CN103941515A - Optical frequency comb generation device and method with comb tooth frequency interval capable of being scanned - Google Patents
Optical frequency comb generation device and method with comb tooth frequency interval capable of being scanned Download PDFInfo
- Publication number
- CN103941515A CN103941515A CN201410141103.XA CN201410141103A CN103941515A CN 103941515 A CN103941515 A CN 103941515A CN 201410141103 A CN201410141103 A CN 201410141103A CN 103941515 A CN103941515 A CN 103941515A
- Authority
- CN
- China
- Prior art keywords
- frequency
- photoelectricity
- broach
- modulator
- intensity modulator
- 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
Links
Abstract
The invention provides an optical frequency comb generation device with the comb tooth frequency interval capable of being scanned. A signal generator form two output ends through a microwave power distributor, wherein the first output end is connected with a photoelectric phase modulator after passing through a first broadband microwave power amplifier, the second output end is connected with a photoelectric intensity modulator after sequentially passing through an adjustable microwave delay line and a second broadband microwave power amplifier, a continuous wave laser carries out output sequentially through the photoelectric phase modulator and the photoelectric intensity modulator , the photoelectric phase modulator and the photoelectric intensity modulator are cascaded, and the photoelectric intensity modulator has direct-current bias. The invention further provides an optical frequency comb generation method. According to the optical frequency comb generation device and method, broadband continuous frequency scanning and accurate arbitrary adjustment of the comb tooth frequency interval are achieved, a generated optical frequency comb is stable in phase, frequency and central wavelength, and tunable, the device is simple in scheme, and low in cost, and the optical frequency comb generation device and method meet the requirement for application in the fields such as the optical measurement field, the laser radar field, the laser spectroscopy field, the optical fiber sensing field, the optical communication field and the microwave photonics field.
Description
Technical field
The present invention relates to the production method of the optical frequency com that a kind of broach spacing frequency of optical communication and field of optical measuring technologies can the continuous frequency sweep of broadband phase place, specifically, a kind of cascade photoelectricity phase-modulator and photoelectricity intensity modulator of adopting, realize broach spacing frequency can broadband the broach frequency interval of phase place cline frequency scanning can frequency sweep frequency comb generation device and production method, in whole frequency sweep process, the broach flatness of frequency comb remains unchanged.
Background technology
The optical frequency com that frequency interval is precise and stable, broach is relevant is widely used in the fields such as laser measurement, optical imagery, laser radar, laser spectroscopy, Fibre Optical Sensor, optical communication and Microwave photonics.The optical frequency com that broach power is smooth, spectral range is wide, phase coherence and broach frequency interval can be controlled arbitrarily continuously, produces at microwave photon filter, wideband adjustable microwave/millimeter wave/terahertz signal of AWG (Arbitrary Waveform Generator), broadband Frequency Adjustable, all has urgent demand in the generation of synchronous and phase-locked, optical measurement between multiple optical frequency com and ultra broadband continuous spectrum optical frequency com.
At present, main broach spacing frequency tunable optical frequency comb producing method has three kinds of the cascade photoelectricity phase-modulations of optical fiber loop, mode-locked laser and radio frequency signals drive based on image intensifer.
The first, based on the optical fiber loop of image intensifer, electrooptic modulator is positioned over to loop inside, and the mode being offset by cycle frequency produces many broach, and the compensation loop loss and control and comb bandwidth frequently respectively of fiber amplifier by optical fiber loop inside and optical band pass filter.Its broach interval is relevant to the oscillation frequency of modulator driving signal frequency and optical fiber loop, the adjusting of carrying out image intensifer and optical filter that need to mate while regulating broach frequency interval, therefore can not carry out to broach spacing frequency the continuous adjusting of phase coherence; And carry out circulation amplify by the image intensifer in optical fiber loop, the frequency broach noise figure repeatedly producing after accumulation progressively increases.
The second, adopts nonlinear medium to carry out spectrum widening to mode-locked laser, produces the broadband super continuum light spectrum of phase coherence, and its broach frequency interval can be undertaken tuning by the vibrate length in chamber of adjusting.Through the retrieval of prior art document is found, the existing implementation that mode-locked laser broach spacing frequency (being repetition frequency) is carried out to continuous frequency sweep adjusting mainly contains two kinds.The people such as Brian R.Washburn are published in the scientific paper " Fiber-laser-based frequency comb with a tunable repetition rate " (the repetition frequency tunable frequency comb based on fiber laser) in scholarly journal " Optics Express " (" optics news flash "), proposition utilizes the chamber inner fiber delay line of Electric Machine Control, thereby changes the long object that reaches frequency tuning in chamber of mode-locked laser.The range of adjustment of its broach frequency interval is 49.34-50.12MHz, and laser instrument can keep locked mode in whole tuning process, is phase coherence.The people such as Holger Hundermark are published in the scientific paper " Stable sub-85fs passively mode-locked Erbiumfiber oscillator with tunable repetition rate " (the tunable sub-85 femtosecond passive mode-locking Er-doped fiber oscillators of repetition frequency) in scholarly journal " Optics Express " (" optics news flash "), position by changing the adjustable lens in mode-locked laser chamber is proposed, thereby it is long to change chamber, reach the object of frequency tuning.It is 1.1MHz to the range of adjustment of frequency interval, in whole tuning process, can keep coherence stable between broach.Such scheme all can carry out the broach frequency interval of frequency comb continuous relevant tuning, but because mode-locked laser need to carry out complicated stable control to chamber, limit the long tunable range in chamber, thereby limit the tuning range of broach frequency interval in several MHz ranks, and needed complicated cavity stability controlling mechanism.
The third, the cascade photoelectricity phase-modulation of radio frequency signals drive can produce phase coherence, optical frequency com that broach power is smooth, the broach quantity of its generation less slightly with first two mode, but it is simple in structure, stability is high, and broach frequency interval can be directly by the radiofrequency signal fine adjustment driving.But for the frequency broach that makes to produce keeps smooth, the driving signal that need to control cascade photoelectricity phase place and intensity modulator makes its phase matching, and under different driving frequency, need to recalibrate the phase relation that drives signal.Therefore can not in keeping light comb flatness, realize the continuous frequency sweep in broadband of broach spacing frequency.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, frequency comb generation device and production method that a kind of broach frequency interval based on radio frequency signals drive cascade photoelectricity phase-modulator and photoelectricity intensity modulator can frequency sweep have been proposed, the optical frequency com phase coherence producing by generation device, broach frequency interval can keep phase place frequency sweep continuously in broadband range, the optical frequency comb phase place of its generation, frequency stabilization, implementation is simpler, can meet optical measurement, optical imagery, laser radar, laser spectroscopy, Fibre Optical Sensor, the application demand in the field such as optical communication and Microwave photonics.
The present invention is achieved by the following technical solutions.
According to an aspect of the present invention, the frequency comb generation device that a kind of broach frequency interval can frequency sweep is provided, comprise signal generator, continuous wave laser, photoelectricity phase-modulator, photoelectricity intensity modulator, microwave power divider, the first wide-band microwave power amplifier, the second wide-band microwave power amplifier and adjustable microwave lag line, wherein, described signal generator forms two-way output terminal after microwave power divider, wherein, first via output terminal is connected with photoelectricity phase-modulator after the first wide-band microwave power amplifier, the second road output terminal is connected with photoelectricity intensity modulator after the second wide-band microwave power amplifier through adjustable microwave lag line successively, described continuous wave laser is exported through photoelectricity phase-modulator and the photoelectricity intensity modulator of cascade successively, described photoelectricity intensity modulator is provided with direct current biasing.
Preferably, also comprise time delay correlator, optoelectronic receiver and sampling oscilloscope, the output terminal of described photoelectricity intensity modulator is connected with time delay correlator, and described time delay correlator is connected with optoelectronic receiver, and described optoelectronic receiver is connected with sampling oscilloscope.
Preferably, described signal generator adopts microwave signal generator or high-speed pulse signal generator.
According to another aspect of the present invention, provide the frequency comb production method that a kind of broach frequency interval can frequency sweep, comprised the following steps:
Step 1, signal generator produces wideband frequency tunable signal and is divided into two-way after by microwave power divider, and the first via is amplified rear drive photoelectricity phase-modulator through the first wide-band microwave power amplifier; , after adjustable microwave lag line, then amplify through the second wide-band microwave power amplifier on the second tunnel, drives photoelectricity intensity modulator;
Step 2, the optical carrier of continuous wave laser output, through photoelectricity phase-modulator and the photoelectricity intensity modulator of cascade, regulates the bias point of photoelectricity intensity modulator to make output form smooth frequency comb;
Step 3, regulates variable delay line, and making photoelectricity postpone difference is zero, realizes broadband phase matching; Now, the signal of signal generator output broadband frequency sweep, correspondingly, the broach spacing frequency of the frequency comb of photoelectricity intensity modulator output also thereupon frequency sweep change, produce the frequency comb that broach frequency interval can broadband frequency sweep.
Preferably, in described step 2, the frequency of the signal that the broach spacing frequency of frequency comb produces with signal generator is identical.
Preferably, also comprise step 4, described step 4 is specially:
The broach frequency interval that step 3 produces can broadband frequency sweep frequency comb, after time delay correlator and optoelectronic receiver, show by sampling oscilloscope.
Broach frequency interval provided by the invention can frequency sweep frequency comb generation device and production method, the broach flatness of its output frequency comb does not change along with the frequency change of signal generator output signal, not along with the broach spacing frequency of frequency comb changes and changes, in the frequency sweep process of whole broadband, can keep stable spectrum flatness; Make light signal time delay and microwave-driven signal lag exact matching between cascade photoelectricity phase-modulator and photoelectricity intensity modulated.Adopt photoelectricity phase-modulator and the photoelectricity intensity modulator of cascade, and the time delay between light signal and microwave-driven signal between two modulators of fine adjustment, realize the broadband phase matching of photoelectricity delay inequality, by the broadband phase place cline frequency scanning of microwave-driven signal, realize the broach spacing frequency method of broadband phase place cline frequency scan light frequency comb thereupon, in whole frequency sweep process, optical frequency comb broach flatness remains unchanged.
Compared with prior art, the present invention has following beneficial effect:
1, broken through the restriction of traditional frequency comb producing method, due to the frequency stabilization of microwave signal generator, accurately, regulating and controlling arbitrarily, realized the continuous frequency sweep in broadband of broach frequency interval and accurately adjusting arbitrarily;
2, the frequency comb stability being produced by microwave signal driven modulator is high, the frequency comb phase place, the frequency stabilization that produce;
3, can use high stability or tunable continuous light laser instrument as light carrier, therefore produce frequency comb centre wavelength stable, and tunable;
4, equipment scheme is simple, and cost is lower;
5, break through the restriction of traditional optical frequency comb, met the application demand in the fields such as optical measurement, optical imagery, laser radar, laser spectroscopy, Fibre Optical Sensor, optical communication and Microwave photonics.
Brief description of the drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is the frequency comb generation device structure principle chart that broach frequency interval of the present invention can frequency sweep;
Fig. 2 is the Method And Principle figure of photoelectricity delay inequality broadband phase matching;
Fig. 3 is photoelectricity delay inequality broadband phase matching schematic diagram, wherein, (a) is photoelectricity delay inequality τ
s≠ 0 o'clock schematic diagram, (b) is photoelectricity delay inequality τ
s=0 o'clock schematic diagram;
Fig. 4 is the method flow diagram of microwave-driven signal broadband phase matching;
Fig. 5 is by being produced frequency comb broach frequency interval broadband frequency sweep design sketch in the embodiment of the present invention;
Fig. 6 by the embodiment of the present invention the spectrum of generation frequency comb, wherein, the spectrogram while (a) being minimum 8.5GHz for broach spacing frequency, (b) for broach spacing frequency is spectrogram when the highest 19.0GHz;
In figure: 101 is semiconductor laser, 102 is once moral photoelectricity phase-modulator of Mach, 103 is once moral photoelectricity intensity modulator of Mach, 104 is 3-dB microwave power divider, 105 is the first gain adjustable wide-band microwave power amplifier, 106 is the second gain adjustable wide-band microwave power amplifier, 107 is adjustable microwave lag line, 108 is microwave signal generator, 109 is high-speed pulse signal generator, and 110 is once moral time delay of Mach correlator, and 111 is adjustment of balance optoelectronic receiver, 112 is high-speed sampling oscillograph, and 113 is direct current biasing.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented under taking technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Please refer to Fig. 1 to Fig. 6.
The present embodiment provides the frequency comb generation device that a kind of broach frequency interval can frequency sweep, comprise signal generator, continuous wave laser, photoelectricity phase-modulator, photoelectricity intensity modulator, microwave power divider, the first wide-band microwave power amplifier, the second wide-band microwave power amplifier and adjustable microwave lag line, wherein, described signal generator forms two-way output terminal after microwave power divider, wherein, first via output terminal is connected with photoelectricity phase-modulator after the first wide-band microwave power amplifier, the second road output terminal is connected with photoelectricity intensity modulator after the second wide-band microwave power amplifier through adjustable microwave lag line successively, described continuous wave laser is exported through photoelectricity phase-modulator and the photoelectricity intensity modulator of cascade successively, described photoelectricity intensity modulator is provided with direct current biasing.
Further, also comprise time delay correlator, optoelectronic receiver and sampling oscilloscope, the output terminal of described photoelectricity intensity modulator is connected with time delay correlator, and described time delay correlator is connected with optoelectronic receiver, and described optoelectronic receiver is connected with sampling oscilloscope.
Further, described signal generator adopts microwave signal generator or high-speed pulse signal generator.
A kind of above-mentioned broach frequency interval that the present embodiment provides can frequency sweep frequency comb generation device, its frequency comb production method, comprises the following steps:
Step 1, signal generator produces wideband frequency adjustable microwave signal and is divided into two-way after by microwave power divider, and the first via is amplified rear drive photoelectricity phase-modulator through the first wide-band microwave power amplifier; , after adjustable microwave lag line, then amplify through the second wide-band microwave power amplifier on the second tunnel, drives photoelectricity intensity modulator;
Step 2, the optical carrier of continuous wave laser output, through photoelectricity phase-modulator and the photoelectricity intensity modulator of cascade, regulates the bias point of photoelectricity intensity modulator to make output form smooth frequency comb;
Step 3, regulates variable delay line, and making photoelectricity postpone difference is zero, realizes broadband phase matching; Now, the signal of signal generator output broadband frequency sweep, correspondingly, the broach spacing frequency of the frequency comb of photoelectricity intensity modulator output also thereupon frequency sweep change, produce the frequency comb that broach frequency interval can broadband frequency sweep.
Further, in described step 2, the frequency of the microwave signal that the broach spacing frequency of frequency comb produces with signal generator is identical.
Further, also comprise step 4, described step 4 is specially:
The broach frequency interval that step 3 produces can broadband frequency sweep frequency comb, after time delay correlator and optoelectronic receiver, show by sampling oscilloscope.
Below in conjunction with accompanying drawing, the present embodiment is elaborated.
In the present embodiment,
Continuous wave laser can adopt semiconductor laser;
Photoelectricity phase-modulator can adopt once moral photoelectricity phase-modulator of Mach;
Photoelectricity intensity modulator can adopt once moral photoelectricity intensity modulator of Mach;
Microwave power divider can adopt 3-dB microwave power divider;
The first wide-band microwave power amplifier and the second wide-band microwave power amplifier all can adopt gain adjustable wide-band microwave power amplifier;
Time delay correlator can adopt once moral time delay of Mach correlator;
Optoelectronic receiver can adopt adjustment of balance optoelectronic receiver;
Sampling oscilloscope can adopt high-speed sampling oscillograph;
Fig. 1 is theory diagram of the present invention.The broach frequency interval that the present embodiment provides can frequency sweep frequency comb generation device, mainly comprise: semiconductor laser, Mach is once moral photoelectricity intensity modulator, 3-dB microwave power divider, wide-band microwave power amplifier, adjustable microwave lag line, high-speed pulse signal generator or microwave signal generator, once moral time delay of Mach correlator, high speed optoelectronic receiver, high-speed sampling oscillograph of moral photoelectricity phase-modulator, Mach once.First utilize high-speed pulse signal generator or microwave signal generator, once moral time delay of Mach correlator, high speed optoelectronic receiver, high-speed sampling oscillograph to make the broadband phase matching of the photoelectricity delay inequality between cascaded modulator, make described τ
s=0, re-use microwave signal generator produce described broach spacing frequency broadband can frequency sweep optical frequency com.
Be specially:
One, Fig. 2 is photoelectricity delay inequality broadband phase matching method schematic diagram: high-speed pulse signal generator 109 produces the 10MHz square-wave signal that the rise time is 30ps, by being divided into two-way after 3-dB microwave power divider 104, one road is directly inputted to gain adjustable wide-band microwave power amplifier 105 through amplifying once moral photoelectricity phase-modulator 102 of rear drive Mach, and another road is first being input to gain adjustable wide-band microwave power amplifier 106 through amplifying once moral photoelectricity intensity modulator 103 of rear drive Mach after adjustable microwave lag line 107.The light carrier that narrow linewidth semiconductor laser 101 is exported, after once moral photoelectricity phase-modulator 102 and once moral photoelectricity intensity modulator 103 modulation of Mach of the Mach of cascade, after once moral time delay of the Mach correlator 110 that is Δ t=100ps through time delay, be input to high speed optoelectronic receiver 111, observe its output by high-speed sampling oscillograph 112.
Two,, as shown in Fig. 3 (a), regulate adjustable microwave lag line, as photoelectricity delay inequality τ
s≠ 0 o'clock, there is π phase shift in two arm signals of once moral time delay of Mach correlator, therefore produced the burst pulse of the 100ps identical with the square-wave signal cycle at output terminal in one-period.As shown in Fig. 3 (b), as the complete broadband of photoelectricity delay inequality phase matching, i.e. τ
s=0 o'clock, there is not π phase shift in two arm signals of once moral time delay of Mach correlator, therefore there is no narrow pulse signal at output terminal.But due to limited Rise Time of Square Wave and receiver bandwidth, output pulse power is along with τ
sreduce and reduce.Pulse power and τ
swith respect to the variation tendency of broadband phase matching point as shown in Figure 4, when pulse power hour, then carry out further meticulous adjusting, can realize the broadband phase matching of photoelectricity delay inequality.
Three, as shown in Figure 1, in the present embodiment, producing the driving signal that broach spacing frequency broadband can frequency sweep optical frequency com is microwave signal generator 108, substitute in Part I (Fig. 2) high-speed pulse signal generator 109, the wideband frequency adjustable microwave signal of its generation is divided into two-way after by 3-dB power splitter, and it is four times of phase-modulator V that a road is amplified to peak-to-peak value through gain adjustable wide-band microwave power amplifier 105
π-PMvoltage rear drive phase-modulator 102; Another road is after tunable microwave chronotron, and being amplified to peak-to-peak value by gain adjustable microwave power amplifier 106 is twice intensity modulator V
π-IMvoltage rear drive intensity modulator 103.Regulate adjustable microwave chronotron to the photoelectricity described in step (2) to postpone broadband phase matching point, the direct current biasing 113 of adjusting strength modulator, forms smooth frequency comb output signal simultaneously.
Four, regulate microwave signal generator, make microwave signal frequency sweep in 8.5GHz to the 19.0GHz scope that exceedes an octave of output, output broach spacing frequency broadband can frequency sweep optical frequency comb as shown in Figure 5.Its broach flatness remains in 4dB in whole swept frequency range.
Five, Fig. 6 (a) and (b) for optical frequency comb is respectively minimum 8.5GHz and spectrogram when the highest 19.0GHz at broach spacing frequency.
Six,, when in the present embodiment, photoelectricity delay inequality departs from broadband phase matching point, the flatness of output frequency comb in whole broach spacing frequency swept frequency range changes.When not at best broadband phase matching point, the flatness of output frequency comb changes acutely in broach spacing frequency swept frequency range.Under actual conditions, because limited rise time described in step (2) and receiver bandwidth make the precision of broadband phase matching point limited, the non-linear of wideband power amplifer can be introduced extra frequency harmonics simultaneously, and the changing along with drive frequency variations of modulator half-wave voltage, cause exporting frequency comb has the flatness of 4dB to change in whole broach spacing frequency swept frequency range.
Seven,, taking microwave signal generator as example, the frequency comb production method that the broach frequency interval that the present embodiment provides can frequency sweep, is specially:
Step 1, is used the laser of continuous light laser instrument output as light carrier, successively passes through photoelectricity phase-modulator and the photoelectricity intensity modulator of cascade, output frequency comb signal; Wherein, photoelectricity phase-modulator and the photoelectricity intensity modulator of described cascade are driven by same microwave signal generator, and driving frequency is identical; The microwave signal that described microwave signal generator produces drives respectively photoelectricity phase-modulator and photoelectricity intensity modulator after amplifying by microwave power amplifier;
Output frequency comb signal can be expressed as:
Wherein, E
cfor the intensity of optical carrier, j is imaginary unit, and t is the time, and π is circular constant, ω
cfor the angular frequency of optical carrier, ω
s=2 π f
sfor driving the angular frequency of signal, f
sfor driving the frequency of signal, β
pM, β
iMand β
dCbe respectively phase-modulator, intensity modulator and the intensity modulator direct current biasing normalization depth of modulation with respect to its half-wave voltage, τ
s=τ
o-τ
ebe that between the modulator of two cascades, light signal postpones τ
owith microwave-driven signal delay τ
edelay inequality.The broach frequency interval of described frequency comb signal is the frequency f that drives microwave signal
s, the product ω of the broach flatness of described frequency comb signal and driving signal frequency and photoelectricity delay inequality
sτ
srelevant.
Step 2, photoelectricity delay inequality τ between the photoelectricity phase-modulator of described cascade and photoelectricity intensity modulator
s=0, while described photoelectricity delay inequality having been realized to broadband phase matching, described frequency comb signal is:
Wherein, n is broach numbering, J
n(x) represent n rank one class Bessel's function.Now, the broach flatness of described frequency comb is only relevant to the direct current biasing of the modulators modulate degree of depth and intensity modulator, and with drive the frequency-independent of signal.Regulate depth of modulation and direct current biasing, can obtain the optical frequency comb that broach is smooth.
Step 3, on the basis of step 1 and step 2, the frequency of the microwave signal that microwave signal generator is produced is carried out continuous frequency sweep, can produce the frequency comb of the continuous frequency sweep of broach frequency interval, keeps the broach flatness of described frequency comb simultaneously.
On the basis of technique scheme, described microwave signal generator can produce broadband frequency sweep microwave signal.The adjusting of photoelectricity delay inequality between described cascaded modulator, realizes by microwave delay line.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (6)
1. the frequency comb generation device that a broach frequency interval can frequency sweep, it is characterized in that, comprise signal generator, continuous wave laser, photoelectricity phase-modulator, photoelectricity intensity modulator, microwave power divider, the first wide-band microwave power amplifier, the second wide-band microwave power amplifier and adjustable microwave lag line, wherein, described signal generator forms two-way output terminal after microwave power divider, wherein, first via output terminal is connected with photoelectricity phase-modulator after the first wide-band microwave power amplifier, the second road output terminal is connected with photoelectricity intensity modulator after the second wide-band microwave power amplifier through adjustable microwave lag line successively, described continuous wave laser is exported through photoelectricity phase-modulator and the photoelectricity intensity modulator of cascade successively, described photoelectricity intensity modulator is provided with direct current biasing.
2. the frequency comb generation device that broach frequency interval according to claim 1 can frequency sweep, it is characterized in that, also comprise time delay correlator, optoelectronic receiver and sampling oscilloscope, the output terminal of described photoelectricity intensity modulator is connected with time delay correlator, described time delay correlator is connected with optoelectronic receiver, and described optoelectronic receiver is connected with sampling oscilloscope.
3. the frequency comb generation device that broach frequency interval according to claim 1 and 2 can frequency sweep, is characterized in that, described signal generator adopts microwave signal generator or high-speed pulse signal generator.
4. the frequency comb production method that broach frequency interval can frequency sweep, is characterized in that, comprises the following steps:
Step 1, signal generator produces wideband frequency tunable signal and is divided into two-way after by microwave power divider, and the first via is amplified rear drive photoelectricity phase-modulator through the first wide-band microwave power amplifier; , after adjustable microwave lag line, then amplify through the second wide-band microwave power amplifier on the second tunnel, drives photoelectricity intensity modulator;
Step 2, the optical carrier of continuous wave laser output, through photoelectricity phase-modulator and the photoelectricity intensity modulator of cascade, regulates the bias point of photoelectricity intensity modulator to make output form smooth frequency comb;
Step 3, regulates variable delay line, and making photoelectricity postpone difference is zero, realizes broadband phase matching; Now, the signal of signal generator output broadband frequency sweep, correspondingly, the broach spacing frequency of the frequency comb of photoelectricity intensity modulator output also thereupon frequency sweep change, produce the frequency comb that broach frequency interval can broadband frequency sweep.
5. the frequency comb production method that broach frequency interval according to claim 4 can frequency sweep, is characterized in that, in described step 2, the frequency of the signal that the broach spacing frequency of frequency comb produces with signal generator is identical.
6. frequency comb production method that can frequency sweep according to the broach frequency interval described in claim 4 or 5, is characterized in that, also comprise step 4, described step 4 is specially:
The broach frequency interval that step 3 produces can broadband frequency sweep frequency comb, after time delay correlator and optoelectronic receiver, show by sampling oscilloscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410141103.XA CN103941515B (en) | 2014-04-09 | 2014-04-09 | Comb frequency interval can the frequency comb generation device of frequency sweep and production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410141103.XA CN103941515B (en) | 2014-04-09 | 2014-04-09 | Comb frequency interval can the frequency comb generation device of frequency sweep and production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103941515A true CN103941515A (en) | 2014-07-23 |
| CN103941515B CN103941515B (en) | 2016-11-09 |
Family
ID=51189243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410141103.XA Active CN103941515B (en) | 2014-04-09 | 2014-04-09 | Comb frequency interval can the frequency comb generation device of frequency sweep and production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103941515B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536232A (en) * | 2015-01-05 | 2015-04-22 | 中国科学院半导体研究所 | Broadband optical frequency comb generating system based on phase lock control |
| CN105680301A (en) * | 2016-03-14 | 2016-06-15 | 中国科学院西安光学精密机械研究所 | Micro-ring resonator-based system and method for generating optical frequency comb with adjustable frequency interval |
| CN106848825A (en) * | 2017-04-12 | 2017-06-13 | 上海交通大学 | By cascading the method that optical modulator produces super flat frequency comb |
| CN107026693A (en) * | 2016-02-02 | 2017-08-08 | 华为技术有限公司 | Coherent receiver, the method detected for optical information |
| CN107356937A (en) * | 2017-08-25 | 2017-11-17 | 长春德信光电技术有限公司 | A kind of walking robot collision warning device based on Laser Detection Technique |
| CN107567670A (en) * | 2015-02-27 | 2018-01-09 | 门罗系统股份有限公司 | Make frequency comb stable |
| CN108153000A (en) * | 2018-01-04 | 2018-06-12 | 北京航空航天大学 | A kind of spectral line interval is equal to the frequency comb generator of optical fiber Brillouin frequency displacement |
| CN109257105A (en) * | 2018-10-08 | 2019-01-22 | 南京航空航天大学 | Broadband signal method of reseptance, device and EW receiver |
| CN109298239A (en) * | 2018-09-25 | 2019-02-01 | 中国空间技术研究院 | Photon lack sampling system and method towards microwave spectrum measurement |
| CN112039594A (en) * | 2020-08-28 | 2020-12-04 | 华中科技大学 | Narrow pulse type frequency sweep light source |
| CN112235051A (en) * | 2020-08-13 | 2021-01-15 | 华中科技大学 | Terahertz frequency sweeping source and system |
| CN112422179A (en) * | 2020-10-22 | 2021-02-26 | 西安空间无线电技术研究所 | Reconfigurable optical channel flexible extraction system and method based on comb switching |
| CN112670824A (en) * | 2020-12-25 | 2021-04-16 | 中国科学院上海微系统与信息技术研究所 | Terahertz quantum cascade laser double-optical comb frequency stabilization system |
| CN112994803A (en) * | 2021-02-19 | 2021-06-18 | 西安邮电大学 | Photon auxiliary vector terahertz signal communication system |
| CN113224622A (en) * | 2021-04-21 | 2021-08-06 | 中国人民解放军国防科技大学 | Communication band high-flatness large-comb-tooth-spacing linear polarization electro-optic modulation optical frequency comb light source |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11855694B1 (en) * | 2020-11-15 | 2023-12-26 | Cable Television Laboratories, Inc. | Systems and methods for full field transception |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060262930A1 (en) * | 2005-05-17 | 2006-11-23 | Mihaela Dinu | Phase locking in a multi-channel quantum communication system |
| CN101401032A (en) * | 2006-03-15 | 2009-04-01 | 独立行政法人情报通信研究机构 | Super flat optical frequency com signal generator |
| CN102929069A (en) * | 2012-09-14 | 2013-02-13 | 北京航空航天大学 | Power effective microwave signal configuration method in optical frequency comb generator |
| CN103149772A (en) * | 2013-03-22 | 2013-06-12 | 北京航空航天大学 | Optical frequency comb generator based on time-frequency mapping |
| CN103220045A (en) * | 2013-04-25 | 2013-07-24 | 上海大学 | Circulating frequency shifting comb spectrum generating system based on intensity modulation and application method of circulating frequency shifting comb spectrum generating system |
| WO2013155243A1 (en) * | 2012-04-11 | 2013-10-17 | University Of Central Florida Research Foundation, Inc. | Stabilization of an injection locked harmonically mode-locked laser via polarization spectroscopy for frequency comb generation |
-
2014
- 2014-04-09 CN CN201410141103.XA patent/CN103941515B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060262930A1 (en) * | 2005-05-17 | 2006-11-23 | Mihaela Dinu | Phase locking in a multi-channel quantum communication system |
| CN101401032A (en) * | 2006-03-15 | 2009-04-01 | 独立行政法人情报通信研究机构 | Super flat optical frequency com signal generator |
| WO2013155243A1 (en) * | 2012-04-11 | 2013-10-17 | University Of Central Florida Research Foundation, Inc. | Stabilization of an injection locked harmonically mode-locked laser via polarization spectroscopy for frequency comb generation |
| CN102929069A (en) * | 2012-09-14 | 2013-02-13 | 北京航空航天大学 | Power effective microwave signal configuration method in optical frequency comb generator |
| CN103149772A (en) * | 2013-03-22 | 2013-06-12 | 北京航空航天大学 | Optical frequency comb generator based on time-frequency mapping |
| CN103220045A (en) * | 2013-04-25 | 2013-07-24 | 上海大学 | Circulating frequency shifting comb spectrum generating system based on intensity modulation and application method of circulating frequency shifting comb spectrum generating system |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536232B (en) * | 2015-01-05 | 2017-04-05 | 中国科学院半导体研究所 | Based on the facies-controlled Reflection Optical Thin Film frequency comb generation system of lock |
| CN104536232A (en) * | 2015-01-05 | 2015-04-22 | 中国科学院半导体研究所 | Broadband optical frequency comb generating system based on phase lock control |
| CN107567670B (en) * | 2015-02-27 | 2020-03-03 | 门罗系统股份有限公司 | Stabilizing optical frequency comb |
| CN107567670A (en) * | 2015-02-27 | 2018-01-09 | 门罗系统股份有限公司 | Make frequency comb stable |
| CN107026693A (en) * | 2016-02-02 | 2017-08-08 | 华为技术有限公司 | Coherent receiver, the method detected for optical information |
| CN105680301A (en) * | 2016-03-14 | 2016-06-15 | 中国科学院西安光学精密机械研究所 | Micro-ring resonator-based system and method for generating optical frequency comb with adjustable frequency interval |
| CN105680301B (en) * | 2016-03-14 | 2018-12-14 | 中国科学院西安光学精密机械研究所 | The frequency comb generation system and method at the adjustable frequency interval based on micro-ring resonant cavity |
| CN106848825A (en) * | 2017-04-12 | 2017-06-13 | 上海交通大学 | By cascading the method that optical modulator produces super flat frequency comb |
| CN106848825B (en) * | 2017-04-12 | 2018-12-25 | 上海交通大学 | The method for generating super flat frequency comb by cascading optical modulator |
| CN107356937A (en) * | 2017-08-25 | 2017-11-17 | 长春德信光电技术有限公司 | A kind of walking robot collision warning device based on Laser Detection Technique |
| CN108153000A (en) * | 2018-01-04 | 2018-06-12 | 北京航空航天大学 | A kind of spectral line interval is equal to the frequency comb generator of optical fiber Brillouin frequency displacement |
| CN109298239A (en) * | 2018-09-25 | 2019-02-01 | 中国空间技术研究院 | Photon lack sampling system and method towards microwave spectrum measurement |
| CN109257105A (en) * | 2018-10-08 | 2019-01-22 | 南京航空航天大学 | Broadband signal method of reseptance, device and EW receiver |
| CN112235051A (en) * | 2020-08-13 | 2021-01-15 | 华中科技大学 | Terahertz frequency sweeping source and system |
| CN112235051B (en) * | 2020-08-13 | 2022-02-18 | 华中科技大学 | Terahertz frequency sweeping system |
| CN112039594A (en) * | 2020-08-28 | 2020-12-04 | 华中科技大学 | Narrow pulse type frequency sweep light source |
| CN112422179A (en) * | 2020-10-22 | 2021-02-26 | 西安空间无线电技术研究所 | Reconfigurable optical channel flexible extraction system and method based on comb switching |
| CN112422179B (en) * | 2020-10-22 | 2022-02-01 | 西安空间无线电技术研究所 | Reconfigurable optical channel flexible extraction system and method based on comb switching |
| CN112670824A (en) * | 2020-12-25 | 2021-04-16 | 中国科学院上海微系统与信息技术研究所 | Terahertz quantum cascade laser double-optical comb frequency stabilization system |
| CN112994803A (en) * | 2021-02-19 | 2021-06-18 | 西安邮电大学 | Photon auxiliary vector terahertz signal communication system |
| CN113224622A (en) * | 2021-04-21 | 2021-08-06 | 中国人民解放军国防科技大学 | Communication band high-flatness large-comb-tooth-spacing linear polarization electro-optic modulation optical frequency comb light source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103941515B (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103941515A (en) | Optical frequency comb generation device and method with comb tooth frequency interval capable of being scanned | |
| US8175126B2 (en) | Arbitrary optical waveform generation utilizing optical phase-locked loops | |
| CN107069390B (en) | Optical-electronic oscillator | |
| CN111342332B (en) | Active mode-locking photoelectric oscillator | |
| CN109713552B (en) | High-stability microwave signal generation method based on stimulated Brillouin scattering effect | |
| CN113161863B (en) | Microwave pulse generating device and method based on time domain mode locking photoelectric oscillator | |
| CN107682087B (en) | A kind of steady phase transmission method of microwave optical fiber for eliminating local oscillator leakage in passive phase correction | |
| CN108153000B (en) | Optical frequency comb generator with spectral line interval equal to optical fiber Brillouin frequency shift | |
| CN111897175B (en) | Ultrahigh repetition frequency tunable optical frequency comb generation device and method | |
| CN112505716B (en) | Electric control double-optical frequency comb ranging system with high updating frequency | |
| CN103855599A (en) | Method for achieving laser frequency-offset-lock through scanning confocal cavity F-P interferometer | |
| CN112039666A (en) | Frequency locking and phase stabilizing method and system based on quantum key distribution | |
| CN114361931B (en) | Ultra-low noise electro-optical frequency comb generating device | |
| CN110657955B (en) | Laser frequency drift measurement method and system based on frequency shift feedback loop | |
| Wu et al. | Frequency response of the noise conversion from relative intensity noise to phase noise in the photodetection of an optical pulse train | |
| CN114336227B (en) | Microwave signal generating device based on low-distortion dissipative Kerr soliton | |
| CN113823986B (en) | Photo-induced microwave device | |
| CN108963725B (en) | Device and method for generating broadband microwave frequency comb | |
| López-Querol et al. | Low repetition rate optical frequency combs generated by pulsed gain-switching of semiconductor lasers | |
| CN113900065A (en) | Microwave signal generation method based on photoelectric oscillation loop and microwave signal source | |
| CN113922883A (en) | Device and method for generating flat broadband microwave frequency comb based on cascade modulation light injection semiconductor laser | |
| CN218887797U (en) | Device for generating broadband optical frequency comb based on arbitrary waveform generator | |
| CN116346236B (en) | Optical pulse frequency division method and device | |
| CN107706707A (en) | Low noise acousto-optic multifrequency tunable oscillator | |
| Tang et al. | Generation of microwave frequency combs based on dual-frequency injected optoelectronic oscillator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |