the optical orthogonal frequency-division multiplexed signal. The method further comprises down-converting the optical orthogonal frequency-division multiplexed signal into the electrical domain to obtain an electrical signal; filtering the electrical signal to obtain a first portion of the electrical signal containing a first of the plurality of traffics and preprocessing the first portion of the electrical signal in a first parallel preprocessor; filtering the electrical signal to obtain a second portion of the electrical signal containing a second of the plurality of traffics and preprocessing the second portion of the electrical signal in a second parallel preprocessor; and combining the preprocessed first and second portions of the electrical signal to yield a combined electrical signal and demodulating the combined electrical signal.

摘要翻译： 根据本公开的一些实施例，用于接收和处理包含多个业务的光学正交频分复用信号的方法包括：接收光学正交频分复用信号。 该方法还包括将光正交频分多路复用信号下变频为电域以获得电信号; 过滤电信号以获得包含多个业务中的第一业务并且在第一并行预处理器中预处理电信号的第一部分的电信号的第一部分; 过滤电信号以获得包含多个业务中的第二业务的电信号的第二部分，并在第二并行预处理器中预处理电信号的第二部分; 以及组合电信号的预处理的第一和第二部分以产生组合的电信号并解调组合的电信号。

公开(公告)号：US20130011138A1

公开(公告)日：2013-01-10

申请号：US13176643

申请日：2011-07-05

申请人： Inwoong Kim ,  Paparao Palacharla ,  Xi Wang ,  Motoyoshi Sekiya

发明人： Inwoong Kim ,  Paparao Palacharla ,  Xi Wang ,  Motoyoshi Sekiya

IPC分类号： H04J14/00

CPC分类号： H04B10/6165 ,  H04B10/616 ,  H04L27/2697

摘要： In accordance with some embodiments of the present disclosure a method for receiving and processing an optical orthogonal frequency-division multiplexed signal containing a plurality of traffics comprises receiving the optical orthogonal frequency-division multiplexed signal. The method further comprises down-converting the optical orthogonal frequency-division multiplexed signal into the electrical domain to obtain an electrical signal; filtering the electrical signal to obtain a first portion of the electrical signal containing a first of the plurality of traffics and preprocessing the first portion of the electrical signal in a first parallel preprocessor; filtering the electrical signal to obtain a second portion of the electrical signal containing a second of the plurality of traffics and preprocessing the second portion of the electrical signal in a second parallel preprocessor; and combining the preprocessed first and second portions of the electrical signal to yield a combined electrical signal and demodulating the combined electrical signal.

摘要翻译： 根据本公开的一些实施例，用于接收和处理包含多个业务的光学正交频分复用信号的方法包括：接收光学正交频分复用信号。 该方法还包括将光正交频分多路复用信号下变频为电域以获得电信号; 过滤电信号以获得包含多个业务中的第一业务并且在第一并行预处理器中预处理电信号的第一部分的电信号的第一部分; 过滤电信号以获得包含多个业务中的第二业务的电信号的第二部分，并在第二并行预处理器中预处理电信号的第二部分; 以及组合电信号的预处理的第一和第二部分以产生组合的电信号并解调组合的电信号。

公开(公告)号：US08121481B2

公开(公告)日：2012-02-21

申请号：US12395709

申请日：2009-03-01

申请人： Toru Katagiri ,  Tomohiro Hashiguchi ,  Yutaka Takita ,  Kazuyuki Tajima ,  Motoyoshi Sekiya ,  Takashi Toyomaki

发明人： Toru Katagiri ,  Tomohiro Hashiguchi ,  Yutaka Takita ,  Kazuyuki Tajima ,  Motoyoshi Sekiya ,  Takashi Toyomaki

IPC分类号： H04B10/08 ,  H04B10/12 ,  H04J14/02

CPC分类号： H04B10/25133 ,  H04J14/0221

摘要： A residual chromatic dispersion target value at a terminal node is set for each wavelength path, and also, candidates of a dispersion compensation amount settable in each chromatic dispersion compensation module on an optical network are set, and further, computation processing is executed for selecting the dispersion compensation amount in each chromatic dispersion compensation module from the candidates so that the sum of errors between the residual chromatic dispersion amounts and the set residual chromatic dispersion target values at the terminal nodes for all of wavelength paths becomes minimum. As a result, for each wavelength path on the optical network, the dispersion compensation amount in each chromatic dispersion compensation module can be designed in optimum so as to satisfy the desired optical signal quality at the terminal node, while considering the residual chromatic dispersion during the transmission.

摘要翻译： 针对每个波长路径设置终端节点的残留色散目标值，并且设置在光网络上的每个色散补偿模块中可设置的色散补偿量的候选，并且还执行计算处理以选择 每个色散补偿模块中的色散补偿量，使得残留色散量与所有波长路径的终端节点处的残留色散目标值之间的误差之和变得最小。 结果，对于光网络上的每个波长路径，可以将每个色散补偿模块中的色散补偿量最优地设计成在终端节点处满足期望的光信号质量，同时考虑到在 传输。

公开(公告)号：US20120008957A1

公开(公告)日：2012-01-12

申请号：US13137933

申请日：2011-09-21

申请人： Takashi Toyomaki ,  Motoyoshi Sekiya

发明人： Takashi Toyomaki ,  Motoyoshi Sekiya

IPC分类号： H04J14/02

CPC分类号： H04B10/0773 ,  H04B2210/074 ,  H04J14/0212 ,  H04J14/0227 ,  H04J14/0258 ,  H04J14/0276

摘要： An optical transmission system includes a plurality of optical nodes that transmits wavelength multiplexing light including a plurality of signal light components having different wavelengths, wherein each of the optical nodes includes superimposed signal light generation circuit which superimposes a low frequency signal having a common frequency on a corresponding signal light component included in the wavelength multiplexing light; low frequency signal extraction circuit which extracts a low frequency signal having a frequency of a given range from a corresponding signal light component; and pass-through node number measurement circuit which measures, for each of the signal light components, a pass-through node number based on the frequency of the low frequency signal extracted by the low frequency signal extraction circuit, the pass-through node number being the number of optical nodes through which the signal light component has passed before being transmitted to a specific optical node.

摘要翻译： 一种光传输系统包括多个发送包括具有不同波长的多个信号光分量的波分复用光的光节点，其中每个光节点包括叠加信号光生成电路，该电路将具有共同频率的低频信号叠加在 包括在波长复用光中的相应信号光分量; 低频信号提取电路，从对应的信号光分量中提取具有给定范围的频率的低频信号; 以及直通节点号测量电路，对于每个信号光分量，测量基于由低频信号提取电路提取的低频信号的频率的直通节点数，直通节点数为 信号光分量在被传输到特定光节点之前经过的光节点的数量。

公开(公告)号：US20100220998A1

公开(公告)日：2010-09-02

申请号：US12656895

申请日：2010-02-18

申请人： Motoyoshi Sekiya

发明人： Motoyoshi Sekiya

IPC分类号： H04B10/08

CPC分类号： H04B10/29 ,  H04B10/291 ,  H04J14/0201 ,  H04J14/0204 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0257 ,  H04J14/026 ,  H04J14/0275

摘要： A repeater includes a reception part configured to receive an optical signal transmitted by wavelength division multiplexing from a preceding repeater in a path from a source to a destination; a determination part configured to determine the channel allocation of the signal received by the reception part by determining a bit rate and a modulation technique with respect to each of channels in the received signal; and a detection part configured to detect a prohibited channel not to be included in the optical signal to be transmitted from the repeater, based on the channel allocation and a predetermined criterion.

摘要翻译： 中继器包括：接收部件，被配置为在从源到目的地的路径中从前一个中继器接收由波分复用发送的光信号; 确定部件，被配置为通过确定相对于接收信号中的每个信道的比特率和调制技术来确定由接收部分接收的信号的信道分配; 以及检测部，其被配置为基于所述信道分配和预定标准来检测不被包括在要从中继器发送的光信号中的禁止信道。

公开(公告)号：US20100128809A1

公开(公告)日：2010-05-27

申请号：US12623850

申请日：2009-11-23

申请人： Taizo Maeda ,  Motoyoshi Sekiya ,  Takuya Miyashita ,  Rikiya Watanabe

发明人： Taizo Maeda ,  Motoyoshi Sekiya ,  Takuya Miyashita ,  Rikiya Watanabe

IPC分类号： H04L5/12

CPC分类号： H04L25/03248 ,  H04L25/03318

摘要： A communication system is provided for communicating over a network. A plurality of transmission devices are disposed within a network and connected by transmission channels. A control device calculates initial data required during an initial operation of the transmission devices and sets the initial data to the transmission devices. The transmission devices perform reception processing using maximum likelihood sequence estimation, and the control device obtains, as the initial data, with respect to paths that are signal communication pathways between the transmission devices and in accordance with transmission states of individual paths, initial likelihood information that is initial-stage likelihood information for performing the maximum likelihood sequence estimation.

摘要翻译： 提供一种通过网络通信的通信系统。 多个传输设备设置在网络内并通过传输信道连接。 控制装置计算在发送装置的初始操作期间所需的初始数据，并将初始数据设置为发送装置。 传输设备使用最大似然序列估计来执行接收处理，并且控制设备获得关于作为发送设备之间的信号通信路径的路径并且根据各个路径的传输状态作为初始数据，初始似然信息 是用于执行最大似然序列估计的初始阶段似然信息。

公开(公告)号：US07689131B2

公开(公告)日：2010-03-30

申请号：US10570840

申请日：2003-11-11

申请人： Kimio Uekama ,  Takehiro Fujita ,  Motoyoshi Sekiya

发明人： Kimio Uekama ,  Takehiro Fujita ,  Motoyoshi Sekiya

IPC分类号： H04B10/02

CPC分类号： H04J14/0246 ,  H04B10/0775 ,  H04B2210/077 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0279

摘要： A WDM system includes a plurality of P to P WDM systems connected for wavelength-multiplexing optical signals of a plurality of wavelengths, transmitting them to a transmission path, transmitting wavelength-division multiplexed light while performing amplification by using optical AMP in the transmission path, and subjecting the wavelength-division multiplexed light to wavelength isolation at the reception side. An OSC which is a monitoring control signal such as a normal optical signal is used closely within one P to P WDM system. However, by transmitting and receiving the OSC between a plurality of P to P WDM systems, it is possible to solve a problem at the system rise. Moreover, since accumulative OSNR data is transmitted up to the P to P WDM system of the final stage, it is possible to detect an accurate OSNR value and a leak ASE light quantity at the end side.

摘要翻译： WDM系统包括多个连接用于多个波长的波分复用光信号的多个P至P WDM系统，将它们发送到传输路径，在通过在传输路径中使用光AMP进行放大的同时发送波分复用光， 并且在接收侧对波分复用光进行波长隔离。 作为监视控制信号的正常光信号的OSC紧密地在一个P到P WDM系统内使用。 然而，通过在多个P至P WDM系统之间发送和接收OSC，可以解决系统上升的问题。 此外，由于累积OSNR数据被传送到最终级的P至P WDM系统，因此可以在端侧检测精确的OSNR值和泄漏的ASE光量。

公开(公告)号：US20080002979A1

公开(公告)日：2008-01-03

申请号：US11892302

申请日：2007-08-21

申请人： Motoyoshi Sekiya ,  Kazuo Yamane ,  Ryosuke Goto ,  Satoru Okano ,  Takehito Okeno

发明人： Motoyoshi Sekiya ,  Kazuo Yamane ,  Ryosuke Goto ,  Satoru Okano ,  Takehito Okeno

IPC分类号： H04J14/02

CPC分类号： H04B10/25253 ,  H04B2210/256 ,  H04J14/0206 ,  H04J14/0213

摘要： Dispersion compensation values are set so as to be transmittable to any path groups in a WDM optical communication system having OADM nodes, which includes transmitting-end and receiving-end terminal nodes; a WDM optical communication transmission line including a plurality of spans each having an optical fiber, the plurality of spans joining the transmitting-end and receiving-end terminal nodes; and a plurality of add drop multiplexing (OADM) nodes disposed on the optical communication transmission line; wherein when taking as the reference a residual dispersion target value of between the transmitting-end terminal and receiving-end terminal nodes, a residual dispersion target value for a node segment between one of the terminal nodes and one of the add drop multiplexing (OADM) nodes and a residual dispersion target value for a node-to-node segment between two of the add drop multiplexing (OADM) nodes are set so as to be proportional to ratios of the span counts in the node segment and in the node-to-node segment, respectively, to the total span count between the transmitting-end and receiving-end terminal nodes.

摘要翻译： 色散补偿值被设置为可以发送到具有包括发送端和接收端终端节点的OADM节点的WDM光通信系统中的任何路径组; WDM光通信传输线，其包括多个具有光纤的跨度，所述多个跨接器连接所述发送端和接收端终端节点; 以及设置在所述光通信传输线上的多个添加分集复用（OADM）节点; 其中，当以发送端终端和接收端终端节点之间的残留分散目标值作为参考时，在一个终端节点之间的节点段之间的残留分散目标值和添加分集复用（OADM）之一， 节点和两个添加分集复用（OADM）节点之间的节点到节点分段的残余分散目标值被设置成与节点分段和节点到节点中的跨度计数的比率成比例， 节点段分别为发送端和接收端终端之间的总宽度计数。