CN108282227A - A kind of steady phase partitioning system in quadruple signal optical fibre arbitrary point based on phase conjugation - Google Patents
A kind of steady phase partitioning system in quadruple signal optical fibre arbitrary point based on phase conjugation Download PDFInfo
- Publication number
- CN108282227A CN108282227A CN201810050527.3A CN201810050527A CN108282227A CN 108282227 A CN108282227 A CN 108282227A CN 201810050527 A CN201810050527 A CN 201810050527A CN 108282227 A CN108282227 A CN 108282227A
- Authority
- CN
- China
- Prior art keywords
- optical
- signal
- phase
- electric
- conjugation
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
- H04B10/5059—Laser transmitters using external modulation using a feed-forward signal generated by analysing the optical or electrical input
- H04B10/50597—Laser transmitters using external modulation using a feed-forward signal generated by analysing the optical or electrical input to control the phase of the modulating signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/506—Multiwavelength transmitters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/616—Details of the electronic signal processing in coherent optical receivers
- H04B10/6162—Compensation of polarization related effects, e.g., PMD, PDL
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/616—Details of the electronic signal processing in coherent optical receivers
- H04B10/6165—Estimation of the phase of the received optical signal, phase error estimation or phase error correction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/691—Arrangements for optimizing the photodetector in the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/697—Arrangements for reducing noise and distortion
Abstract
The present invention provides a kind of steady phase partitioning system in quadruple signal optical fibre arbitrary point based on phase conjugation, belong to stabilized fiber phase partitioning technical field, including the optical fibre ring link structure being mainly made of 1 local side, n remote station, n+1 sections of optical fiber links and n fiber coupler；Local station includes microwave source, dual carrier optical signal generation module, phase-conjugation light signal generator module, fiber coupler, the first photodetector and optical fiber circulator；Each remote station includes respectively electric light frequency mixing module, image intensifer, the second photodetector, electric amplifier and electrical filter.Main devices used in this system are photonic device, due to the high-frequency wideband characteristic of photonic device, the remote stable phase angle distribution of optical fiber of higher frequency signal may be implemented in this system, and effectively avoids the deterioration for using the local oscillator leakage and harmonic wave interference that are introduced when electric frequency mixer to phase stabilization precision.
Description
Technical field
The invention belongs to stabilized fiber phase partitioning technical fields, and in particular to a kind of quadruple signal light based on phase conjugation
The fine steady phase partitioning system in arbitrary point.
Background technology
In high-energy particle accelerator, very long baseline interferes (VLBI) aerial array etc. to the higher application of time-frequency required precision
In system, overstable radiofrequency signal optical fibre distribution system is because of lower transmission loss, the bandwidth of bigger, higher reliability and resists
The advantages that electromagnetic interference and be increasingly becoming a kind of more competitive RF signal distribution system.However, due to all residing for optical fiber
The temperature change and mechanical disturbance in collarette border, can cause the fluctuation of optical-fiber time-delay, and then lead to the phase of distributed radiofrequency signal
Shake, deteriorates the quality of far end Received Signal.How stabilized fiber phase partitioning system eliminates, compensates because optical-fiber time-delay is trembled if mainly being studied
Phase jitter caused by dynamic.Currently, the main compensation technique of stabilized fiber phase partitioning system includes：Active phase compensation technique and by
Dynamic Phase Compensation.Active phase compensation technique realizes phase stabilization using feedback loop control compensator.This technology
Very high compensation precision may be implemented, but its response speed is relatively slow and phase recovery time is longer.Another compensation technique ---
Based on the passive Phase Compensation of frequency mixing, may be implemented quickly to compensate with the phase fluctuation of Larger Dynamic range, while can
To avoid complicated phase error detection and feedback circuit.
Passive Phase Compensation has been extensively studied, wherein in point-to-multipoint branching type or ring topology time-frequency
It is applied in distribution system.In branching type system, different access stations is generally distinguished using multi-wavelength technology, but with
The increase for access station quantity, the wavelength interval between local station and access station will increase, group delay caused by such temperature change
Shi Bodong will inevitably impact on the stability of system.And it can be caused to avoid because of temperature using optical fibre ring distribution system
Group delay fluctuation.As shown in Figure 1, be the steady phase partitioning system of an existing optical fibre ring, the distribution system include mainly by
The optical fibre ring link knot that 1 local side, n remote station, n+1 sections of optical fiber links and n 2x2 types fiber coupler 105 are constituted
Structure now illustrates the distribution system so that local station distributes frequency-doubled signal to remote station n as an example.What microwave source 112 generated
Microwave signal divides two-way, enters frequency tripler 110 all the way and generates frequency tripling signal, another way is through electric coupler 111 by modulator
102 are modulated on the light carrier of the generation of laser 101；The optical signal generated after modulation enters fiber coupler 103 and is divided into two
Branch：One branch returns to local station through 104 counterclockwise transmission of first segment optical fiber to remote station, and along second segment optical fiber 106.
Optical signal back to local station enters photodetector 108, obtained electric signal and frequency tripler through optical fiber circulator 107
The 110 frequency tripling signals generated are mixed to obtain two frequency-doubled signals by electric frequency mixer 109, and two frequency-doubled signal is by modulator
102 are modulated on light carrier and are transferred to remote station through optical fiber 104, are filtered by the detection of detector 113 and electrical filter 115 in remote station
Two frequency-doubled signal of phase conjugation is obtained after wave；And the optical signal of another branch after optical fiber circulator 107 along clockwise direction
Remote station 1 is reached by optical fiber 106, the first fiber coupler 119, then is reached far through optical fiber 120, the second fiber coupler 105
End station n obtains two frequency multiplication electric signals of fl transmission in remote station n after detector 114 and electrical filter 116.Two frequency multiplication
Signal enters four-divider 118 after electric frequency mixer 117 is mixed with two frequency-doubled signal of phase conjugation and obtains stablizing the radio frequency transmitted
Signal.
In above-mentioned optical fibre ring arbitrary point distribution system, in order to realize that frequency is mixed, need using electric frequency mixer
110,117 and electric frequency multiplier 110, these devices will produce local oscillator leakage, harmonic wave and Image interference in actual use,
Reduce the precision of phase stabilization.
Invention content
It is let out for the local oscillator that electric frequency mixer introduces in the steady phase partitioning system of optical fiber radio frequency currently based on passive phase compensation
The problem of dew and harmonic wave interference can reduce phase stabilization precision, the present invention propose a kind of quadruple signal light based on phase conjugation
The fine steady phase partitioning system in arbitrary point.
Purpose to realize the present invention adopts the following technical scheme that：
A kind of steady phase partitioning system in quadruple signal optical fibre arbitrary point based on phase conjugation, including mainly by 1 local
The optical fibre ring link structure that end, n remote station, n+1 sections of optical fiber links and n 2x2 types fiber coupler (218) are constituted；Its
It is characterized in that, the local station includes microwave source (206), dual carrier optical signal generation module (201), the production of phase conjugation optical signal
Raw module (209), 1x2 types fiber coupler (207), the first photodetector (208) and optical fiber circulator (216)；Each distal end
It stands and is respectively put including electric light frequency mixing module (223), the first image intensifer (221), the second photodetector (222), the first electricity
Big device (231) and the first electrical filter (232)；Wherein,
The output end of the microwave source (206) is connected with the electric signal input end of dual carrier optical signal generation module (201)；
The dual carrier optical signal generation module (201), should for generating centre wavelength and the adjustable optical signal of dual carrier frequency interval
The output end of dual carrier optical signal generation module (201) forms 2 branches through 1x2 types fiber coupler (207), and the first branch is defeated
Outlet is connect by the first photodetector (208) with the electric signal input end of phase-conjugation light signal generator module (209), the
Two branch's output ends by corresponding optical fiber link formed optical fibre ring link structure after with the optical fiber circulator (216) 2
Port connects, and 1 port and 3 ports of the optical fiber circulator are total with the phase of phase-conjugation light signal generator module (209) respectively
Yoke light signal output end is connected with optical signal input；Two frequency multiplication of input of the phase-conjugation light signal generator module (209)
The frequency of electric signal is equal to the frequency interval for two light carriers that optical signal is detected through the first photodetector (208), for producing
Raw phase conjugation optical signal；
Each remote station is linked into the arbitrary point in optical fibre ring link by 1 2x2 type fiber coupler respectively；Each distal end
In standing, the ports a of coupled 2x2 type fiber couplers and the optical signal of electric light frequency mixing module (223) in the remote station are defeated
Enter end connection, the ports b of 2x2 type fiber couplers are connect with the input terminal of the first image intensifer (221)；The image intensifer
(221) output end is connected through the second photodetector (222) with the electric signal input end of electric light frequency mixing module (223), the electric light
The electrical signal of frequency mixing module (223) is connected by the first electric amplifier (231) with the first electrical filter (232), the electricity
The stable quadruple signal of filter (232) output.
Preferably, the dual carrier optical signal generation module (201) includes laser (202), the first offset controller
(203), the first electrooptic modulator (204) and the first tunable optical filter (205)；Wherein, the output end of the laser (202)
It is connect with the input terminal of the first electrooptic modulator (204) through the first Polarization Controller (203), first electrooptic modulator (204)
Output end be connected with the input terminal of the first tunable optical filter (205), the first tunable optical filter (205) export double frequency light carry
Wave signal.
Preferably, the phase-conjugation light signal generator module (209) includes the second electric amplifier (210), the second electrofiltration
Wave device (211), the second image intensifer (212), the second Polarization Controller (213), the second electrooptic modulator (214) and second adjustable
Optical filter (215)；Wherein, the electric signal input end of the phase-conjugation light signal generator module (209) is put through the second electricity successively
Big device (210) and the second electrical filter (211) are connected with the electric signal input end of the second electrooptic modulator (214)；The phase is total
The optical signal input of yoke optical signal generation module (209) is successively through the second image intensifer (212) and the second Polarization Controller
(213) it is connected with the optical signal input of the second electrooptic modulator (214)；The light signal output end of the electrooptic modulator (214)
It is connected with the input terminal of the second tunable optical filter (215), the output end output phase conjugation of the tunable optical filter (215)
Optical signal.
Preferably, the electric light frequency mixing module (223) include third electric amplifier (224), third electrical filter (225),
Third image intensifer (226), third Polarization Controller (227), third electrooptic modulator (228), optical filter (229) and
Three photodetectors (230)；Wherein, the electric signal input end of the electric light frequency mixing module (223) is successively through third electric amplifier
(224) it is connected with the electric signal input end of third electrooptic modulator (228) with third electrical filter (225)；The electric light is mixed mould
The optical signal input of block (223) is successively through third image intensifer (226) and third Polarization Controller (227) and third electric light
The optical signal input of modulator (228) is connected；The light signal output end of the electrooptic modulator (228) is through optical filter (229)
Export the electric signal after mixing afterwards with third photodetector (230).
Preferably, first electrooptic modulator (204) increases Dare modulator using the Mach for being biased in minimum transfer point.
Preferably, second electrooptic modulator (214) is using the double-parallel modulator for being biased in minimum transfer point.
Preferably, the third electrooptic modulator (228) increases Dare modulator using the Mach for being biased in linear work point.
Feature and advantageous effect of the present invention：
1, compared to passive Phase Compensation System before, main devices used in present system are photonic device,
The electronic devices such as electricity frequency mixer, frequency multiplier are not used, is then additional device as electric amplifier and electrical filter, is to reach phase
The effect answered, therefore this system is a kind of radiofrequency signal stabilized fiber phase partitioning system of full light.Due to the high bandwidth of photonic device
The remote stable phase angle distribution of optical fiber of higher frequency signal may be implemented in band characteristic, this system, and can be electric mixed to avoid using
Deterioration of the local oscillator leakage and harmonic wave interference introduced when frequency device to phase stabilization precision.
2, present system fiber annular link arbitrary point access remote station, propose through the invention based on full light
The remote station of sub- device can receive stable quadruple signal.
3, the system is a kind of full light stable phase angle distribution system, it is only necessary to a laser and simple photoelectric device,
Have many advantages, such as simple in structure, compact and at low cost.
4, the system realizes quadruple and the phase stabilization distribution of radiofrequency signal, used photon frequency doubling technology simultaneously
It can not be limited by device bandwidth frequency, therefore the system can, performance better low frequency microwave device reality relatively low using price
Existing high frequency millimeter wave signal stabilization transmission.
5, the system has only used an optical wavelength in fiber annular link so that transmitted in both directions has symmetrical well
Property, avoid influence of the group delay fluctuation to phase stabilization caused by temperature change.
Description of the drawings
Fig. 1 is the structure diagram of the steady phase partitioning system of existing optical fibre ring；
Fig. 2 is the structure diagram of the steady phase partitioning system in quadruple signal optical fibre arbitrary point the present invention is based on phase conjugation；
Fig. 3 is to modulate front and back double frequency optical signal in the surely phase-conjugation light signal generator module of phase partitioning system of the invention
Phase change schematic diagram；
Fig. 4 is the structure diagram of the embodiment of the present invention；
Fig. 5 is the test result figure of embodiment illustrated in fig. 4, wherein figure (a) is two frequencys multiplication for not carrying out phase stabilization compensation
The eye pattern test results of signal, figure (b) are the eye pattern test results of the quadruple signal compensated；
Fig. 6 is the result figure that embodiment illustrated in fig. 4 carries out signal time delay wave testing.
Specific implementation mode
Technical solution of the present invention is further described below in conjunction with the drawings and specific embodiments as follows：
The present invention proposes a kind of steady phase partitioning system in quadruple signal optical fibre arbitrary point based on phase conjugation, and structure is such as
Shown in Fig. 2.The distribution system includes mainly 1 local side, n (depending on concrete application demand can manage by the value range of n
By upper no maximum) the optical fibre ring link knot that constitutes of a remote station, n+1 sections of optical fiber links and n 2x2 types fiber coupler 218
Structure, local station include microwave source 206, dual carrier optical signal generation module 201, phase-conjugation light signal generator module 209,1x2
Type fiber coupler 207, the first photodetector 208 and optical fiber circulator 216；Each remote station includes respectively that electric light is mixed mould
Block 223, image intensifer 221, the second photodetector 222, electric amplifier 231 and electrical filter 232.The connection relation of each device
It is as follows：
206 output end of microwave source is connected with the electric signal input end of dual carrier optical signal generation module 201.Dual carrier light is believed
For generating centre wavelength and the adjustable optical signal of dual carrier frequency interval, which generates for number generation module 201
201 output end of module forms 2 branches through 1x2 types fiber coupler 207, and first branch's output end passes through the first photodetector
208 connect with the electric signal input end of phase-conjugation light signal generator module 209, and second branch's output end passes through corresponding optical fiber
Link 217,219,233 (by taking two remote stations as an example) forms the port with optical fiber circulator 216 after optical fibre ring link structure
2 connections, the port 1 and port 3 of the optical fiber circulator 216 phase conjugation with phase-conjugation light signal generator module 209 respectively
Light signal output end is connected with optical signal input；The two frequency multiplication electric signals that phase-conjugation light signal generator module 209 inputs
Frequency is equal to the frequency interval for two light carriers that optical signal is detected through the first photodetector 208, for generating phase conjugation
Optical signal.Each remote station is linked into annular by 1 2x2 types fiber coupler 218,220 (by taking two remote stations as an example) respectively
Arbitrary point in optical fiber link.By taking remote station 1 as an example, the ports a of coupled 2x2 types fiber coupler 218 and remote station
The optical signal input of 1 electric light frequency mixing module 223 connects, and the ports b are connect with 221 input terminal of image intensifer；The image intensifer
221 output ends are connected through the second photodetector 222 with the electric signal input end of electric light frequency mixing module 223, electric light frequency mixing module
223 electrical signal is connected by electric amplifier 231 with electrical filter 232, and stable quadruple signal is exported.
The double frequency optical carrier that the local station 1 of the present invention is generated using double frequency light carrier module 201, passes through the first photoelectricity
Detector 208 can generate two frequency-doubled signals, after optical fiber link round-trip transmission and phase conjugation signal generator module 209,
Remote station can obtain two frequency-doubled signals of phase conjugation, by two frequency-doubled signals of two frequency-doubled signal of phase conjugation and fl transmission
Phase stabilization quadruple signal can be obtained after frequency mixing module (electricity mixing or photomixing).Specific signal assigning process is such as
Under：
In local station, microwave source 206 generates the microwave signal V to be distributed1And as the defeated of dual carrier optical signal module 201
Enter electric signal.Dual carrier optical signal generation module 201 generates double frequency optical carrier E1.The signal is through 1x2 type fiber couplers
207 points are Liang Ge branches, and a branch generates two frequency multiplication radiofrequency signal V through the first photodetector 2082, total as phase
The input electrical signal of yoke optical signal generation module 209；The fl transmission optical signal E of another branch1Make through optical fiber link 217
Output for the ports the d input signal of 2x2 types fiber coupler 218,2x2 types fiber coupler 218 is divided into two parts, output
Port a exports the optical signal E fluctuated containing optical-fiber time-delay2, output port c output signals are through optical fiber link 219 and other are remote
As 2 input signal of port of local station optical fiber circulator 216 after end station, optical fiber link.The signal is through optical fiber circulator 216
Input optical signal behind port 3 as phase-conjugation light signal generator module.The phase that phase-conjugation light signal generator module generates
Position conjugation optical signal E41 port through optical fiber circulator 216 transfers back to remote station 1 backward along optical fiber link 221,219, and by
The ports b of 2x2 types fiber coupler 218 obtain optical signal E5, the signal is through image intensifer 221 and the second photodetector 222
After obtain phase conjugation electric signal V3And as the input electrical signal of electric light frequency mixing module.V3And E2Through electric light frequency mixing module 223,
Stable quadruple signal V is obtained after electric amplifier 231, electrical filter 2324。
It is as follows to the specific implementation of each comprising modules and its function declaration in the present invention in conjunction with attached drawing 2：
Dual carrier optical signal generation module 201 includes：Laser 202, offset controller 203, electrooptic modulator 204 and can
Dim filter 205.Wherein, 202 output end of laser is connect through Polarization Controller 203 with the input terminal of electrooptic modulator 204,
The output end of electrooptic modulator 204 is connected with the input terminal of tunable optical filter 205.The output end of tunable optical filter 205 is defeated
Go out double frequency optical carrier E1.For the module for generating double frequency optical carrier, the optical signal of generation has centre wavelength and double
The feature that carrier frequency separation is adjustable.The module can utilize other electro-optical devices to realize.
Phase-conjugation light signal generator module 209 includes：Connected electric amplifier 210 and electrical filter 211, and successively
Connected image intensifer 212, Polarization Controller 213, electrooptic modulator 214 and tunable optical filter 215；Wherein, the module 209
The electric signal input end electric signal input end phase through electric amplifier 210 and electrical filter 211 and electrooptic modulator 214 successively
Even；The optical signal input of the module 209 light through image intensifer 212 and Polarization Controller 213 and electrooptic modulator 214 successively
Signal input part is connected；The light signal output end of electrooptic modulator 214 is connected with the input terminal of tunable optical filter 215, adjustable
The phase conjugation optical signal E of the output end output of optical filter 2154.By the first branch of fiber coupler 207 through the first light
Electric explorer 208 generates two frequency multiplication radiofrequency signal V2, the second branch after the ring-like link transmission of optical fiber return to local station, as
It is biased in the input optical signal of the modulator 214 of minimum transfer point, two frequencys multiplication which is exported through electrical filter 211
Electric signal is modulated, and is modulated front and back double frequency optical signal phase and is changed as shown in figure 3, due to optical carrier E3Two light carriers
Frequency interval be equal to two frequency-doubled signal V2Frequency, therefore modulated detection optical signal E4With unmodulated detection optical signal E3
Entrained radiofrequency signal phaseIt is conjugated each other, i.e., realizes the phase of signal by phase-conjugation light signal generator module 209
Position conjugation.
Electric light frequency mixing module 223 includes：Connected electric amplifier 224 and electrical filter 225 and sequentially connected light are put
Big device 226, Polarization Controller 227, electrooptic modulator 228, optical filter 229 and photodetector 230；Wherein, the module 223
The electric signal input end electric signal input end phase through electric amplifier 224 and electrical filter 225 and electrooptic modulator 228 successively
Even；The optical signal input of the module 223 light through image intensifer 226 and Polarization Controller 227 and electrooptic modulator 228 successively
Signal input part is connected；The light signal output end of electrooptic modulator 228 generates after optical filter 229 and photodetector 230
Electric signal after mixing.Phase conjugation electric signal V is realized by the module3With optical signal E2Mixing, and detect the light letter after mixing
Number obtain electric signal.
It embodiment and its should effectively verify：
Specific embodiments of the present invention are as shown in Fig. 4.Present system illustratively illustrates 20GHz radiofrequency signals
Steady phase partitioning, but the system can be applied to higher frequency range, need to only use the device and test equipment of higher frequency instead.For
The performance of test present system, adds test module oscillograph 334, adjustable optic fibre delay line 308, light in embodiment
Isolator 310.In addition, in order to stablize the bias voltage of electrooptic modulator 304,319,327, biased electrical is added in embodiment
Press control module 305,321,330.For the present embodiment by taking an arbitrary remote station as an example, specific implementation mode is as follows：
The light carrier of 302 generation wavelength 1550.240nm of tunable laser controls its polarization through Polarization Controller 303
State increases Dare modulator 304 into the Mach for being biased in minimum transfer point.Mach increase the bias voltage of Dare modulator 304 by
Control module 305 controls.The 5GHz microwave signals that light carrier is generated by microwave source 301 are modulated, and modulated optical signal enters the
One tunable optical filter 306.The centre wavelength and bandwidth for adjusting the tunable optical filter obtain double after being filtered to input optical signal
Frequency optical carrier E1.Double frequency optical carrier E1Divided for Liang Ge branches by 1x2 types fiber coupler 307：One branch is through band
Width be the first photodetector 313 of 12GHz, gain 40dB electric amplifier 314 and centre frequency 10GHz electrical filter
The electric signal of 10GHz is obtained after 315；Another branch enters first segment 10km single mode optical fibers through adjustable optic fibre delay line 308
309.The output end of single mode optical fiber 309 is connected through optoisolator 310 with 2x2 types fiber coupler 311.The fiber coupler 311
It is coupled out a part of optical signal and enters remote station as fl transmission optical signal；Another part optical signal is mono- through second segment 10km
Mode fiber 312 returns to local station.Another part optical signal enters image intensifer 317 after optical fiber circulator 316 and amplifies, then passes through
Polarization Controller 318 enters double-parallel modulator 319 after controlling its polarization state, and by after 1x2 types fiber coupler 307 the
The 10GHz electric signals modulation that one branch generates, and double-parallel modulator 319 is biased in minimum by Bias point control module 321
Transfer point.The double-parallel modulator 319 exports optical signal and enters the second tunable optical filter 320, adjusts the center of the filter
Frequency and bandwidth obtain phase conjugation optical signal E4.The phase conjugation optical signal is through optical fiber circulator 316, second segment 10km single modes
Optical fiber 312 and 2x2 types fiber coupler 311 are reversely transmitted to remote station.Phase conjugation optical signal back to remote station enters
Image intensifer 322 amplifies, the electric amplifier 326 of the second photodetector 325, gain 40dB through bandwidth 12GHz and center frequency
Phase conjugation 10GHz electric signals are generated after the electrical filter 328 of rate 10GHz.The 10GHz electric signals with through image intensifer 323,
Fl transmission optical signal after Polarization Controller 324 increases Dare modulator 327 by Mach and carries out electric light mixing.Mach increases Dare
Modulator 327 is biased in linear work point by bias voltage control module 330.Optical signal after mixing is through optical band pass filter
331, it obtains stablizing after the electrical filter 329 of photodetector 332,30dB gains electric amplifier 333 and centre frequency 20GHz and divide
The 20GHz signals matched.
Utilize four times of two frequency-doubled signals and the output of electrical filter 329 that test scope 334 exports electrical filter 328
Frequency signal is tested, and the trigger signal of oscillograph 334 is provided by the 5GHz signals that microwave source 301 generates.
Two frequency-doubled signals and the quadruple signal compensated that do not carry out phase stabilization compensation are carried out in embodiment
Eye pattern is tested, shown in (a) and (b) of test result such as Fig. 5.It can be seen that the signal without overcompensation is subject to serious phase
Position drift, that is, the eye pattern waveform after being superimposed are wider；And after the compensation of the phase fluctuation by being conjugated based on light microwave phase, quadruple
The eye pattern of signal does not deteriorate, and is not affected by the influence of optical-fiber time-delay fluctuation.It is carried out according to phase stabilization distribution system shown in Fig. 4
The time delay wave testing of signal.Testing time is 1 hour, tests the signal without phase compensation and compensated quadruple respectively
Delay Variation of the signal in one hour.When test, the 5GHz signals of microwave source output are believed as the triggering of sampling oscilloscope
Number, using sampling oscilloscope tracer signal in the Delay Variation of different moments, the results are shown in Figure 6.The ordinate in left side in Fig. 6
Axis corresponds to the thermal compensation signal of 20GHz for the non-thermal compensation signals of 10GHz, right side axis of ordinates.It can be seen that not compensated signal exists
Delay Variation in one hour is about 180ps.And after phase fluctuation compensates, the fluctuation of the time delay of quadruple signal ±
Within 2ps, correspond to root mean square time delay 0.86ps, illustrate the inventive method have apparent compensation effect, can stablize due to
Optical-fiber time-delay caused by temperature change is shaken.
It should be understood that only being illustrated rather than to the description of the invention carried out in described above and explanation limited
, and under the premise of not departing from the present invention as defined by the appended claims, above-described embodiment can be carried out various
Change, deform, and/or corrects.
Claims (7)
1. a kind of steady phase partitioning system in quadruple signal optical fibre arbitrary point based on phase conjugation, including mainly by 1 local side,
The optical fibre ring link structure that n remote station, n+1 section optical fiber link and n 2x2 types fiber coupler (218) are constituted；Its feature
It is, the local station includes microwave source (206), dual carrier optical signal generation module (201), phase conjugation optical signal generation mould
Block (209), 1x2 types fiber coupler (207), the first photodetector (208) and optical fiber circulator (216)；Each remote station is equal
Respectively include electric light frequency mixing module (223), the first image intensifer (221), the second photodetector (222), the first electric amplifier
(231) and the first electrical filter (232)；Wherein,
The output end of the microwave source (206) is connected with the electric signal input end of dual carrier optical signal generation module (201)；It is described
Dual carrier optical signal generation module (201) is carried for generating centre wavelength and the adjustable optical signal of dual carrier frequency interval, this pair
The output end of wave optical signal generation module (201) forms 2 branches, first branch's output end through 1x2 types fiber coupler (207)
It is connect with the electric signal input end of phase-conjugation light signal generator module (209) by the first photodetector (208), second point
2 ports of the branch output end after corresponding optical fiber link forms optical fibre ring link structure with the optical fiber circulator (216)
Connection, 1 port and 3 ports of the optical fiber circulator phase-conjugation light with phase-conjugation light signal generator module (209) respectively
Signal output end is connected with optical signal input；The two frequency multiplication telecommunications of input of the phase-conjugation light signal generator module (209)
Number frequency be equal to through the first photodetector (208) detect optical signal two light carriers frequency interval, for generating phase
Position conjugation optical signal；
Each remote station is linked into the arbitrary point in optical fibre ring link by 1 2x2 type fiber coupler respectively；Each remote station
In, the ports a of coupled 2x2 type fiber couplers are inputted with the optical signal of electric light frequency mixing module (223) in the remote station
End connection, the ports b of 2x2 type fiber couplers are connect with the input terminal of the first image intensifer (221)；The image intensifer (221)
Output end is connected through the second photodetector (222) with the electric signal input end of electric light frequency mixing module (223), which is mixed mould
The electrical signal of block (223) is connected by the first electric amplifier (231) with the first electrical filter (232), the electrical filter
(232) the stable quadruple signal of output.
2. the steady phase partitioning system in quadruple signal optical fibre according to claim 1 arbitrary point, which is characterized in that double loads
Wave optical signal generation module (201) includes laser (202), the first offset controller (203), the first electrooptic modulator (204)
With the first tunable optical filter (205)；Wherein, the output end of the laser (202) is through the first Polarization Controller (203) and the
The input terminal of one electrooptic modulator (204) connects, the output end and the first tunable optical filter of first electrooptic modulator (204)
(205) input terminal is connected, and the first tunable optical filter (205) exports double frequency optical carrier.
3. the steady phase partitioning system in quadruple signal optical fibre according to claim 1 arbitrary point, which is characterized in that the phase
Conjugate beam signal generator module (209) includes the second electric amplifier (210), the second electrical filter (211), the second image intensifer
(212), the second Polarization Controller (213), the second electrooptic modulator (214) and the second tunable optical filter (215)；Wherein, should
The electric signal input end of phase-conjugation light signal generator module (209) is successively through the second electric amplifier (210) and the second electrofiltration wave
Device (211) is connected with the electric signal input end of the second electrooptic modulator (214)；The phase-conjugation light signal generator module (209)
Optical signal input successively through the second image intensifer (212) and the second Polarization Controller (213) and the second electrooptic modulator
(214) optical signal input is connected；The light signal output end and the second tunable optical filter of the electrooptic modulator (214)
(215) input terminal is connected, and the output end output phase of the tunable optical filter (215) is conjugated optical signal.
4. the steady phase partitioning system in quadruple signal optical fibre according to claim 1 arbitrary point, which is characterized in that the electric light
Frequency mixing module (223) includes that third electric amplifier (224), third electrical filter (225), third image intensifer (226), third are inclined
Shake controller (227), third electrooptic modulator (228), optical filter (229) and third photodetector (230)；Wherein, should
The electric signal input end of electric light frequency mixing module (223) is successively through third electric amplifier (224) and third electrical filter (225) and the
The electric signal input end of three electrooptic modulators (228) is connected；The optical signal input of the electric light frequency mixing module (223) is successively through
Three image intensifers (226) and third Polarization Controller (227) are connected with the optical signal input of third electrooptic modulator (228)；
The light signal output end of the electrooptic modulator (228) exports mixing after optical filter (229) and third photodetector (230)
Electric signal afterwards.
5. the steady phase partitioning system in quadruple signal optical fibre according to claim 2 arbitrary point, which is characterized in that described first
Electrooptic modulator (204) increases Dare modulator using the Mach for being biased in minimum transfer point.
6. the steady phase partitioning system in quadruple signal optical fibre according to claim 3 arbitrary point, which is characterized in that described second
Electrooptic modulator (214) is using the double-parallel modulator for being biased in minimum transfer point.
7. the steady phase partitioning system in quadruple signal optical fibre according to claim 4 arbitrary point, which is characterized in that the third
Electrooptic modulator (228) increases Dare modulator using the Mach for being biased in linear work point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810050527.3A CN108282227B (en) | 2018-01-18 | 2018-01-18 | Phase conjugation-based phase-stable distribution system for quadruple frequency signal optical fiber at any point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810050527.3A CN108282227B (en) | 2018-01-18 | 2018-01-18 | Phase conjugation-based phase-stable distribution system for quadruple frequency signal optical fiber at any point |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108282227A true CN108282227A (en) | 2018-07-13 |
| CN108282227B CN108282227B (en) | 2020-05-19 |
Family
ID=62803985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810050527.3A Active CN108282227B (en) | 2018-01-18 | 2018-01-18 | Phase conjugation-based phase-stable distribution system for quadruple frequency signal optical fiber at any point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108282227B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061779A (en) * | 2019-04-28 | 2019-07-26 | 重庆三峡学院 | A kind of optical fiber telecommunications system |
| CN111147150A (en) * | 2019-12-18 | 2020-05-12 | 上海交通大学 | Passive phase compensation-based distributed optical frequency transmission device and transmission method |
| CN111147149A (en) * | 2019-12-17 | 2020-05-12 | 上海交通大学 | Optical frequency transmission device and transmission method based on passive phase compensation |
| CN111865421A (en) * | 2020-08-05 | 2020-10-30 | 中国电子科技集团公司第三十四研究所 | Optical fiber phase compensator of high-precision optical fiber interferometer |
| CN111917477A (en) * | 2020-08-12 | 2020-11-10 | 中国电子科技集团公司第四十四研究所 | Distributed optical fiber broadband phase-stable transmission system and method based on ring topology |
| CN111934773A (en) * | 2020-08-12 | 2020-11-13 | 中国电子科技集团公司第四十四研究所 | Distributed optical fiber broadband phase-stable transmission distribution system and method based on loop topology |
| CN112260759A (en) * | 2020-11-03 | 2021-01-22 | 中航光电科技股份有限公司 | Two-way homologous phase-coherent microwave optical fiber phase-stable transmission system |
| CN112260758A (en) * | 2020-11-03 | 2021-01-22 | 中航光电科技股份有限公司 | Bidirectional homologous phase-coherent microwave optical fiber phase-stable transmission method |
| CN112821956A (en) * | 2020-12-29 | 2021-05-18 | 网络通信与安全紫金山实验室 | Terahertz signal generation method and device |
| WO2021120485A1 (en) * | 2019-12-17 | 2021-06-24 | 上海交通大学 | Passive phase compensation-based optical frequency transfer device and transfer method |
| CN113098622A (en) * | 2021-03-14 | 2021-07-09 | 北京邮电大学 | Frequency transfer device based on bidirectional phase jitter compensation of optical frequency comb |
| CN114006660A (en) * | 2021-10-29 | 2022-02-01 | 上海交通大学 | Optical frequency transmission device and optical frequency transmission method based on time delay |
| CN114301528A (en) * | 2021-12-03 | 2022-04-08 | 中山大学 | Method and system for suppressing balanced enhanced phase noise in optical fiber communication |
| CN114337839A (en) * | 2021-12-30 | 2022-04-12 | 苏州六幺四信息科技有限责任公司 | Universal photoelectric component analysis method |
| CN114844566A (en) * | 2022-04-22 | 2022-08-02 | 中国电子科技集团公司第五十四研究所 | Environment self-adaptive high-precision optical carrier time-frequency transmission device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080055702A1 (en) * | 2004-09-24 | 2008-03-06 | Gabriele Ferrari | Method and Device for Multiplying Optical Frequencies by a Factor 1.5 |
| CN202043110U (en) * | 2011-03-04 | 2011-11-16 | 浙江大学 | Full light generator for ultra wide band multi-cycle pulse signals |
| CN103885268A (en) * | 2014-03-28 | 2014-06-25 | 中国科学院半导体研究所 | Device for generating all-optical quadruplicated frequency microwaves based on cross polarization modulation and Sagnac ring |
| US20140212140A1 (en) * | 2012-10-24 | 2014-07-31 | Zte (Usa) Inc. | Method and apparatus for generation of frequency- and phase-locked subcarrier |
| CN103997375A (en) * | 2014-05-13 | 2014-08-20 | 北京邮电大学 | Method and system for generating quadruplicated frequency optical millimeter waves |
| CN205142183U (en) * | 2015-12-04 | 2016-04-06 | 四川华讯中星科技有限公司 | High stable millimeter wave phase locked source |
-
2018
- 2018-01-18 CN CN201810050527.3A patent/CN108282227B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080055702A1 (en) * | 2004-09-24 | 2008-03-06 | Gabriele Ferrari | Method and Device for Multiplying Optical Frequencies by a Factor 1.5 |
| CN202043110U (en) * | 2011-03-04 | 2011-11-16 | 浙江大学 | Full light generator for ultra wide band multi-cycle pulse signals |
| US20140212140A1 (en) * | 2012-10-24 | 2014-07-31 | Zte (Usa) Inc. | Method and apparatus for generation of frequency- and phase-locked subcarrier |
| CN103885268A (en) * | 2014-03-28 | 2014-06-25 | 中国科学院半导体研究所 | Device for generating all-optical quadruplicated frequency microwaves based on cross polarization modulation and Sagnac ring |
| CN103997375A (en) * | 2014-05-13 | 2014-08-20 | 北京邮电大学 | Method and system for generating quadruplicated frequency optical millimeter waves |
| CN205142183U (en) * | 2015-12-04 | 2016-04-06 | 四川华讯中星科技有限公司 | High stable millimeter wave phase locked source |
Non-Patent Citations (3)
| Title |
|---|
| HAOJIE WANG,ETAL.: "All-Optical Arbitrary-Point Stable Quadruple Frequency Dissemination With Photonic Microwave Phase Conjugation", 《IEEE PHOTONICS JOURNAL》 * |
| HAOJIE WANG,ETAL.: "Multicore Fiber-Enabled Stable Millimeter-Wave Local Oscillator Phase Dissemination Trunk Network", 《JOURNAL OF LIGHTWAVE TECHNOLOGY》 * |
| 徐刚等: "基于四倍频技术的单边带光载毫米波上变频", 《光学学报》 * |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061779A (en) * | 2019-04-28 | 2019-07-26 | 重庆三峡学院 | A kind of optical fiber telecommunications system |
| WO2021120485A1 (en) * | 2019-12-17 | 2021-06-24 | 上海交通大学 | Passive phase compensation-based optical frequency transfer device and transfer method |
| CN111147149A (en) * | 2019-12-17 | 2020-05-12 | 上海交通大学 | Optical frequency transmission device and transmission method based on passive phase compensation |
| CN111147149B (en) * | 2019-12-17 | 2022-09-02 | 上海交通大学 | Optical frequency transmission device and transmission method based on passive phase compensation |
| US11764876B2 (en) | 2019-12-17 | 2023-09-19 | Shanghai Jiao Tong University | Optical frequency transfer device based on passive phase compensation and transfer method |
| CN111147150A (en) * | 2019-12-18 | 2020-05-12 | 上海交通大学 | Passive phase compensation-based distributed optical frequency transmission device and transmission method |
| CN111147150B (en) * | 2019-12-18 | 2023-02-07 | 上海交通大学 | Distributed optical frequency transmission device and transmission method based on passive phase compensation |
| CN111865421A (en) * | 2020-08-05 | 2020-10-30 | 中国电子科技集团公司第三十四研究所 | Optical fiber phase compensator of high-precision optical fiber interferometer |
| CN111917477A (en) * | 2020-08-12 | 2020-11-10 | 中国电子科技集团公司第四十四研究所 | Distributed optical fiber broadband phase-stable transmission system and method based on ring topology |
| CN111917477B (en) * | 2020-08-12 | 2021-06-01 | 中国电子科技集团公司第四十四研究所 | Distributed optical fiber broadband phase-stable transmission system and method based on ring topology |
| CN111934773B (en) * | 2020-08-12 | 2021-06-08 | 中国电子科技集团公司第四十四研究所 | Distributed optical fiber broadband phase-stable transmission distribution system and method based on loop topology |
| CN111934773A (en) * | 2020-08-12 | 2020-11-13 | 中国电子科技集团公司第四十四研究所 | Distributed optical fiber broadband phase-stable transmission distribution system and method based on loop topology |
| CN112260758A (en) * | 2020-11-03 | 2021-01-22 | 中航光电科技股份有限公司 | Bidirectional homologous phase-coherent microwave optical fiber phase-stable transmission method |
| CN112260758B (en) * | 2020-11-03 | 2021-10-15 | 中航光电科技股份有限公司 | Bidirectional homologous phase-coherent microwave optical fiber phase-stable transmission method |
| CN112260759A (en) * | 2020-11-03 | 2021-01-22 | 中航光电科技股份有限公司 | Two-way homologous phase-coherent microwave optical fiber phase-stable transmission system |
| CN112260759B (en) * | 2020-11-03 | 2022-03-15 | 中航光电科技股份有限公司 | Two-way homologous phase-coherent microwave optical fiber phase-stable transmission system |
| CN112821956A (en) * | 2020-12-29 | 2021-05-18 | 网络通信与安全紫金山实验室 | Terahertz signal generation method and device |
| CN113098622A (en) * | 2021-03-14 | 2021-07-09 | 北京邮电大学 | Frequency transfer device based on bidirectional phase jitter compensation of optical frequency comb |
| CN113098622B (en) * | 2021-03-14 | 2022-01-28 | 北京邮电大学 | Frequency transfer device based on bidirectional phase jitter compensation of optical frequency comb |
| CN114006660A (en) * | 2021-10-29 | 2022-02-01 | 上海交通大学 | Optical frequency transmission device and optical frequency transmission method based on time delay |
| CN114006660B (en) * | 2021-10-29 | 2023-02-10 | 上海交通大学 | Optical frequency transmission device and optical frequency transmission method based on time delay |
| CN114301528A (en) * | 2021-12-03 | 2022-04-08 | 中山大学 | Method and system for suppressing balanced enhanced phase noise in optical fiber communication |
| CN114301528B (en) * | 2021-12-03 | 2023-08-18 | 中山大学 | Method and system for inhibiting balanced enhanced phase noise in optical fiber communication |
| CN114337839A (en) * | 2021-12-30 | 2022-04-12 | 苏州六幺四信息科技有限责任公司 | Universal photoelectric component analysis method |
| CN114844566A (en) * | 2022-04-22 | 2022-08-02 | 中国电子科技集团公司第五十四研究所 | Environment self-adaptive high-precision optical carrier time-frequency transmission device |
| CN114844566B (en) * | 2022-04-22 | 2024-01-05 | 中国电子科技集团公司第五十四研究所 | Environment-adaptive high-precision optical carrier time-frequency transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108282227B (en) | 2020-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108282227A (en) | A kind of steady phase partitioning system in quadruple signal optical fibre arbitrary point based on phase conjugation | |
| CN107247381B (en) | A kind of integrated arbitrary waveform signal generator of silicon substrate | |
| CN107528638B (en) | Broadband microwave signal arrival angle estimation method based on microwave photon filtering | |
| CN104767102B (en) | Optical-electronic oscillator | |
| CN107065390B (en) | Microwave signal generating method and device based on stimulated Brillouin scattering effect and frequency comb | |
| CN109586798B (en) | Photonic generation device capable of tuning multi-output microwave signals | |
| CN102662253B (en) | Double-parallel electro-optic modulator and application method thereof | |
| US20100129088A1 (en) | Optical transmission apparatus | |
| CN110031832A (en) | A kind of microwave photon Doppler shift measurement system and its adjusting method | |
| CN108616311B (en) | Mach-Zehnder type optical filter based frequency measurement device and method | |
| CN103297145A (en) | Device for generating sixteen-frequency multiplication millimeter waves in full light | |
| CN104601240B (en) | System and method for generating millimeter waves based on chalcogenide glass optical fiber four-wave mixing effect | |
| CN105141365A (en) | Device and method for getting delay jitter of optical fiber link | |
| CN108155539B (en) | Wide-range continuously adjustable narrow linewidth photon microwave generator | |
| CN106301576B (en) | A kind of steady phase transmission method of multi-frequency multiple spot microwave optical fiber based on passive phase correction | |
| CN106100748A (en) | Phase-modulator and adjustable chromatic dispersion device is utilized to generate the device and method of microwave waveform | |
| CN109659797A (en) | Optical-electronic oscillator system for optimization of mutually making an uproar | |
| CN104092491B (en) | Optical-electronic oscillator produces the apparatus and method of optical frequency com | |
| CN111010172B (en) | Frequency-tunable frequency-doubling triangular wave and square wave generating device and method | |
| CN111585656A (en) | Frequency multiplication triangular wave generation device and method | |
| CN103780312B (en) | The steady phase transmission method of radiofrequency signal and system | |
| CN103368651A (en) | Double parallel MZ modulator-based method for restraining intermodulation distortion in second harmonic generation system | |
| CN104168063A (en) | Microwave signal optical fiber stationary phase transmission device based on wave length multiplex | |
| CN109085546A (en) | Phased-array radar reception device based on the sampling of photon parameter | |
| CN110098872A (en) | Device and method based on the analog optical link linear optimization that dual wavelength and phase-modulation are converted to intensity modulated |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |