CN105007120B - The 8 times frequency optical millimeter waves production methods and system cascaded based on light polarization modulator - Google Patents
The 8 times frequency optical millimeter waves production methods and system cascaded based on light polarization modulator Download PDFInfo
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Abstract
The present invention proposes a kind of 8 times frequency optical millimeter waves production methods cascaded based on light polarization modulator, its schematic diagram is as shown in drawings, combined using light polarization modulator with polarizer, the suppression to odd-order sideband can be realized, two light polarization modulators are connected, realize suppression twice to odd-order sideband, simultaneously, the radiofrequency signal being carried on two light polarization modulators is set to have the phase difference of pi/2, and control the modulation index of light polarization modulator, other sidebands in addition to positive and negative quadravalence sideband is inhibited, and then generate octonary light load millimeter-wave signal.Acted on by the beat frequency of photodetector, obtain electrical domain millimeter-wave signal, its frequency is the octuple of RF local oscillator.This method need not control direct current biasing, without optical filter, so the millimeter wave produced has the advantages that high stability, purity of frequency spectrum height, frequency-adjustable and adjustable extent is wide.
Description
Technical field
The light at radio frequency (RoF) system centre station is carried the present invention relates to optic communication and millimetre-wave attenuator field, more particularly to light
Carrying millimeter wave generation technology, there is provided a kind of simple in construction, system stabilization, the method that can produce the millimeter wave of frequency-tunable.
Background technology
It is a kind of to combine the new of fiber optic communication and microwave communication that light, which carries radio frequency (Radio over Fiber, ROF) technology,
The type communication technology.On the one hand, for fiber optic communication, low-loss and high bandwidth characteristic due to optical fiber, fiber optic communication is
Gradually from the application development of core net to the access network close to user.With the appearance of increasing broadband multimedia services
And popularization, high speed, the Optical Access Network of Large Copacity have become the developing direction of optical communication field.On the other hand, for wireless
For communication, due to convenient, individualized and ubiquitous characteristic, wireless access technology has become global communications network development
Another important directions.And both is combined to the developing direction of undoubtedly future communications, thus RoF technologies are also born.
In numerous key technologies of ROF system, the generation of high-quality millimeter wave is even more to improve light carrier radio communication RoF systems
The key technology of performance of uniting and reduction system cost, proposes the generation scheme of millimeter wave so far in existing many documents.With
The development of microwave photon technology, high frequency is produced using Microwave photonics, the millimeter wave of high stability has significant advantage.At present
The study hotspot in the field is how to obtain high-quality, the photoproduction millimeter-wave signal of high band, including high-purity millimeter-wave signal
Generation and overcome the millimeter-wave signal of fiber dispersion effects to transmit.Recent years, academia reports the milli of various ways
Metric wave flashlight generation technique, such as light heterodyne method, investigation mission outside the city or town preparation method, based on nonlinear effect four-wave mixing effect method and by
Swash Brillouin Scattering etc..In the method for the generation millimeter-wave signal reported, light investigation mission outside the city or town preparation method has system architecture because of it
Simply, the advantage of stable operation and frequency-tunable is widely used.Some research institutions and tissue are also all sharp
Use up investigation mission outside the city or town preparation method and have devised various microwave multiple-frequency systems, Clock Multiplier Factor is two frequencys multiplication, quadruple, six frequencys multiplication, eight
Frequency multiplication, twelvefold frequency, the modulator used also have intensity modulator, light polarization modulator and phase-modulator etc..At these
Among external modulator, light polarization modulator (PolM) because its as a special phase-modulator can realize opposite phase modulate
The transverse electric mode and TM mode of index, relative usage are more flexible, and it can realize that suppression is carried respectively under different driving powers
The advantages of ripple, suppression even-order harmonics and suppression odd-order harmonics, more and more widely paid close attention to and applied.
At present, the PolM researchs being applied in RoF systems are had to the main results of the following aspects：1st, based on inclined
Shake modulator and obtain frequency multiplication photoelectric oscillator (OEO), 2, generate frequency comb spectrum based on light polarization modulator, 3, adjusted based on polarization
The millimeter wave frequency multiplication of device processed is produced, but these frequency multiplication achievements are mostly confined to quadruple.
To sum up consider, in order to produce high frequency, high stability millimeter wave, and to reach that system architecture is simple, stable operation
With the purpose of frequency-tunable, this patent proposes the octonary light based on two PolM of cascade and carries millimeter wave generating method.Should
System architecture designed by method is simple and easy-to-use, because the modulator used is PolM, so direct current biasing is not required to, so as to not have
There is the influence that offset drift is brought, the stability of a system is high；Additionally, due to optical filter that need not be needed for traditional external modulation method,
The frequency tuning speed for so producing millimeter wave is high, and adjustable extent is big, and transmission performance is good.
The content of the invention
The present invention provides a kind of 8 times frequency optical millimeter waves production methods based on two light polarization modulator cascades.
Using the PolM of two cascades, suppression twice to odd-order sideband is realized, and by RF driving signal
Control with PolM modulation indexs finally only remains positive and negative quadravalence sideband, so as to reach octonary effect.
First, the linearly polarized light sent by laser is injected into a light polarization modulator by a Polarization Controller PC
PolM, regulation PC make linearly polarized light polarization direction and PolM two main shaft angles into 45 degree, realize linearly polarized light in PolM
Two orthogonal polarisation states on component it is equal, PolM frequency be fRFRadio frequency signals drive under, two crossed polarized lights point
Two opposite phase-modulations are not generated, and the optical signal expression formula of PolM outputs is as follows：
Wherein E0And ω0=2 π f0It is the amplitude and angular frequency of the light carrier of input, β respectively1It is first PolM modulation
Index, ωRF=2 π fRFIt is the angular frequency of RF driving signal.Two crossed polarized lights shown in formula (1) pass through a polarization
Piece pol makes two crossed polarized lights synthesize a linearly polarized light, and the angle for adjusting pol main shafts and two crossed polarized lights is 45
Spend, then the expression formula of the linearly polarized light of polarizer output is
Formula (2) is deployed based on the primal Bessel function, obtained
Wherein, Jn(x) n rank the primal Bessel functions are represented, from formula (3) as can be seen that the odd number of output optical signal
Rank sideband is suppressed.Then, the optical signal shown in formula (3) is incided in second PolM, and it is acted on and first PolM phase
Together, but second PolM RF driving signal and first have the phase shift of pi/2, afterwards, then by second polarizer pol
Synthesis, second pol main shaft is 45 degree equally with the angle of two crossed polarized lights, then its output is represented by
Wherein β2It is second PolM modulation index.Formula (4) is deployed based on the primal Bessel function, obtained
Arrive
The odd-order sideband of the optical signal exported it can be seen from formula (5) is suppressed, only remaining carrier wave and even-order side
Band.When the value of modulation index is smaller, the Bessel functions of quadravalence and higher order can be ignored, so, we open up formula (5)
Open as follows
The optical signal of generation is set to comprise only positive and negative quadravalence sideband, we need to be by the light carrier in formula (6) and positive and negative two
Rank sideband is curbed, therefore we need to ensure J0(β1)J0(β2)-2J2(β1)J2(β2)=0, while J0(β1)J2(β2)-J2(β1)
J0(β2)=0, it is hereby achieved that the relation that two PolM modulation index is met is β1=β2=1.7.
When meeting above-mentioned condition, the light of generation carries millimeter wave expression formula and is
It can thus be seen that being only left positive and negative quadravalence sideband in the light wave of generation；Detected with photoelectric detector PD, it is raw
Into electrical domain millimeter-wave signal, its frequency is the octuple of RF driving signal frequency, and its photoelectric current expression formula is
I=μ | Ec|2=2J2 4(β)μE0 2[1+cos8ωRFt] (8)
The present invention provides a kind of 8 times frequency optical millimeter waves generation systems based on two light polarization modulator cascades.
System includes：One continuous laser source CW, Polarization Controller PC, radio frequency source RF, phase-shifter PS,
Two light polarization modulator PolM, two polarizer pol and a photoelectric detector PD.Continuous lasing light emitter CW：Frequency required for producing
Rate is f0Continuous light wave；Polarization Controller PC：Regulation PC makes polarization direction and two main shafts of PolM of the linearly polarized light of input
In angle of 45 degrees, so that component of the linearly polarized light in PolM two orthogonal polarisation states is equal；Radio frequency source RF：As PolM
RF driving source, its frequency be fRF, then the frequency as 8f of the octonary electrical domain millimeter-wave signal producedRF；Phase-shifter PS：
The phase shift of a pi/2 is provided for the radiofrequency signal that is modulated on two PolM, so that modulating the light carrier and just of generation twice
Negative second order sideband has opposite amplitude, produces the effect of cancellation superposition, when modulation depth is 1.7, light carrier and positive and negative two
Amplitude after the superposition of rank sideband cancellation is 0, and then curbs these sidebands；Light polarization modulator PolM：It is f in frequencyRFPenetrate
Under the driving of frequency signal, two opposite phase-modulations are provided for two crossed polarized lights being input to modulator；Polarizer pol：
Two crossed polarized lights of input are synthesized into a linearly polarized light, its synthesize linearly polarized light size by polarizer main shaft with
Angle determines that in the present invention, this angle is set to 45 degree between two crossed polarized lights, then the linearly polarized light synthesized is two
The constant amplitude coherent superposition of individual crossed polarized light；Photoelectric detector PD：For realizing that frequency interval is 8fRFTwo optical sidebands bat
Frequently, frequency is converted into for 8fRFMillimeter wave electric signal.
Compared with the method and system of other frequencys multiplication, times frequency generating method and the advantage of system that the present invention is provided are：
Modulator used is light polarization modulator, it is not necessary to control its direct current biasing, so will not be impacted because of offset drift,
It is high that the octonary light of generation carries millimeter-wave signal stability；The simultaneously this control mode for producing the method that light carries millimeter wave is very simple
It is single, it is only necessary to provide the phase shift of pi/2 plus a phase-shifter between two RF driving signals, while adjusting PolM tune
Index processed can just reach the purpose for suppressing unnecessary sideband.Optical filter is not needed in view of this method, so what is produced is octuple
Frequency light carries millimeter-wave signal frequency-adjustable and adjustable extent is wide.
Brief description of the drawings
Fig. 1 show system link figure
Fig. 2 show octonary light and carries millimeter-wave signal spectrogram
The radio spectrum figure for the photoelectric current that Fig. 3 is obtained by photodetector
The oscillogram for the photoelectric current that Fig. 4 is obtained by photodetector
Embodiment
First, as shown in figure 1, frequency is f0=193.1THz, line width are inclined for the line that 500MHz continuous wave laser is sent
The light that shakes injects PC, and adjustment PC makes linearly polarized light polarization direction in angle of 45 degrees, realize that linearly polarized light exists with two main shafts of PolM
Component in PolM two orthogonal polarisation states is equal, and PolM is driven by 10GHz radiofrequency local oscillators, and sets modulation to refer to
Number is 1.7.Two crossed polarized lights exported from the first PolM are collectively referred to as a linearly polarized light by a pol, regulation pol master
Axle and two crossed polarized lights are into 45 degree of angles, then the linearly polarized light synthesized is the constant amplitude coherent superposition of two crossed polarized lights, from
And suppress odd-order sideband, only remaining light carrier and even-order sideband.The light wave of pol outputs is injected into the 2nd PolM, and it is penetrated
Frequency driving source be with first identical 10GHz local oscillator, but have the phase shift of pi/2 with first radiofrequency signal, this
Phase shift is provided by phase-shifter, and second PolM modulation index is also set to 1.7.From two cross-polarizations of second PolM output
Light is combined into linearly polarized light by another pol, second pol major axes orientation still with two crossed polarized lights into 45 degree of angles, from
And generate positive and negative quadravalence sideband and eliminate light carrier and positive and negative second order sideband, the spectrogram of generation is as shown in Fig. 2 can see
The spectrum being born is mainly comprising two positive and negative quadravalence sidebands.After being detected by PD, two quadravalence sideband beat frequencies will be produced
Raw octonary millimeter wave, because RF local oscillator is 10GHz, so the electrical domain millimeter-wave signal that 80GHz will be produced, the electrical domain of generation
The radio spectrum of millimeter-wave signal is as shown in Figure 3, it can be seen that radio spectrum is also included in addition to comprising 80GHz millimeter-wave signals
40GHz and 120GHz millimeter-wave signal, its reason is that least a portion of light carrier and positive and negative eight are also remained in the spectrum of generation
Rank sideband is not completely suppressed, the small part light carrier and positive and negative eight ranks sideband quilt only remained in spectrogram Fig. 2
Phase noise floods, so not observing, because phase noise has good coherence, so can be mutual after beat frequency
Offset, then occur in that 40GHz and 120GHz radiofrequency signal in the radio spectrum of generation, but the 40GHz of generation and
The amplitude very little of 120GHz radiofrequency signal, the influence caused to 80GHz millimeter-wave signals also very little, this point is as shown in Figure 4
Photoelectric current oscillogram it is also seen that.Due to optical filter being not present in the system, so the millimeter-wave signal frequency produced
Rate is adjustable, by the frequency for adjusting RF local oscillator, you can change the frequency of the electrical domain millimeter-wave signal produced, its frequency-adjustable model
Enclose very wide.
In summary, the present invention produces octonary millimeter wave using the mode of two PolM cascades, and is produced by beat frequency
80GHz electrical domain millimeter wave.This method does not need optical filter, and simple in construction, the millimeter wave of generation have stability it is high,
Purity of frequency spectrum height, frequency-adjustable and the wide advantage of adjustable extent.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, in addition, milli
The frequency range of metric wave is also not necessarily limited to 80GHz, and these equivalent variations and replacement and the adjustment of frequency range also should be regarded as this
The protection domain of invention.
Claims (5)
1. a kind of 8 times frequency optical millimeter waves production methods cascaded based on light polarization modulator, its feature is included：
First, the linearly polarized light sent by laser is injected into a light polarization modulator by a Polarization Controller PC
PolM, regulation PC make linearly polarized light polarization direction and PolM two main shaft angles into 45 degree, realize linearly polarized light in PolM
Two orthogonal polarisation states on component it is equal；PolM is f in frequencyRFRadio frequency signals drive under, two crossed polarized lights point
Two opposite phase-modulations are not generated, two crossed polarized lights is synthesized a linear polarization by a polarizer pol
The angle of light, regulation pol main shafts and two crossed polarized lights is 45 degree, then the odd-order sideband for exporting optical signal is suppressed, only
Remaining light carrier and even-order sideband；Then, the light wave of output is incided in second PolM, and it is acted on and first PolM phase
Together, but second PolM RF driving signal and first have the phase shift of pi/2, afterwards, then by second polarizer pol
Synthesis, second pol main shaft is 45 degree equally with the angle of two crossed polarized lights, then is still only included in the optical signal exported
Light carrier and even-order sideband, because two PolM radio-frequency driven has the phase shift of pi/2, and two PolM modulation index is
1.7, then light carrier, positive and negative second order sideband and positive and negative six ranks sideband are suppressed, positive and negative eight ranks sideband amplitude very little, so generation
Positive and negative quadravalence sideband is occupied an leading position in light wave；Detected with photoelectric detector PD, generate electrical domain millimeter-wave signal, its frequency
For the octuple of RF driving signal frequency.
2. method according to claim 1, it is characterised in that the light polarization modulator：
Light polarization modulator PolM is a special phase-modulator, can be to the transverse electric mode and TM mode of the light wave wherein transmitted
Coefficient phase-modulation on the contrary is modulated, under appropriate parameter configuration and polarizer pol cooperation, it is possible to achieve dual numbers
The suppression of order harmonicses or odd-order harmonics.
3. method according to claim 1, it is characterised in that described Polarization Controller：
Polarization Controller PC effect is the optical electric field vector direction for the linearly polarized light that regulation is injected into PolM, is allowed to and PolM ripples
It is 45 degree of angles to lead transverse electric mode and TM mode direction, and then the transverse electric mode and TM mode that are excited in PolM have identical width
Degree.
4. method according to claim 1, it is characterised in that described polarizer：
Polarizer pol effect is that two crossed polarized lights of input are synthesized into a linearly polarized light, its linear polarization synthesized
The size of light angle between polarizer main shaft and two crossed polarized lights is determined；In the present invention, the angle is 45 degree of timeliness
Fruit is optimal, and the linearly polarized light of synthesis is the constant amplitude coherent superposition of two crossed polarized lights；The odd-order sideband phase in first pol
Disappear superposition, the mutually long superposition of even-order sideband；In second pol, in addition to odd-order sideband cancellation is superimposed, it can also carry light
Ripple, positive and negative second order sideband are superimposed and cancellation due to other same frequency light waves that modulation is produced, and then suppress light carrier and positive and negative second order
Sideband, when modulation depth is 1.7, best results.
5. a kind of 8 times frequency optical millimeter waves generation systems based on two light polarization modulator cascades, it is characterised in that：
The system includes：Continuous laser source CW, Polarization Controller PC, radio frequency source RF, phase-shifter PS, two light polarization modulators
PolM, polarizer pol and photoelectric detector PD；
Continuous laser source CW in the system：Frequency required for producing is f0Continuous light wave；
Polarization Controller PC in the system：Regulation PC make polarization direction and two main shafts of PolM of the linearly polarized light of input into
45 degree of angles, so that component of the linearly polarized light in PolM two orthogonal polarisation states is equal；
Radio frequency source RF in the system：RF driving source as PolM, its frequency is fRF, then the octonary electrical domain milli produced
The frequency of metric wave signal is 8fRF；
Phase-shifter PS in the system：The phase shift of one pi/2 is provided for the radiofrequency signal that is modulated on two PolM, so that
Modulating the light carrier and positive and negative second order sideband of generation twice has opposite amplitude, produces the effect of cancellation superposition, deep in modulation
Spend for 1.7 when, the amplitude after light carrier and the superposition of positive and negative second order sideband cancellation is 0, and then curbs these sidebands；
Light polarization modulator PolM in the system：It is f in frequencyRFRadio frequency signals drive under, to be input to the two of modulator
Individual crossed polarized light provides opposite phase-modulation；
Polarizer pol in the system：Two crossed polarized lights of input are synthesized into a linearly polarized light, its line synthesized
The size of polarised light angle between polarizer main shaft and two crossed polarized lights is determined, is in the present invention 45 degree, synthesis
Linearly polarized light is the constant amplitude coherent superposition of two crossed polarized lights；
Photoelectric detector PD in the system：For realizing that frequency interval is 8fRFTwo optical sidebands beat frequency, be converted into frequency
Rate is 8fRFMillimeter wave electric signal.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6535328B2 (en) * | 1997-01-14 | 2003-03-18 | California Institute Of Technology | Methods and devices based on brillouin selective sideband amplification |
| CN101217318A (en) * | 2008-01-10 | 2008-07-09 | 湖南大学 | A frequency multiplication millimeter wave generation and simplification device based on optics four-wave mixing effect |
| CN101339346A (en) * | 2008-08-14 | 2009-01-07 | 上海交通大学 | Device and method for full light generation for quadruple high speed millimeter wave signal |
| CN101599800A (en) * | 2009-04-27 | 2009-12-09 | 北京邮电大学 | Utilize lithium niobate modulator to produce the apparatus and method of 8 times frequency optical millimeter waves |
| CN101794953A (en) * | 2010-02-01 | 2010-08-04 | 湖南大学 | Terahertz wave generating device and method based on optical four-wave mixing effect |
| EP2461497A1 (en) * | 2010-12-03 | 2012-06-06 | Raytheon Company | Method and apparatus for synthesizing ultra-wide bandwidth waveforms |
| CN102769496A (en) * | 2012-07-28 | 2012-11-07 | 文鸿 | Device and method for generating octuple-frequency optical millimeter waves |
| CN102854695A (en) * | 2012-09-03 | 2013-01-02 | 文鸿 | Device and method for generating terahertz wave based on nested Mach-Zehnder modulator |
| CN103078680A (en) * | 2012-11-28 | 2013-05-01 | 北京邮电大学 | Quadruplicated frequency millimeter wave generation method based on double-parallel MZ (Mach-zehnder) modulator |
| CN103346995A (en) * | 2013-06-26 | 2013-10-09 | 北京邮电大学 | Pre-coding method of 16QAM modulation and demodulation in ROF double-frequency system |
| CN103855595A (en) * | 2014-01-24 | 2014-06-11 | 北京邮电大学 | Tunable photoelectric oscillator |
| CN103997375A (en) * | 2014-05-13 | 2014-08-20 | 北京邮电大学 | Method and system for generating quadruplicated frequency optical millimeter waves |
-
2015
- 2015-07-08 CN CN201510398338.1A patent/CN105007120B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6535328B2 (en) * | 1997-01-14 | 2003-03-18 | California Institute Of Technology | Methods and devices based on brillouin selective sideband amplification |
| CN101217318A (en) * | 2008-01-10 | 2008-07-09 | 湖南大学 | A frequency multiplication millimeter wave generation and simplification device based on optics four-wave mixing effect |
| CN101339346A (en) * | 2008-08-14 | 2009-01-07 | 上海交通大学 | Device and method for full light generation for quadruple high speed millimeter wave signal |
| CN101599800A (en) * | 2009-04-27 | 2009-12-09 | 北京邮电大学 | Utilize lithium niobate modulator to produce the apparatus and method of 8 times frequency optical millimeter waves |
| CN101794953A (en) * | 2010-02-01 | 2010-08-04 | 湖南大学 | Terahertz wave generating device and method based on optical four-wave mixing effect |
| EP2461497A1 (en) * | 2010-12-03 | 2012-06-06 | Raytheon Company | Method and apparatus for synthesizing ultra-wide bandwidth waveforms |
| CN102769496A (en) * | 2012-07-28 | 2012-11-07 | 文鸿 | Device and method for generating octuple-frequency optical millimeter waves |
| CN102854695A (en) * | 2012-09-03 | 2013-01-02 | 文鸿 | Device and method for generating terahertz wave based on nested Mach-Zehnder modulator |
| CN103078680A (en) * | 2012-11-28 | 2013-05-01 | 北京邮电大学 | Quadruplicated frequency millimeter wave generation method based on double-parallel MZ (Mach-zehnder) modulator |
| CN103346995A (en) * | 2013-06-26 | 2013-10-09 | 北京邮电大学 | Pre-coding method of 16QAM modulation and demodulation in ROF double-frequency system |
| CN103855595A (en) * | 2014-01-24 | 2014-06-11 | 北京邮电大学 | Tunable photoelectric oscillator |
| CN103997375A (en) * | 2014-05-13 | 2014-08-20 | 北京邮电大学 | Method and system for generating quadruplicated frequency optical millimeter waves |
Non-Patent Citations (1)
| Title |
|---|
| Yang Yang et.al.Optical frequency comb generation using two cascaded polarization modulators.《Photon Netw Commun》.2015,第32卷126-132. * |
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