Optical Switch Based on Stimulated Brillouin Scattering

A stimulated Brillouin, optical switch technology, applied in the field of optical communication, can solve the problems of inability to be fully compatible with optical communication systems, complex optical switch technology structure, low fiber coupling efficiency, etc., to achieve lossless transmission and improve extinction ratio. , the effect of compensating for light loss

Inactive Publication Date: 2018-03-27
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

[0003] Existing optical switch technologies usually include Mach-Zehnder interferometer optical switches, optical micro-electromechanical optical switches, and thermo-optic effect optical switches. Deficiencies in the existing optical communication systems such as complete compatibility

Method used

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  • Optical Switch Based on Stimulated Brillouin Scattering
  • Optical Switch Based on Stimulated Brillouin Scattering
  • Optical Switch Based on Stimulated Brillouin Scattering

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] see figure 1 , is a schematic diagram of an optical switch based on stimulated Brillouin scattering according to an embodiment of the present invention. The optical switch of this embodiment includes a first optical fiber 11, a second optical fiber 12, a first optical circulator 21, a second optical circulator 22, an optical attenuator 3, an optical isolator 4, a pump light source 5, and a fiber coupler 6 , the first polarization controller 71, the sec...

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Abstract

The invention provides an optical switch based on stimulated Brillouin scattering, which includes a first optical fiber, a first optical circulator, an optical attenuator, an optical isolator, a second optical fiber, and a second optical circulator connected in sequence And optical polarization beam splitter, the pumping light source is divided into the first pumping light and the second pumping light through the fiber coupler, respectively connected to the first polarization controller and the second polarization controller, the first polarization controller and the second polarization controller The controller is respectively connected to the first optical circulator and the second optical circulator, and the first optical fiber is used to receive signal light. When the pump light source is turned off, the signal light is output from the first polarization state port of the optical polarization beam splitter; when the pump light source is turned on, the stimulated Brillouin scattering effect generated in the two optical fibers makes the polarization state of the signal light After deflecting by 90 degrees, the signal light is output from the second polarization state port of the optical polarization beam splitter to realize the optical switch function. Through the above method, the optical switch of the present invention has the advantages of compatibility with existing optical communication systems, simple structure and easy adjustment.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical switch based on stimulated Brillouin scattering. Background technique [0002] An optical switch is a device with one or more transmission ports that can perform mutual conversion or logical operation on optical signals in optical transmission lines or integrated optical circuits. In recent years, the all-optical network based on DWDM (Dense Wavelength Division Multiplexing) has become an important development direction in the telecommunication network. Optical signals of different wavelengths must be routed in the network using optical switches. Switches can switch light waves in time, space, and wavelength, so optical switches are one of the key components of optical information systems such as optical communications, optical computers, and optical information processing. At present, optical switch technology is developing in the direction of large ext...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/01G02B6/293
CPCG02B6/293G02F1/0126G02F1/0136
Inventor 郑狄潘炜邹喜华闫连山罗斌
Owner SOUTHWEST JIAOTONG UNIV
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