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Switch array based on arc waveguide all-optical switch

A switch array and all-optical switch technology, applied in the optical field, can solve the problems of incompetent switching of higher speed, complicated manufacturing process, rising manufacturing cost, etc., and achieve the effects of simple structure, simple manufacturing and low manufacturing cost.

Inactive Publication Date: 2004-02-25
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These switch arrays use external control circuits to change the refractive index of the waveguide through thermo-optic and electro-optic effects to achieve the purpose of switching on. These external controls need to make electrodes, heaters, etc. while making the waveguide, which makes the manufacturing process more complicated and the manufacturing cost rises.
In addition, the response magnitude of the thermo-optic and electro-optic effects of these switch arrays is only on the order of nanoseconds, which is not suitable for higher-speed switching.

Method used

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  • Switch array based on arc waveguide all-optical switch
  • Switch array based on arc waveguide all-optical switch
  • Switch array based on arc waveguide all-optical switch

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Embodiment Construction

[0021] The working principle of this optical switch array will be discussed in detail below through the 4×4 banyan switching network formed by the Kerr effect arc waveguide optical switch of the present invention.

[0022] figure 1 In the 4×4 banyan switching array, the constituent units 9, 10, 11, and 12 are all arc-shaped waveguide all-optical switches. Each arc waveguide all-optical switch has two input ports and two output ports, and the shape of the switch is two adjacent arcs.

[0023] Assuming that light is input from port 1, the output is 1 when it is output from port 1', which is called the through state, and it is 0 when it is output from port 2', which is called the cross state. Of course, due to the symmetry of the arc-shaped waveguide all-optical switch, when light is input from 2, the output is 1 (straight-through state) when output from port 2', and 0 (cross state) when output from port 1'.

[0024] The constituted switch array has four input ports 1, 2, 3, 4 ...

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Abstract

A n X n switch array of all-optical switch based on arc waveguide is characterized by use of the all-optical switch with arc waveguide based on Kerr effect as its switch unit, the switch units are connected with each other in traditional shuffle mode, and different switch units can have different switch characteristics. Its advantages are simple structure, low cost and high switching speed.

Description

Technical field: [0001] The invention relates to an optical switch array, in particular to a switch array based on an arc-shaped waveguide all-optical switch, which uses the light intensity of input light to perform switch control, and belongs to the field of optical technology. Background technique: [0002] Optical fiber communication is attracting more and more attention. With the dramatic increase of communication capacity, it is difficult for electronic devices to adapt to high-speed and large-capacity communication requirements. Only by adopting optical switching technology can this problem be solved, and the optical switch array is an important device that composes the optical switching components. Optical switch arrays can be divided into mechanical optical switch arrays and waveguide optical switch arrays. Waveguide optical switch arrays have faster switching speeds than mechanical switch arrays and are usually used in high-speed optical communication systems. Amo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/35
Inventor 金国良刘刚军白玉强
Owner SHANGHAI JIAOTONG UNIV