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Single fiber bidirectional transmission multi wave length optical network system capable of realizing partial wave length reusing

A multi-wavelength optical network, single-fiber bidirectional technology, applied in the field of single-fiber bidirectional transmission multi-wavelength optical network systems, can solve problems such as excessive fiber length, and achieve the effects of increasing throughput, reducing queuing delay, and improving network performance

Inactive Publication Date: 2003-07-02
SHANGHAI BELL
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Problems solved by technology

At present, among the existing solutions, the dual-star structure is mainly adopted, but none of them solves the problem that the optical fiber used in the network is too long, that is, each node in the network still needs to use two optical fibers to connect to the central star coupler

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  • Single fiber bidirectional transmission multi wave length optical network system capable of realizing partial wave length reusing
  • Single fiber bidirectional transmission multi wave length optical network system capable of realizing partial wave length reusing
  • Single fiber bidirectional transmission multi wave length optical network system capable of realizing partial wave length reusing

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Embodiment Construction

[0015] figure 1 It is a block diagram of the present invention. In the present invention, the single-fiber bidirectional transmission multi-wavelength optical network system that can realize partial wavelength reuse is composed of a connection / control module 1, two bidirectional star couplers 2 and several nodes 3, and each bidirectional star coupler 2 They are respectively connected to the connection / control module 1 through an optical fiber, and the two bidirectional star couplers 2 are connected through the connection / control module 1, and they are not directly connected to each other, and the information transmission between them must pass through the connection / control module 1: In this kind of information transmission, the information is in a straight-through state when it passes through the connection / control module 1, and does not need to be forwarded by the connection / control module 1; each two-way star coupler can connect (N-1) nodes, and each node It is connected t...

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Abstract

A multi-wavelength optical network using single-fibre bidirectional transmission to realize the multiplexing of partial wavelengthes is composed of a link / control module, two bidirectional star couplers and 2(N-1) nodes. Each bidirectional star coupler is connected to the link / control module via a port and an optical fiber, and can be connected to (N-1) nodes via an optical fibre for each node. Its advantages are more number of nodes (increased by one time), high network through put, short time delay, and optical fibres saved by one time.

Description

(1) Technical field [0001] The invention relates to a single-fiber bidirectional transmission multi-wavelength optical network system capable of realizing partial wavelength reuse. (2) Background technology [0002] In the conventional WDM (Wavelength Division Multiplexing) star network, the information is only directly connected through a single channel during the transmission process from the source node to the destination node, without relay node forwarding, that is, it is a single-hop multi-wavelength optical network . Because at the same time, each communication node has to occupy a separate wavelength, so the scale of the network is severely limited by the limited channel wavelengths that are actually available. In addition, each node in the network needs to use two optical fibers to connect with the central star coupler. On the whole, the optical fiber used in the network is too long. Wavelength reuse is the main way to solve the limitation of conventional WDM star ...

Claims

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Application Information

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IPC IPC(8): G02B6/24H04B10/25H04B10/272H04J14/02
Inventor 甘朝钦许宗幸孙展
Owner SHANGHAI BELL
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