公开(公告)号：EP2458762B1

公开(公告)日：2013-12-04

申请号：EP10801901.9

申请日：2010-05-31

申请人： Huawei Marine Networks Co., Limited

发明人： WANG, Guozhong ,  MA, Liping ,  WEN, Ye

IPC分类号： H04J14/02 ,  H04B10/00

CPC分类号： H04J14/0201 ,  H04J14/0221

公开(公告)号：EP2458762A1

公开(公告)日：2012-05-30

申请号：EP10801901.9

申请日：2010-05-31

申请人： Huawei Marine Networks Co., Limited

发明人： WANG, Guozhong ,  MA, Liping ,  WEN, Ye

IPC分类号： H04J14/02 ,  H04B10/12

CPC分类号： H04J14/0201 ,  H04J14/0221

摘要： Embodiments of the present invention provide an Optical Add-Drop Multiplexer (OADM) Branching Unit (BU) and the corresponding optical transmission method and system. The method includes: separating a part of optical signals of different wavelengths from two trunk fibers respectively, coupling the part of optical signals of different wavelengths, and transmitting the coupled optical signals to a branch station through a fiber; separating, according to wavelengths, optical signals that have different wavelengths and are transmitted by the branch station through a fiber, and then transmitting the optical signals to the two trunk fibers respectively; separating null-compensation light from the optical service signals transmitted through a fiber by the branch station to obtain the null-compensation light; coupling the null-compensation light with the part of optical signals that have different wavelengths and are respectively separated from the two trunk fibers, and transmitting the coupled optical signals to the branch station through a fiber.

摘要翻译： 本发明实施例提供的光分插复用器（OADM）分支单元（BU）和对应的光传输方法和系统，该方法包括：分别从两个主干光纤分离不同波长的光信号的一部分，耦合。 不同波长的光信号，并发送该耦合后的光信号通过一个光纤的分支站的一部分; 分离gemäß，以波长的光信号thathave不同波长和为反式通过光纤通过分支站mitted，然后发射的光信号分别在两个主干光纤; 从光业务信号的反式通过分支站，以获得零补偿光纤维mitted分离空补偿光; 与光信号的部分耦合所述零补偿光thathave不同波长并分别从所述两个主干光纤分离，并且通过光纤发射的耦合后的光信号发送到分支站。

公开(公告)号：EP2770654A1

公开(公告)日：2014-08-27

申请号：EP12878754.6

申请日：2012-06-15

申请人： Huawei Marine Networks Co., Limited

发明人： ZHANG, Wendou ,  MA, Liping ,  ZHANG, Likun

IPC分类号： H04J14/02

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

摘要： Embodiments of the present invention relate to a method, an optical add-drop multiplexer branching unit, and a system for disaster recovery of an optical communication system. 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, and enhancing the disaster recovery capability of the optical communication system. Furthermore, the solutions in the embodiments of the present invention do not introduce extra energy into a transmission link, thereby introducing no spontaneous emission noise and ensuring system performance.

摘要翻译： 本发明的实施例涉及一种光分插复用器分支单元和光通信系统的灾难恢复系统的方法。 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环回到端 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，从而保持传输性能稳定，并且 提高光通信系统的灾难恢复能力。 此外，本发明的实施例中的解决方案不会将额外的能量引入传输链路，从而不引入自发发射噪声并确保系统性能。