Wireless digital communication system and method based on Rydberg atomic mixer

Abstract

The invention relates to a wireless digital communication system and method based on a Rydberg atomic mixer. The wireless digital communication system comprises cesium bubbles, a laser, a microwave source, a digital signal generator, a digital signal modulator, a power divider, a photoelectric detector and a digital signal demodulator. The caesium bubbles provide caesium atom gas under room-temperature saturated vapor pressure; the laser is used for preparing the cesium atom gas into a Rydberg state and generating an EIT effect; the digital signal generator generates a digital signal; the microwave source generates two microwaves with different frequencies; the digital signal modulator modulates the digital signal to one of the microwaves; the power divider performs addition operation on the modulated microwave and the other microwave in the time domain so as to achieve secondary modulation on the other microwave; the caesium bubble receives the secondarily modulated microwaves, generates a Rydberg state EIT-AT splitting process of the caesium atom gas, and converts the secondarily modulated microwaves into modulated light waves; the photoelectric detector receives the modulated light wave; the digital signal demodulator restores the digital signal from the modulated light wave.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a wireless digital communication system and method based on a Rydberg atomic mixer. Background technique [0002] At present, wireless digital communication has been widely used in production and life practice. Wireless digital communication has the advantages of strong anti-interference ability, controllable errors, and easy encryption. [0003] The inventor found in the research that the disadvantage of the traditional technology is that the existing wireless digital communication systems require complex circuit connection and processing such as filtering and amplification, resulting in relatively large thermal noise. Moreover, in the prior art, due to the constraints of circuit structure, material properties, working environment and other factors, the recognition accuracy of electromagnetic signals is relatively low, and the range of signal recognition and resp...

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Problems solved by technology

[0003] The inventor found in the research that the defect of the traditional technology is that the existing wireless digital communication system needs complex circuit connection and filtering and amplification processing, so the thermal noise is relatively large

Moreover, in the prior art, due to the constraints of circuit structure, material properties, working environment and other factors, the recognition accuracy of electromagnetic signals is relatively low, and the range of signal recognition and response is relatively small.

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