CN205160533U - Microwave signal generator means warbles based on pulse of nonequilibrium time domain - Google Patents
Microwave signal generator means warbles based on pulse of nonequilibrium time domain Download PDFInfo
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- CN205160533U CN205160533U CN201520857818.5U CN201520857818U CN205160533U CN 205160533 U CN205160533 U CN 205160533U CN 201520857818 U CN201520857818 U CN 201520857818U CN 205160533 U CN205160533 U CN 205160533U
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- microwave signal
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Abstract
The utility model relates to a microwave signal generator means warbles based on pulse of nonequilibrium time domain. It has been solved the current microwave signal of warbling and has produced the degree of difficulty and wait technical problem greatly. Including pulse laser, first dispersion element, dual drive mach once morally modulator and second dispersion element, the output port of second dispersion element links to each other with photoelectric detector, and photoelectric detector is connected with waveform generator, and waveform generator's output port and dual drive mach once morally the radio frequency port of modulator link to each other, and photoelectric detector still is connected with the high -speed sampling circuit, and the high -speed sampling circuit links to each other with the display circuit. The advantage lies in: simple structure, can produce high frequency warble microwave signal, millimeter wave signal or even terahertz wave signal, overcome the difficult point that traditional electronic system produced the high frequency microwave signal, the microwave signal of warbling of production has the polarization dependence, can be with the microwave signal of warbling that produces different polarity.
Description
Technical field
The utility model belongs to Microwave photonics technical field, relates to based on pulse-shaping technique, especially relates to a kind of microwave signal generation device of warbling based on non-equilibrium time domain impulse.
Background technology
Microwave photonics proposes a kind of cross discipline merging microwave technology and photon technology at eighties of last century seventies, and it has taken into account the flexibility of microwave technology and the broadband of photon technology and low loss characteristic.Along with the quick update of the progress of science and technology, particularly information technology, microwave technology and photon technology mutually merge the inexorable trend that becomes scientific and technological progress and it achieves significant progress.Wherein, high-quality microwave signal generation technology of warbling has important application in radar system.Traditional method utilizes electronic technology to produce microwave signal of warbling, and due to the restriction of electronic bottleneck, directly producing the tunable microwave signal of warbling of high-frequency, wideband adjustable and chirp rate based on electronic system is a major challenge.
In order to solve prior art Problems existing, people have carried out long-term exploration, propose solution miscellaneous.Such as, Chinese patent literature discloses a kind of pulse laser time-domain apparatus for shaping [application number: 201310421883.9], comprise continuous single longitudinal mode Solid State Laser source successively, first order isolator, first fast electric optical modulator, second fast electric optical modulator, second level isolator, regenerative amplifier and adjustable electric optical modulator, the output of precision multi delayer and the first described fast electric optical modulator, second fast electric optical modulator, regenerative amplifier is connected with the control end of adjustable electric optical modulator, the first described fast electric optical modulator, second fast electric optical modulator, regenerative amplifier and adjustable electric optical modulator described precision multi delayer export the triggering of Transistor-Transistor Logic level triggering signal is provided under, by precise operation sequential working.
Such scheme to some extent solves prior art and to warble the problem of microwave signal wideband adjustable, but the program still also exists the problem that electronic system produces the difficulty of high-frequency microwave signal.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provide a kind of structure simple, high frequency can be produced to warble the microwave signal generation device of warbling based on non-equilibrium time domain impulse of microwave signal.
For achieving the above object, the utility model have employed following technical proposal: this is based on the microwave signal generation device of warbling of non-equilibrium time domain impulse, comprise the pulse laser for providing pulsed optical signals, it is characterized in that, the output port of described pulse laser is connected with the input port of the first dispersion element, the output of the first described dispersion element is connected with the input port of Dual Drive Mach zehnder modulators, and the output port of described Dual Drive Mach zehnder modulators is connected with the input port of the second dispersion element, described Dual Drive Mach zehnder modulators has prevention at radio-frequency port, the described output port of the second dispersion element is connected with the input port of photodetector, the output port of described photodetector is connected with the input port of waveform generator, and the output port of described waveform generator is connected with the prevention at radio-frequency port of Dual Drive Mach zehnder modulators, and the output port of described photodetector is also connected with the electrical input mouth of the high speed sampling circuit for the microwave signal of warbling produced of sampling, and the electric output port of described high speed sampling circuit is connected with the power input port that can show the display circuit producing microwave signal of warbling.
Warble in microwave signal generation device above-mentioned based on non-equilibrium time domain impulse, input port and the output port of described Dual Drive Mach zehnder modulators are connected to Polarization Controller.
Warble in microwave signal generation device above-mentioned based on non-equilibrium time domain impulse, described pulse laser is semiconductor laser or fiber laser.
Warble in microwave signal generation device above-mentioned based on non-equilibrium time domain impulse, the first described dispersion element and the second dispersion element are any one or multiple combination of monomode fiber, dispersion compensating fiber, fiber grating and Tunable Dispersion Compensator.
Warble in microwave signal generation device above-mentioned based on non-equilibrium time domain impulse, described Dual Drive Mach zehnder modulators is any one or multiple combination in lithium niobate modulator, semi-conducting polymer modulator and organic polymer electro-optic modulator.
Warble in microwave signal generation device above-mentioned based on non-equilibrium time domain impulse, described photodetector is photodiode or photomultiplier, and described photodetector is made up of indium phosphide or is made up of silica-base material.
Warble in microwave signal generation device above-mentioned based on non-equilibrium time domain impulse, described waveform generator is vector network analyzer or microwave signal source; The direct current biasing port of described pulse laser and the direct current biasing port of photodetector are all connected with can be provided bias voltage to pulse laser and can provide the first power-supply circuit of driving voltage to photodetector; The direct current biasing port of described Dual Drive Mach zehnder modulators is connected with the static phase shift for changing two-way phase-modulator and changes the second source supply circuit of the bias point of intensity modulator.
Compared with prior art, this is based on advantage of the microwave signal generation device of warbling of non-equilibrium time domain impulse: should based on non-equilibrium Temporal pulse shaping technology produce system configuration of the asymmetric microwave signal of warbling of time domain simple, high frequency can be produced to warble microwave signal, millimeter-wave signal or even terahertz wave signal, this microwave signal of warbling produces system and overcomes the difficult point that conventional electronic system produces high-frequency microwave signal, simultaneously, the microwave signal of warbling produced has polarization correlated, namely can produce the microwave signal of warbling of opposed polarity.
Accompanying drawing explanation
The structural representation that Fig. 1 provides for the utility model.
In figure, pulse laser 1, prevention at radio-frequency port 31, Polarization Controller 32, first dispersion element 2, Dual Drive Mach zehnder modulators 3, second dispersion element 4, photodetector 5, waveform generator 6, first power-supply circuit 7, second source supply circuit 8, high speed sampling circuit 9, display circuit 10.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1, this is based on the microwave signal generation device of warbling of non-equilibrium time domain impulse, comprise the pulse laser 1 for providing pulsed optical signals, here pulse laser 1 is semiconductor laser or fiber laser, the output port of pulse laser 1 is connected with the input port of the first dispersion element 2, the output of the first dispersion element 2 is connected with the input port of Dual Drive Mach zehnder modulators 3, and the output port of Dual Drive Mach zehnder modulators 3 is connected with the input port of the second dispersion element 4, Dual Drive Mach zehnder modulators 3 has prevention at radio-frequency port 31, and Dual Drive Mach zehnder modulators 3 is lithium niobate modulator, any one or multiple combination in semi-conducting polymer modulator and organic polymer electro-optic modulator, the output port of the second dispersion element 4 is connected with the input port of photodetector 5, photodetector 5 can be photodiode or photomultiplier, and photodetector 5 is made up of indium phosphide or is made up of silica-base material, the output port of photodetector 5 is connected with the input port of waveform generator 6, waveform generator 6 can be vector network analyzer or microwave signal source, and the output port of waveform generator 6 is connected with the prevention at radio-frequency port 31 of Dual Drive Mach zehnder modulators 3, and the output port of photodetector 5 is also connected with the electrical input mouth of the high speed sampling circuit 9 for the microwave signal of warbling produced of sampling, and the electric output port of high speed sampling circuit 9 is connected with the power input port that can show the display circuit 10 producing microwave signal of warbling.
Particularly, input port and the output port of the Dual Drive Mach zehnder modulators 3 in the present embodiment are connected to Polarization Controller 32, the polarization of the Polarization Controller 32 energy minimization Dual Drive Mach zehnder modulators 3 of the input of Dual Drive Mach zehnder modulators 3 is correlated with Insertion Loss, and the output of Dual Drive Mach zehnder modulators 3 connects Polarization Controller 32 and can test the microwave signal of warbling that in different polarization states, phase-modulation produces.Preferably, here the first dispersion element 2 and the second dispersion element 4 are any one or multiple combination of monomode fiber, dispersion compensating fiber, fiber grating and Tunable Dispersion Compensator, wherein, the direct current biasing port of pulse laser 1 and the direct current biasing port of photodetector 5 are all connected with can provide bias voltage to pulse laser 1 and can provide the first power-supply circuit 7 of driving voltage to photodetector 5; The direct current biasing port of Dual Drive Mach zehnder modulators 3 is connected with the static phase shift for changing two-way phase-modulator and changes the second source supply circuit 8 of the bias point of intensity modulator.
Based on the microwave signal generating method of warbling of non-equilibrium time domain impulse, comprise the steps: the shaping first of A, pulsed optical signals: produce pulsed optical signals by pulse laser 1, then carry out broadening pulsewidth by the first dispersion element 2 paired pulses light signal, 2nd order chromatic dispersion is carried out real time fourier processing for the first time and is then input to the input port of Dual Drive Mach zehnder modulators 3 and carries out spectrum shaping by Dual Drive Mach zehnder modulators 3 to the pulsed optical signals that the first dispersion element 2 exports; B, pulsed optical signals secondary reshaping: the input port of Dual Drive Mach zehnder modulators 3 output port and the second dispersion element 4 also compensates a part of 2nd order chromatic dispersion of the first dispersion element 2 by the second dispersion element 4, second time real time fourier processing is carried out in residue 2nd order chromatic dispersion; C, pulsed optical signals export: the pulsed optical signals after secondary reshaping is delivered to the input port of photodetector 5 by the second dispersion element 4, the input port that the output port of photodetector 5 is connected with waveform generator 6 is connected, the output port of waveform generator 6 is connected with the prevention at radio-frequency port 31 of Dual Drive Mach zehnder modulators 3, then to be sampled the microwave signal of warbling produced by high speed sampling circuit 9, and show generation by display circuit 10 and to warble microwave signal.
The input of the Dual Drive Mach zehnder modulators 3 in steps A or B or C is connected Polarization Controller 32 respectively with output, the polarization of the Polarization Controller 32 energy minimization Dual Drive Mach zehnder modulators 3 of the input of Dual Drive Mach zehnder modulators 3 is correlated with Insertion Loss, and the output of Dual Drive Mach zehnder modulators 3 connects Polarization Controller 32 and can test the microwave signal of warbling that in different polarization states, phase-modulation produces.
Further, pulse laser 1 is here semiconductor laser or fiber laser; First dispersion element 2 and the second dispersion element 4 are any one or multiple combination of monomode fiber, dispersion compensating fiber, fiber grating and Tunable Dispersion Compensator; Dual Drive Mach zehnder modulators 3 is any one or multiple combination in lithium niobate modulator, semi-conducting polymer modulator and organic polymer electro-optic modulator; Photodetector 5 is photodiode or photomultiplier, and photodetector 5 is made up of indium phosphide or is made up of silica-base material; Waveform generator 6 is vector network analyzer or microwave signal source; The direct current biasing port of pulse laser 1 and the direct current biasing port of photodetector 5 are all connected with can be provided bias voltage to pulse laser 1 and can provide the first power-supply circuit 7 of driving voltage to photodetector 5; The direct current biasing port of Dual Drive Mach zehnder modulators 3 is connected with the static phase shift for changing two-way phase-modulator and changes the second source supply circuit 8 of the bias point of intensity modulator.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as pulse laser 1, prevention at radio-frequency port 31, Polarization Controller 32, first dispersion element 2, Dual Drive Mach zehnder modulators 3, second dispersion element 4, photodetector 5, waveform generator 6, first power-supply circuit 7, second source supply circuit 8, high speed sampling circuit 9, display circuit 10 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (7)
1. the microwave signal generation device of warbling based on non-equilibrium time domain impulse, comprise the pulse laser (1) for providing pulsed optical signals, it is characterized in that, the output port of described pulse laser (1) is connected with and can carries out broadening pulsewidth and 2nd order chromatic dispersion carried out to the input port of first dispersion element (2) of first time real time fourier processing by the pulsed optical signals that sends of paired pulses laser (1), the output of described the first dispersion element (2) is connected with the input port that the light signal that can export the first dispersion element (2) carries out the Dual Drive Mach zehnder modulators (3) composing shaping, and the output port of described Dual Drive Mach zehnder modulators (3) is connected with a part of 2nd order chromatic dispersion that can compensate the first dispersion element (2) and residue 2nd order chromatic dispersion is carried out to the input port of second dispersion element (4) of second time real time fourier processing, described Dual Drive Mach zehnder modulators (3) has prevention at radio-frequency port (31), the output port of described the second dispersion element (4) is connected with the input port of photodetector (5), the output port of described photodetector (5) is connected with the input port of waveform generator (6), and the output port of described waveform generator (6) is connected with the prevention at radio-frequency port (31) of Dual Drive Mach zehnder modulators (3), and the output port of described photodetector (5) is also connected with the electrical input mouth of the high speed sampling circuit (9) for the microwave signal of warbling produced of sampling, and the electric output port of described high speed sampling circuit (9) is connected with the power input port that can show the display circuit (10) producing microwave signal of warbling.
2. the microwave signal generation device of warbling based on non-equilibrium time domain impulse according to claim 1, it is characterized in that, input port and the output port of described Dual Drive Mach zehnder modulators (3) are connected to Polarization Controller (32).
3. the microwave signal generation device of warbling based on non-equilibrium time domain impulse according to claim 1 and 2, is characterized in that, described pulse laser (1) is semiconductor laser or fiber laser.
4. the microwave signal generation device of warbling based on non-equilibrium time domain impulse according to claim 3, it is characterized in that, described the first dispersion element (2) and the second dispersion element (4) they are monomode fiber, any one or multiple combination of dispersion compensating fiber, fiber grating and Tunable Dispersion Compensator.
5. the microwave signal generation device of warbling based on non-equilibrium time domain impulse according to claim 3, it is characterized in that, described Dual Drive Mach zehnder modulators (3) is lithium niobate modulator, any one or multiple combination in semi-conducting polymer modulator and organic polymer electro-optic modulator.
6. the microwave signal generation device of warbling based on non-equilibrium time domain impulse according to claim 5, it is characterized in that, described photodetector (5) is photodiode or photomultiplier, and described photodetector (5) is made up of indium phosphide or is made up of silica-base material.
7. the microwave signal generation device of warbling based on non-equilibrium time domain impulse according to claim 3, is characterized in that, described waveform generator (6) is vector network analyzer or microwave signal source; The direct current biasing port of described pulse laser (1) and the direct current biasing port of photodetector (5) are all connected with can be provided bias voltage to pulse laser (1) and can provide first power-supply circuit (7) of driving voltage to photodetector (5); The direct current biasing port of described Dual Drive Mach zehnder modulators (3) is connected with the static phase shift for changing two-way phase-modulator and changes the second source supply circuit (8) of the bias point of intensity modulator.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105323010A (en) * | 2015-10-30 | 2016-02-10 | 金华禄科光电技术研究所有限公司 | Unbalanced time domain pulse based chirped microwave signal generation device and generation method |
| CN113419229A (en) * | 2021-06-04 | 2021-09-21 | 广东工业大学 | Phase-adjustable microwave photon frequency conversion system and implementation method thereof |
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2015
- 2015-10-30 CN CN201520857818.5U patent/CN205160533U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105323010A (en) * | 2015-10-30 | 2016-02-10 | 金华禄科光电技术研究所有限公司 | Unbalanced time domain pulse based chirped microwave signal generation device and generation method |
| CN113419229A (en) * | 2021-06-04 | 2021-09-21 | 广东工业大学 | Phase-adjustable microwave photon frequency conversion system and implementation method thereof |
| CN113419229B (en) * | 2021-06-04 | 2023-07-25 | 广东工业大学 | Phase-adjustable microwave photon frequency conversion system and implementation method thereof |
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Granted publication date: 20160413 Termination date: 20161030 |