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A method and device for optically generating a 16-fold frequency millimeter wave signal

A technology for generating devices and millimeter waves, applied in electromagnetic wave transmission systems, electrical components, transmission systems, etc., can solve the problems of high device matching requirements and reduce system transmission quality, and achieve simple equipment, reduce system costs, and reduce equipment frequency. The effect of index reduction

Active Publication Date: 2021-05-28
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because optical filter devices generally have wavelength dependence, the requirements for device matching are relatively high. In addition, due to the limitations of the filter itself, filtering will reduce the transmission quality of the entire system, so how to reduce the loss caused by filtering has become a problem.

Method used

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  • A method and device for optically generating a 16-fold frequency millimeter wave signal
  • A method and device for optically generating a 16-fold frequency millimeter wave signal
  • A method and device for optically generating a 16-fold frequency millimeter wave signal

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Effect test

Embodiment 1

[0038] Please see attached figure 1 , the present invention provides an optical generation device for a 16-frequency millimeter wave signal, comprising: a continuous laser 1, a first polarization controller 2, a polarization beam splitter 3, a first optical splitter 4, a first Mach-Zeng Del modulator 5, second Mach-Zehnder modulator 6, combiner 7, polarization beam combiner 8, optical coupler 9, second polarization controller 10, first polarizer 11, third polarization controller 12. Second polarizer 13, light emitting diode 14, photodiode 15, radio frequency signal source 16, first phase shifter 17, first electrical splitter 18, second electrical splitter 19, second phase shifter 20 , the third electrical splitter 21, the third phase shifter 22; wherein,

[0039] The output end of the continuous laser 1 is connected with the input end of the first polarization controller 2, the output end of the first polarization controller 2 is connected with the input end of the polarizati...

Embodiment 2

[0049] The present invention also provides a method for optically generating a 16-frequency millimeter wave signal, comprising the following steps:

[0050] S1: The angular frequency emitted from the CW laser is ω 0 The light wave passes through the first polarization controller, and then passes through the polarization beam splitter to divide the light into two orthogonal polarization directions, namely the x direction and the y direction; the upper path light is the x direction, and the lower path light is the y direction;

[0051] S2: The added light is divided into two paths by the first optical splitter, and the two paths of light are respectively injected into the corresponding first Mach-Zehnder modulator and the second Mach-Zehnder modulator. The first Mach-Zehnder modulation Both the Mach-Zehnder modulator and the second Mach-Zehnder modulator are biased at the maximum transmission point to suppress the generation of odd-order frequency bands, and the modulation indic...

Embodiment 3

[0056] The specific implementation steps of a method for optically generating a 16-frequency millimeter wave signal are as follows:

[0057] Step 1. The adjustable light source generates the working frequency f 0 It is a continuous light wave with 193.1THz, working wavelength of 1550nm and line width of 0.5MHz. The continuous light wave is divided and passed through the first polarization controller optical device to adjust the power ratio of the two orthogonal signals. Then the light wave passes through the polarization beam splitter to divide the light into two orthogonal polarization directions, namely the x direction and the y direction, wherein the upper path light is the x direction, and the lower path light is the y direction.

[0058] Step 2: The added light in the x-direction is divided into two paths of light by the first optical splitter, and the two paths of light are respectively injected into the corresponding two Mach-Zehnder modulators, and the half-wave voltag...

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Abstract

The invention discloses a method and device for optically generating a 16-fold frequency millimeter-wave signal. The device includes: a continuous laser, a first polarization controller, a polarization beam splitter, a first optical splitter, and a first Mach-Zehnder modulation device, second Mach-Zehnder modulator, combiner, polarization beam combiner, optical coupler, second polarization controller, first polarizer, third polarization controller, second polarizer, light emitting diode, Photodiode. The present invention greatly reduces the frequency index of equipment needed to generate high-frequency / very high-frequency signals, and the method does not require high-power optical amplifiers and electric amplifiers, thereby reducing system costs, simplifying the system structure, and not requiring Wavelength selective devices such as filters reduce the requirements for device matching.

Description

technical field [0001] The invention belongs to the technical field of optically generated millimeter waves, and more specifically relates to an optical generation method and device for a 16-frequency multiplied millimeter wave signal. Background technique [0002] From its birth in the 1980s to 2020, mobile communication technology will roughly experience five generations of development. By the end of 2014, the fourth-generation mobile communication technology (4G) network had covered more than 340 cities. 4G can transmit data, high-quality images, audio and video at a rate of more than 100Mbps, which is about 25 times higher than that of home broadband ADSL (ADSL, Asymmetric Digital Subscriber Line), and can meet most users' requirements for wireless services. In the process of upgrading, people's requirements for communication technology are becoming more and more stringent, which put forward high requirements for the communication capacity and transmission rate of the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/556
CPCH04B10/5563
Inventor 武增艳曹长庆曾晓东冯喆珺闫旭王婷吴谨吴启凡黄自强
Owner XIDIAN UNIV
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