公开(公告)号：US20180375606A1

公开(公告)日：2018-12-27

申请号：US16063053

申请日：2016-12-20

申请人： Xieon Networks S.a.r.l.

发明人： Benoit CLOUET

IPC分类号： H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0291 ,  H04J14/0212 ,  H04Q11/0005

摘要： The present invention relates to an optical network element (30, 34) comprising a wavelength selective switch, WSS, (432, 136) with one or more input ports, a working output port (38) and a separate protecting output port (40), the WSS (432) being configurable to a working configuration, in which one or more channels are routed from said one or more input ports to the working output port (38), and being configurable to a protecting configuration, in which said one or more channels or a subset thereof are routed from said one or more input ports to the protecting output port (40), or with a working input port (42) and a protecting input port (44) and with one or more output ports, the WSS (136) being configurable to a working configuration, in which one or more channels are routed from the working input (42) port to the one or more output ports, and being configurable to a protecting configuration, in which one or more channels are routed from the protecting input port (44) to the one or more output ports, a computer readable medium including program code defining configuration information, a control unit configured to control the WSS (432, 136) to adopt the working configuration or the protecting configuration based on the predefined configuration information.

公开(公告)号：US20180212706A1

公开(公告)日：2018-07-26

申请号：US15877247

申请日：2018-01-22

申请人： COX COMMUNICATIONS, INC.

发明人： Harjinder S. Ghuman

IPC分类号： H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0286 ,  H04B10/294 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0221 ,  H04J14/0282 ,  H04J14/0283 ,  H04J14/0291 ,  H04J14/0293 ,  H04Q11/0005

摘要： This disclosure describes devices and methods related to multiplexing optical data signals. A method may be disclosed for multiplexing one or more optical data signals. The method may comprise receiving, by a dense wave division multiplexer (DWDM), one or more optical data signals. The method may comprise combining, by the DWDM, the one or more optical data signals. The method may comprise outputting, by the DWDM, the combined one or more optical data signals to one or more wave division multiplexer (WDM). The method may comprise combining, by the one or more WDM, the combined one or more optical data signals and one or more second optical data signals, and outputting an egress optical data signal comprising the combined one or more optical data signals and one or more second optical data signals.

公开(公告)号：US20180175935A1

公开(公告)日：2018-06-21

申请号：US15385696

申请日：2016-12-20

申请人： Google Inc.

发明人： Liang Du ,  Yut Loy Chan ,  Xiangjun Zhao ,  Changhong Joy Jiang ,  Cedric Fund Lam ,  Daoyi Wang ,  Tao Zhang

IPC分类号： H04B10/25 ,  H04J14/02

CPC分类号： H04B10/2503 ,  H04J14/0227 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0287 ,  H04J14/0291

摘要： A carrier office includes an optical line terminal, a first transmit-erbium-doped fiber amplifier (EDFA), and a second transmit-EDFA. The OLT is configured to transmit first and second optical signals. The first transmit-EDFA is optically coupled to the OLT and a first feeder fiber, and the first feeder fiber is optically coupled to a first remote node (RN). The first transmit-EDFA is operable between a respective enabled state and a respective disabled state. The second transmit-EDFA is optically coupled to the OLT and a second feeder fiber, and the second feeder fiber is optically coupled to a second RN. The second transmit-EDFA is operable between a respective enabled state and a respective disabled state.

公开(公告)号：US20170279557A1

公开(公告)日：2017-09-28

申请号：US15510772

申请日：2015-09-11

申请人： The Arizona Board of Regents on Behalf of the University of Arizona ,  The Trustees of Columbia University in the City of New York

发明人： Daniel KILPER ,  Keren BERGMAN ,  GIL ZUSSMAN ,  BERK BIRAND

IPC分类号： H04J14/02 ,  H04Q11/00 ,  H04B10/079 ,  H04B10/11

CPC分类号： H04J14/0212 ,  H04B10/0795 ,  H04B10/11 ,  H04J14/0221 ,  H04J14/0242 ,  H04J14/0291 ,  H04Q11/0005 ,  H04Q2011/0016

摘要： An optical communication system includes a plurality of optical system nodes, a plurality of optical space switches and a plurality of optical fibers. The plurality of optical system nodes each includes at least one reconfigurable optical add/drop multiplexer (ROADM). The optical system nodes each have at least one client side port and at least one line side port. Each optical space switch is operatively coupled to the line side port of one of the plurality of optical system nodes. Each of the optical fibers couples one of the optical space switches to another of the optical space switches.

公开(公告)号：US09590736B2

公开(公告)日：2017-03-07

申请号：US14584641

申请日：2014-12-29

申请人： Verizon Patent and Licensing Inc.

发明人： Glenn A. Wellbrock ,  Tiejun J. Xia

IPC分类号： H04B10/27 ,  H04B10/03 ,  H04B10/032 ,  H04J14/02 ,  H04Q11/00 ,  H04L12/24 ,  H04L12/707 ,  H04L12/721 ,  H04L12/703

CPC分类号： H04B10/27 ,  H04B10/03 ,  H04B10/032 ,  H04J14/021 ,  H04J14/0291 ,  H04J14/0294 ,  H04L41/0668 ,  H04L41/0806 ,  H04L41/0816 ,  H04L41/0823 ,  H04L45/22 ,  H04L45/28 ,  H04L45/62 ,  H04Q2011/0086

摘要： A network management device monitors an optical network that is configured for a required bandwidth. The optical network includes multiple optical nodes and a plurality of light paths between the multiple optical nodes. The multiple optical nodes include transport cards with a majority of the transport cards provisioned as active cards to receive a traffic load of up to full capacity of the transport cards, and with a minority of the transport cards provisioned as floating spare cards for the active cards. The network management device identifies an unused first floating spare card and an unused second floating spare card in a pair of the multiple optical nodes and automatically provisions, by the network management device, the first floating spare card and the second floating spare card to service a light path for best-effort traffic between the pair of the multiple optical nodes.

摘要翻译： 网络管理设备监视配置为所需带宽的光网络。 光网络包括多个光节点和多个光节点之间的多条光路。 多个光学节点包括传输卡，其中大多数传输卡被提供为活动卡，以接收高达运输卡的全部容量的业务负载，以及提供作为活动卡的浮动备用卡的少数传输卡 。 网络管理装置在一对多个光节点中识别未使用的第一浮动备用卡和未使用的第二浮动备用卡，并且由网络管理装置自动地提供第一浮动备用卡和第二浮动备用卡来服务于 光路之间，用于在一对多个光节点之间尽力而为的流量。

公开(公告)号：US09331811B2

公开(公告)日：2016-05-03

申请号：US13504077

申请日：2009-10-26

申请人： Jiajia Chen ,  Lena Wosinska

发明人： Jiajia Chen ,  Lena Wosinska

IPC分类号： H04B10/272 ,  H04J14/02

CPC分类号： H04J14/0297 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0258 ,  H04J14/0265 ,  H04J14/0282 ,  H04J14/0291

摘要： Wireless communication systems are provided including a transmitter and a receiver. The transmitter is configured to transmit a first polarized signal and a second polarized signal to the receiver, and in accordance with an instruction from the receiver, halt transmission of the second polarized signal. The receiver is configured to receive the polarized signals from the transmitter, determine whether or not the reception quality of the second polarized signal is below a threshold, and if so, instruct the transmitter to halt transmission of the second polarized signal.

摘要翻译： 提供了包括发射机和接收机的无线通信系统。 发射机被配置为向接收机发送第一偏振信号和第二极化信号，并且根据来自接收机的指令停止第二极化信号的发送。 接收器被配置为从发送器接收偏振信号，确定第二极化信号的接收质量是否低于阈值，如果是，则指示发送器停止第二极化信号的发送。

公开(公告)号：US20150244494A1

公开(公告)日：2015-08-27

申请号：US14616575

申请日：2015-02-06

申请人： ADVA Optical Networking SE

发明人： Klaus Grobe

IPC分类号： H04J14/02

CPC分类号： H04J14/0278 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0267 ,  H04J14/0272 ,  H04J14/0282 ,  H04J14/0291 ,  H04J14/0295 ,  H04J2014/0253

摘要： A passive optical network comprises at least two optical line terminals (OLTs), a remote node (RN), and a plurality of optical node units (ONUs). Each OLT has a WDM working port, the RN has a number M WDM ports and a number N distribution ports, and each ONU has a communication port. Each OLT WDM working port is connected to a dedicated RN WDM port by a respective working feeder fiber, and each ONU communication port is connected to a dedicated RN distribution port by a respective distribution fiber. The RN comprises a passive optical filter device having a spectral and spatial filter property of an M×N arrayed waveguide grating and defining the M WDM ports and the N distribution ports. Each OLT communicates to a respective ONU using optical channel signals at a downstream wavelength defined by the passive optical filter device making up the RN.

摘要翻译： 无源光网络包括至少两个光线路终端（OLT），远程节点（RN）和多个光节点单元（ONU）。 每个OLT都有一个WDM工作端口，RN具有M个WDM端口和N个分配端口，每个ONU都有一个通信端口。 每个OLT WDM工作端口通过相应的工作馈线光纤连接到专用的RN WDM端口，并且每个ONU通信端口通过相应的分配光纤连接到专用的RN分配端口。 RN包括具有M×N阵列波导光栅的频谱和空间滤波特性并定义M个WDM端口和N个分配端口的无源光学滤波器装置。 每个OLT使用由构成RN的无源光学滤波器装置限定的下行波长的光信道信号与相应的ONU进行通信。

公开(公告)号：US20140341560A1

公开(公告)日：2014-11-20

申请号：US14254151

申请日：2014-04-16

申请人： FUJITSU LIMITED

发明人： Masakazu Bamba

IPC分类号： H04B10/032 ,  H04Q11/00

CPC分类号： H04B10/032 ,  H04J14/0291 ,  H04L45/22 ,  H04L45/28 ,  H04L47/72 ,  H04L47/724 ,  H04L47/728

摘要： A protection channel provisioning method includes: reserving a first protection channel corresponding to a first work channel and a second protection channel corresponding to a second work channel; provisioning a shared protection channel by configuring a circuit of node equipment provided on a shared route on which the first protection channel and the second protection channel are redundantly reserved so that a data signal of the first work channel or a data signal of the second work channel is transmitted via the shared route; and configuring a circuit of branch node equipment provided in a branch node at which the shared protection channel is guided to a first node corresponding to the first protection channel and a second node corresponding to the second protection channel so that the data signal transmitted via the shared protection channel is not guided to the first node and the second node.

摘要翻译： 保护信道配置方法包括：保留对应于第一工作信道的第一保护信道和对应于第二工作信道的第二保护信道; 通过配置提供在共享路由上的节点设备的电路来设置共享保护信道，在共享路由上冗余保留第一保护信道和第二保护信道，使得第一工作信道的数据信号或第二工作信道的数据信号 通过共享路由传输; 以及配置提供在分支节点中的分支节点设备的电路，在所述分支节点中共享保护信道被引导到对应于第一保护信道的第一节点和对应于第二保护信道的第二节点，使得经由共享 保护信道不被引导到第一节点和第二节点。

公开(公告)号：US20140255020A1

公开(公告)日：2014-09-11

申请号：US14282156

申请日：2014-05-20

申请人： Huawei Marine Networks Co., Ltd.

发明人： Wendou Zhang ,  Liping Ma ,  Likun Zhang

IPC分类号： H04B10/035 ,  H04J14/02

CPC分类号： H04B10/035 ,  H04B10/0791 ,  H04J14/0201 ,  H04J14/0202 ,  H04J14/0221 ,  H04J14/0291 ,  H04J14/0294

摘要： A method, an optical add-drop multiplexer branching unit, and a system for disaster recovery of an optical communication system are provided. The method for disaster recovery of an optical communication system using an optical add-drop multiplexer unit (OADM) includes: detecting a transmission link fault in an optical communication system; and when a transmission link fault is detected, switching the state of a link where the transmission link fault occurs from pass-through to loopback, so that an optical signal input from a non-faulty end of the link is looped back to the end for outputting. In this way, when a transmission link fault occurs in an optical communication system, the power level of a link where the transmission link fault occurs can be maintained by using the solutions in the embodiments of the present invention, thereby keeping transmission performance stable.

摘要翻译： 提供了一种方法，光分插复用器分支单元和光通信系统的灾难恢复系统。 使用光分插复用器单元（OADM）的光通信系统的灾难恢复方法包括：检测光通信系统中的传输链路故障; 并且当检测到传输链路故障时，将传输链路故障发生的链路的状态从传递切换到环回，使得从链路的非故障端输入的光信号循环回到 输出。 以这种方式，当在光通信系统中发生传输链路故障时，可以通过使用本发明的实施例中的解决方案来维持发生传输链路故障的链路的功率电平，从而保持传输性能的稳定。

公开(公告)号：US20140241712A1

公开(公告)日：2014-08-28

申请号：US14185168

申请日：2014-02-20

申请人： Hitachi, Ltd.

发明人： Toshiki SUGAWARA ,  Hidehiro TOYODA ,  Kenichi TANAKA

IPC分类号： H04B10/038

CPC分类号： H04B10/038 ,  G02B6/02042 ,  G02B6/3528 ,  H04B10/032 ,  H04B10/077 ,  H04J14/0275 ,  H04J14/029 ,  H04J14/0291

摘要： A highly reliable optical switching device and optical switching method ensure restoration of the failure in the large-capacity high density wiring of the multicore fiber with the general number of cores (7 cores, 19 cores and the like). An optical transmission system which transmits a supervisory control signal concerning a transmission path switching to one or more cores of a single or multiple multicore fibers, an active signal to one or more cores, and a standby signal to one or more cores includes optical switching devices connected to respective ends of the optical transmission system. Upon detection of the transmission failure of the active signal based on the signal transmission condition and information from the supervisory control signal, it is switched to the standby signal. The supervisory control signal is transmitted to the center core of the multicore fiber.

摘要翻译： 高可靠性的光开关器件和光开关方法可确保多芯光纤的大容量高密度布线的故障恢复，具有一般核心数（7芯，19芯等）。 一种光传输系统，其发送关于传输路径切换到单个或多个多芯光纤的一个或多个核心的监控控制信号，到一个或多个核心的活动信号和到一个或多个核心的备用信号，包括光学开关设备 连接到光传输系统的相应端。 在根据信号传输条件和来自监控信号的信息检测到有效信号的传输故障时，切换到待机信号。 监控信号传输到多芯光纤的中心核心。