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Wavelength/wave band sharing conversion structure

A wave band and wavelength technology, applied in the field of multi-granularity optical switching structure, can solve the problems of high cost of optical network, waste of resources, etc., and achieve the effect of reducing cost, improving utilization rate and reducing quantity

Inactive Publication Date: 2009-12-09
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
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Problems solved by technology

[0003] The purpose of the present invention is to propose a shared optical switching device based on a wavelength converter, that is, based on sharing Optical switching structure of conversion cell

Method used

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  • Wavelength/wave band sharing conversion structure
  • Wavelength/wave band sharing conversion structure
  • Wavelength/wave band sharing conversion structure

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0012] figure 1 Shown is a schematic diagram of a multi-granularity optical cross-connect structure with a shared conversion pool. This structure is based on the multi-granularity optical cross-connect structure. Part of the output of the optical fiber cross-connect matrix FXC is connected to part of the input of the band cross-connect matrix BXC through a demultiplexer, and part of the output of BXC is connected to part of the input of FXC through a multiplexer; part of the output of BXC is connected through a demultiplexer The multiplexer is connected to part of the input of the wavelength cross-connect matrix WXC, and part of the output of WXC is connected to part of the input of BXC through the multiplexer; between the input / output ports of the wavelength cross-connect matrix WXC and the band cross-connect matrix BXC Connection between a s...

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Abstract

The invention relates to a wavelength / waveband share transfer structure, belonging to the light communication technique, wherein one share converter pool is between the input / output ports of wavelength cross connection matrix WXC and waveband cross connection matrix BXC of multi-particle light cross connection structure, to convert between waveband and wavelength. When special converter is not enough, the share converter can be used; the converted wavelength or waveband enters into the share converter pool to be converted in idle waveband converter or wavelength converter. Said share converter pool can flexibly convert waveband and wavelength, to effectively use the resource of converter, reduce the number of wavelength converter and reduce the cost.

Description

Technical field: [0001] The invention relates to optical network communication technology, in particular to a multi-granularity optical switching structure. Background technique: [0002] For an optical network, wavelength conversion is a necessary way to utilize resources, so a multi-granularity optical cross-connect structure must have the capability of wavelength conversion. An optical fiber in the existing Dense Wavelength Division Multiplexing (DWDM) optical network may have tens of thousands of wavelengths, but not all wavelengths in the optical fiber need to be converted at the same time. If each wavelength uses a In terms of wavelength converters, one optical fiber needs thousands of wavelength converters, which will greatly increase the cost of the optical network and waste the resources of wavelength converters. Although there are also literatures that propose using a waveband converter to reduce the cost of the optical network and reduce the resource waste of the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00H04B10/12
Inventor 阳小龙李培江隆克平黄胜邝育军
Owner CHONGQING UNIV OF POSTS & TELECOMM
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