CN104777556A - Piezoelectric ceramic photoelectric link microwave signal true time delay control device - Google Patents
Piezoelectric ceramic photoelectric link microwave signal true time delay control device Download PDFInfo
- Publication number
- CN104777556A CN104777556A CN201510212351.3A CN201510212351A CN104777556A CN 104777556 A CN104777556 A CN 104777556A CN 201510212351 A CN201510212351 A CN 201510212351A CN 104777556 A CN104777556 A CN 104777556A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric ceramics
- piezoelectric ceramic
- time delay
- true time
- microwave signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
-
- 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
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
- H04B10/25758—Optical arrangements for wireless networks between a central unit and a single remote unit by means of an optical fibre
Abstract
A piezoelectric ceramic photoelectric link microwave signal true time delay control device comprises a laser device, an optical modulator, piezoelectric ceramic, an optical fiber ring, a photoelectric detector, a piezoelectric ceramic control circuit and a signal generator, wherein the input end of the optical modulator is connected with the output end of the laser device; the piezoelectric ceramic is a hollow cylinder; the optical fiber ring is tightly wound on the outer surface of the piezoelectric ceramic and comprises an input end and an output end, and the input end of the optical fiber ring is connected with the output end of the optical modulator; the input end of the photoelectric detector is connected with the output end of the optical fiber ring; the control end of the piezoelectric ceramic control circuit is connected with the inner wall and the outer wall of the piezoelectric ceramic; the output end of the signal generator is connected with the control end of the optical modulator. According to the device, the electrostriction effect of the piezoelectric ceramic is used, the piezoelectric ceramic is controlled to retract through a drive circuit, an optical fiber wound on the piezoelectric ceramic is stretched, and an optical signal propagation optical path in the optical fiber is modulated. Furthermore, the phase and the light intensity of light output by the optical fiber and a propagation mode in a link are adjusted.
Description
Technical field
The present invention relates to the true time delay regulation device of microwave signal in a kind of photoelectricity link, be specifically related to the true time delay regulation device of a kind of piezoelectric ceramics photoelectricity link microwave signal, change the jitter error produced with time delay in fine compensation optical signal transmission.
Technical background
When light is propagated in ordinary optic fibre, the impact being subject to external environment (as temperature, humidity, vibration, stress etc.) due to optical fiber can produce the effect such as deformation or variations in refractive index, the light path of the light signal transmitted in optical fiber will change thereupon, produce shake.This mode stability that will directly affect in the quality of light signal in transmitting procedure and some optical circuits.Especially to some such as light time services, light carrier radio communication (ROF) etc. are in the very high system of link phase stability, and the shake of optical fiber often exceeds the tolerance of system, makes system performance degradation, cannot adapt to the requirement of long-term stable operation.In basic device photoelectric oscillator in microwave current photonics, the shake due to link makes pattern in link unstable, exports microwave and there is frequent frequency hopping phenomenon, cannot long-term stable operation.In ROF system, signal transmission distance be subject to especially phase noise impact and cannot long-distance transmissions.Therefore, the change in optical path length problem caused due to optical fiber shakiness is solved, in the urgent need to optical path modulation means to solve the high-precision requirement to light path in optical signal transmission process.
Summary of the invention
The object of this invention is to provide the true time delay regulation device of a kind of piezoelectric ceramics photoelectricity link microwave signal, it is the electrostrictive effect utilizing piezoelectric ceramics, control it by driving circuit to stretch, the optical fiber be wound around thereon is stretched, the lightray propagation light path in modulation optical fiber.Further, optical fiber is exported to the phase place of light, light intensity, the pattern propagated in link etc. are regulated.
The invention provides the true time delay regulation device of a kind of piezoelectric ceramics photoelectricity link microwave signal, comprising:
One laser instrument;
One photomodulator, its input end is connected with the output terminal of laser instrument;
One piezoelectric ceramics, this piezoelectric ceramics is the right cylinder of hollow;
One fiber optic loop, it is closely wrapped in the outside surface of piezoelectric ceramics, and this fiber optic loop comprises an input end and an output terminal, and its input end is connected with the output terminal of photomodulator;
One photodetector, its input end is connected with the output terminal of fiber optic loop;
One piezoelectric ceramics control circuit, its control end is connected with the inside and outside wall of piezoelectric ceramics.
One signal generator, its output terminal is connected with the control end of photomodulator.
The invention has the beneficial effects as follows:
Piezoelectric ceramics controls by external drive circuit, produces flexible, thus produces stretching or blockage effect to the optical fiber be wound around thereon, and then change the light path of wherein transmission light, reach the object of the true time delay of regulation and control photoelectricity link microwave signal.External drive circuit also can analyze the change of the electric signal (or through electric signal that later stage system modulation is crossed) exported from photodetector, analyzes and should stretch or systolic pressure electroceramics.Thus formation optical circuit carries out feedback regulation.
Accompanying drawing explanation
For further illustrating concrete technology contents of the present invention, be described in detail as follows below in conjunction with embodiment and accompanying drawing, wherein:
Fig. 1 is structural representation of the present invention.
Embodiment
Refer to shown in Fig. 1, the invention provides the true time delay regulation device of a kind of piezoelectric ceramics photoelectricity link microwave signal, comprising:
One laser instrument 1, produces laser.
One photomodulator 2, its input end is connected with the output terminal of laser instrument 1; The electric signal that signal generator 7 produces is loaded on the light wave of transmission in photomodulator 2.
One piezoelectric ceramics 3, this piezoelectric ceramics 3 is the right cylinder of hollow.Under the voltage effect that piezoelectric ceramics controller 6 exports, piezoelectric ceramics 3 expands or shrinks, and then regulates fiber optic loop diameter to increase or reduce.
One fiber optic loop 4, it is closely wrapped in the outside surface of piezoelectric ceramics 3, this fiber optic loop 4 comprises an input end and an output terminal, its input end is connected with the output terminal of photomodulator 2, described fiber optic loop 4 is fixed on piezoelectric ceramics surface by winding bonding or mechanical system, along with expansion or the contraction of piezoelectric ceramics 3, its diameter changes, thus reaches the effect of the light path of wherein transmission light.Through the light input photodetector 5 of regulation and control.
One photodetector 5, its input end is connected with the output terminal of fiber optic loop 4.Here, the light signal transmitted by fiber optic loop is converted to electric signal to export.
One piezoelectric ceramics control circuit 6, its control end is connected with the inside and outside wall of piezoelectric ceramics 3, described piezoelectric ceramics control circuit 6 is connected by wire with piezoelectric ceramics 3, and described piezoelectric ceramics control circuit 6 is stable output forward and reverse Control of Voltage piezoelectric ceramics or controls piezoelectric ceramics after analyzing outside input electrical signal.
One signal generator 7, its output terminal is connected by cable with the control end of photomodulator 2.For photomodulator 2 provides electric signal.
Wherein said laser instrument 1, photomodulator 2, fiber optic loop 4 and photodetector 5 pass through Fiber connection.
In photoelectricity link, the change of the optical path length of link can cause the change of the competitive mode in link, thus the final frequency exporting electric signal of impact.The true time delay regulation device of this piezoelectric ceramics photoelectricity link microwave signal, by the change of piezoelectric ceramics radical length, realize the change to fiber lengths wound on it, and then achieve the length adjustment to light path in link, reach the object of the true time delay of regulation and control photoelectricity link microwave signal.
Further, the variation of the electric signal exported in photodetector 5 is analyzed, determine its variation and the relation of light time delay, fed back to piezoelectric ceramics control circuit 6, the feedback regulation of detector output signal can be realized.
Further, by the electric signal of output in photodetector 5 through electric amplifier, the devices such as electrical filter regulate, and transfer to photomodulator 2, replace the light wave in signal generator 7 pairs of photomodulators 2 to modulate, then form a photoelectricity closed circuit.Now, the diameter of adjustment fiber optic loop can realize the adjustment to loop-length, and then realizes the model selection in loop.Obtain the light wave or electric wave of wishing.In conjunction with feedback regulation mentioned above, the stable output of light wave or electric wave can be realized.
In addition, the above-mentioned definition to each element and method is not limited in various concrete structures, shape or the mode mentioned in embodiment, those of ordinary skill in the art can replace its structure with knowing simply, as: the electric signal exported through photodetector 5 can be connected to form feedback regulation through process and piezoelectric ceramics control circuit 6.Further, appended accompanying drawing simplified and illustratively used.Device number of packages amount, shape and size shown in accompanying drawing can be modified according to actual conditions, and the configuration of device may be more complicated.
The embodiment of the above is better embodiment of the present invention; and non-once limits specific embodiment of the invention scope; scope of the present invention comprises and is not limited to this embodiment, and all equivalence changes done according to shape of the present invention, structure are all in protection scope of the present invention.
Claims (6)
1. the true time delay regulation device of piezoelectric ceramics photoelectricity link microwave signal, comprising:
One laser instrument;
One photomodulator, its input end is connected with the output terminal of laser instrument;
One piezoelectric ceramics, this piezoelectric ceramics is the right cylinder of hollow;
One fiber optic loop, it is closely wrapped in the outside surface of piezoelectric ceramics, and this fiber optic loop comprises an input end and an output terminal, and its input end is connected with the output terminal of photomodulator;
One photodetector, its input end is connected with the output terminal of fiber optic loop;
One piezoelectric ceramics control circuit, its control end is connected with the inside and outside wall of piezoelectric ceramics.
-signal generator, its output terminal is connected with the control end of photomodulator.
2. the true time delay regulation device of piezoelectric ceramics photoelectricity link microwave signal according to claim 1, wherein said laser instrument, photomodulator fiber optic loop and photodetector pass through Fiber connection.
3. the true time delay regulation device of piezoelectric ceramics photoelectricity link microwave signal according to claim 1, wherein said piezoelectric ceramics control circuit is connected by wire with piezoelectric ceramics, and signal generator is connected by cable with photomodulator.
4. the true time delay regulation device of piezoelectric ceramics photoelectricity link microwave signal according to claim 1, wherein fiber optic loop is fixed on piezoelectric ceramics surface by winding bonding or mechanical system.
5. the true time delay regulation device of piezoelectric ceramics photoelectricity link microwave signal according to claim 1, wherein piezoelectric ceramics control circuit is stable output forward and reverse Control of Voltage piezoelectric ceramics or controls piezoelectric ceramics after analyzing outside input electrical signal.
6. the true time delay regulation device of piezoelectric ceramics photoelectricity link microwave signal according to claim 1, the electric signal of wherein signal generator generation, is loaded on light wave by photomodulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510212351.3A CN104777556A (en) | 2015-04-29 | 2015-04-29 | Piezoelectric ceramic photoelectric link microwave signal true time delay control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510212351.3A CN104777556A (en) | 2015-04-29 | 2015-04-29 | Piezoelectric ceramic photoelectric link microwave signal true time delay control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104777556A true CN104777556A (en) | 2015-07-15 |
Family
ID=53619129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510212351.3A Pending CN104777556A (en) | 2015-04-29 | 2015-04-29 | Piezoelectric ceramic photoelectric link microwave signal true time delay control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104777556A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301699A (en) * | 2015-11-27 | 2016-02-03 | 北京信息科技大学 | Fiber time delaying device |
| CN107247346A (en) * | 2017-07-26 | 2017-10-13 | 东北林业大学 | Light intensity modulator based on optical resonator |
| CN108508594A (en) * | 2018-06-08 | 2018-09-07 | 中国人民解放军国防科技大学 | High resonant frequency optical fiber phase modulator based on piezoelectric ceramics |
| CN110119041A (en) * | 2018-02-07 | 2019-08-13 | 桂林电子科技大学 | Piezoelectric ceramics microarray polarization type optical fiber acousto-optic device |
| CN110119043A (en) * | 2018-02-07 | 2019-08-13 | 桂林电子科技大学 | Fiber polarization controller based on cross-polarization type piezoelectric ceramics microarray |
| CN113203406A (en) * | 2021-04-29 | 2021-08-03 | 长安大学 | Device and method for inhibiting deformation of optical fiber gyroscope ring assembly in acceleration field |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6195195B1 (en) * | 1999-03-11 | 2001-02-27 | Lockheed Martin Corporation | Opto-mechanical controlled variable RF/microwave delay element and method |
| CN1499229A (en) * | 2002-11-11 | 2004-05-26 | 华为技术有限公司 | Variable birefringence cell and dispersion compensator in polarization mode |
| JP2008244369A (en) * | 2007-03-29 | 2008-10-09 | Tohoku Univ | Super-high precision photonic phase synchronous system |
| CN201550128U (en) * | 2009-11-10 | 2010-08-11 | 陕西理工学院 | Real time compensation phase differential interference device |
| CN103929250A (en) * | 2014-04-28 | 2014-07-16 | 中国电子科技集团公司第三十四研究所 | Optical fiber phase compensator and use method thereof |
| CN103983209A (en) * | 2014-05-22 | 2014-08-13 | 天津大学 | Fringe phase stabilizing method for three-dimensional shape measurement of optical fiber interference fringe projection |
-
2015
- 2015-04-29 CN CN201510212351.3A patent/CN104777556A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6195195B1 (en) * | 1999-03-11 | 2001-02-27 | Lockheed Martin Corporation | Opto-mechanical controlled variable RF/microwave delay element and method |
| CN1499229A (en) * | 2002-11-11 | 2004-05-26 | 华为技术有限公司 | Variable birefringence cell and dispersion compensator in polarization mode |
| JP2008244369A (en) * | 2007-03-29 | 2008-10-09 | Tohoku Univ | Super-high precision photonic phase synchronous system |
| CN201550128U (en) * | 2009-11-10 | 2010-08-11 | 陕西理工学院 | Real time compensation phase differential interference device |
| CN103929250A (en) * | 2014-04-28 | 2014-07-16 | 中国电子科技集团公司第三十四研究所 | Optical fiber phase compensator and use method thereof |
| CN103983209A (en) * | 2014-05-22 | 2014-08-13 | 天津大学 | Fringe phase stabilizing method for three-dimensional shape measurement of optical fiber interference fringe projection |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301699A (en) * | 2015-11-27 | 2016-02-03 | 北京信息科技大学 | Fiber time delaying device |
| CN105301699B (en) * | 2015-11-27 | 2018-07-20 | 北京信息科技大学 | Fiber delay time device |
| CN107247346A (en) * | 2017-07-26 | 2017-10-13 | 东北林业大学 | Light intensity modulator based on optical resonator |
| CN107247346B (en) * | 2017-07-26 | 2019-05-21 | 东北林业大学 | Light intensity modulator based on optical resonator |
| CN110119041A (en) * | 2018-02-07 | 2019-08-13 | 桂林电子科技大学 | Piezoelectric ceramics microarray polarization type optical fiber acousto-optic device |
| CN110119043A (en) * | 2018-02-07 | 2019-08-13 | 桂林电子科技大学 | Fiber polarization controller based on cross-polarization type piezoelectric ceramics microarray |
| CN108508594A (en) * | 2018-06-08 | 2018-09-07 | 中国人民解放军国防科技大学 | High resonant frequency optical fiber phase modulator based on piezoelectric ceramics |
| CN113203406A (en) * | 2021-04-29 | 2021-08-03 | 长安大学 | Device and method for inhibiting deformation of optical fiber gyroscope ring assembly in acceleration field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104777556A (en) | Piezoelectric ceramic photoelectric link microwave signal true time delay control device | |
| CN102368582B (en) | Laser wavelength adjustment-based opto-electronic oscillator with tunable frequency and broadband | |
| CN103929250A (en) | Optical fiber phase compensator and use method thereof | |
| CN107863676A (en) | Soliton crystal frequency comb generation system and method based on micro-ring resonant cavity | |
| US20180083414A1 (en) | Mode-locked and wavelength tunable optical frequency comb generation through dynamic control of microresonators | |
| CN103401141A (en) | Direct modulation distributed feedback semiconductor laser-based photoelectric oscillator | |
| CN104143757B (en) | Tunable wave length narrow linewidth light source based on distributed Bragg reflection laser | |
| CN102545007B (en) | Tunable laser and method for locking and monitoring wavelength of tunable laser | |
| CN105591273A (en) | Pulse optical fiber laser and method for realizing time domain pulse slicing by using the same | |
| KR20150001076A (en) | Wavelength swept source apparatus and controlling method thereof | |
| CN103152105B (en) | A kind of Sweep Source based on single-side band modulation and circulating frequency shift | |
| EP3161976A1 (en) | Directly modulated laser with dispersion compensation | |
| CN110707509A (en) | Fourier domain mode-locked optoelectronic oscillator | |
| JP5502767B2 (en) | Light source device, optical signal generator, and electrical signal generator | |
| TW201501483A (en) | Wavelength adjustable transmitter and optical network unit applicable to time-and-wave-division multiplexing passive optical network (TWDM-PON) | |
| KR100350320B1 (en) | Method and Apparatus for Removing Non-Linear Distortion in a Optic Transmitter | |
| CN104954076A (en) | Optical transceiver | |
| CN104051934A (en) | Optoelectronic oscillator and method based on electrical loop filtering | |
| TWI420734B (en) | Resonator system | |
| CN110707510A (en) | Fourier domain mode-locked photoelectric oscillator based on stimulated Brillouin scattering | |
| CN203773204U (en) | Self-pulse generator based on erbium-doped fiber grating | |
| CN107706707B (en) | Low noise acousto-optic multifrequency tunable oscillator | |
| CN1162723C (en) | Fiber grating packaging device | |
| JP5394412B2 (en) | Optical signal output device, electrical signal output device, and test device | |
| CN207338897U (en) | A kind of Wavelength stabilized semiconductor laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150715 |
|
| RJ01 | Rejection of invention patent application after publication |