Protective optical-fiber ring net special for single-fiber two-direction duplexing section

A technology that protects optical fibers and single-fiber bidirectionality. It is used in annular electromagnetic networks, wavelength division multiplexing systems, and electromagnetic network arrangements. It can solve problems such as inability to balance power and effectively suppress crosstalk.

Inactive Publication Date: 2006-10-25
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the shortcomings of the existing single-fiber bidirectional multiplex section special protection optical fiber ring network that cannot take into account power balance and effectively suppress crosstalk, the present invention provides a single-fiber bidirectional multiplex section special protection that can take into account power balance and effectively suppress crosstalk. Protecting Fiber Ring Networks

Method used

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  • Protective optical-fiber ring net special for single-fiber two-direction duplexing section
  • Protective optical-fiber ring net special for single-fiber two-direction duplexing section
  • Protective optical-fiber ring net special for single-fiber two-direction duplexing section

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] refer to Figure 1-8 , a single-fiber bidirectional multiplex section special protection optical fiber ring network, including working optical fiber, protection optical fiber, optical fiber node, the bidirectional working channel of the working optical fiber is configured with different working wavelength groups, and the wavelength configuration of the bidirectional protection channel of the protecting optical fiber is the same as that of the working optical fiber On the contrary, the optical fiber node is configured with the opposite working direction and the optical add-drop multiplexing device working group A and B corresponding to the two working wavelength groups, and the optical add-drop multiplexing device working in the opposite direction and corresponding to the two protection wavelength groups Device protection group C and D, four bidirectional coupler...

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Abstract

This invention relates to a special protection fiber ring net of a single-fiber two-way multiplex section including a working fiber, a protection fiber and fiber nodes, in which, the two-way working channel of the working fiber is configured with different working wave length sets, the wave length of the two-way protection channel of the protection fiber is configured opposite to the working fiber and said fiber nodes are configured with an optical fork multiplex device group, a protection group, four two-way couplers and eight 1x2 optical switches, the optical fork multiplex device working group includes two one-way devices and the protection group includes two one-way multiplex devices, both ends of which are connected with the fiber by a 1x2 switch and a two-way coupler.

Description

(1) Technical field [0001] The invention belongs to the technical field of optical fiber communication networks, and relates to a single-fiber bidirectional multiplexing section dedicated protection optical fiber ring network, the optical node of the ring network is an optical splitter based on an acousto-optic tunable filter (AOTF, Acousto-Optic Tunable Filter) Insert multiplexing device (OADM, Optical Add and Drop Multiplexer). (2) Background technology [0002] At present, the combination of wavelength division multiplexing (WDM, Wavelength Division Multiplexing) and synchronous digital system (SDH, Synchronous Digital Hierarchy) has been very mature, because of its huge transmission bandwidth, data transmission transparency and simple and practical protection technology , has developed rapidly in recent years and has become a mainstream technology in the construction of optical fiber communication networks. As more and more optical transmission systems are upgraded to W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/035H04B10/275H04J14/02
Inventor 乐孜纯王潇潇刘恺张明全必胜
Owner ZHEJIANG UNIV OF TECH
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