CN104202093A - Orthogonal and phase correlation light carrier based photonic microwave frequency mixing device - Google Patents
Orthogonal and phase correlation light carrier based photonic microwave frequency mixing device Download PDFInfo
- Publication number
- CN104202093A CN104202093A CN201410468739.5A CN201410468739A CN104202093A CN 104202093 A CN104202093 A CN 104202093A CN 201410468739 A CN201410468739 A CN 201410468739A CN 104202093 A CN104202093 A CN 104202093A
- Authority
- CN
- China
- Prior art keywords
- light
- light carrier
- polarization
- carrier
- microwave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Optical Communication System (AREA)
Abstract
The invention discloses a photonic microwave frequency mixing device. The photonic microwave frequency mixing device comprises an orthogonal and phase correlation light carrier generator, a polarization sensitive photoelectric modulator, a polarization beam splitter and a photoelectric detector; the orthogonal and phase correlation light carrier generator is used for providing orthogonal and phase correlation light carriers of two kinds; the polarization sensitive photoelectric modulator is used for receiving the light carriers, enabling the polarization direction of the first kind of light carrier to align to the main modulation axis direction thereof and enabling the polarization direction of the second kind of light carrier to be perpendicular to the main modulation axis direction thereof; the polarization sensitive photoelectric modulator further loads I-channel base-band electric signals and Q-channel base-band electric signals to realize optical-domain frequency mixing for the first kind of light carrier; the polarization beam splitter is used for filtering out and outputting energy components, in the same direction, of the first kind of light carrier and the second kind of light carrier in the orthogonal direction; the photoelectric detector is used for receiving the light carriers outputted from the polarization beam splitter, converting difference frequency components of the first kind of light carrier and the second kind of light carrier into microwave signals and outputting the microwave signals.
Description
Technical field
The invention belongs to Microwave photonics and optical communication technique field, say more specifically a kind of photonic propulsion microwave mixer device based on quadrature and phase place relative photo carrier wave.
Background technology
Abundantization of multimedia service causes the tight demand of people to the access rate of following light and cordless communication network.And the natural low damage characteristic in broadband of optical fiber becomes splendid physical media in access network.In order to make full use of the bandwidth of its superelevation, the modulation of the format modulation signal of high spectrum utilization on light territory and demodulation problem become the focus that educational circles and industrial quarters are paid close attention to.Can only induction light strength information due to photodetector, the phase information of this type of high order scheme signal can not and be converted to the signal of telecommunication by direct detection.At present, coherent detection becomes the only resource of head it off.In the detection method of the type, a branch of stable continuous light that does not carry any information is injected in photodetector as the flashlight of local oscillator light and carry information simultaneously.Through opto-electronic conversion, the former information being loaded on flashlight, will be down-converted to radio frequency or fundamental frequency frequency range, and then carry out the digital demodulation of high order modulation form.When flashlight and local oscillator light are difference on the frequency when non-vanishing, we are referred to as " heterodyne detection ".Otherwise we are referred to as " zero-difference detection ".The former is regarded as can be at light-carried wireless electric system, and extensive use in the passive net of coherent light.Yet the greatest problem of coherent detection mode derives from the random fluctuation of phase place between flashlight and local oscillator light.This fluctuating will cause great phase noise to be present among signal to be demodulated.At present, have two kinds of approach to alleviate this problem: the first, the extremely narrow laser of application live width reduces noise as light source; The second, in demodulating process, the phase estimation algorithm relying on based on Digital Signal Processing carries out phase compensation.Yet, high cost and power consumption, and limited performance optimization makes these class methods be difficult to be widely used in following access network.And the central topic thoroughly addressing this problem is: how, in signal optical mixing process, avoid the phase correlation of flashlight and local oscillator light signal to remain intact.
In sum, in order to solve the above-mentioned technical bottleneck facing, build ubiquitous, low-power consumption, high performance light and Radio Access Network, at present in the urgent need to a kind of photonic propulsion microwave mixer of realizing phase stabilization output.
Summary of the invention
The present invention will solve the problem of the light phase random fluctuation of existing photonic propulsion microwave mixer device.
The invention discloses a kind of photonic propulsion microwave mixer device, comprising:
Quadrature and phase place relative photo carrier generator, for providing two kinds of light carriers that quadrature and phase place are relevant;
Polarization-Sensitive type electrooptic modulator, it receives described two kinds of light carriers, is alignd with its modulation major axes orientation in the polarization direction of described the first light carrier, makes the polarization direction of described the second light carrier vertical with its modulation major axes orientation; It also loads I roadbed charged signal and Q roadbed charged signal, realizes the light territory mixing to the first light carrier;
Polarization beam apparatus, it is for leaching the first light carrier in orthogonal direction and the second light carrier export in unidirectional energy component
Photodetector, it is for receiving two kinds of light carriers from polarization beam apparatus output, and is microwave signal output by the difference frequency composition conversion of light carrier in the first light carrier and second.
From technique scheme, can find out, the present invention has following beneficial effect:
This photonic propulsion microwave mixer device based on quadrature and phase place relative photo carrier wave can thoroughly be avoided the problem of the phase place random fluctuation of local oscillator light and flashlight, and then avoid the application in light and wireless access network of expensive narrow linewidth laser and complicated Digital Signal Processing, significantly reduce the cost of Access Network light and rf receiver unit.
Accompanying drawing explanation
Fig. 1 is the photonic propulsion microwave mixer apparatus structure schematic diagram based on quadrature and phase place relative photo carrier wave in the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in further detail.
Refer to shown in Fig. 1, a kind of photonic propulsion microwave mixer device based on quadrature and phase place relative photo carrier wave, comprising:
One quadrature and phase place relative photo carrier generator a, for two kinds of light carriers that quadrature and phase place are relevant are provided, its wavelength is respectively λ
1and λ
2, its polarized orthogonal, its phase place is relevant, and its frequency interval is f, and wavelength is λ
1light carrier be flashlight, wavelength is λ
2light carrier be local oscillator reference light;
One polarized controller b, protects and is partially connected with the output of quadrature and phase place relative photo carrier generator a, for controlling the quadrature of output and the polarization direction of phase place relative photo carrier wave of quadrature and phase place relative photo carrier generator a.
One Polarization-Sensitive type electrooptic modulator c, it can be two balance mach zhender electrooptic modulators, also pilot tone type vector electrooptic modulator, its light input end mouth 1 is protected and is partially connected with the output of polarized controller b, to guarantee when light carrier enters Polarization-Sensitive type electrooptic modulator c, align with the modulation major axes orientation of Polarization-Sensitive type electrooptic modulator c in flashlight polarization direction, and local oscillator reference light is vertical with the modulation major axes orientation of Polarization-Sensitive type electrooptic modulator c; The electric input port 3,4 of Polarization-Sensitive type electrooptic modulator c is respectively used to load I roadbed charged signal and Q roadbed charged signal, thereby only realize, to wavelength, is the light territory mixing of the flashlight of λ 1;
One optical axis and polarization maintaining optical fibre slow axis angle are the polarization beam apparatus d of 45 degree, its input is protected and is partially connected with the optical output port 2 of Polarization-Sensitive type electrooptic modulator c, for the flashlight in orthogonal direction and local oscillator reference light are leached in unidirectional energy component;
One high bandwidth photodetector e, its light input end is connected with the output that optical axis and polarization maintaining optical fibre slow axis angle are the light polarizer d of 45 degree, being used for the flashlight of polarization beam apparatus d output and the difference frequency composition conversion of local oscillator reference light is microwave signal, the frequency of this microwave signal equates with the frequency interval of flashlight and local oscillator reference light, and its electric output port is for exporting by the microwave signal of mixing;
Regulate the bias voltage of Polarization-Sensitive type electrooptic modulator c, can realize the conversion of format modulation signal.When polarization voltage is placed in transmission smallest point, can realize phase shift keying modulation, reduce or boosted voltage, can realize amplitude shift keying and on-off keying modulation, when bias voltage is placed in linear zone, can realize the up-conversion of orthogonal frequency-division multiplex base band signal.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a photonic propulsion microwave mixer device, comprising:
Quadrature and phase place relative photo carrier generator, for providing two kinds of light carriers that quadrature and phase place are relevant;
Polarization-Sensitive type electrooptic modulator, it receives described two kinds of light carriers, is alignd with its modulation major axes orientation in the polarization direction of described the first light carrier, makes the polarization direction of described the second light carrier vertical with its modulation major axes orientation; It also loads I roadbed charged signal and Q roadbed charged signal, realizes the light territory mixing to the first light carrier;
Polarization beam apparatus, it is for leaching the first light carrier in orthogonal direction and the second light carrier export in unidirectional energy component
Photodetector, it is for receiving two kinds of light carriers from polarization beam apparatus output, and is microwave signal output by the difference frequency composition conversion of light carrier in the first light carrier and second.
2. photonic propulsion microwave mixer device according to claim 1, wherein said Polarization-Sensitive type electrooptic modulator can be two balance mach zhender electrooptic modulators, can be also pilot tone type vector electrooptic modulator.
3. photonic propulsion microwave mixer device according to claim 1, wherein, by regulating the bias voltage of Polarization-Sensitive type electrooptic modulator, realizes the conversion of format modulation signal.
4. photonic propulsion microwave mixer device according to claim 1, wherein, the optical axis of the described smooth polarizer and polarization maintaining optical fibre slow axis angle are 45 degree.
5. photonic propulsion microwave mixer device according to claim 1, wherein, described the first light carrier is flashlight, described the second light carrier is local oscillator reference light.
6. photonic propulsion microwave mixer device according to claim 1, wherein, described the first light carrier is different with the wavelength of light carrier in second, and frequency interval is identical with the frequency of described microwave signal.
7. photonic propulsion microwave mixer device according to claim 1, it also comprises: Polarization Controller, for controlling the polarization direction of two kinds of light carriers of described light carrier generator output, and exports Polarization-Sensitive type electrooptic modulator to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468739.5A CN104202093A (en) | 2014-09-15 | 2014-09-15 | Orthogonal and phase correlation light carrier based photonic microwave frequency mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468739.5A CN104202093A (en) | 2014-09-15 | 2014-09-15 | Orthogonal and phase correlation light carrier based photonic microwave frequency mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104202093A true CN104202093A (en) | 2014-12-10 |
Family
ID=52087332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410468739.5A Pending CN104202093A (en) | 2014-09-15 | 2014-09-15 | Orthogonal and phase correlation light carrier based photonic microwave frequency mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104202093A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915290A (en) * | 2016-04-15 | 2016-08-31 | 西南交通大学 | Soft-filtering-based ultra-intensive channel type radio-on-fiber access method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629855A (en) * | 2008-07-18 | 2010-01-20 | 派克森公司 | Distributed optical fiber sensing system and detection method utilizing same |
| CN101834670A (en) * | 2010-04-21 | 2010-09-15 | 暨南大学 | High linear response microwave photon signal modulation and demodulation device |
| CN101888274A (en) * | 2009-05-14 | 2010-11-17 | 华为技术有限公司 | Feedback control method, device and system of coherent receiver |
| CN102004364A (en) * | 2009-09-01 | 2011-04-06 | 上海伟钊光学科技有限公司 | Demodulation mode for realizing coherent light receiving |
| CN102132206A (en) * | 2008-08-22 | 2011-07-20 | 波音公司 | Electro-optical modulator having bias electrodes based on doped-semiconductor-metal contact for mitigating DC bias drift |
| CN102142901A (en) * | 2011-01-21 | 2011-08-03 | 武汉邮电科学研究院 | Coherent demodulation method with no need of control on polarization state of local oscillation light |
| JP2012004691A (en) * | 2010-06-14 | 2012-01-05 | Nippon Telegr & Teleph Corp <Ntt> | Polarized multiplex optical transmission system |
| CN102393569A (en) * | 2011-11-25 | 2012-03-28 | 中国科学院上海光学精密机械研究所 | Polarized optical scanner |
| CN102435996A (en) * | 2011-12-02 | 2012-05-02 | 中国科学院上海光学精密机械研究所 | Orthoptic synthetic aperture laser imaging radar |
| CN102638302A (en) * | 2012-03-20 | 2012-08-15 | 北京邮电大学 | Coherent light frequency comb based channelized broadband multi-frequency measuring system |
| CN102680960A (en) * | 2012-05-10 | 2012-09-19 | 浙江大学 | High-precision ranging and verifying system and method |
| CN103532632A (en) * | 2013-09-22 | 2014-01-22 | 西南交通大学 | Tunable microwave pulse signal precise generation method and device by adopting polarization quadrature modulation |
-
2014
- 2014-09-15 CN CN201410468739.5A patent/CN104202093A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629855A (en) * | 2008-07-18 | 2010-01-20 | 派克森公司 | Distributed optical fiber sensing system and detection method utilizing same |
| CN102132206A (en) * | 2008-08-22 | 2011-07-20 | 波音公司 | Electro-optical modulator having bias electrodes based on doped-semiconductor-metal contact for mitigating DC bias drift |
| CN101888274A (en) * | 2009-05-14 | 2010-11-17 | 华为技术有限公司 | Feedback control method, device and system of coherent receiver |
| CN102004364A (en) * | 2009-09-01 | 2011-04-06 | 上海伟钊光学科技有限公司 | Demodulation mode for realizing coherent light receiving |
| CN101834670A (en) * | 2010-04-21 | 2010-09-15 | 暨南大学 | High linear response microwave photon signal modulation and demodulation device |
| JP2012004691A (en) * | 2010-06-14 | 2012-01-05 | Nippon Telegr & Teleph Corp <Ntt> | Polarized multiplex optical transmission system |
| CN102142901A (en) * | 2011-01-21 | 2011-08-03 | 武汉邮电科学研究院 | Coherent demodulation method with no need of control on polarization state of local oscillation light |
| CN102393569A (en) * | 2011-11-25 | 2012-03-28 | 中国科学院上海光学精密机械研究所 | Polarized optical scanner |
| CN102435996A (en) * | 2011-12-02 | 2012-05-02 | 中国科学院上海光学精密机械研究所 | Orthoptic synthetic aperture laser imaging radar |
| CN102638302A (en) * | 2012-03-20 | 2012-08-15 | 北京邮电大学 | Coherent light frequency comb based channelized broadband multi-frequency measuring system |
| CN102680960A (en) * | 2012-05-10 | 2012-09-19 | 浙江大学 | High-precision ranging and verifying system and method |
| CN103532632A (en) * | 2013-09-22 | 2014-01-22 | 西南交通大学 | Tunable microwave pulse signal precise generation method and device by adopting polarization quadrature modulation |
Non-Patent Citations (2)
| Title |
|---|
| JIANYU ZHENG ET AL: "Photonic microwave-signal-mixing technique using phase-coherent orthogonal optical carriers for radio-over-fiber application", 《OPTICS LETTERS》 * |
| 游首先、钟库 主编，《兵器工业科学技术辞典》编辑委员会编: "《兵器工业科学技术辞典•光学工程》", 31 May 1993 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915290A (en) * | 2016-04-15 | 2016-08-31 | 西南交通大学 | Soft-filtering-based ultra-intensive channel type radio-on-fiber access method |
| CN105915290B (en) * | 2016-04-15 | 2018-05-22 | 西南交通大学 | A kind of super-intensive channel-type light-carried wireless cut-in method based on soft filtering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Amiri et al. | W-Band OFDM transmission for radio-over-fiber link using solitonic millimeter wave generated by MRR | |
| CN107340666B (en) | A kind of vector signal means of upconversion based on optical-electronic oscillator | |
| Zhang et al. | A novel radio-over-fiber system based on carrier suppressed frequency eightfold millimeter wave generation | |
| CN103414516B (en) | Based on two-way wire/wireless mixed light cut-in method and the system of same/heterodyne detection | |
| CN103124208B (en) | A kind of multiple-input and multiple-output MIMO light transmission scheme based on multi-polarization state | |
| TW201017245A (en) | Light-modulating apparatus | |
| Wang et al. | Balanced precoding technique for vector signal generation based on OCS | |
| CN108631870A (en) | A kind of microwave homogenous frequency signal AF panel and down coversion reception device and method | |
| CN104218992B (en) | Homodyne detection type coherent light transmission system | |
| CN103684613A (en) | Photonic microwave frequency mixing method and device | |
| Li et al. | Millimeter-wave vector signal generation based on a bi-directional use of a polarization modulator in a Sagnac loop | |
| Chen et al. | Optical millimeter-wave generation with tunable multiplication factors and reduced power fluctuation by using cascaded modulators | |
| CN104483657A (en) | Spatial directional angle measuring system based on all-optical cross polarization modulation | |
| Li et al. | D-band signal generation and transmission without optical filter based on optical carrier suppression and single-sideband modulation | |
| CN106877934B (en) | Carrier suppression mode radio-on-fiber vector wave system based on phase factor optimization | |
| CN103067331A (en) | Quadrature amplitude modulation (QAM) light vector signal production and distance heterodyne detection device | |
| Ma et al. | Carrier-frequency-doubled photonic microwave vector signal generation based on PDM-MZM | |
| CN204967822U (en) | Free space optical communications is tunable to be bare coherent detection OFDM device | |
| Kumar et al. | Effect of signal direct detection on sub-carrier multiplexed radio over fiber system | |
| CN104202093A (en) | Orthogonal and phase correlation light carrier based photonic microwave frequency mixing device | |
| Zhou et al. | Microwave photonic mixer based on polarization rotation and polarization-dependent modulation | |
| CN103051384A (en) | QAM (Quadrature Amplitude Modulation) optical vector signal generation and homodyne demodulation device | |
| Zhang et al. | Precoding research on vector signal 16QAM applied in the frequency doubling scheme of ROF link | |
| CN208508952U (en) | One type dispersion decreasing fiber forward pass system | |
| He et al. | Low-cost bidirectional hybrid fiber-visible laser light communication system based on carrier-less amplitude phase modulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |
|
| WD01 | Invention patent application deemed withdrawn after publication |