Large-scale strict non-blockage light-crossing connection matrix structure and control method thereof

A technology of optical cross-connection and matrix structure, which is applied in the direction of selection devices, electrical components, selection devices, etc. The effect of large capacity, strict non-blocking, and high algorithm efficiency

Inactive Publication Date: 2008-10-01
TOEC TECH
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Problems solved by technology

However, in the telecom operation department, manual optical fiber wiring is still used to switch optical fiber routing. Manual wiring is inefficient and not suitable for large-scale routing switching. Automatic switching cannot be achieved and there is still routing congestion

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  • Large-scale strict non-blockage light-crossing connection matrix structure and control method thereof
  • Large-scale strict non-blockage light-crossing connection matrix structure and control method thereof
  • Large-scale strict non-blockage light-crossing connection matrix structure and control method thereof

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing and example.

[0024] Three 2×3 optical switch modules I1, I2, I3 are the input stage, three 3×3 optical switch modules R1, R2, R3 are the intermediate stages, and three 3×2 optical switch modules O1, O2, O3 are the output A 6×6 optical cross-connect matrix structure composed of stages (where r is 3, n is 2, and m is 3). The matrix structure is a three-stage symmetrical CLOS network, and three 2×3 optical switch modules, three 3×3 optical switch modules and three 3×2 optical switch modules are cross-symmetrically connected (see figure 2 ).

[0025] The optical cross connection of the three-stage optical switch module is that the three output ports of the first 2×3 optical switch module I1 of the input stage are respectively connected with the first input ports of the three 3×3 optical switch modules R1, R2, and R3 of the intermediate stage in sequence. The three output port...

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Abstract

The present invention provides a large-scale strictly nonblocking optical switching matrix structure and its control method. The optical switching matrix structure is a three-level symmetrical CLOS network, including an input level composed of r n*m optical switch module; a middle level composed of m r*r optical switch module; an output level composed of r m*n optical switch module, a symmetrical switching connection is between the three-level optical switching modules. The invention has advantages that the switching connection is routed configuration by large capacity connection fit for large scale optical switching; the matrix realizes the switching of N*N optical route, and when m>=2n-1, the matrix has strictly nonblocking ability, that is meeting the requirement of non error code produced by the non switching route when selecting the route, ensuring less optical switch generation switching as possible in each configuration; the invention has high efficient algorithm, accuracy and credibility, if the aim output state has N different states with the initial output states, only counting N times.

Description

technical field [0001] The invention relates to a configuration scheme and a control method of an optical cross-connect in optical communication and optical network transmission channels, in particular to a large-scale strict non-blocking optical cross-connect matrix structure and a control method thereof. Background technique [0002] With the rapid development of broadband telecommunication networks, the size of the international and domestic telecommunication markets has doubled several times, and optical fiber, as the main medium of telecommunication transmission, has been laid in every corner. However, in the telecom operation department, manual optical fiber wiring is still used to switch optical fiber routing. Manual wiring is inefficient and not suitable for large-scale routing switching. Automatic switching cannot be achieved and there is still routing congestion. Although a few telecom operators have begun to try to use optical cross-connect modules for optical fib...

Claims

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Application Information

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IPC IPC(8): H04Q11/00
Inventor 张志利张晓峰曹鹏飞朱力王卫龙王文薄郝书宁梁秀芹薄连安王润生
Owner TOEC TECH
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