CN114448517A - Microwave communication device and method - Google Patents
Microwave communication device and method Download PDFInfo
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- CN114448517A CN114448517A CN202011214738.XA CN202011214738A CN114448517A CN 114448517 A CN114448517 A CN 114448517A CN 202011214738 A CN202011214738 A CN 202011214738A CN 114448517 A CN114448517 A CN 114448517A
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- 238000004891 communication Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000010355 oscillation Effects 0.000 claims abstract description 33
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 238000001228 spectrum Methods 0.000 claims abstract description 29
- 230000035559 beat frequency Effects 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 31
- 238000010168 coupling process Methods 0.000 claims description 31
- 238000005859 coupling reaction Methods 0.000 claims description 31
- 150000001340 alkali metals Chemical group 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 23
- 239000000523 sample Substances 0.000 claims description 13
- 229910052783 alkali metal Inorganic materials 0.000 claims description 10
- 230000005281 excited state Effects 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 8
- 230000005283 ground state Effects 0.000 claims description 6
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical group [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 3
- 230000003313 weakening effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
- G01J3/433—Modulation spectrometry; Derivative spectrometry
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/615—Arrangements affecting the optical part of the receiver
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a microwave communication device and a method, wherein the device comprises: the device comprises a first laser transmitter, a second laser transmitter, a dichroic mirror, a microwave signal receiver, a first microwave source, a second microwave source, a photoelectric detector and a demodulator. According to the invention, an electromagnetic induction transparent spectrum signal generated when the rydberg atoms and microwaves act is used as a detection means, and beat frequency is generated on a microwave signal receiver through a first microwave source and a second microwave source, so that the electromagnetic induction transparent spectrum signal of the rydberg atoms generates sinusoidal oscillation to obtain a sinusoidal oscillation signal. The weak carrier signal can be received by detecting the signal to be modulated and the sinusoidal oscillation signal loaded on the second microwave, so that microwave communication is realized.
Description
Technical Field
The present invention relates to the field of microwave signal receiving technology, and in particular, to a microwave communication device and method.
Background
Microwave communication has become a main means for communication in the fields of daily life, military activities, aerospace and the like. Conventional microwave communication is based on receiving microwave signals by dipole antennas. However, the conventional microwave communication method is limited by the detection sensitivity, the minimum inductible microwave intensity is about 1mV/cm, and it is difficult to receive an extremely weak carrier signal, which makes it difficult to realize ultra-long distance transmission. In addition, for carrier signals of different frequency bands, the traditional microwave communication method needs to use different receiving antennas for receiving, thereby increasing the operation complexity and improving the industrial production cost.
Disclosure of Invention
The invention aims to provide a microwave communication device and a microwave communication method, which are used for receiving weak carrier signals and realizing microwave communication.
In order to achieve the purpose, the invention provides the following scheme:
a microwave communication device, comprising:
a first laser transmitter for transmitting probe light;
the reflector is arranged on an emergent light path of the first laser transmitter and used for reflecting the detection light;
a second laser transmitter for transmitting the coupled light;
the dichroic mirror is arranged on an emergent light path of the second laser transmitter and is used for reflecting the coupling light;
the microwave signal receiver is arranged on a reflection light path of the detection light and the coupling light and is used for coupling the detection light and the coupling light to excite alkali metal atoms to obtain Reedberg atoms; the microwave signal receiver is an insulating medium steam pool filled with alkali metal atoms; the microwave signal receiver is also used for receiving a microwave signal to be modulated;
the first microwave source is arranged on one side of the microwave signal receiver and used for emitting first microwaves, the first microwaves act on the microwave signal receiver to weaken the electromagnetic induction transparent spectrum signals of the rydberg atoms and obtain weakened electromagnetic induction transparent spectrum signals;
the second microwave source is arranged on one side or the other side of the microwave signal receiver and used for emitting second microwaves, the second microwaves act on the microwave signal receiver to generate beat frequency with the first microwave signal, and the weakened electromagnetic induction transparent spectrum signal generates sinusoidal oscillation to obtain a sinusoidal oscillation signal;
the photoelectric detector is arranged on a transmission light path of the dichroic mirror and used for receiving a transmission signal transmitted by the dichroic mirror; the transmission signal is a superposed signal of a microwave signal to be modulated and the sinusoidal oscillation signal, which are loaded on the second microwave in an amplitude or frequency modulation mode;
and the demodulator is arranged on one side of the photoelectric detector, which is far away from the dichroic mirror, and is used for demodulating the transmission signal to realize microwave communication.
Optionally, the dichroic mirror transmits the probe light.
Optionally, the frequency of the probe light is locked on a resonance transition line from the ground state to the first excited state of the alkali metal atom; the coupling light couples transitions of a first excited state and a rydberg state of the alkali metal atom; the frequency of the detection light and the frequency of the coupling light meet the condition that the electromagnetic induction of the Reedberg atom ladder type three-level system of the alkali metal atoms is transparent.
Optionally, the frequency of the microwave emitted by the first microwave source is equal to the frequency difference between the rydberg state and the adjacent rydberg state; the frequency of the microwave emitted by the second microwave source is not equal to the frequency of the microwave emitted by the first microwave source.
Optionally, the ground state is 6S1/2F is 4 and the first excited state is 6P3/2F ═ 5, and the rydberg state is nS1/2/nD5/2,3/2。
Optionally, the frequency range of the microwave emitted by the second microwave source is 1GHz-1000 GHz.
Optionally, the wavelength of the probe light is 852nm, and the wavelength of the coupling light is 510 nm.
Optionally, the output power of the first microwave source is such that the AT split peak spacing generated by the stepped-form three levels of rydberg atoms is equal to the line width of the electromagnetically induced transparent spectral signal.
Optionally, the alkali metal atom is a cesium atom.
A method of microwave communication, comprising:
exciting alkali metal atoms in the insulating medium steam pool by utilizing the detection light and the coupling light to obtain Reidberg atoms;
weakening the electromagnetic induction transparent spectrum signal of the rydberg atoms by using first microwaves to act on the insulating medium steam pool to obtain a weakened electromagnetic induction transparent spectrum signal;
using second microwaves to act on the insulating medium steam pool, and enabling the weakened electromagnetic induction transparent spectrum signal to generate sinusoidal oscillation to obtain a sinusoidal oscillation signal;
superposing a microwave signal to be modulated loaded on the second microwave in an amplitude or frequency modulation mode and the sinusoidal oscillation signal to obtain a transmission signal;
and demodulating the transmission signal to realize microwave communication.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention discloses a microwave communication device and a method, comprising the following steps: a first laser transmitter for transmitting probe light; the reflector is arranged on an emergent light path of the first laser transmitter and used for reflecting the detection light; a second laser transmitter for transmitting the coupled light; the dichroic mirror is arranged on an emergent light path of the second laser transmitter and is used for reflecting the coupling light; the microwave signal receiver is arranged on a reflection light path of the detection light and the coupling light and is used for coupling the detection light and the coupling light to excite alkali metal atoms to obtain Reedberg atoms; the microwave signal receiver is also used for receiving a microwave signal to be modulated; the microwave signal receiver is an insulating medium steam pool filled with alkali metal atoms; the first microwave source is arranged on one side of the microwave signal receiver and used for emitting first microwaves, the first microwaves act on the microwave signal receiver to weaken the electromagnetic induction transparent spectrum signals of the rydberg atoms and obtain weakened electromagnetic induction transparent spectrum signals; the second microwave source is arranged on one side or the other side of the microwave signal receiver and used for emitting second microwaves, the second microwaves act on the microwave signal receiver to generate beat frequency with the first microwave signal, and the weakened electromagnetic induction transparent spectrum signal generates sinusoidal oscillation to obtain a sinusoidal oscillation signal; the photoelectric detector is arranged on a transmission light path of the dichroic mirror and used for receiving a transmission signal transmitted by the dichroic mirror; the transmission signal is a superposed signal of a microwave signal to be modulated and the sinusoidal oscillation signal, which are loaded on the second microwave in an amplitude or frequency modulation mode; and the demodulator is arranged on one side of the photoelectric detector, which is far away from the dichroic mirror, and is used for demodulating the transmission signal to realize microwave communication.
According to the invention, an electromagnetic induction transparent spectrum signal generated when the rydberg atoms and microwaves act is used as a detection means, and beat frequency is generated on a microwave signal receiver through a first microwave source and a second microwave source, so that the electromagnetic induction transparent spectrum signal of the rydberg atoms generates sinusoidal oscillation to obtain a sinusoidal oscillation signal. The weak carrier signal can be received by detecting the signal to be modulated and the sinusoidal oscillation signal loaded on the second microwave, so that microwave communication is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a structural diagram of a microwave communication device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a three-level system energy level of a Reidberg atom provided by an embodiment of the invention;
FIG. 3 is a graph comparing a first signal provided by an embodiment of the present invention;
fig. 4 is a diagram comparing a second signal according to an embodiment of the present invention.
Description of the symbols: the microwave signal detection device comprises a microwave signal receiver 1, a first laser transmitter 2, a second laser transmitter 3, a reflecting mirror 4, a dichroic mirror 5, a photoelectric detector 6, a demodulator 7, a first microwave source 8 and a second microwave source 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a microwave communication device and a microwave communication method, which are used for receiving weak carrier signals and realizing microwave communication.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a structural diagram of a microwave communication device according to an embodiment of the present invention, where the microwave communication device includes:
and a first laser emitter 2 for emitting probe light.
And the reflecting mirror 4 is arranged on the emergent light path of the first laser emitter 2 and used for reflecting the detection light.
And a second laser transmitter 3 for transmitting the coupled light.
And the dichroic mirror 5 is arranged on an emergent light path of the second laser emitter 3 and used for reflecting the coupling light. Wherein the dichroic mirror 5 transmits the detection light.
And the microwave signal receiver 1 is arranged on a reflection light path of the detection light and the coupling light and is used for coupling the detection light and the coupling light to excite alkali metal atoms to obtain rydberg atoms. The microwave signal receiver 1 is an insulating medium steam pool filled with alkali metal atoms. Wherein the alkali metal atom is a cesium atom. The microwave signal receiver 1 is also used for receiving a microwave signal to be modulated.
And the first microwave source 8 is arranged on one side of the microwave signal receiver 1 and is used for emitting first microwaves, and the first microwaves act on the microwave signal receiver 1 to weaken the electromagnetic induction transparent spectrum signals of the rydberg atoms and obtain the weakened magnetic induction transparent spectrum signals.
And the second microwave source 9 is arranged on the other side of the microwave signal receiver 1 and is used for emitting second microwaves, and the second microwaves act on the microwave signal receiver 1 to generate beat frequency with the first microwave signals, so that the weakened magnetic induction transparent spectrum signals generate sinusoidal oscillation to obtain sinusoidal oscillation signals. In a particular embodiment, the second microwave source 9 may also be arranged on the same side of the microwave signal receiver 1 as the first microwave source 8.
And the photoelectric detector 6 is arranged on the transmission light path of the dichroic mirror 5 and is used for receiving the transmission signal transmitted by the dichroic mirror 5. The transmission signal is a superposed signal of a microwave signal to be modulated and a sinusoidal oscillation signal which are loaded on the second microwave in an amplitude or frequency modulation mode.
And the demodulator 7 is arranged on one side of the photoelectric detector 6, which is far away from the dichroic mirror 5, and is used for demodulating the transmission signal and realizing microwave communication.
Preferably, the probe light has a wavelength of 852nm and is frequency-locked to the ground state 6S of the alkali metal atom1/2And F is 4 to the resonant transition line of the first excited state. The wavelength of the coupled light is 510nm, and the coupled light is coupled with the first excited state 6P of the alkali metal atom3/2F' ═ 5 and a transition to the Reidberg state, where Reidberg state is nS1/2/nD5/2,3/2. The frequency of the detection light and the coupling light meets the condition that the electromagnetic induction of the Reedberg atom ladder type three-level system of the alkali metal atoms is transparent. Fig. 2 is a schematic energy level diagram of a three-level system of rydberg atoms according to an embodiment of the present invention.
Preferably, the frequency of the microwave emitted by the first microwave source 8 is equal to the frequency difference between a rydberg state and its neighboring rydberg state. The frequency of the microwave emitted by the second microwave source 9 is not equal to the frequency of the microwave emitted by the first microwave source, and the range is 1GHz-1000 GHz.
Preferably, the output power of the first microwave source 8 is such that the AT split peak spacing generated by the stepped-type three levels of the rydberg atoms is equal to the line width of the electromagnetically induced transparent spectral signal.
The principle of the application is as follows:
the first laser emitter 2 emits detection light which is reflected by the reflecting mirror 4, and when the dichroic mirror 5 is not arranged, the reflected light of the detection light can be absorbed by the microwave signal receiver 1. When the dichroic mirror 5 is arranged, the coupling light emitted by the second laser emitter 3 is reflected by the dichroic mirror 5, the reflected light of the coupling light and the reflected light of the detection light are overlapped and coupled at the microwave signal receiver 1, and the detection light can be transmitted by the dichroic mirror 5, so that the transmitted detection light is received by the photoelectric detector.
Frequency locking of probe light to ground state 6S of alkali metal atom1/2And F is 4 to the resonant transition line of the first excited state. First excited state 6P of coupled optical coupling alkali metal atom3/2F' ═ 5 and a transition to the Reidberg state, where Reidberg state is nS1/2/nD5/2,3/2. The frequency of the detection light and the coupling light meets the condition that the electromagnetic induction of the Reedberg atom ladder type three-level system of the alkali metal atoms is transparent. Therefore, the reflected light of the coupling light and the reflected light of the probe light excite the alkali metal atoms in the microwave signal receiver 1, resulting in the rydberg atoms.
The frequency of the microwave emitted by the first microwave source 8 and the rydberg state r ═ nS1/2/nD5/2,3/2To another adjacent Reidberg state r '═ n' P3/2/,1/2Are equally spaced. AT this time, the first microwave source 8 acts to cause AT (Autler-Townes) splitting of the electromagnetic induction transparent spectrum of the rydberg atoms, so that the electromagnetic induction transparent spectrum is weakened, and the photoelectric detector 6 can detect signals.
At the same time, the second microwave source 9 emits a second microwave having a detuning amount δ f with respect to the first microwave to act on the microwave signal receiver 1, producing a beat frequency with the first microwave signal such that the microwaves felt by the rydberg atoms are the first microwave signal plus a sinusoidal oscillation signal having a frequency δ f and an amplitude of the second microwave intensity. The rydberg atoms act as a quantum beat frequency to directly read out the sinusoidal oscillation signal with frequency δ f and are detected by the photodetector 6. At this time, amplitude modulation or frequency modulation is carried out on a signal to be modulated, the amplitude or the frequency of the detected sinusoidal oscillation signal with the frequency delta f can change, the changed sinusoidal oscillation signal with the frequency delta f is demodulated by adopting a reference signal with the same frequency delta f, or a phase-locked loop is used for demodulating, so that the modulated signal can be obtained, and microwave communication is realized. Fig. 3 is a first signal comparison diagram of an audio signal loaded to a weak microwave field by amplitude modulation and a signal read by the apparatus according to an embodiment of the present invention. Fig. 4 is a second signal comparison diagram provided in the embodiment of the present invention, which is a comparison diagram of a sinusoidal signal loaded to a weak microwave field by a frequency modulation method and a signal read by the present apparatus.
The invention also provides a microwave communication method, which comprises the following steps:
step 101: and exciting alkali metal atoms in the insulating medium steam pool by utilizing the detection light and the coupling light to obtain the Reidberg atoms.
Step 102: and weakening the electromagnetic induction transparent spectrum signal of the rydberg atoms by using a first microwave to act on the insulating medium steam pool to obtain the weakened electromagnetic induction transparent spectrum signal.
Step 103: using second microwaves to act on the insulating medium steam pool, and enabling the weakened electromagnetic induction transparent spectrum signal to generate sinusoidal oscillation to obtain a sinusoidal oscillation signal;
step 104: superposing a microwave signal to be modulated loaded on the second microwave in an amplitude or frequency modulation mode and the sinusoidal oscillation signal to obtain a transmission signal;
step 105: and demodulating the transmission signal to realize microwave communication.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the invention, the electromagnetic induction transparent spectrum of the rydberg atoms to the microwave field is used as a detection means, the beat frequency is generated on the microwave signal receiver through the first microwave source and the second microwave source, so that the electromagnetic induction transparent spectrum signals of the rydberg atoms generate sinusoidal oscillation, the weak carrier signal can be received by detecting the change of the oscillation signal, the microwave communication is realized, and the defect of low sensitivity of the traditional microwave communication receiver is overcome. And the microwave signal receiver has no interference to the electric field, the device is simple, and the miniaturization is easy to realize.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist in understanding the core concepts of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A microwave communication device, comprising:
a first laser transmitter for transmitting probe light;
the reflector is arranged on an emergent light path of the first laser transmitter and used for reflecting the detection light;
a second laser transmitter for transmitting the coupled light;
the dichroic mirror is arranged on an emergent light path of the second laser transmitter and is used for reflecting the coupling light;
the microwave signal receiver is arranged on a reflection light path of the detection light and the coupling light and is used for coupling the detection light and the coupling light to excite alkali metal atoms to obtain Reedberg atoms; the microwave signal receiver is an insulating medium steam pool filled with alkali metal atoms; the microwave signal receiver is also used for receiving a microwave signal to be modulated;
the first microwave source is arranged on one side of the microwave signal receiver and used for emitting first microwaves, the first microwaves act on the microwave signal receiver to weaken the electromagnetic induction transparent spectrum signals of the rydberg atoms and obtain weakened electromagnetic induction transparent spectrum signals;
the second microwave source is arranged on one side or the other side of the microwave signal receiver and used for emitting second microwaves, the second microwaves act on the microwave signal receiver to generate beat frequency with the first microwave signal, and the weakened electromagnetic induction transparent spectrum signal generates sinusoidal oscillation to obtain a sinusoidal oscillation signal;
the photoelectric detector is arranged on a transmission light path of the dichroic mirror and used for receiving a transmission signal transmitted by the dichroic mirror; the transmission signal is a superposed signal of a microwave signal to be modulated and the sinusoidal oscillation signal, which are loaded on the second microwave in an amplitude or frequency modulation mode;
and the demodulator is arranged on one side of the photoelectric detector, which is far away from the dichroic mirror, and is used for demodulating the transmission signal to realize microwave communication.
2. The microwave communication device according to claim 1, wherein the dichroic mirror transmits the probe light.
3. The microwave communication device according to claim 1, wherein the frequency of the probe light is locked on a resonance transition line from a ground state to a first excited state of the alkali metal atom; the coupling light couples transitions of a first excited state and a rydberg state of the alkali metal atom; the frequency of the detection light and the frequency of the coupling light meet the condition that the electromagnetic induction of the Reedberg atom ladder type three-level system of the alkali metal atoms is transparent.
4. A microwave communication device according to claim 3 wherein the frequency of the microwave emitted by the first microwave source is equal to the frequency difference between the riedberg regime and its neighbouring riedberg regime; the frequency of the microwave emitted by the second microwave source is not equal to the frequency of the microwave emitted by the first microwave source.
5. Microwave communication device according to claim 4, characterized in that the ground state is 6S1/2F is 4 and the first excited state is 6P3/2F ═ 5, and the rydberg state is nS1/2/nD5/2,3/2。
6. The microwave communication device according to claim 4, wherein the frequency range of the microwave emitted from the second microwave source is 1GHz-1000 GHz.
7. The microwave communication device according to claim 1, wherein the probe light has a wavelength of 852nm and the coupling light has a wavelength of 510 nm.
8. A microwave signal receiving device according to claim 3, wherein the output power of the first microwave source is such that the AT split peak spacing generated by the stepped three levels of rydberg atoms is equal to the line width of the electromagnetically induced transparent spectroscopic signal.
9. Microwave communication device according to claim 1, characterized in that the alkali metal atoms are cesium atoms.
10. A microwave communication method, comprising:
exciting alkali metal atoms in the insulating medium steam pool by utilizing the detection light and the coupling light to obtain Reidberg atoms;
weakening the electromagnetic induction transparent spectrum signal of the rydberg atoms by using first microwaves to act on the insulating medium steam pool to obtain a weakened electromagnetic induction transparent spectrum signal;
using second microwaves to act on the insulating medium steam pool, and enabling the weakened electromagnetic induction transparent spectrum signal to generate sinusoidal oscillation to obtain a sinusoidal oscillation signal;
superposing the microwave signal to be modulated loaded on the second microwave in an amplitude or frequency modulation mode and the sinusoidal oscillation signal to obtain a transmission signal;
and demodulating the transmission signal to realize microwave communication.
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Cited By (4)
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