公开(公告)号：US09276672B2

公开(公告)日：2016-03-01

申请号：US14092145

申请日：2013-11-27

Applicant: Huawei Marine Networks Co., Ltd.

Inventor： Wendou Zhang ,  Liping Ma

IPC: H04B10/00 ,  H04B10/077 ,  H04B10/80 ,  H04B10/071

CPC classification number: H04B10/0771 ,  H04B10/071 ,  H04B10/80

Abstract: A method for detecting a submarine optical cable line includes: splitting a detection signal input to a first optical functional unit in an optical functional module of an optical cable line into a first detection signal and a second detection signal; directly coupling and looping back the first detection signal to an output end of a second optical functional unit in a direction opposite to the first optical functional unit to constitute a first loopback path, and outputting a first detection loopback signal; looping back the second detection signal passing through the first optical functional unit to the output end of the second optical functional unit to constitute a second loopback path, and outputting a second detection loopback signal; and detecting a status of the submarine optical cable line according to power of the first detection loopback signal and power of the second detection loopback signal.

Abstract translation: 一种用于检测海底光缆线路的方法，包括：将输入到光缆线路的光功能模块中的第一光功能单元的检测信号分割为第一检测信号和第二检测信号; 将第一检测信号直接耦合回环到与第一光功能单元相反的方向的第二光功能单元的输出端，以构成第一环回路径，并输出第一检测环回信号; 将通过第一光功能单元的第二检测信号回送到第二光功能单元的输出端，构成第二环回路径，并输出第二检测环回信号; 以及根据第一检测环回信号的功率和第二检测环回信号的功率来检测海底光缆线路的状态。

公开(公告)号：US09762348B2

公开(公告)日：2017-09-12

申请号：US15153517

申请日：2016-05-12

Applicant: Huawei Marine Networks Co., Ltd.

Inventor： Wendou Zhang ,  Changwu Xu ,  Liping Ma

IPC: H04J14/02 ,  G02B6/293

CPC classification number: H04J14/0212 ,  G02B6/29382 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0215 ,  H04J14/0221 ,  H04J14/0291

Abstract: 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.

公开(公告)号：US20140086573A1

公开(公告)日：2014-03-27

申请号：US14092145

申请日：2013-11-27

Applicant: Huawei Marine Networks Co., Ltd.

Inventor： Wendou Zhang ,  Liping Ma

IPC: H04B10/077 ,  H04B10/80

CPC classification number: H04B10/0771 ,  H04B10/071 ,  H04B10/80

Abstract: A method for detecting a submarine optical cable line includes: splitting a detection signal input to a first optical functional unit in an optical functional module of an optical cable line into a first detection signal and a second detection signal; directly coupling and looping back the first detection signal to an output end of a second optical functional unit in a direction opposite to the first optical functional unit to constitute a first loopback path, and outputting a first detection loopback signal; looping back the second detection signal passing through the first optical functional unit to the output end of the second optical functional unit to constitute a second loopback path, and outputting a second detection loopback signal; and detecting a status of the submarine optical cable line according to power of the first detection loopback signal and power of the second detection loopback signal.

Abstract translation: 一种用于检测海底光缆线路的方法包括：将输入到光缆线路的光功能模块中的第一光功能单元的检测信号分成第一检测信号和第二检测信号; 将第一检测信号直接耦合回环到与第一光功能单元相反的方向的第二光功能单元的输出端，以构成第一环回路径，并输出第一检测环回信号; 将通过第一光功能单元的第二检测信号回送到第二光功能单元的输出端，构成第二环回路径，并输出第二检测环回信号; 以及根据第一检测环回信号的功率和第二检测环回信号的功率来检测海底光缆线路的状态。

公开(公告)号：US11955764B2

公开(公告)日：2024-04-09

申请号：US16980478

申请日：2018-08-27

Applicant: HUAWEI MARINE NETWORKS CO., LTD.

Inventor： Changwu Xu ,  Yuhe Li ,  Ge Jin ,  Yan Wang ,  Liping Ma

IPC: H01S3/30 ,  H01S3/067 ,  H01S3/094 ,  H04B10/291 ,  H04B10/293

CPC classification number: H01S3/06754 ,  H01S3/06716 ,  H01S3/06737 ,  H01S3/094053 ,  H01S3/094061 ,  H01S3/09408 ,  H04B10/2912 ,  H04B10/293

Abstract: 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：US20140255020A1

公开(公告)日：2014-09-11

申请号：US14282156

申请日：2014-05-20

Applicant: Huawei Marine Networks Co., Ltd.

Inventor： Wendou Zhang ,  Liping Ma ,  Likun Zhang

IPC: H04B10/035 ,  H04J14/02

CPC classification number: H04B10/035 ,  H04B10/0791 ,  H04J14/0201 ,  H04J14/0202 ,  H04J14/0221 ,  H04J14/0291 ,  H04J14/0294

Abstract: 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.

Abstract translation: 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。