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Optical add-drop multiplexer branch unit and control method thereof

A technology of optical add-drop multiplexer and add-drop multiplexer, which is applied in the direction of wavelength division multiplexing system, optical multiplexing system, multiplexing communication, etc., and can solve the problem of high complexity of OADMBU and disaster recovery capability Poor, unable to guarantee the business communication of sites B and C, etc., to achieve the effect of small demand space, strong disaster recovery capability, and simple structure

Inactive Publication Date: 2012-10-17
HUAWEI MARINE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The OADM BU in the prior art cannot guarantee the business communication between sites B and C at this time
[0007] The OADM BU in the prior art is highly complex and has many deficiencies
For example, in the above two situations, the structure of OADMBU leads to poor disaster tolerance

Method used

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  • Optical add-drop multiplexer branch unit and control method thereof
  • Optical add-drop multiplexer branch unit and control method thereof
  • Optical add-drop multiplexer branch unit and control method thereof

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The terms "system" and "network" are often used interchangeably herein. The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character " / " in this article generally indicates that the contextual obj...

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Abstract

The invention provides an optical add-drop multiplexer branch unit and control method thereof. The optical add-drop multiplexer branch unit comprises four wavelength division multiplexers WDM1 to WDM4 and a first optical switch module, wherein WDM1 to WDM4 are used for wavelength division and wavelength complex of signals and the first optical switch module is used for on-off of signals of input and output WDM and comprises a port 1 to a port 4. Ports are respectively connected with input terminals or output terminals. Internal connection states between ports comprise a state 1 and a state 2, wherein the state 1 represents that the port 1 is communicated with the port 2 and the port 3 is communicated with the port 4 and the state 2 represents that the port 3 is communicated with the port 2 or the port 4 is communicated with the port 1 or port 3 is communicated with the port 2 and the port 4 is communicated with the port 1. The OADM BU in the above technology scheme is simple in structure, easy to control and strong in disaster tolerance capacity.

Description

technical field [0001] The invention relates to the field of optical fiber communication, and more particularly, relates to a branch unit of an optical add-drop multiplexer in a submarine cable network and a control method for the branch unit of the optical add-drop multiplexer. Background technique [0002] With the rapid development of information technology, the submarine cable network has covered all major sea areas around the world. The submarine cable optical fiber communication system generally adopts Dense Wavelength Division Multiplexing (DWDM, Dense Wavelength Division Multiplexing) technology, and the communication volume generally exceeds several Tbit / s (terabytes). bit / s), has become the main communication network carrying international communication services. Limited by factors such as cost and system reliability, a submarine cable system with a relay usually accommodates 2 to 8 fiber pairs, and each fiber pair carries the upwave and downwave. In order to real...

Claims

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Application Information

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IPC IPC(8): H04J14/02H04Q11/00G02B6/35
CPCH04J14/0212H04J14/0202H04J14/0216H04J14/0291H04J14/0215H04B10/03
Inventor 张文斗
Owner HUAWEI MARINE NETWORKS CO LTD
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