公开(公告)号：US07970278B2

公开(公告)日：2011-06-28

申请号：US11745946

申请日：2007-05-08

申请人： Susumu Kinoshita ,  Koji Takeguchi ,  Satoru Odate ,  Cechan Tian

发明人： Susumu Kinoshita ,  Koji Takeguchi ,  Satoru Odate ,  Cechan Tian

IPC分类号： H04B10/00 ,  H04B10/08

CPC分类号： H04J14/0291 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： A flexible open ring optical network includes a plurality of nodes connected by twin or other suitable optical rings. Each node is operable to passively add and passively drop traffic from the rings. The nodes may include a transport element for each ring. The transport elements include an optical splitter element and an optical combiner element. The optical splitter element is operable to passively combine an add signal including local add traffic and a first transport signal including ingress traffic from a coupled optical ring to generate a second transport signal including egress traffic for transmission on the coupled optical ring. The optical combiner element is coupled to the optical splitter element and is operable to passively split a third transport signal including the ingress traffic to generate a drop signal including local drop traffic and a fourth transport signal including the ingress traffic. Protection switching may be provided by selectively openable switches disposed in and distributed around the rings.

公开(公告)号：US07826743B2

公开(公告)日：2010-11-02

申请号：US10996707

申请日：2004-11-22

申请人： Cechan Tian ,  Susumu Kinoshita

发明人： Cechan Tian ,  Susumu Kinoshita

IPC分类号： H04B10/00

CPC分类号： H04J14/0283 ,  H04J14/0204 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/022 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0228

摘要： An optical network includes an access ring, a local ring, one or more add/drop nodes (ADNs), a first gateway and a second gateway. The access ring couples the plurality of gateways and transmits optical signals to and from the gateways, the optical signals comprising multiple wavelengths each wavelength operable to carry traffic. The local ring couples one or more of the ADNs and transmits optical signals to and from the ADNs. Additionally, the ADNs are capable of adding and dropping traffic to and from the local ring in one or more wavelengths.The first gateway is capable of receiving broadcast traffic on the access ring, the broadcast traffic transmitted in one or more wavelengths of the optical signals transmitted on the access ring and forwarding, on the access ring, a first copy of the broadcast traffic received on the access ring. The first gateway is further capable of forwarding, to the local ring, a second copy of the broadcast traffic received on the access ringThe second gateway is capable of receiving local traffic originating from one or more of the ADNs on the local ring and forwarding the local traffic to the access ring. The second gateway is further capable of receiving, from the local ring, broadcast traffic forwarded to the local ring by the first gateway and terminating the broadcast traffic received from the local ring.

摘要翻译： 光网络包括接入环，本地环，一个或多个添加/分出节点（ADN），第一网关和第二网关。 接入环耦合多个网关并向网关发送光信号，光信号包括多个波长，每个波长可操作以携带业务。 本地环耦合一个或多个ADN，并向ADN发送光信号和从ADN发送光信号。 另外，ADN能够在一个或多个波长中添加和丢弃来自本地环的业务。 第一网关能够在接入环上接收广播流量，在接入环上发送的光信号的一个或多个波长中发送的广播流量，并且在接入环上转发在接入环上接收的广播业务的第一副本 访问环。 第一网关还能够向本地环转发在接入环上接收到的广播流量的第二副本。第二网关能够接收源自本地环上的一个或多个ADN的本地业务，并转发 本地流量到接入环。 第二网关还能够从本地环路接收由第一网关转发到本地环的广播流量，并且终止从本地环路接收到的广播流量。

公开(公告)号：US20060250682A1

公开(公告)日：2006-11-09

申请号：US11084504

申请日：2005-03-18

申请人： Cechan Tian ,  Susumu Kinoshita

发明人： Cechan Tian ,  Susumu Kinoshita

IPC分类号： H01S3/00

CPC分类号： H04B10/07951 ,  H04B10/077 ,  H04B10/07955

摘要： Reducing polarization dependence of a dispersion variation monitor includes receiving an optical signal. The optical signal is split into a first polarized signal having first photons and a second polarized signal having second photons. The first photons are received at a first material of a first detector, where the first material is operable to produce a reaction in response to the arrival of a predetermined number of photons. The second photons are received at a second material of a second detector, where the second material is substantially similar to the first material. A first current produced by the first material in response to receiving the first photons and a second current produced by the second material in response to receiving the second photons are monitored. Whether there is wavelength dispersion variation among the plurality of components is established in accordance with the first current and the second current.

摘要翻译： 降低色散变化监测器的偏振相关性包括接收光信号。 光信号被分成具有第一光子的第一偏振信号和具有第二光子的第二偏振信号。 第一光子以第一检测器的第一材料接收，其中第一材料可操作以响应于预定数量的光子的到达而产生反应。 第二光子被接收在第二检测器的第二材料处，其中第二材料基本上类似于第一材料。 监测由响应于接收第一光子而由第一材料响应于接收第二光子而由第一材料产生的第一电流和由第二材料产生的第二电流。 根据第一电流和第二电流建立多个分量中是否存在波长色散变化。

公开(公告)号：US07076163B2

公开(公告)日：2006-07-11

申请号：US10108741

申请日：2002-03-27

申请人： Susumu Kinoshita ,  Koji Takeguchi ,  Satoru Odate ,  Cechan Tian

发明人： Susumu Kinoshita ,  Koji Takeguchi ,  Satoru Odate ,  Cechan Tian

IPC分类号： H04B10/08 ,  H04B10/20 ,  H04J14/02

CPC分类号： H04J14/0291 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： The method and system for testing during operation of an open ring network includes opening a ring of the network at the node. Traffic circulating on the ring is dropped in the node to a monitoring element prior to or at the opening of the ring in the node. At the monitoring element, a signal received from the ring is tested. During tested and while the ring is open, traffic continues to be communicated between each node on at least one of the ring or a second ring each connecting the nodes of the network.

摘要翻译： 开放环网运行期间的测试方法和系统包括在节点处打开网络环。 环路上流通的通信在节点之前或在该节点的环路开放期间被丢弃到监视单元中。 在监控元件处，测试从环接收的信号。 在测试期间，并且当环路打开时，流量继续在连接网络节点的环或者第二环中的至少一个上的每个节点之间进行通信。

公开(公告)号：US20060133802A1

公开(公告)日：2006-06-22

申请号：US11015208

申请日：2004-12-17

申请人： Cechan Tian ,  Susumu Kinoshita

发明人： Cechan Tian ,  Susumu Kinoshita

IPC分类号： H04B10/00 ,  G02F1/00

CPC分类号： H04J14/0295 ,  H04B10/032 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： An optical network includes an optical ring that is capable of transmitting, between two or more nodes, a plurality of working traffic streams that include traffic transmitted in one of a plurality of wavelengths. A node is capable of transmitting, in a first wavelength, a first protection traffic stream associated with a first working traffic stream, in response to an interruption of the first working traffic stream. A node is also capable of transmitting, in a second wavelength, a second protection traffic stream associated with a second working traffic stream, in response to an interruption of the second working traffic stream. The optical network also includes a regeneration element capable of selectively regenerating the first protection traffic stream. The regeneration element is also capable of tuning the regeneration element to receive traffic in the second wavelength and of selectively regenerating the second protection traffic stream.

摘要翻译： 光网络包括光环，其能够在两个或更多个节点之间传送包括以多个波长中的一个发射的业务的多个工作业务流。 响应于第一工作业务流的中断，节点能够以第一波长发射与第一工作业务流相关联的第一保护业务流。 响应于第二工作业务流的中断，节点还能够以第二波长发送与第二工作业务流相关联的第二保护业务流。 光网络还包括能够选择性地再生第一保护业务流的再生元件。 再生元件还能够调整再生元件以接收处于第二波长的通信并且有选择地再生第二保护业务流。

公开(公告)号：US20060051091A1

公开(公告)日：2006-03-09

申请号：US10933552

申请日：2004-09-03

申请人： Susumu Kinoshita ,  Ashwin Gumaste ,  Olga Vassilieva ,  Cechan Tian

发明人： Susumu Kinoshita ,  Ashwin Gumaste ,  Olga Vassilieva ,  Cechan Tian

IPC分类号： H04B10/20

CPC分类号： H04J14/0283 ,  H04J14/0204 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0219 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0294

摘要： A method and system for a data centric architecture in an optical network are provided. In one embodiment, a method and system for a data centric architecture in an optical network includes an optical ring. A number of local nodes are coupled to the optical ring and are configured to receive traffic at a receiving wavelength by optically broadcasting with electrical tag discrimination. Each local node is also configured to transmit traffic at an assigned wavelength different from the transmitting wavelengths assigned to the other local nodes. The transmitting wavelengths are each transmitted at a bandwidth less than the receiving wavelength. A data center node is coupled to the optical ring and operable to receive traffic from the local nodes, sort at least some of the traffic based on the destination of the traffic, and transmit the traffic at the receiving wavelength to the destination.

公开(公告)号：US07957644B2

公开(公告)日：2011-06-07

申请号：US11745974

申请日：2007-05-08

申请人： Susumu Kinoshita ,  Koji Takeguchi ,  Satoru Odate ,  Cechan Tian

发明人： Susumu Kinoshita ,  Koji Takeguchi ,  Satoru Odate ,  Cechan Tian

IPC分类号： H04B10/08 ,  H04B10/20 ,  H04J14/02

CPC分类号： H04J14/0291 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： A flexible open ring optical network includes a plurality of nodes connected by twin or other suitable optical rings. Each node is operable to passively add and passively drop traffic from the rings. The nodes may include a transport element for each ring. The transport elements include an optical splitter element and an optical combiner element. The optical splitter element is operable to passively combine an add signal including local add traffic and a first transport signal including ingress traffic from a coupled optical ring to generate a second transport signal including egress traffic for transmission on the coupled optical ring. The optical combiner element is coupled to the optical splitter element and is operable to passively split a third transport signal including the ingress traffic to generate a drop signal including local drop traffic and a fourth transport signal including the ingress traffic. Protection switching may be provided by selectively openable switches disposed in and distributed around the rings.

摘要翻译： 柔性开环光网络包括通过双或其它合适的光环连接的多个节点。 每个节点都可以被动地添加和被动地从环中删除流量。 节点可以包括用于每个环的传输元件。 传输元件包括光分路器元件和光组合器元件。 光分路器元件可操作地被动组合包括本地增加业务的添加信号和包括来自耦合光环路的入口业务的第一传输信号，以产生包括用于在耦合的光环上传输的出口业务的第二传输信号。 光学组合器元件耦合到光分路器元件，并且可操作以被动地分裂包括入口业务的第三传输信号，以产生包括本地丢弃业务的丢弃信号和包括入口业务的第四传输信号。 可以通过设置在环中并分布在环周围的选择性可开启的开关来提供保护切换。

公开(公告)号：US20070206493A1

公开(公告)日：2007-09-06

申请号：US11745974

申请日：2007-05-08

申请人： Susumu Kinoshita ,  Koji Takeguchi ,  Satoru Odate ,  Cechan Tian

发明人： Susumu Kinoshita ,  Koji Takeguchi ,  Satoru Odate ,  Cechan Tian

IPC分类号： G01R31/08

CPC分类号： H04J14/0291 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： A flexible open ring optical network includes a plurality of nodes connected by twin or other suitable optical rings. Each node is operable to passively add and passively drop traffic from the rings. The nodes may include a transport element for each ring. The transport elements include an optical splitter element and an optical combiner element. The optical splitter element is operable to passively combine an add signal including local add traffic and a first transport signal including ingress traffic from a coupled optical ring to generate a second transport signal including egress traffic for transmission on the coupled optical ring. The optical combiner element is coupled to the optical splitter element and is operable to passively split a third transport signal including the ingress traffic to generate a drop signal including local drop traffic and a fourth transport signal including the ingress traffic. Protection switching may be provided by selectively openable switches disposed in and distributed around the rings.

公开(公告)号：US07120360B2

公开(公告)日：2006-10-10

申请号：US11031639

申请日：2005-01-06

申请人： Cechan Tian ,  Susumu Kinoshita

发明人： Cechan Tian ,  Susumu Kinoshita

IPC分类号： H04B10/00

CPC分类号： H04J14/0291 ,  H04J14/0283

摘要： An optical access network includes a first ring and a second ring communicating optical signals in opposite directions. The network also includes an access node coupled to both rings that adds traffic in a first wavelength of a first optical signal communicated on the first ring. Furthermore, the network includes a hub node coupled to each ring and coupled to an optical core network. The hub node receives the first optical signal, forwards a first copy of the signal to a first wavelength blocking unit that terminates the traffic in the first wavelength, and forwards a second copy of the signal to a first network interconnection element that forwards the traffic in the first wavelength to the core network. Furthermore, upon detection of an interruption of the traffic in the first wavelength on the first ring, the access node adds the traffic in a second wavelength of a second optical signal communicated on the second ring. In addition, the hub node receives the second optical signal, forwards a first copy of the signal to a second wavelength blocking unit that terminates the traffic in the second wavelength, and forwards a second copy of the signal to a second network interconnection element that forwards the traffic in the second wavelength to the core network.

摘要翻译： 光接入网络包括在相反方向上传送光信号的第一环和第二环。 网络还包括耦合到两个环的接入节点，其增加在第一环上传送的第一光信号的第一波长的业务。 此外，网络包括耦合到每个环并耦合到光核心网络的集线器节点。 集线器节点接收第一光信号，将信号的第一拷贝转发到终止第一波长的业务的第一波长阻塞单元，并将该信号的第二副本转发给转发业务的第一网络互连元件 第一波长到核心网。 此外，在检测到第一环上的第一波长的业务中断时，接入节点将业务加到在第二环上传送的第二光信号的第二波长。 此外，集线器节点接收第二光信号，将信号的第一拷贝转发到终止第二波长的业务的第二波长阻塞单元，并将信号的第二副本转发到转发的第二网络互连元件 流量在第二波长到核心网。

公开(公告)号：US20060133803A1

公开(公告)日：2006-06-22

申请号：US11015222

申请日：2004-12-17

申请人： Cechan Tian ,  Susumu Kinoshita

发明人： Cechan Tian ,  Susumu Kinoshita

IPC分类号： H04B10/00

CPC分类号： H04J14/0295 ,  H04B10/032 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： An optical network includes an optical ring capable of transmitting traffic in one of a plurality of wavelengths of an optical signal between a plurality of nodes. The nodes transmit a plurality of working traffic streams in a plurality of working wavelengths. In response to an interruption in a first working traffic stream, a node transmits, in a protection wavelength, a first protection traffic stream that is associated with the first working traffic stream. Furthermore, in response to an interruption in a second working traffic stream, a node transmits, in the protection wavelength, a second protection traffic stream that is associated with the second working traffic stream, such that the first protection traffic stream and the second protection traffic stream share, at different times, the protection wavelength.

摘要翻译： 光网络包括能够以多个节点之间的光信号的多个波长中的一个波长发送业务的光环。 节点以多个工作波长发送多个工作业务流。 响应于第一工作业务流中的中断，节点以保护波长发送与第一工作业务流相关联的第一保护业务流。 此外，响应于第二工作业务流中断，节点以保护波长发送与第二工作业务流相关联的第二保护业务流，使得第一保护业务流和第二保护业务 流分享，在不同的时间，保护波长。