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：US06891663B2

公开(公告)日：2005-05-10

申请号：US10219246

申请日：2002-08-16

申请人： Susumu Kinoshita ,  Yasushi Sugaya

发明人： Susumu Kinoshita ,  Yasushi Sugaya

IPC分类号： H01S3/067 ,  H01S3/094 ,  H01S3/131 ,  H01S3/23 ,  H04B3/04 ,  H04B10/07 ,  H04B10/2507 ,  H04B10/2525 ,  H04B10/2557 ,  H04B10/2563 ,  H04B10/29 ,  H04B10/294 ,  H04B10/297 ,  H01S3/00

CPC分类号： H04B10/2941 ,  H01S3/06704 ,  H01S3/06725 ,  H01S3/06758 ,  H01S3/094011 ,  H01S3/1301 ,  H01S3/2391 ,  H04B10/25133 ,  H04B10/296 ,  H04B10/2972 ,  H04B2210/256 ,  H04B2210/258

摘要： An optical amplifier, or optical repeater, for amplifying wavelength division multiplexed (WDM) light. A first demultiplexer demultiplexes the WDM light into first and second lights corresponding to different wavelengths in the WDM light. First and second optical amplifiers amplify the first and second lights, respectively. A first multiplexer multiplexes the amplified first and second lights into a multiplexed light. A dispersion compensator compensates for dispersion in the multiplexed light. A second demultiplexer demultiplexes the dispersion compensated, multiplexed light into the first and second lights. Third and fourth optical amplifiers amplify the demultiplexed first and second lights, respectively. A second multiplexer multiplexes the amplified first and second lights from the third and fourth optical amplifiers into a WDM light. The optical amplifier can be configured so that the first and second lights travel through the dispersion compensator in opposite directions.

摘要翻译： 用于放大波分复用（WDM）光的光放大器或光中继器。 第一解复用器将WDM光分解成对应于WDM光中的不同波长的第一和第二光。 第一和第二光放大器分别放大第一和第二灯。 第一多路复用器将放大的第一和第二光复用到复用光中。 色散补偿器补偿复用光中的色散。 第二解复用器将色散补偿的多路复用光解复用为第一和第二光。 第三和第四光放大器分别放大解复用的第一和第二光。 第二复用器将来自第三和第四光放大器的放大的第一和第二光复用到WDM光中。 光放大器可以被配置成使得第一和第二光沿相反方向行进通过色散补偿器。

公开(公告)号：US06879434B2

公开(公告)日：2005-04-12

申请号：US10193538

申请日：2002-07-11

申请人： Yasuhiko Aoki ,  Susumu Kinoshita

发明人： Yasuhiko Aoki ,  Susumu Kinoshita

IPC分类号： G02F1/35 ,  H04B10/02 ,  H04B10/16 ,  H04B10/17 ,  H04B10/20 ,  H04J14/02 ,  H01S3/00

CPC分类号： H04J14/0204 ,  H04B10/2916 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0213

摘要： An optical ring is operable to transport traffic signals between nodes. A Raman pump source is coupled to the optical ring. The Raman pump source is operable to provide pump power to at least a portion of the optical fiber ring. Each node comprises an optical splitter operable to at least passively drop traffic to the optical fiber ring. Each node further comprises a pump filter operable to separate at the node the pump power from traffic signals.

摘要翻译： 光环可操作以在节点之间传送业务信号。 拉曼泵浦源耦合到光学环。 拉曼泵浦源可操作以向至少一部分光纤环提供泵浦功率。 每个节点包括光分路器，其可操作以至少被动地将流量降低到光纤环。 每个节点还包括泵过滤器，其可操作以在节点处将泵功率与交通信号分离。

公开(公告)号：US20050019034A1

公开(公告)日：2005-01-27

申请号：US10627548

申请日：2003-07-25

申请人： Yasuhiko Aoki ,  Koji Takeguchi ,  Susumu Kinoshita

发明人： Yasuhiko Aoki ,  Koji Takeguchi ,  Susumu Kinoshita

IPC分类号： H04L12/42 ,  H04B10/02 ,  H04B10/20 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04J14/0297 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/022 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0286 ,  H04J14/0294 ,  H04J14/0295

摘要： A system for communicating optical traffic between ring networks includes a first optical ring network and a second optical ring network. Each optical ring network is operable to communicate optical traffic comprising a plurality of wavelengths. The system includes a first ring interconnect (RIC) node and a second RIC node, and each RIC node is coupled to the first and second optical ring networks. The first RIC node is operable to communicate optical traffic between the first and second optical ring networks, and the second RIC node is operable to communicate optical traffic between the first and second optical ring networks when the first RIC node is unable to communicate optical traffic between the first and second optical ring networks. The second RIC node may be operable to determine when the first RIC node is unable to communicate optical traffic between the first and second optical ring networks.

摘要翻译： 用于在环网之间传送光流量的系统包括第一光环网和第二光环网。 每个光环网络可操作以通信包括多个波长的光通信。 该系统包括第一环互连（RIC）节点和第二RIC节点，并且每个RIC节点耦合到第一和第二光环网络。 第一RIC节点可操作以在第一和第二光环网络之间传送光业务，并且当第一RIC节点不能在第一和第二光环网络之间传送光学业务时，第二RIC节点可操作以在第一和第二光环网络之间传送光业务 第一和第二光环网络。 第二RIC节点可用于确定第一RIC节点何时不能在第一和第二光环网络之间传送光业务。

公开(公告)号：US06785042B1

公开(公告)日：2004-08-31

申请号：US09531015

申请日：2000-03-20

申请人： Miki Onaka ,  Susumu Kinoshita

发明人： Miki Onaka ,  Susumu Kinoshita

IPC分类号： H01S300

CPC分类号： H04B10/294 ,  H01S3/06725 ,  H01S3/06758 ,  H01S3/094011 ,  H01S3/094096 ,  H01S3/09415 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/1305 ,  H01S3/302 ,  H01S2301/02 ,  H01S2301/04 ,  H04B10/2916 ,  H04B10/2942 ,  H04B10/296

摘要： The present invention aims at providing a method for controlling wavelength characteristics of optical transmission powers by Raman amplification, in which the wavelength characteristics of optical transmission powers are automatically compensated without giving any losses to channel lights to thereby improve transmission characteristics, and an apparatus adopting the same. To this end, the method for controlling wavelength characteristics of optical transmission powers by Raman amplification according to the present invention supplies Raman pump light to an optical transmission path (Raman amplifying medium); compensates the wavelength characteristics of optical transmission powers caused by transmission of WDM signal light through the optical transmission path, by gain wavelength characteristics of generated Raman amplification; and monitors the wavelength characteristics of optical transmission powers after Raman amplification to thereby control the gain wavelength characteristics of Raman amplification.

摘要翻译： 本发明的目的在于提供一种用于通过拉曼放大来控制光发射功率的波长特性的方法，其中光传输功率的波长特性被自动补偿，而不会对信道灯造成任何损耗，从而提高传输特性，并且采用 相同。 为此，根据本发明的用于通过拉曼放大来控制光传输功率的波长特性的方法将拉曼泵浦光提供给光传输路径（拉曼放大介质）; 补偿通过光传输路径传输WDM信号光引起的光传输功率的波长特性，通过生成拉曼放大的增益波长特性; 并监测拉曼放大后的光传输功率的波长特性，从而控制拉曼放大的增益波长特性。

公开(公告)号：US06724526B1

公开(公告)日：2004-04-20

申请号：US09628811

申请日：2000-07-28

申请人： Miki Onaka ,  Susumu Kinoshita

发明人： Miki Onaka ,  Susumu Kinoshita

IPC分类号： H01S300

CPC分类号： H04J14/0221 ,  H04B10/25073 ,  H04J14/0201 ,  H04J14/0208 ,  H04J14/021 ,  H04J14/0213

摘要： It is aimed at providing an inter-wavelength light power deviation monitoring method capable of directly measuring the signal light power to thereby detect the light power deviations among channels without requiring a higher wavelength resolution, and providing an optical equalizer and an optical amplifier adopting such a monitoring method. To this end, the monitoring method of the present invention comprises the steps of: obtaining channel information concerning WDM signal light; setting, based on the channel information, at least two measuring wavelength regions; measuring channel light power of the WDM signal light, for only the measuring wavelength regions; and obtaining light power ratio for the respective measuring wavelength regions making use of the measured values, to thereby judge the inter-wavelength light power deviations of the WDM signal light.

摘要翻译： 本发明的目的在于提供一种能够直接测量信号光功率从而检测信道中的光功率偏差而不需要更高的波长分辨率的波长间光功率偏差监测方法，并且提供一种光均衡器和采用这种 监测方法。 为此，本发明的监视方法包括以下步骤：获得关于WDM信号光的信道信息; 基于所述信道信息设置至少两个测量波长区域; 测量WDM信号光的通道光功率，仅用于测量波长区域; 并且利用测量值获得各个测量波长区域的光功率比，从而判断WDM信号光的波长间光功率偏差。

公开(公告)号：US06646791B2

公开(公告)日：2003-11-11

申请号：US10057866

申请日：2002-01-29

申请人： Yasushi Sugaya ,  Susumu Kinoshita

发明人： Yasushi Sugaya ,  Susumu Kinoshita

IPC分类号： H04B1012

CPC分类号： H01S3/06758 ,  H01S3/10015 ,  H01S3/1003 ,  H01S3/1301 ,  H01S2301/04 ,  H04B10/291 ,  H04B10/2912 ,  H04B10/2931 ,  H04B10/2942 ,  H04B10/296 ,  H04B2210/003 ,  H04J14/0221

摘要： An optical amplifying apparatus which includes an optical amplifier, an optical attenuator and a controller. The optical amplifier amplifies a light signal having a variable number of channels. The optical attenuator passes the amplified light signal and has a variable light transmissivity. Prior to varying the number of channels in the light signal, the controller varies the light transmissivity of the optical attenuator so that a power level of the amplified light signal is maintained at an approximately constant level that depends on the number of channels in the light signal prior to the varying the number of channels. While the number of channels in the light signal is being varied, the controller maintains the light transmissivity of the optical attenuator to be constant. Subsequent to varying the number of channels in the light signal, the controller varies the light transmissivity of the optical attenuator so that a power level of the amplified light signal is maintained at an approximately constant level that depends on the number of channels in the light signal subsequent to the varying the number of channels.

公开(公告)号：US06542291B1

公开(公告)日：2003-04-01

申请号：US09404789

申请日：1999-09-24

申请人： Susumu Kinoshita ,  Terumi Chikama

发明人： Susumu Kinoshita ,  Terumi Chikama

IPC分类号： G02B628

CPC分类号： H04B10/296 ,  H01S3/094003 ,  H04B10/291 ,  H04B10/294 ,  H04J14/0221

摘要： In an optical amplifier for use in, for example, a wavelength multiplexing optical communication system, in order to allow an excitation light source to be enlargeable or removable in accordance with an increase/decrease in the number of channels in signal light even if the optical communication system is in operation, there are included an optical amplifying section (2) for amplifying and outputting inputted signal light, a plurality of excitation light sources (3, 4) and an excitation light source control section (5) for controlling operations of the excitation light sources (3, 4), wherein the excitation light sources are composed of a main excitation light source (3) and an auxiliary excitation light source (4), and the excitation light source control section (5) is equipped with a control section (7) which, when the number of channels in the inputted signal light is equal to or less than a predetermined number of channels, executes control whereby the main excitation light source (3) supplies excitation light and which executes control whereby the main excitation light source (3) and the auxiliary excitation light source (4) cooperatively supply excitation light when the number of channels in the signal light is more than the predetermined number of channels.

摘要翻译： 在用于例如波分复用光通信系统的光放大器中，为了允许激励光源可以根据信号光中的信道数目的增加/减少而被放大或移除，即使光学 通信系统正在运行，包括用于放大和输出输入信号光的光学放大部分（2），多个激励光源（3,4）和激励光源控制部分（5），用于控制 激发光源（3,4），其中所述激发光源由主激励光源（3）和辅助激励光源（4）构成，所述激发光源控制部（5）配备有控制 当输入信号光中的通道数等于或小于预定数量的通道时，执行控制，从而主激励光源 （3）提供激发光，并且当信号光中的通道数大于预定数量的通道时，执行控制，由此主激励光源（3）和辅助激励光源（4）协同地提供激发光。