CN104103997A - Device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser - Google Patents
Device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser Download PDFInfo
- Publication number
- CN104103997A CN104103997A CN201410351495.2A CN201410351495A CN104103997A CN 104103997 A CN104103997 A CN 104103997A CN 201410351495 A CN201410351495 A CN 201410351495A CN 104103997 A CN104103997 A CN 104103997A
- Authority
- CN
- China
- Prior art keywords
- laser
- microwave
- mode
- photodiode
- frequency pulse
- 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.)
- Pending
Links
Landscapes
- Semiconductor Lasers (AREA)
- Lasers (AREA)
Abstract
Disclosed is a device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser. The device comprises a mode-locking high-repetition-frequency pulse laser device, a photodiode, a narrow-band filter, a low-noise high-gain amplifier and a saturation amplifier. The output laser of the mode-locking high-repetition-frequency pulse laser device is emitted to the photodiode, and the photodiode, the narrow-band filter, the low-noise high-gain amplifier and the saturation amplifier are sequentially connected through coaxial microwave wires. The device for generating microwave signals through the high-repetition-frequency pulse of the mode-locked laser is a novel reliable photo-generation microwave source technology, solves the problems of time synchronization of laser and microwaves and remote stable transmission of the microwaves and is simple in structure and high in microwave stability and practicality.
Description
Technical field
The invention belongs to optoelectronics field, is to utilize the ultrashort laser pulse of laser output directly to produce the microwave signal source of low phase noise.It is a kind of method of direct generation microwave signal still not, and can solve time synchronization problem and the microwave far-distance transmission problem of laser and microwave in optoelectronic applications field.
Background technology
In a lot of application, need laser pulse and microwave signal to have good time synchronizing relation.Such as, by the photocathode microwave electron source of Laser Driven; Pump probe and free-electron laser etc.Laser is synchronizeed with microwave, is to realize by PHASE-LOCKED LOOP PLL TECHNIQUE.Said method is the time jitter between the latter two synchronously, is not only decided by the sensitivity of phase-locked loop, also depends on the stability of laser and microwave simultaneously.At present, the two time jitter after synchronous still can not meet requirement of some most advanced and sophisticated application.
Traditional high-frequency microwave signal source is low frequency microwave signal that crystal oscillator source is produced by complicated electronic circuit step by step frequency multiplication, amplify and obtain---the raw microwave technology of electricity.The long-distance transmissions of microwave signal, is generally to transmit by coaxial cable, or transmits in air.Loss is large, environmental impact is large, is difficult to control and feedback.Therefore, the raw microwave technology of electricity, runs into more and more technical difficulties that are difficult to overcome.
Along with the development and progress of laser technology, someone has proposed photoproduction microwave technology in recent years.According to concrete ins and outs, photoproduction microwave technology has three kinds to realize approach: the two bundle laser that the first produces by two separate single frequency lasers carry out beat frequency, and the frequency of microwave signal is the poor of this two bundles laser frequency.The phase place of two LASER Light Source must lock, and needs injection locking technique or PHASE-LOCKED LOOP PLL TECHNIQUE, also needs a high stable microwave derived reference signal; The second photoproduction microwave technology, produces sideband by beam of laser by external modulation, utilizes the beat effect of sideband to obtain high-frequency microwave, and this technology does not need phase-locked loop, but also needs a high stable microwave derived reference signal; The third photoproduction microwave technology, by using a resonance-cavity laser output single-longitudinal-mode dual-wavelength, directly carries out beat frequency to this dual wavelength output, can obtain photoproduction microwave signal.
Above-mentioned three kinds of photoproduction microwave methods are in fact all to utilize the laser beat frequency of two wavelength, phase difference locking to obtain.Present patent application has proposed a kind of different photoproduction microwave method, utilizes the direct filtering of high order harmonic component, the amplification of locked mode, high Repetition Frequency Laser pulse, produces microwave signal.Method is more simple, stability and practicality stronger.Because microwave is to connect conversion gained by laser straight, microwave and laser have natural time synchronizing relation, can thoroughly solve microwave in most advanced and sophisticated application and the time jitter problem of laser.The long-distance transmissions of microwave, can be converted to the long-distance transmissions of laser, in remote microwave site of deployment, utilizes the application's device, and laser is converted to microwave, has solved the long-distance transmissions problem of microwave.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, proposed a kind of device that utilizes the high repetitive frequency pulsed generation microwave signal of mode-locked laser, utilize locked mode, high recurrent frequency pulse laser, leach high order harmonic component, amplify generation microwave.
Solution of the present invention is as follows:
Utilize a device for the high repetitive frequency pulsed generation microwave signal of mode-locked laser, its feature is, comprises locked mode high recurrent frequency pulse laser device, photodiode, narrow band filter, low noise high-gain amplifier and regulex;
Photodiode described in the output light directive of described locked mode high recurrent frequency pulse laser device, described photodiode, narrow band filter, low noise high-gain amplifier and regulex are connected successively through coaxial microwave line.
Between described locked mode high recurrent frequency pulse laser device and photodiode, be also provided with spectroscope.
The course of work of the present invention is as follows:
Locked mode high repetition frequency laser pulse changes the signal of telecommunication into by fast photodiode, narrow band filter leaches certain the one-level high order harmonic component needing from the signal of telecommunication, by low noise high-gain amplifier and regulex two-stage, amplify, obtain lowly making an uproar mutually, the high-frequency microwave signal of amplitude stabilization.
The principle of the invention is as follows:
The ultrashort laser pulse repetition rate of locked mode high recurrent frequency pulse laser device output is F
1, irradiate fast photodiode, making light signal become frequency is F
1the signal of telecommunication.Mode-locked laser pulse is very short, can reach femtosecond magnitude.The corresponding time of fast photodiode is short, and in time-domain, by light signal, changing the signal of telecommunication obtaining is also that frequency is F
1supershort electric pulse signal.In frequency domain, frequency is F
1supershort electric pulse signal include multistage high order harmonic component n * F
1(n=1,2,3 ...).In theory, n can be infinitely great.But, considering the developed width of the signal of telecommunication and the amplitude of high order harmonic component, n can value arrive nearly 100.The centre frequency of selected narrow band filter is to the n needing
0f
1(n
0<100), narrow band filter filters out other harmonic componentss, only by the n needing
0f
1composition.N
0f
1harmonic components, after the power amplification of low noise high-gain amplifier, then passes through the further saturation amplification of regulex, improves the range stability of microwave.
Compared with prior art, beneficial effect of the present invention is as follows:
Compare with traditional raw microwave technology of electricity, the microwave of generation and laser have natural time synchronizing relation, can solve the time jitter of microwave and laser and the remote stable transfer problem of microwave; Compare with other photoproduction microwave technologies, structure is simpler, microwave good stability, practical.
Accompanying drawing explanation
Fig. 1 is the device that the present invention utilizes the high repetitive frequency pulsed generation microwave signal of mode-locked laser.
Fig. 2 is the signal of telecommunication (experimental result) that the laser pulse of oscilloscope collection obtains after photodiode.
Fig. 3 is that laser is synchronizeed schematic diagram with microwave.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the invention will be further described, but should not limit the scope of the invention with this.
Please first consult Fig. 1, Fig. 1 is the device that the present invention utilizes the high repetitive frequency pulsed generation microwave signal of mode-locked laser, as shown in the figure, a kind of device that utilizes the high repetitive frequency pulsed generation microwave signal of mode-locked laser, comprise locked mode high recurrent frequency pulse laser device 1, photodiode 2, narrow band filter 3, low noise high-gain amplifier 4 and regulex 5; Photodiode 2 described in the output light directive of described locked mode high recurrent frequency pulse laser device 1, described photodiode 2, narrow band filter 3, low noise high-gain amplifier 4 and regulex 5 are connected successively through coaxial microwave line.
Between described locked mode high recurrent frequency pulse laser device 1 and photodiode 2, be also provided with spectroscope 6, as shown in Figure 3, microwave source is from laser oscillator, and laser and microwave have natural synchronized relation, and the two no longer includes time jitter problem.
In the present embodiment, the pulse repetition frequency of the mode-locked laser oscillator of the relevant company of the commercial U.S. is 81.6MHz, pulse duration 37 femtoseconds; Photodiode through 10G becomes the signal of telecommunication (seeing Fig. 2), and the narrow band filter that the signal of telecommunication is 2856MHz by centre frequency detects 35 subharmonic in the signal of telecommunication; First through low noise, high-gain amplifier, harmonic wave is amplified; Through regulex, can, by power amplification to 10dbm left and right, reach the power level of general microwave source again.
Claims (2)
1. a device that utilizes the high repetitive frequency pulsed generation microwave signal of mode-locked laser, it is characterized in that, comprise locked mode high recurrent frequency pulse laser device (1), photodiode (2), narrow band filter (3), low noise high-gain amplifier (4) and regulex (5);
Photodiode (2) described in the output light directive of described locked mode high recurrent frequency pulse laser device (1), described photodiode (2), narrow band filter (3), low noise high-gain amplifier (4) and regulex (5) are connected successively through coaxial microwave line.
2. the device that utilizes the high repetitive frequency pulsed generation microwave signal of mode-locked laser according to claim 1, it is characterized in that, between described locked mode high recurrent frequency pulse laser device (1) and photodiode (2), be also provided with spectroscope (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410351495.2A CN104103997A (en) | 2014-07-23 | 2014-07-23 | Device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410351495.2A CN104103997A (en) | 2014-07-23 | 2014-07-23 | Device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104103997A true CN104103997A (en) | 2014-10-15 |
Family
ID=51671918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410351495.2A Pending CN104103997A (en) | 2014-07-23 | 2014-07-23 | Device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104103997A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018157799A1 (en) * | 2017-03-01 | 2018-09-07 | 中兴通讯股份有限公司 | Optical pulse signal generation method and apparatus, and a computer storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800391A (en) * | 2010-02-01 | 2010-08-11 | 湖南大学 | Tera-Hertz wave generation device and method based on double-side-band modulation |
| CN102098108A (en) * | 2011-01-31 | 2011-06-15 | 中国科学院半导体研究所 | Photo-induced microwave signal source and method |
| US20120133931A1 (en) * | 2010-11-29 | 2012-05-31 | Imra America, Inc. | Frequency comb source with large comb spacing |
-
2014
- 2014-07-23 CN CN201410351495.2A patent/CN104103997A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800391A (en) * | 2010-02-01 | 2010-08-11 | 湖南大学 | Tera-Hertz wave generation device and method based on double-side-band modulation |
| US20120133931A1 (en) * | 2010-11-29 | 2012-05-31 | Imra America, Inc. | Frequency comb source with large comb spacing |
| CN102098108A (en) * | 2011-01-31 | 2011-06-15 | 中国科学院半导体研究所 | Photo-induced microwave signal source and method |
Non-Patent Citations (2)
| Title |
|---|
| JUNWON KIM ET AL.: "Microwave signal extraction from femtosecond mode-locked lasers with attosecond relative timing drift", 《OPTICS LETTERS》 * |
| 刘圣广等: "光阴极电子枪微波与激光同步系统研究", 《高能物理与核物理》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018157799A1 (en) * | 2017-03-01 | 2018-09-07 | 中兴通讯股份有限公司 | Optical pulse signal generation method and apparatus, and a computer storage medium |
| CN108539570A (en) * | 2017-03-01 | 2018-09-14 | 中兴通讯股份有限公司 | A kind of generation method and device of light pulse signal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Jung et al. | Ultralow phase noise microwave generation from mode-locked Er-fiber lasers with subfemtosecond integrated timing jitter | |
| CN100392925C (en) | Multi-pulse superposition amplifier and femtosecond laser parameter chirped pulse amplification laser | |
| CN110265855A (en) | High-energy pulse cluster laser as microwave system light guide device signal source | |
| CN108508676B (en) | Interval adjustable optical frequency comb based on phase modulation and optical fiber cavity soliton and generation method | |
| CN103022873B (en) | Ultrashort pulse generator based on double pump parametric process | |
| CN102882472B (en) | Photon type frequency down-conversion device and method | |
| CN113589236B (en) | Double-chirp waveform signal generator based on photoelectric oscillation loop structure | |
| CN104752940A (en) | Photoelectric oscillator | |
| CN108963736A (en) | A kind of high-peak power picosecond and nanosecond short-wavelength light fibre laser | |
| CN103872553A (en) | Method for acquiring broadband radio frequency signal source with ultralow phase noise | |
| CN103996960A (en) | Oscillating system | |
| CN103500913B (en) | Pulse optical fiber and laser pulse generation method | |
| CN104103997A (en) | Device for generating microwave signals through high-repetition-frequency pulse of mode-locked laser | |
| Lasri et al. | A self-starting hybrid optoelectronic oscillator generating ultra low jitter 10-GHz optical pulses and low phase noise electrical signals | |
| CN106169690B (en) | A kind of method that Gao Zhongying mode locked fiber laser generates high repetition pulse | |
| CN109932851B (en) | Generating device based on arbitrary frequency multiplication signal of coupling type photoelectric oscillation optical frequency comb | |
| CN116300246B (en) | Cascade all-optical oscillator based on optical injection locking and oscillation method | |
| CN111478176A (en) | Waveform generating device and method based on semiconductor laser unit monocycle oscillation | |
| CN103780255B (en) | Synchronous scanning circuit system based on PLL and DDS | |
| JP3760239B2 (en) | Optical signal generator with stabilized frequency difference between two continuous wave laser beams | |
| CN109309334B (en) | Frequency modulation-based optoelectronic oscillator and control method | |
| CN103701028A (en) | High-repetition frequency high-strength terahertz source based on double-tone coherent control plasma | |
| CN102664342A (en) | Optical parameter chirped pulse amplifier | |
| CN103368533B (en) | The dynamically synchronized control circuit of satellite sailboard power array simulator | |
| CN206023744U (en) | X frequency range Low phase noise phase lock dielectric oscillators |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141015 |
|
| RJ01 | Rejection of invention patent application after publication |