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An n×n optical switch matrix capable of suppressing crosstalk and its signal transmission method

An optical switch matrix and optical switch technology, applied in the field of optical communication, can solve the problems of increased device cost, less than ideal, and increased control complexity, and achieve the effects of small control complexity, strong uniformity, and simple process

Active Publication Date: 2022-07-05
CHINA ELECTRONICS TECH GRP NO 23 RES INST
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Problems solved by technology

The disadvantages are: limited by the physical properties of the device, it is not ideal, the cost of the device increases, and the complexity of control increases, which is not conducive to the realization of large-scale cascaded optical switch arrays
The disadvantage is that although the network topology and the characteristics of the DWDM system are comprehensively considered, the complexity of the network nodes and the increase in the number of passive devices increase the cost of a single network node, which is also not conducive to large-scale cascaded optical switches. Implementation of the matrix

Method used

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  • An n×n optical switch matrix capable of suppressing crosstalk and its signal transmission method
  • An n×n optical switch matrix capable of suppressing crosstalk and its signal transmission method
  • An n×n optical switch matrix capable of suppressing crosstalk and its signal transmission method

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Embodiment Construction

[0044] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention, not for The invention is limited.

[0045] Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The suffixes "module" and "unit" of elements are used herein for convenience of description and thus may be used interchangeably without any distinguishable meaning or function.

[0046] Although all of the elements or units making up an embodiment of the invention are described as being combined into a single element or operating as a single element or unit, the invention is not necessarily limited to such an embodiment. Dependi...

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Abstract

An N×N optical switch matrix and a method for transmitting optical signals in the optical switch matrix. The optical switch matrix includes N inputs; N outputs; and N 2 optical switch units, the N 2 Optical switch units are located between the N input terminals and the N output terminals, and are connected in a crossover manner, and the initial state of each optical switch unit is set to a cross transmission state; When the ith input terminal and the jth output terminal in the optical switch matrix are connected, the (j, i)th optical switch unit in the optical switch matrix is ​​set to the straight-through transmission state. All other optical switch units in the i-th row and the j-th column maintain the cross-transmission state.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an electro-optical silicon-based waveguide N×N optical switch matrix with crosstalk suppression and a signal transmission method thereof. Background technique [0002] At present, there are many technical approaches for the realization of optical switches. One of the typical technologies is the interference type optical switch technology. The electro-optical silicon-based waveguide optical switch is a typical interference type optical switch that uses the plasmon dispersion effect of silicon for refractive index modulation. The switch, compared with other optical switch technologies, has outstanding advantages. However, when the plasmon dispersion effect of silicon is used to modulate the refractive index of silicon, it will be accompanied by parasitic absorption loss. The optical power in the optical switch is no longer maintained equal, and there is always a situ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/35
CPCG02B6/3546
Inventor 严亭李冰
Owner CHINA ELECTRONICS TECH GRP NO 23 RES INST
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