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Efficient compact non-blocking 4*4 waveguide optical switch matrix

A switching matrix, non-blocking technology, applied in the field of photonics devices, can solve the problems of large chip size and unfavorable high integration, and achieve the effect of reducing size, improving switching efficiency, and efficient and compact device structure

Active Publication Date: 2017-02-01
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the 4×4 non-blocking optical switch matrix has the disadvantages of large chip size and too many single 1×2 or 2×2 optical switches used in cascading, so it is not conducive to high integration

Method used

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  • Efficient compact non-blocking 4*4 waveguide optical switch matrix
  • Efficient compact non-blocking 4*4 waveguide optical switch matrix
  • Efficient compact non-blocking 4*4 waveguide optical switch matrix

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention should not be limited thereby.

[0027] Such as figure 1 As shown, the embodiment of the present invention provides a 4×4 non-blocking waveguide optical switch matrix, which includes 1. A highly efficient and compact non-blocking 4×4 waveguide optical switch matrix, which consists of six 2×2 Mach-Zehnder The optical switch forms a matrix form, and there are 2 groups of Mach-Zehnder optical switches in the horizontal direction, and the Mach-Zehnder optical switch M 1 , M 2 , M 3 as a group, the Mach-Zehnder optical switch M 4 , M 5 , M 6 For another group, vertical direction optical switch M 1 with optical switch M 4 Form the first sub-matrix Mst1, the vertical optical switch M 2 with optical switch M 5 Form the second sub-matrix Mst2, the vertical direction optical switch M 3 with optica...

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Abstract

The invention discloses an efficient compact non-blocking 4*4 waveguide optical switch matrix, which is formed by 6 efficient compact 2*2 Mach-Zehnder optical switches. The six 2*2 optical switches are formed by connecting two cross waveguides and four arc-shaped waveguides; and since the single switch structure and connection mode are symmetric, two-way transmission can be realized. Each 2*2 optical switch is a Mach-Zehnder interferometer structure formed by a micro-nano groove, a total reflection mirror, a phase shift arm and a reference arm, and on-off state of each switch can be changed by adjusting applied voltage value of the phase shift arm; a single-input single-output routing control method of the 4*4 optical switch matrix determines the on-off state of each switch through a table obtained after exhaustion; and according to a designed transmission matrix M44, loss of each transmission mode can be calculated conveniently. The optical switch matrix has the advantages of non-blocking performance, two-way transmission and small occupation area and the like.

Description

technical field [0001] The invention belongs to the technical field of photonic devices, and in particular relates to a high-efficiency, compact and non-blocking 4×4 waveguide optical switch matrix. Background technique [0002] With the rapid development of optical communication systems and the application of dense wavelength division multiplexing technology, the optical switch matrix has become one of the important devices in the field of optical communication. , the optical path signal on one channel can be converted to another channel as required. It is mainly used to implement functions such as routing selection, wavelength selection, optical add-drop multiplexing, optical cross-connection and self-healing protection on the optical signal level. At present, there are many types of optical switches, such as micro-electromechanical optical switches, thermo-optical switches, liquid crystal optical switches, and holographic optical switches. Since photonic integration is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/35G02B6/12
CPCG02B6/12G02B6/3542G02B6/3546G02B2006/12145
Inventor 刘克王乐王爽
Owner BEIJING UNIV OF TECH
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