CN113422649A - Microwave photon frequency doubling and shifting device and frequency shifting method - Google Patents

Microwave photon frequency doubling and shifting device and frequency shifting method Download PDF

Info

Publication number
CN113422649A
CN113422649A CN202110596721.3A CN202110596721A CN113422649A CN 113422649 A CN113422649 A CN 113422649A CN 202110596721 A CN202110596721 A CN 202110596721A CN 113422649 A CN113422649 A CN 113422649A
Authority
CN
China
Prior art keywords
frequency
optical
modulator
signal
microwave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110596721.3A
Other languages
Chinese (zh)
Other versions
CN113422649B (en
Inventor
高永胜
谭佳俊
王鑫圆
董洪建
张京
樊养余
谭庆贵
蒋炜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northwestern Polytechnical University
Original Assignee
Northwestern Polytechnical University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northwestern Polytechnical University filed Critical Northwestern Polytechnical University
Priority to CN202110596721.3A priority Critical patent/CN113422649B/en
Publication of CN113422649A publication Critical patent/CN113422649A/en
Application granted granted Critical
Publication of CN113422649B publication Critical patent/CN113422649B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • H04B10/516—Details of coding or modulation
    • H04B10/5165—Carrier suppressed; Single sideband; Double sideband or vestigial
    • 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
    • H04B10/516—Details of coding or modulation
    • H04B10/548—Phase or frequency modulation
    • H04B10/556—Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK]
    • H04B10/5561—Digital phase modulation
    • 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
    • H04B10/516—Details of coding or modulation
    • H04B10/548—Phase or frequency modulation
    • H04B10/556—Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK]
    • H04B10/5563—Digital frequency modulation
    • 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
    • H04B10/70—Photonic quantum communication

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

The invention provides a microwave photon frequency doubling and shifting device and a frequency shifting method.A laser output optical port is connected with an input optical port of a modulator, the output optical port of the modulator is connected with a common input port of a MZI, the MZI outputs two paths of light, one path of light enters an optical coupler together with the other path of light after passing through a PM, an optical signal output by the optical coupler is connected with an optical input port of a BPD, a signal to be shifted is connected with a radio frequency input port of the modulator, and a DDS output electric signal is connected with a radio frequency input port of the PM. The invention has the advantages of simple structure, large bandwidth, small stray distortion, cascade expansion and the like, can improve the working frequency range and the signal bandwidth, reduce the stray distortion of the signals after frequency shift, and has the advantage of anti-electromagnetic interference; the method can meet the requirement of radar target dynamic Doppler frequency shift simulation, has the advantages of expandable channel and capability of realizing multistage frequency shift accumulation, and has high conversion efficiency and small stray distortion.

Description

Microwave photon frequency doubling and shifting device and frequency shifting method
Technical Field
The invention relates to the technical field of microwave photons and radars, in particular to a microwave photon frequency doubling and shifting device and a frequency shifting method.
Background
Microwave frequency shifters have been widely used in systems such as electronic countermeasure, multiple access communication, and radar measurement. In an electronic countermeasure system, a microwave frequency shifter may be used to apply false doppler shift information to a radar signal, for example, shifting a 12GHz carrier frequency of a radar signal by 25kHz, will output a false target signal at a speed of 312.5 m/s. In a frequency-controlled array radar system, in order to form an array beam with a certain frequency difference, a microwave frequency shifter is required to realize multi-channel frequency shift of radar signals.
The existing electronic system usually adopts a microwave I/Q mixer (i.e. a single-sideband frequency converter) to realize frequency shift of a microwave signal, but due to an electronic bottleneck, the microwave I/Q mixer has the problems of limited bandwidth, frequency dependence, stray distortion, electromagnetic interference and the like, and is difficult to realize frequency shift of a microwave signal with large bandwidth and low distortion.
In recent years, frequency shift methods based on microwave photon technology are reported at home and abroad, and the methods comprise optical fiber dispersion time-frequency mapping, acousto-optic modulation and microwave photon I/Q mixing. The Doppler frequency shift generated by the optical fiber dispersion time-frequency mapping method depends on the optical fiber dispersion value, so that the tuning performance is poor, and the requirement of radar target dynamic simulation is difficult to meet; the acousto-optic modulation method can only carry out single frequency shift, and is difficult to realize multiple frequency shifts; the microwave photon I/Q mixing efficiency is low, and the stray distortion is serious.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a microwave photon frequency doubling and shifting device and a frequency shifting method.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a microwave photon frequency doubling and shifting device comprises a laser, a Modulator, a Mach-Zehnder interferometer (MZI), a Direct Digital Synthesizer (DDS), a Phase Modulator (PM), an optical coupler and a Balanced Photoelectric Detector (BPD), wherein the output optical port of the laser is connected with an input optical port of the Modulator, the output optical port of the Modulator is connected with a common input port of the MZI, the MZI outputs two paths of light, one path of light passes through the PM and enters the optical coupler together with the other path of light, an optical signal output by the optical coupler is connected with an optical input port of the BPD, a to-be-shifted frequency signal is connected with a radio frequency input port of the Modulator, and the DDS outputs an electric signal to be connected with the radio frequency input port of the PM.
The laser generates a single wavelength optical carrier wave, which enters the modulator at a carrier frequency f0The modulator outputs symmetrical upper and lower optical sidebands +/-kf0Wherein k represents the optical sideband order, the upper optical sideband and the lower optical sideband are separated by MZI, the upper optical sideband is coupled with the lower optical sideband after phase modulation generates optical shift frequency delta f in PM, and 2kf is obtained by BPD photoelectric detection0The + Δ f signal not only achieves k-times multiplication of the modulated signal, but also shifts the signal by Δ f.
The invention also provides a frequency shifting method of the microwave photon frequency doubling and shifting device, which comprises the following specific steps:
the laser output light signal is denoted as Ec(t) the microwave signal input to the RF port of the modulator is represented as
Figure RE-GDA0003225831240000021
f0Refers to the frequency of the input microwave signal,
Figure RE-GDA0003225831240000022
referring to the initial phase of the input microwave signal, the upper and lower optical sideband signals output by the modulator are represented as:
EMZM＝Ec(t){J1(m)exp[j(2πkf0t)]-J1(m)exp[-j(2πkf0t)]}
wherein m is pi V/VπRepresenting the modulation index, V, of the microwave signalπIs the half-wave voltage of the modulator, Jn(. cndot.) is a Bessel function of order n, k being a positive integer;
the upper and lower optical sideband signals after passing through the MZI are respectively represented as:
Figure RE-GDA0003225831240000023
Figure RE-GDA0003225831240000024
sawtooth wave signal generated by DDS and upper sideband signal E1Phase modulation is performed, and the output optical signal is expressed as:
Figure RE-GDA0003225831240000025
wherein
Figure RE-GDA0003225831240000026
Is a frequency shift quantity, a frequency shift quantity and a frequency f of the sawtooth wavemSum amplitude VDDSHalf-wave voltage V of phase modulatorπ,PMFinally, the two signals are coupled through the BPD, and frequency-shifted signals after frequency multiplication are output:
Figure RE-GDA0003225831240000027
by setting the frequency f of the sawtooth wavemSum amplitude VDDSChange the frequency shift amount delta f when
Figure RE-GDA0003225831240000028
When the number is an integer n, accurate frequency shift nf is realizedmIf a negative slope sawtooth wave is used, it is trueNow a negative frequency shift.
Furthermore, the working point of the modulator is changed, the order k of the upper optical sideband and the lower optical sideband output by the modulator is 1,2 …, frequency doubling and frequency shifting of microwave signals with double frequency, quadruple frequency and even higher orders are finally realized, and the amplitude of the sideband can be adjusted by changing the modulation index of the modulator.
Furthermore, the MZI is adopted in the present invention to implement dual-channel filtering, and practically, Any Waveguide Grating (AWG), optical resonator, Fiber Bragg Grating (FBG), and Wavelength Division Multiplexer (WDM) may be used instead of the MZI.
Further, by cascading a plurality of phase modulators, the frequency shifts generated by each phase modulator are accumulated, and each phase modulator can generate a plurality of channels, frequency multiplication and frequency shift signals with frequency difference capable of being accumulated, namely, a first phase modulator generates a frequency shift Δ f, a second phase modulator generates a frequency shift 2 Δ f, and the like.
Furthermore, the frequency doubling function can be abandoned, the frequency shift of microwave signals without frequency doubling is realized, the device is the same as that in the figure 1, the modulator works at an orthogonal point, the modulator outputs an optical carrier and a positive-negative first-order optical sideband, the optical carrier and one of the optical sidebands (positive first-order or negative first-order) are separated through MZI, the optical carrier or the optical sidebands are modulated by a sawtooth wave phase, and frequency shift signals without frequency doubling can be obtained after beat frequency detection.
The invention has the beneficial effects that the microwave photon frequency doubling and shifting device and method have the advantages of simple structure, large bandwidth, small stray distortion, cascade expansion and the like. Compared with a microwave frequency shift method, the invention utilizes the advantages of photon technology to realize the frequency shift of broadband microwave signals in an optical domain, can improve the working frequency range and the signal bandwidth, reduces the stray distortion of the signals after frequency shift, and has the advantage of anti-electromagnetic interference; compared with the optical fiber dispersion time-frequency mapping method reported in recent years, the method avoids frequency dependence, has good frequency tunability, and can meet the requirement of radar target dynamic Doppler frequency shift simulation; compared with the acousto-optic modulation method, the invention has the advantages of expandable channel and capability of realizing multi-stage frequency shift accumulation; compared with the microwave photon I/Q frequency mixing method, the invention has high conversion efficiency and small stray distortion. Therefore, the invention has wide application prospect in radar target Doppler frequency shift simulation, radar parameter measurement, electronic countermeasure, multi-address communication and other electronic systems.
Drawings
FIG. 1 is a diagram of a microwave photon frequency doubling and shifting apparatus according to the present invention;
FIG. 2 is a double sideband signal output by the modulator;
FIG. 3 shows two signals output from the MZI: FIG. 3(a) is an upper sideband signal; FIG. 3(b) is a lower sideband signal;
FIG. 4 is an optical signal output by a phase modulator;
fig. 5 shows the frequency-multiplied and frequency-shifted signals output by the PD: FIG. 5(a) is a single channel frequency multiplied and shifted signal; FIG. 5(b) shows a multi-channel frequency multiplied and shifted signal.
Detailed Description
The invention is further illustrated with reference to the following figures and examples. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments:
in this embodiment, the apparatus includes: the device comprises a laser, a modulator, a dual-channel filter, a DDS, a PM, a BPD, a microwave signal source and a spectrum analyzer. The output optical port of the laser is connected with the input optical port of the modulator; the optical signal output by the modulator is divided into two paths by a dual-channel filter, one path is subjected to sawtooth phase modulation frequency shift and then is coupled with the other path to enter a BPD; the electrical output end of the BPD is connected with a spectrum analyzer; the microwave signal source is connected with the radio frequency port of the modulator, and the DDS output port is connected with the radio frequency port of the PM.
In the embodiment, the method comprises the following specific implementation steps:
the method comprises the following steps: the laser generates single carrier laser with power of 40 mW; the microwave signal source generates a sinusoidal signal with the frequency of 4GHz and the power of 5 dBm; the half-wave voltage of the modulator is 7V, the insertion loss is 6dB, and the extinction ratio is 35 dB; the rejection ratio of the dual-channel filter is 40 dB; the BPD responsivity is 1A/W; the repetition frequency of the sawtooth wave generated by the DDS is 500MHz, and the amplitude is 2V.
Step two: the modulator dc bias is set to 7V so that the modulator operates at a minimum point to produce a double sideband signal that suppresses the carrier, as shown in fig. 2.
Step three: the signal output by the modulator is subjected to dual-channel filtering, and two optical signals are output, wherein one optical signal includes an upper sideband and a frequency spectrum as shown in fig. 3(a), and the other optical signal includes a lower sideband and a frequency spectrum as shown in fig. 3 (b).
Step four: the upper sideband enters the PM, is modulated by the sawtooth wave to realize the optical frequency shift of 500MHz, as shown in figure 4, and then is coupled with the lower sideband and input into the BPD together.
Step five: the electrical signal output by the BPD enters a spectrum analyzer to obtain a microwave signal with a frequency of 8.5GHz, as shown in fig. 5(a), thereby realizing frequency doubling and 500MHz frequency shift of the 4GHz microwave signal.
Step six: by cascading a plurality of PMs, each PM is modulated by a sawtooth wave with 500MHz, a series of multi-channel frequency shift signals can be obtained finally: 8GHz, 8.5GHz, 9GHz, 9.5GHz, 10GHz, etc., as shown in FIG. 5 (b).
In summary, the microwave photon frequency doubling and shifting device and method of the invention have the advantages of simple structure, easy realization, large working bandwidth, small stray distortion, high tunability and cascade expansion.
In conclusion, the above-described embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, it should be noted that, for those skilled in the art, many equivalent variations and substitutions can be made on the disclosure of the present invention, and the laser wavelength and power, microwave signal format, frequency and power, amplitude, frequency and slope of sawtooth wave, half-wave voltage of PM, etc. can be changed. Such equivalent modifications and substitutions, as well as adjustments to the frequency range, should also be considered to be within the scope of the present invention.

Claims (6)

1. The utility model provides a microwave photon frequency doubling and frequency shift device, includes laser instrument, modulator, mascot interferometer, direct digital synthesizer, phase modulator, optical coupler and balanced photoelectric detector which characterized in that:
according to the microwave photon frequency doubling and shifting device, an output optical port of a laser is connected with an input optical port of a modulator, the output optical port of the modulator is connected with a common input port of a MZI, the MZI outputs two paths of light, one path of light enters an optical coupler together with the other path of light after passing through a PM, an optical signal output by the optical coupler is connected with an optical input port of a BPD, a signal to be shifted is connected with a radio frequency input port of the modulator, and a DDS output electric signal is connected with a radio frequency input port of the PM.
The laser generates a single wavelength optical carrier wave, which enters the modulator at a carrier frequency f0The modulator outputs symmetrical upper and lower optical sidebands +/-kf0Wherein k represents the optical sideband order, the upper optical sideband and the lower optical sideband are separated by MZI, the upper optical sideband is coupled with the lower optical sideband after phase modulation generates optical shift frequency delta f in PM, and 2kf is obtained by BPD photoelectric detection0The + Δ f signal not only achieves k-times multiplication of the modulated signal, but also shifts the signal by Δ f.
2. A frequency shifting method using the microwave photonic frequency doubling and shifting device of claim 1, comprising the steps of:
the laser output light signal is denoted as Ec(t) the microwave signal input to the RF port of the modulator is represented as
Figure FDA0003091413310000011
f0Refers to the frequency of the input microwave signal,
Figure FDA0003091413310000012
referring to the initial phase of the input microwave signal, the upper and lower optical sideband signals output by the modulator are represented as:
EMZM＝Ec(t){J1(m)exp[j(2πkf0t)]-J1(m)exp[-j(2πkf0t)]}
wherein m is pi V/VπRepresenting the modulation index, V, of the microwave signalπIs the half-wave voltage of the modulator, Jn(. cndot.) is a Bessel function of order n, k being a positive integer;
the upper and lower optical sideband signals after passing through the MZI are respectively represented as:
Figure FDA0003091413310000013
Figure FDA0003091413310000014
sawtooth wave signal generated by DDS and upper sideband signal E1Phase modulation is performed, and the output optical signal is expressed as:
Figure FDA0003091413310000015
wherein
Figure FDA0003091413310000016
Is a frequency shift quantity, a frequency shift quantity and a frequency f of the sawtooth wavemSum amplitude VDDSHalf-wave voltage of phase modulator
Figure FDA0003091413310000017
Finally, the two signals are coupled through the BPD, and frequency-shifted signals after frequency multiplication are output:
Figure FDA0003091413310000021
by setting the frequency f of the sawtooth wavemSum amplitude VDDSChange the frequency shift amount delta f when
Figure FDA0003091413310000022
When the number is an integer n, accurate frequency shift nf is realizedmIf a sawtooth wave with a negative slope is used, a negative frequency shift is realized.
3. The frequency shifting method of the microwave photonic frequency doubling and shifting device according to claim 2, wherein:
the working point of the modulator is changed, the order k of the upper optical sideband and the lower optical sideband output by the modulator is 1,2 …, the frequency doubling and frequency shifting of microwave signals with double frequency, quadruple frequency and even higher orders are finally realized, and the amplitude of the sideband can be adjusted by changing the modulation index of the modulator.
4. The microwave photonic frequency doubling and shifting device of claim 1, wherein:
any waveguide grating, an optical resonant cavity, a fiber Bragg grating and a wavelength division multiplexer are adopted to replace MZI to realize double-channel filtering.
5. The frequency shifting method of the microwave photonic frequency doubling and shifting device according to claim 2, wherein:
by cascading a plurality of phase modulators, the frequency shift generated by each phase modulator accumulates, and each phase modulator can generate a plurality of channels, frequency multiplication and frequency shift signals with frequency difference capable of accumulating, namely, a first phase modulator generates a frequency shift Δ f, a second phase modulator generates a frequency shift 2 Δ f, and the like.
6. The frequency shifting method of the microwave photonic frequency doubling and shifting device according to claim 2, wherein:
the frequency doubling function is abandoned, the frequency shifting without frequency doubling of the microwave signals is realized, the modulator works at an orthogonal point, the modulator outputs an optical carrier and a positive-negative first-order optical sideband, the optical carrier and one of the optical sidebands are separated through MZI, the optical carrier or the optical sidebands are subjected to sawtooth wave phase modulation, and the frequency shifting signal without frequency doubling can be obtained after beat frequency detection.
CN202110596721.3A 2021-05-31 2021-05-31 Microwave photon frequency doubling and shifting device and method Active CN113422649B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110596721.3A CN113422649B (en) 2021-05-31 2021-05-31 Microwave photon frequency doubling and shifting device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110596721.3A CN113422649B (en) 2021-05-31 2021-05-31 Microwave photon frequency doubling and shifting device and method

Publications (2)

Publication Number Publication Date
CN113422649A true CN113422649A (en) 2021-09-21
CN113422649B CN113422649B (en) 2022-10-14

Family

ID=77713345

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110596721.3A Active CN113422649B (en) 2021-05-31 2021-05-31 Microwave photon frequency doubling and shifting device and method

Country Status (1)

Country Link
CN (1) CN113422649B (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215373A2 (en) * 1985-09-18 1987-03-25 Siemens Aktiengesellschaft Method and arrangement for estimating the phase deviation, as well as a phase control method, in an optical synchronous receiver
CN101521962A (en) * 2009-04-03 2009-09-02 湖南大学 System for generating single side band high-frequency optical fiber millimeter wave and reusing wavelength
US20110170873A1 (en) * 2010-01-11 2011-07-14 Xiang Liu Apparatus and Method For Generating Frequency-Locked Optical Comb Sources
US20180031946A1 (en) * 2015-02-12 2018-02-01 Michigan Technological University Electro-optic modulator, microwave photonic link including an electro-optic modulator, and method of communicating a signal with an electro-optic modulator
CN108432127A (en) * 2015-10-28 2018-08-21 国家科学研究中心 The photon of the arbitrary microwave signal of linear frequency modulation generates device
CN109286124A (en) * 2018-09-18 2019-01-29 上海交通大学 Laser linewidth compression method and system
CN110031832A (en) * 2019-03-15 2019-07-19 西北工业大学 A kind of microwave photon Doppler shift measurement system and its adjusting method
CN110212987A (en) * 2019-06-11 2019-09-06 南京航空航天大学 RF linear FM signal generation method and device based on frequency spectrum splicing
CN110890901A (en) * 2019-12-03 2020-03-17 西北工业大学 Double-optical-comb multi-frequency-multiplication-factor frequency spectrum spreading frequency modulation signal generation system and implementation method
CN111193548A (en) * 2019-11-14 2020-05-22 苏州枫桥光电科技有限公司 Microwave photon waveform generation device and method based on cyclic frequency shift
CN111786742A (en) * 2019-04-03 2020-10-16 西安电子科技大学 Method for generating microwave photon broadband vector signal

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215373A2 (en) * 1985-09-18 1987-03-25 Siemens Aktiengesellschaft Method and arrangement for estimating the phase deviation, as well as a phase control method, in an optical synchronous receiver
CN101521962A (en) * 2009-04-03 2009-09-02 湖南大学 System for generating single side band high-frequency optical fiber millimeter wave and reusing wavelength
US20110170873A1 (en) * 2010-01-11 2011-07-14 Xiang Liu Apparatus and Method For Generating Frequency-Locked Optical Comb Sources
US20180031946A1 (en) * 2015-02-12 2018-02-01 Michigan Technological University Electro-optic modulator, microwave photonic link including an electro-optic modulator, and method of communicating a signal with an electro-optic modulator
CN108432127A (en) * 2015-10-28 2018-08-21 国家科学研究中心 The photon of the arbitrary microwave signal of linear frequency modulation generates device
CN109286124A (en) * 2018-09-18 2019-01-29 上海交通大学 Laser linewidth compression method and system
CN110031832A (en) * 2019-03-15 2019-07-19 西北工业大学 A kind of microwave photon Doppler shift measurement system and its adjusting method
CN111786742A (en) * 2019-04-03 2020-10-16 西安电子科技大学 Method for generating microwave photon broadband vector signal
CN110212987A (en) * 2019-06-11 2019-09-06 南京航空航天大学 RF linear FM signal generation method and device based on frequency spectrum splicing
CN111193548A (en) * 2019-11-14 2020-05-22 苏州枫桥光电科技有限公司 Microwave photon waveform generation device and method based on cyclic frequency shift
CN110890901A (en) * 2019-12-03 2020-03-17 西北工业大学 Double-optical-comb multi-frequency-multiplication-factor frequency spectrum spreading frequency modulation signal generation system and implementation method

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
YANG CHEN: "《A Frequency-Tunable Binary Phase-Coded Microwave Signal Generator With a Tunable Microwave Signal Generator With a Tunable》", 《IEEE》 *
朱海玲等: "基于单通带微波光子滤波的多倍频微波信号产生", 《中国激光》 *
潘时龙: "《基于微波光子学的射频制导半实物仿真方法研究》", 《上海航天》 *

Also Published As

Publication number Publication date
CN113422649B (en) 2022-10-14

Similar Documents

Publication Publication Date Title
WO2020248737A1 (en) Radio-frequency linear frequency modulation signal generation method and apparatus based on frequency spectrum splicing
CN103297145B (en) Full light produces the device of 16 frequency-doubling millimeter waves
CN110890901B (en) Double-optical-comb multi-frequency-multiplication-factor frequency spectrum spreading frequency modulation signal generation system and implementation method
CN104022830A (en) Device and method for generating eight frequency multiplication millimeter waves by utilizing Mach-Zehnder modulator
CN112165361A (en) Optical channelization device and method with tunable frequency range
CN202695962U (en) Broadband continuous tunable optoelectronic oscillator based on stimulated Brillouin scattering effect
CN103078680A (en) Quadruplicated frequency millimeter wave generation method based on double-parallel MZ (Mach-zehnder) modulator
CN101800601A (en) Millimeter wave generator based on cascade Mach-Zehnder modulator
CN102227100A (en) ROF (radio over fiber) system based on dual-modulator parallel structure
CN104601240A (en) System and method for generating millimeter waves based on chalcogenide glass optical fiber four-wave mixing effect
CN110445542A (en) The 20 times frequency optical millimeter waves device and method based on nested Mach-Zehnder modulators
CN114879218A (en) Laser and radio frequency composite radar detection method and device
CN104683035A (en) Optical down-conversion method and system for high-frequency narrowband signal
CN113422649B (en) Microwave photon frequency doubling and shifting device and method
CN115037379B (en) Photon RF frequency doubling chip based on silicon-based micro-ring modulator and control method thereof
CN114401048B (en) Ultra-wideband microwave photon channelized receiving device and implementation method
CN115801129A (en) Channelized system based on high repetition frequency coherent optical frequency comb
CN114024616B (en) Multi-path variable frequency structure realized by polarization state independent modulation
CN113900315B (en) Low-stray high-order frequency multiplication system and method based on optical sideband injection locking
CN114389707A (en) Multi-band linear frequency modulation signal generation method with flexibly selectable frequency
JP2017111276A (en) Optical synthesizer
CN113037389B (en) High frequency multiplication millimeter wave signal generating device based on DPMZM and FWM effects
CN114696909B (en) Photon generating device and method for frequency-doubling microwave frequency-hopping FH signal
CN115267325B (en) Instantaneous multi-frequency measurement system based on frequency power mapping and channelization
CN218586575U (en) Microwave optical frequency comb generating device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant