公开(公告)号：US20150318926A1

公开(公告)日：2015-11-05

申请号：US14799418

申请日：2015-07-14

申请人： Huawei Marine Networks Co., Ltd.

发明人： Wendou ZHANG ,  Changwu XU

IPC分类号： H04B10/516 ,  H04B10/572

CPC分类号： H04B10/0777 ,  H04B10/035 ,  H04B10/0779 ,  H04B10/2916 ,  H04B10/2918 ,  H04B10/80 ,  H04B2210/078

摘要： A communications device is disclosed and includes: a first acquiring unit for acquiring first specific wavelength light and second specific wavelength light from a first optical path; a first receiving unit for converting the first specific wavelength light coming from the first acquiring unit into a first electrical signal; a first control unit for sending a first modulating signal to a first loopback unit according to the first electrical signal coming from the first receiving unit; and the first loopback unit for modulating the second specific wavelength light coming from the first acquiring unit according to the first modulating signal, and looping the modulated second specific wavelength light back to a second optical path, where a transmission direction of an optical signal in the second optical path is opposite to a transmission direction of an optical signal in the first optical path. The present invention further discloses a communications method.

摘要翻译： 公开了一种通信设备，包括：第一获取单元，用于从第一光路获取第一特定波长光和第二特定波长光; 第一接收单元，用于将来自第一获取单元的第一特定波长光转换为第一电信号; 第一控制单元，用于根据来自第一接收单元的第一电信号向第一回送单元发送第一调制信号; 以及第一环回单元，用于根据第一调制信号调制来自第一获取单元的第二特定波长光，并将经调制的第二特定波长光循环回第二光路，其中光信号的发送方向 第二光路与第一光路中的光信号的透射方向相反。 本发明还公开了一种通信方法。

公开(公告)号：US20210116492A1

公开(公告)日：2021-04-22

申请号：US17047601

申请日：2018-08-21

申请人： HUAWEI MARINE NETWORKS CO., LTD.

发明人： Fei XU ,  Changwu XU ,  Liyuan SHI ,  Liping MA

IPC分类号： G01R31/14 ,  G01R31/12 ,  G01R31/08 ,  G01R31/58

摘要： A cable accessory device, including a one-way conducting element and a grounding electrode. One end of the one-way conducting element is connected to a conductor structure in a cable, and the other end is connected to the grounding electrode. By applying voltages with different polarities to the one-way conducting element, the one-way conducting element is enabled to have different on/off states. When the on/off state of the one-way conducting element is an on state, the conductor structure in the cable is connected to the grounding electrode via the one-way conducting element, so as to measure direct current resistance of the conductor structure. Moreover, when the on/off state of the one-way conducting element is an off state, the one-way conducting element breaks connection between the conductor structure and the grounding electrode, so as to measure insulation resistance of an insulation structure. In this way, tests for measuring direct current resistance of the conductor structure and insulation resistance of the insulation structure may be facilitated, so that failures of the cable may be comprehensively investigated to damages in the cable may be found in time, thus reducing subsequent costs in locating and maintenance.

公开(公告)号：US20210021336A1

公开(公告)日：2021-01-21

申请号：US16982951

申请日：2019-03-06

申请人： HUAWEI MARINE NETWORKS CO., LTD.

发明人： Yan WANG ,  Changwu XU ,  Liping MA ,  Li YANG

IPC分类号： H04B10/071 ,  H04B10/29 ,  H04B10/2537 ,  H01S3/094

摘要： This application provides a submarine network device and a submarine cable system that may accurately detect a fault of a submarine optical repeater in time. The device comprises: a first fiber and a second fiber; at least one first pump laser, configured to supply pumping light to a first optical amplification unit located in the first fiber; the first optical amplification unit, configured to amplify and then output a first probe signal sent from a first site to a second site; a first fiber coupler located in the first fiber, configured to receive a first reflected optical signal obtained from the first probe signal after Rayleigh backscattering, and send a portion of the first reflected optical signal to a second fiber coupler located in the second fiber; at least one second pump laser, configured to supply pumping light to a second optical amplification unit; a second optical amplification unit, configured to amplify and then output a second data optical signal sent by the second site to the first site; and a second fiber coupler, configured to receive a portion of the first reflected optical signal output by the first fiber coupler.

公开(公告)号：US20210218469A1

公开(公告)日：2021-07-15

申请号：US17051664

申请日：2019-04-29

申请人： HUAWEI MARINE NETWORKS CO., LTD.

发明人： Changwu XU ,  Keqiang CUI ,  Guangjun WANG ,  Yingli TAO ,  Li YANG ,  Jianping LI

IPC分类号： H04B10/077 ,  H04L12/26

摘要： This application discloses a submarine cable fault determining method and apparatus for realizing detecting whether a fault occurs to a submarine cable, without depending on TTE. The submarine cable fault determining method includes: receiving, by a network management system, first detection information from a first device during a first preset time, and receiving second detection information from a second device during a second preset time, where the second detection information is used to indicate whether the second device receives a first heartbeat signal from the first device through a submarine cable, and the first detection information is used to indicate whether the first device receives a second heartbeat signal from the second device through the submarine cable; and determining, by the network management system based on the first detection information and the second detection information, whether a fault occurs to the submarine cable between the first device and the second device.

公开(公告)号：US20210028591A1

公开(公告)日：2021-01-28

申请号：US16980478

申请日：2018-08-27

申请人： HUAWEI MARINE NETWORKS CO., LTD.

发明人： Changwu XU ,  Yuhe LI ,  Ge JIN ,  Yan WANG ,  Liping MA

IPC分类号： H01S3/067 ,  H04B10/293 ,  H04B10/291 ,  H01S3/094

摘要： Disclosed is a submarine network device, comprising a fiber set, a pump laser set, an erbium doped fiber amplifier (EDFA) set, a primary fiber coupler (CPL) set and a secondary CPL set, wherein the primary CPL set comprises N primary CPLs, the secondary CPL set comprises N secondary CPLs, with N being an integer greater than or equal to 3. The fiber set is configured to connect the pump laser set, the primary CPL set, the secondary CPL set and the EDFA set. An input port of each primary CPL in the primary CPL set is at least connected with a pump laser. An output port of each secondary CPL in the secondary CPL set is at least connected with an EDFA. Output ports of each primary CPL in the primary CPL set are respectively connected with two different secondary CPLs that are spaced by a secondary CPL, and input ports of each secondary CPL in the secondary CPL set are respectively connected with two different primary CPLs that are spaced by a primary CPL.

公开(公告)号：US20160261360A1

公开(公告)日：2016-09-08

申请号：US15153517

申请日：2016-05-12

申请人： Huawei Marine Networks Co., Ltd.

发明人： Wendou ZHANG ,  Changwu XU ,  Liping MA

IPC分类号： H04J14/02 ,  G02B6/293

CPC分类号： H04J14/0212 ,  G02B6/29382 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0215 ,  H04J14/0221 ,  H04J14/0291

摘要： Embodiments of the present invention provide a reconfigurable optical add-drop multiplexer apparatus, and relate to the field of communications, so as to solve the problem of inconvenient line failure detection. The ROADM apparatus includes: a first ROADM, a second ROADM, one splitting coupler, four optical amplifiers, and four couplers. The embodiments of the present invention are used in a communications line architecture.

摘要翻译： 本发明的实施例提供了一种可重配置的光分插复用器装置，涉及通信领域，以解决线路故障检测不方便的问题。 ROADM装置包括：第一ROADM，第二ROADM，一个分离耦合器，四个光放大器和四个耦合器。 本发明的实施例用于通信线路架构。

公开(公告)号：US20140010531A1

公开(公告)日：2014-01-09

申请号：US14023013

申请日：2013-09-10

申请人： HUAWEI MARINE NETWORKS CO., LTD.

发明人： Xiaobo HU ,  Yong ZHAO ,  Changwu XU ,  Bin LI

IPC分类号： H04B10/079

CPC分类号： H04B10/079 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0272

摘要： A scheduling method, apparatus, and system for avoiding a dual-end monitoring conflict for a submarine cable optical line are provided, where the method includes: sending a wavelength occupation request message to a peer-end equipment via a selected submarine cable optical line to be monitored, and receiving a wavelength occupation response message returned by the peer-end equipment; parsing the wavelength occupation response message to determine whether a requested wavelength is occupied by the peer-end equipment; and if the requested wavelength is occupied by the peer-end equipment and the wavelength can be switched, monitoring the selected submarine cable optical line to be monitored by using another wavelength after switching; and if the requested wavelength is not occupied by the peer-end equipment, monitoring the selected submarine cable optical line to be monitored by using the requested wavelength.

摘要翻译： 提供了一种用于避免海底电缆光线路的双端监控冲突的调度方法，装置和系统，其中所述方法包括：经由选择的海底电缆光线路向对端设备发送波长占用请求消息， 并接收对端设备返回的波长占用响应消息; 解析所述波长占用响应消息以确定所请求的波长是否被所述对端设备占用; 如果所请求的波长被对端设备占用并且可以切换波长，则在切换后通过使用另一个波长来监视要监视的所选海底光缆线路; 并且如果所请求的波长未被对端设备占用，则通过使用所请求的波长来监视要监视的所选择的海底光缆线路。