公开(公告)号：US5760937A

公开(公告)日：1998-06-02

申请号：US784441

申请日：1997-01-16

申请人： George Ishikawa ,  Hiroshi Nishimoto ,  Hiroki Ooi ,  Motoyoshi Sekiya ,  Hiroaki Tomofuji

发明人： George Ishikawa ,  Hiroshi Nishimoto ,  Hiroki Ooi ,  Motoyoshi Sekiya ,  Hiroaki Tomofuji

IPC分类号： H04B10/2507 ,  H04B10/071 ,  H04B10/2519 ,  H04B10/2525 ,  H04B10/2537 ,  H04B10/2563 ,  H04J14/02 ,  H04J14/08 ,  H04L7/00 ,  H04L7/027 ,  H04L7/033 ,  H04L7/06 ,  H04Q11/00 ,  H04Q11/04

CPC分类号： H04B10/25133 ,  H04B10/0795 ,  H04B10/07957 ,  H04B10/0797 ,  H04B10/0799 ,  H04B10/25137 ,  H04B10/2525 ,  H04B10/255 ,  H04B10/2563 ,  H04B10/66 ,  H04B10/67 ,  H04B10/675 ,  H04J14/086 ,  H04L7/0037 ,  H04L7/0075 ,  H04Q11/0001 ,  G02F2203/21 ,  H04B2210/252 ,  H04B2210/254 ,  H04J14/02 ,  H04J14/0298 ,  H04J14/08 ,  H04L7/027 ,  H04L7/06

摘要： An optical demultiplexer comprises a clock regenerating circuit for regenerating a clock signal for each optical signal channel from an optical multiplexed signal. An optical switch separates each optical signal channel from the optical multiplexed signal in accordance with the clock signal regenerated by the clock regenerating circuit. An identification information extraction circuit extracts identification information contained in each optical signal channel separated by the optical switch. A control circuit changes output destinations so that each optical signal channel is output to a designated destination in accordance with the identification information extracted by the identification information extraction circuit. The identification information is appended as identification data to a data signal represented by the optical signal, and the identification information extraction circuit extracts the identification data contained in the data signal reconstructed from each optical signal channel. A signal switching circuit is provided between outputs of the optical switch and output destinations, wherein the control circuit changes output destinations by changing connection relationships in the signal switching circuit between the outputs of the optical switch and the output destinations, for example, by changing the phase of the clock signal supplied to the optical switch.

摘要翻译： 光解复用器包括时钟再生电路，用于从光复用信号再生每个光信号通道的时钟信号。 根据由时钟再生电路再生的时钟信号，光开关将光信号通道与光复用信号分开。 识别信息提取电路提取由光开关分离的每个光信号通道中包含的识别信息。 控制电路改变输出目的地，使得根据由识别信息提取电路提取的识别信息将每个光信号信道输出到指定的目的地。 识别信息作为识别数据附加到由光信号表示的数据信号，并且识别信息提取电路提取包含在从每个光信号信道重建的数据信号中的识别数据。 信号切换电路设置在光开关和输出目的地的输出之间，其中控制电路通过改变光开关输出与输出目的地之间的信号切换电路中的连接关系来改变输出目的地，例如通过改变 提供给光开关的时钟信号的相位。

公开(公告)号：US07542677B2

公开(公告)日：2009-06-02

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 ,  H04B10/12 ,  H04B10/001

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的剩余分散目标值与加法分集复用（OADM）之一之间， 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。

公开(公告)号：US07274878B2

公开(公告)日：2007-09-25

申请号：US10404045

申请日：2003-04-02

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： H04B10/00 ,  H04B10/12 ,  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的剩余分散目标值与加法分集复用（OADM）之一之间， 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。

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。

公开(公告)号：US09083485B2

公开(公告)日：2015-07-14

申请号：US13445756

申请日：2012-04-12

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

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

IPC分类号： H04J14/02 ,  H04J14/00

CPC分类号： H04J14/0256 ,  H04J14/0212 ,  H04J14/0257 ,  H04J14/026 ,  H04J14/0298

摘要： According to an aspect of an embodiment, a method of spectrum defragmentation in an optical network may include assigning an optical signal within an optical network to a first frequency slot that spans a first portion of an optical spectrum of the optical network. The method may also include constructing a frequency slot dependency map based on the assignation of the optical signal to the frequency slot. The method may also include reassigning, as a result of an optical signal departure event, the optical signal to a second frequency slot based on the frequency slot dependency map. The second frequency slot may span a second portion of the optical spectrum of the optical network.

摘要翻译： 根据实施例的一个方面，光网络中的频谱碎片整理的方法可以包括将光网络内的光信号分配到跨越光网络的光谱的第一部分的第一频率时隙。 该方法还可以包括基于将光信号分配给频率隙来构建频率间隙依赖关系图。 该方法还可以包括根据光信号离开事件将光信号重新分配到基于频率槽依赖性映射的第二时隙。 第二频隙可以跨越光网络的光谱的第二部分。

公开(公告)号：US08989581B2

公开(公告)日：2015-03-24

申请号：US13427754

申请日：2012-03-22

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： H04J14/02 ,  H04B10/572

CPC分类号： H04B10/572

摘要： An optical network for reassigning a carrier wavelength of an optical signal may include first and second optical nodes. The first optical node may be configured to transmit an optical signal along an optical path. The first optical node may also be configured to tune a carrier wavelength of the optical signal from a first wavelength to a second wavelength, according to a continuous function, to reassign the carrier wavelength of the optical signal. The second optical node may be configured to receive the optical signal and may include a feedback loop configured to adjust a wavelength of a reference optical signal to approximate the carrier wavelength of the optical signal.

摘要翻译： 用于重新分配光信号的载波波长的光网络可以包括第一和第二光节点。 第一光节点可以被配置为沿着光路传输光信号。 第一光节点还可以被配置为根据连续功能将光信号的载波波长从第一波长调谐到第二波长，以重新分配光信号的载波波长。 第二光节点可以被配置为接收光信号，并且可以包括被配置为调整参考光信号的波长以近似光信号的载波波长的反馈回路。

公开(公告)号：US08346965B2

公开(公告)日：2013-01-01

申请号：US12942586

申请日：2010-11-09

申请人： Qiong Zhang ,  Paparao Palacharla ,  Qingya She ,  Xi Wang ,  Motoyoshi Sekiya

发明人： Qiong Zhang ,  Paparao Palacharla ,  Qingya She ,  Xi Wang ,  Motoyoshi Sekiya

IPC分类号： G06F15/16

CPC分类号： H04J14/0257 ,  H04J14/0212

摘要： A method may include constructing an auxiliary graph for a network comprising a plurality of network elements, the network elements having an Internet Protocol layer, a lower layer, and a wavelength layer, the auxiliary graph including a plurality of directed edges, the plurality of directed edges indicative of connectivity of components of the plurality of network elements. The method may further include: (i) deleting directed edges from the auxiliary graph whose available bandwidth is lower than the required bandwidth of a selected demand; (ii) finding a path for the demand on the auxiliary graph via remaining directed edges; (iii) deleting at least one directed edge of the auxiliary graph on the wavelength layer along the path; (iv) adding lower layer lightpath edges to the auxiliary graph for a lower layer lightpath for the path; and (v) converting lower layer lightpaths to Internet Protocol lightpaths if a conversion condition is satisfied.

摘要翻译： 方法可以包括为包括多个网络元件的网络构建辅助图形，所述网络元件具有互联网协议层，下层和波长层，所述辅助图形包括多个有向边缘，所述多个定向 指示多个网络元件的组件的连接性的边缘。 该方法还可以包括：（i）从可用带宽低于所选择的需求的所需带宽的辅助图中删除有向边; （ii）通过剩余的有向边找到对辅助图的需求的路径; （iii）沿所述路径删除所述波长层上的辅助图形的至少一个有向边缘; （iv）将下层光路边缘添加到辅助图形，用于路径的下层光路; 和（v）如果满足转换条件，则将下层光路转换为因特网协议光路。

公开(公告)号：US20090220241A1

公开(公告)日：2009-09-03

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： 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：US07366422B2

公开(公告)日：2008-04-29

申请号：US11085419

申请日：2005-03-22

申请人： Motoyoshi Sekiya ,  Yuuichi Kawahata

发明人： Motoyoshi Sekiya ,  Yuuichi Kawahata

IPC分类号： H04B10/12

CPC分类号： H01L31/14 ,  G02B6/29358 ,  G02B6/29394 ,  G02B6/29395 ,  G02B6/29398 ,  G02B6/4246 ,  H04B10/25133

摘要： A dispersion compensating device having a VIPA plate which is an optical component, a lens, and a mirror includes high reflectivity side monitor means for monitoring the light that is input into the VIPA plate and emitted from the first reflecting surface. By this, the passage characteristics of the dispersion compensating device (VIPA) can be equalized to the input light wavelength (output wavelength of light transmitter) in a highly stable manner while restraining the loss of main signal light to the minimum.

摘要翻译： 具有作为光学部件的VIPA板，透镜和反射镜的色散补偿装置包括高反射率侧监视装置，用于监视输入到VIPA板并从第一反射表面发射的光。 由此，可以以高度稳定的方式将色散补偿装置（VIPA）的通过特性与输入光波长（光发送器的输出波长）相等，同时将主信号光的损失抑制到最小。

公开(公告)号：US07359645B2

公开(公告)日：2008-04-15

申请号：US10945904

申请日：2004-09-22

申请人： Takuya Miyashita ,  Motoyoshi Sekiya ,  Ryosuke Goto

发明人： Takuya Miyashita ,  Motoyoshi Sekiya ,  Ryosuke Goto

IPC分类号： H04B10/12 ,  H04B10/00

CPC分类号： H04B10/25253

摘要： In an optical transmission system, each of optical transmission devices for transmitting wavelength-multiplexed light measures a real dispersion quantity. On the basis the real dispersion quantity measured in a measurement step and design dispersion quantities of respective transmission spans, a management control section computes compensation quantities of the respective transmission spans. The management control section notifies the compensation quantities computed in a computation step to the respective optical transmission devices. On the basis of the notified compensation quantities, the respective optical transmission devices compensate for the dispersion quantities. Thereby, optimal dispersion compensating values using a bypass design are acquired individually for optical paths included in WDM light. Dispersion is automatically, dynamically compensated, thereby inhibiting deterioration of a signal.

摘要翻译： 在光传输系统中，用于发送波长多路复用光的每个光传输装置测量实际的色散量。 基于在测量步骤中测量的实际色散量和各个传输跨度的设计色散量，管理控制部分计算各个传输跨度的补偿量。 管理控制部将计算步骤计算出的补偿量通知各光传输装置。 基于通知的补偿量，各个光传输装置补偿分散量。 因此，对于包括在WDM光中的光路单独获取使用旁路设计的最佳色散补偿值。 色散自动地进行动态补偿，从而抑制信号的劣化。