High frequency multiplication millimeter wave signal generator based on dpmzm and fwm effects
A signal generation and millimeter wave technology, applied in the field of microwave optoelectronics, can solve the problems of limited frequency multiplier and high phase noise of millimeter wave signals, and achieve the effect of frequency tunability, reduced frequency requirements, and good transmission performance.
Active Publication Date: 2022-06-21
TAIYUAN UNIV OF TECH
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Problems solved by technology
Based on the optical heterodyne method, the millimeter wave signal can be generated in the optical domain. The optical heterodyne method refers to the beat frequency of two light waves with different wavelengths on the photodetector (PD), and the millimeter wave signal generated at the output of the PD is equal to two The difference between two wavelengths, but since the phases of the two wavelengths are not correlated, the final mmWave signal has high phase noise.
In response to this problem, researchers have successively proposed many schemes, such as dual-wavelength laser sources, external modulation and other schemes, but they all have the limitation of limited frequency doubling multiples.
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[0037] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, not All the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present invention.
[0038] like figure 1 As shown, an embodiment of the present invention provides a device for generating a high frequency multiplied millimeter wave signal, including:
[0039] Laser source 1, used to generate laser light;
[0040] RF source 2, used to provide RF drive signal;
[0041] The dual-parallel Mach-Zehnder modulator module 3 is used to modulate the laser light through the radio frequency driving signal provided by...
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Abstract
The invention belongs to the technical field of microwave optoelectronics, and in particular relates to a high frequency multiplication millimeter wave signal generating device based on DPMZM and FWM effects. Comprising: a laser source, a radio frequency source, a dual-parallel Mach-Zehnder modulator module, a semiconductor optical amplifier, a wavelength division multiplexer, a power combiner and a photodiode, the present invention uses a dual-parallel Mach-Zehnder modulator module to Modulation is performed to generate ±6th-order optical sidebands, and four-wave frequency mixing is performed through a semiconductor optical amplifier to obtain ±18th-order optical sidebands; finally, a photodiode is used for beating frequency to obtain a 36-fold frequency millimeter signal. The transmission performance of the 36-fold frequency millimeter wave signal generated by the present invention is good, and the frequency requirements on the modulator and the oscillator are greatly reduced. At the same time, by changing the frequency of the local oscillator radio frequency signal, it is verified that the system has good frequency tunability.
Description
technical field [0001] The invention belongs to the technical field of microwave optoelectronics, and in particular relates to a high frequency doubling millimeter wave signal generating device based on DPMZM and FWM effects. Background technique [0002] In order to solve the electronic bottleneck problem encountered by microwave signals in the electrical domain, researchers proposed a microwave photonic solution. Microwave photonic technology has the following characteristics: (1) wide operating frequency band; (2) large transmission bandwidth; (3) low transmission loss; (4) Anti-electromagnetic interference; (5) Small size and low price. With the continuous development of microwave photonic technology, scientific researchers have proposed a technical scheme to use microwave photonic technology to generate high-frequency signals such as millimeter waves. Millimeter-wave photon generation is favored by researchers in many fields, such as fiber-optic wireless links, satelli...
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IPC IPC(8): H04B10/516
CPCH04B10/5161
Inventor 张朝霞王琨琨王倩周晓玲鲁雅
Owner TAIYUAN UNIV OF TECH