CN102013924A - Device and method for generating frequency doubling single side band optical carrier millimeter waves - Google Patents
Device and method for generating frequency doubling single side band optical carrier millimeter waves Download PDFInfo
- Publication number
- CN102013924A CN102013924A CN2010105591014A CN201010559101A CN102013924A CN 102013924 A CN102013924 A CN 102013924A CN 2010105591014 A CN2010105591014 A CN 2010105591014A CN 201010559101 A CN201010559101 A CN 201010559101A CN 102013924 A CN102013924 A CN 102013924A
- Authority
- CN
- China
- Prior art keywords
- sub
- modulator
- frequency
- sideband
- light
- 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
Images
Abstract
The invention discloses a device and a method for generating frequency doubling single side band optical carrier millimeter waves in the field of optical communication. The device comprises an adjustable optical source, a radio frequency signal source, an electric amplifier, an electric shunt, a phase shifter and a nested Mach-Zehnder modulator, wherein the output end of the adjustable optical source is connected with the optical input end of the nested Mach-Zehnder modulator; the output end of the radio frequency signal source is connected with the input end of the electric amplifier; the output end of the electric amplifier is connected with the input end of the electric shunt; two output ports of the electric shunt are connected with a radio-frequency driving port of an upper arm sub-modulator of the nested Mach-Zehnder modulator and an input port of the phase shifter respectively; and the output end of the phase shifter is connected with a radio-frequency driving port of a lower arm sub-modulator of the nested Mach-Zehnder modulator. The method comprises the steps of: regulating the phase shift amount of the phase shifter, and arranging the main bias voltage of the nested Mach-Zehnder modulator and the bias voltage of the upper arm and lower arm sub-modulators reasonably. By the device and the method, a structure of a system is simplified, and the tenability and expansibility of the system are improved.
Description
Technical field
The present invention relates to optical communication field, relate in particular to a kind of apparatus and method that the monolateral band light of double frequency carries millimeter wave that produce.
Background technology
Optical fiber-wireless communication technology adopts optical fiber link to transmit radio signal, super bandwidth, the high reliability of characteristic such as removable, the point-to-multipoint access of broadband wireless communications and optical fiber communication are combined, provide desirable solution for big capacity, radio signal wire transmission cheaply and the super wideband wireless that surpasses Gbit/s insert.For optical-fiber wireless system, producing high-quality light, to carry millimeter wave be one of key technology that realizes system communication.In recent years, the researcher has proposed many light and has carried millimeter wave generation scheme both at home and abroad, comprises that double-side band light carries millimeter wave, and monolateral band light carries millimeter wave, and carrier suppressed light carries millimeter wave.Monolateral band light wherein carries millimeter wave owing to can overcome the optical fiber dispersion influence effectively, has tangible technical advantage.
But, carry in the millimeter wave generating method at present monolateral band light, generally only can produce the monolateral band light that equates with frequency modulating signal carries millimeter wave.If the light that will produce such as higher frequencies such as 60GHz, 100GHz carries millimeter-wave signal, then need the High Speed Modulation device of 60GHz even 100GHz.Because the restriction of prior art, these devices are not commercial as yet, even if commercialization, the cost of its system is very expensive.Therefore, carry millimeter-wave signal, will improve the generation efficient that light carries millimeter wave effectively, reduce system cost if can utilize the commercial modulation device of traditional low rate to produce high-frequency monolateral band light based on the method for double frequency.
Find through literature search prior art, people such as Jianjun Yu are at IEEE Photonics Technology Letters, 20 (7): mention among the ANovel Scheme to Generate Single-Sideband Millimeter-Wave Signals by Using Low-Frequency Local Oscillator Signal that delivers on the 478-480 (" IEEE photonic propulsion technology wall bulletin " 2008) (" adopting the low frequency local oscillation signal to produce the New Scheme that monolateral band light carries millimeter wave "), at first use the Mach-Zehnder modulators of bipolar electrode to produce to comprise on centered carrier and the second order/the optics double-sideband signal of lower sideband, adopt one of them second order sideband of tunable optic filter filtering again, make centered carrier and another one second order sideband by filter, thereby produce the monolateral band light carrier millimeter wave of double frequency.Yet the optics external devices that this device adopts is more, causes the insertion loss of whole system bigger.On the other hand, because this device comes one of them second order sideband of filtering by optical band pass filter, the centre wavelength of this optical band pass filter and the scope of band connection frequency must be regulated according to the centre frequency of light carrier and the variation of frequency modulating signal, the tunability of whole device is relatively poor, especially is not easy to extend to wavelength-division multiplex system.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, proposed the monolateral band light of a kind of tunable double frequency simple in structure, that autgmentability is strong and carried millimeter wave generating device and method.The present invention adopts the Mach-Zehnder modulators of a nested structure, linear modulation and interference superimposing technique based on light signal, by regulating the phase-shift phase of phase shifter, main bias voltage by nested Mach-Zehnder modulators rationally is set and on/bias voltages of two son modulation of underarm, thereby produce 2 times of monolateral band optical millimeter waves of the double frequency to frequency modulating signal, reduced the cost of system.
The present invention adopts following concrete technical scheme to realize:
The monolateral band light of double frequency that the present invention proposes carries millimeter wave generating device and comprises tunable light source, radio-frequency signal source, electric amplifier, electric shunt, phase shifter, nested Mach-Zehnder modulators, and it is characterized in that: the output of described tunable light source links to each other with the light input end of nested Mach-Zehnder modulators; The output of described radio-frequency signal source links to each other with the electric amplifier input; The output of described electric amplifier links to each other with the input of electric shunt; Described nested Mach-Zehnder modulators is made up of last/two son modulation of underarm; Two output ports of described electric shunt link the radio-frequency driven port of the sub-modulator of upper arm of nested Mach-Zehnder modulators and the input port of phase shifter respectively; The output of described phase shifter links to each other with the radio-frequency driven port of the sub-modulator of underarm of nested Mach-Zehnder modulators;
Wherein, described nested Mach-Zehnder modulators by be integrated in isostructure on the single chip, with on the performance/two sub-modulators of underarm form, two sub-modulators all have radio-frequency driven port and offset port, nested Mach-Zehnder modulators has main offset port, is used to control the phase difference of two sub-modulator output light signals.
The monolateral band light of double frequency that the present invention proposes carries millimeter wave generating method and may further comprise the steps:
Wherein, described repetition rate is that the light double-sideband signal of 2fe is made up of centered carrier fc, second order upper sideband fc+2fe and three frequency components of second order lower sideband fc-2fe;
Wherein, described repetition rate is that the monolateral band light of double frequency of 2fe carries millimeter wave and is made up of centered carrier fc, two frequency components of second order lower sideband fc-2fe.
The invention has the beneficial effects as follows, need not come on the filtering second order by the optically filtering device/lower sideband can realize the generation of the double frequency light carrier millimeter wave of monolateral band, reduced the optics number, reduced the insertion loss of system; Do not need the wavelength and the logical frequency range of band of optical filter are mated with the centre wavelength of light source light wave and the frequency of modulation signal.Therefore whole device is tunable good, has very strong operability, is easier to practical application.
Description of drawings
Fig. 1 produces schematic diagram for the monolateral band light of double frequency of the present invention carries millimeter wave
Fig. 2 is embodiment of the invention figure as a result
Wherein, Fig. 2 (1) is the time domain waveform of 20GHz sinusoidal drive signals; Fig. 2 (2) is the spectrum that the monolateral band light of double frequency of nested Mach-Zehnder modulators output carries millimeter-wave signal, can see that its repetition rate is 40GHz; Fig. 2 (3) is the monolateral band light of double frequency carries the electric millimeter-wave signal that millimeter-wave signal produces after the detector opto-electronic conversion a time domain waveform, can see that its repetition rate is 40GHz, and is consistent with the waveform of original 20GHz sinusoidal drive signals, and distortion does not take place; Fig. 2 (4) is that the monolateral band light of double frequency carries the electric millimeter-wave signal frequency spectrum that millimeter-wave signal produces after the detector opto-electronic conversion, can see the big 25dB of other Frequency point power of power ratio of 40GH Frequency point.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, in the present embodiment, device comprises: tunable light source, radio-frequency signal source, electric amplifier, electric shunt, phase shifter, nested Mach-Zehnder modulators.Tunable light source, radio-frequency signal source, electric amplifier, electric shunt, phase shifter, nested Mach-Zehnder modulators is characterized in that: the output of described tunable light source links to each other with the light input end of nested Mach-Zehnder modulators; The output of described radio-frequency signal source links to each other with the electric amplifier input; The output of described electric amplifier links to each other with the input of electric shunt; Described nested Mach-Zehnder modulators is made up of last/two son modulation of underarm; Two output ports of described electric shunt link the radio-frequency driven port of the sub-modulator of upper arm of nested Mach-Zehnder modulators and the input port of phase shifter respectively; The output of described phase shifter links to each other with the radio-frequency driven port of the sub-modulator of underarm of nested Mach-Zehnder modulators.
In this example, the concrete implementation step of method is:
It is the continuous light wave of 1552nm that step 1, tunable optical source produce wavelength, and light wave is input to nested MZ Mach-Zehnder continuously, and the sinusoidal local oscillation signal of radio-frequency signal source output 20GHz is amplified to peak-to-peak value with electric amplifier and is about 8V;
Fig. 2 is that this exemplary application is in result shown in Figure 1.Wherein, Fig. 2 (1) is the time domain waveform of 20GHz sinusoidal drive signals; Fig. 2 (2) is the spectrum that the monolateral band light of double frequency of nested Mach-Zehnder modulators output carries millimeter-wave signal, can see that its repetition rate is 40GHz; Fig. 2 (3) is the monolateral band light of double frequency carries the electric millimeter-wave signal that millimeter-wave signal produces after the detector opto-electronic conversion a time domain waveform, can see that its repetition rate is 40GHz, and is consistent with the waveform of original 20GHz sinusoidal drive signals, and distortion does not take place; Fig. 2 (4) is that the monolateral band light of double frequency carries the electric millimeter-wave signal frequency spectrum that millimeter-wave signal produces after the detector opto-electronic conversion, can see the big 25dB of other Frequency point power of power ratio of 40GH Frequency point.
In a word, the above embodiment is a preferred embodiments of the present invention only, is not only to be used to limit protection scope of the present invention.Should be understood that; ordinary skill for the present technique field; on content disclosed by the invention; can also make some equivalent variations and replacement; the frequency range of millimeter wave also is not limited to 40GHz, and the modulation of these equivalent variations and replacement and frequency range also should be considered as protection scope of the present invention.
Claims (6)
1. the monolateral band light of double frequency carries the generation device of millimeter wave, comprises tunable light source, radio-frequency signal source, electric amplifier, electric shunt, phase shifter, nested Mach-Zehnder modulators, it is characterized in that:
The output of described tunable light source links to each other with the light input end of nested Mach-Zehnder modulators; The output of described radio-frequency signal source links to each other with the electric amplifier input; The output of described electric amplifier links to each other with the input of electric shunt; Described nested Mach-Zehnder modulators is made up of last/two son modulation of underarm; Two output ports of described electric shunt link the radio-frequency driven port of the sub-modulator of upper arm of nested Mach-Zehnder modulators and the input port of phase shifter respectively; The output of described phase shifter links to each other with the radio-frequency driven port of the sub-modulator of underarm of nested Mach-Zehnder modulators.
2. the monolateral band light of double frequency as claimed in claim 1 carries millimeter wave generating device, it is characterized in that:
Described nested Mach-Zehnder modulators by be integrated on the single chip on/two sub-modulators of underarm form, these two sub-modulators have identical structure and performance, each sub-modulator all has independently prevention at radio-frequency port and offset port, nested in addition Mach-Zehnder modulators also has a main offset port, is used to regulate/output of the sub-modulator of underarm.
3. the monolateral band light of double frequency carries the production method of millimeter wave, it is characterized in that, comprises following steps:
Step 1, tunable light source output frequency are to be divided into two-way up and down after the continuous light wave of fc enters nested Mach-Zehnder modulators, respectively by on the nested Mach-Zehnder modulators/two sub-modulators of underarm modulate, the radio-frequency signal source output frequency is that the sinusoidal local oscillation signal of fe amplifies the back is divided into constant power by electric shunt two paths of signals by electric amplifier: the sinusoidal local oscillation signal of the first via drives the sub-modulator of upper arm, and the second road sinusoidal local oscillation signal is through the sub-modulator of phase shifter phase shift rear drive underarm;
Step 2, the sub-modulator of upper arm of regulating nested Mach-Zehnder modulators and the bias voltage of the sub-modulator of underarm make the output of two sub-modulators produce the light double-sideband signal that repetition rate all is 2fe respectively;
Wherein, described repetition rate is that the light double-sideband signal of 2fe is made up of centered carrier fc, second order upper sideband fc+2fe and three frequency components of second order lower sideband fc-2fe;
Step 3, regulate the phase-shift phase of described phase shifter, make that the phase difference of second order upper sideband of the light double-sideband signal that the second order upper sideband of the light double-sideband signal that the sub-modulator of described underarm produces produces with respect to the sub-modulator of upper arm is that the phase difference of the second order lower sideband of the light double-sideband signal that produces with respect to the sub-modulator of upper arm of the second order lower sideband of the light double-sideband signal that produces of the sub-modulator of pi/2, described underarm is-pi/2;
Step 4, regulate the main bias voltage of nested Mach-Zehnder modulators, make that the phase difference variable of second order upper sideband of the light double-sideband signal that the second order upper sideband of the light double-sideband signal that the sub-modulator of underarm produces produces with respect to the sub-modulator of upper arm is π, the second order lower sideband of the light double-sideband signal that the sub-modulator of underarm produces is 0 with respect to the second order lower sideband phase difference variable of the light double-sideband signal that the sub-modulator of upper arm produces, then at the output of nested Mach-Zehnder modulators: described phase difference is that the second order upper sideband of π is cancelled out each other, described phase difference is 0 second order lower sideband mutual superposition, and the monolateral band light of double frequency that finally produces repetition rate and be 2fe carries millimeter wave;
Wherein, described repetition rate is that the monolateral band light of double frequency of 2fe carries millimeter wave and is made up of centered carrier fc, two frequency components of second order lower sideband fc-2fe.
4. the monolateral band light of double frequency as claimed in claim 3 carries the millimeter wave method, it is characterized in that, the bias voltage of sub-modulator of the upper arm of described nested Mach-Zehnder modulators and the sub-modulator of underarm all is adjusted to the peak of transmission curve.
5. the monolateral band light of double frequency as claimed in claim 3 carries the millimeter wave method, it is characterized in that, the phase-shift phase of described phase shifter is adjusted to the sinusoidal local oscillation signal of the first via and the second road sinusoidal local oscillation signal phase place phase difference of pi/4.
6. the monolateral band light of double frequency as claimed in claim 3 carries the millimeter wave method, it is characterized in that, the main bias voltage adjustment of described nested Mach-Zehnder modulators is the V pi/2 transmission point of transmission curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010559101.4A CN102013924B (en) | 2010-11-16 | 2010-11-16 | Device and method for generating frequency doubling single side band optical carrier millimeter waves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010559101.4A CN102013924B (en) | 2010-11-16 | 2010-11-16 | Device and method for generating frequency doubling single side band optical carrier millimeter waves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102013924A true CN102013924A (en) | 2011-04-13 |
| CN102013924B CN102013924B (en) | 2014-01-29 |
Family
ID=43843961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010559101.4A Expired - Fee Related CN102013924B (en) | 2010-11-16 | 2010-11-16 | Device and method for generating frequency doubling single side band optical carrier millimeter waves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102013924B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185814A (en) * | 2011-04-25 | 2011-09-14 | 武汉邮电科学研究院 | Method and device for automatically compensating bias voltage of QPSK (quadri phase shift keying) lithium niobate modulator |
| CN102215069A (en) * | 2011-05-26 | 2011-10-12 | 北京交通大学 | Frequency-adjustable triangle-wave photon generator |
| CN102412904A (en) * | 2011-11-10 | 2012-04-11 | 北京交通大学 | Triangular optical pulse generating device based on double-electrode Zehnder modulator |
| CN102854695A (en) * | 2012-09-03 | 2013-01-02 | 文鸿 | Device and method for generating terahertz wave based on nested Mach-Zehnder modulator |
| CN103795438A (en) * | 2014-03-06 | 2014-05-14 | 上海交通大学 | Ultra wide band radio-frequency signal generating method and device based on double driving modulators |
| CN103795472A (en) * | 2014-03-04 | 2014-05-14 | 上海交通大学 | Three-dimensional modulation ultra-wide band signal generation method based on single double-drive modulator |
| CN103873110A (en) * | 2014-04-01 | 2014-06-18 | 上海交通大学 | Method and device for generating multi-band ultra wide band radio-frequency signal based on dually-driven modulator |
| CN111193549A (en) * | 2019-11-14 | 2020-05-22 | 苏州枫桥光电科技有限公司 | Optical frequency comb generation device and method based on bilateral cyclic frequency shift |
| CN111596278A (en) * | 2019-12-24 | 2020-08-28 | 北京理工大学 | Multi-band coherent frequency-sweeping radar system based on dual-drive Mach-Zehnder modulator |
| CN114114531A (en) * | 2021-11-03 | 2022-03-01 | 上海交通大学 | Silicon-based single-sideband modulator chip with high rejection ratio |
| CN114567529A (en) * | 2022-01-25 | 2022-05-31 | 中国电子科技集团公司第十三研究所 | Single-sideband modulation system, method and device and terminal equipment |
| WO2023273797A1 (en) * | 2021-06-30 | 2023-01-05 | 中兴通讯股份有限公司 | Optical millimeter wave receiving end and transmitting end, system, demodulation method, and modulation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006229404A (en) * | 2005-02-16 | 2006-08-31 | Nec Corp | Double frequency converter |
| CN101339346A (en) * | 2008-08-14 | 2009-01-07 | 上海交通大学 | Device and method for full light generation for quadruple high speed millimeter wave signal |
| CN101350671A (en) * | 2008-06-11 | 2009-01-21 | 上海大学 | Optical frequency-doubling millimeter wave RoF system of optical QPSK modulation mode and generating method thereof |
| CN101674136A (en) * | 2009-09-25 | 2010-03-17 | 上海大学 | Optical frequency-doubling millimeter wave RoF signal generation system and method of OFDM modulation mode |
-
2010
- 2010-11-16 CN CN201010559101.4A patent/CN102013924B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006229404A (en) * | 2005-02-16 | 2006-08-31 | Nec Corp | Double frequency converter |
| CN101350671A (en) * | 2008-06-11 | 2009-01-21 | 上海大学 | Optical frequency-doubling millimeter wave RoF system of optical QPSK modulation mode and generating method thereof |
| CN101339346A (en) * | 2008-08-14 | 2009-01-07 | 上海交通大学 | Device and method for full light generation for quadruple high speed millimeter wave signal |
| CN101674136A (en) * | 2009-09-25 | 2010-03-17 | 上海大学 | Optical frequency-doubling millimeter wave RoF signal generation system and method of OFDM modulation mode |
Non-Patent Citations (3)
| Title |
|---|
| HONG WEN ET AL: "A Novel RoF Architecture with Optical Single Sideband Mm-wave Signal Generation using Frequency Doubling and Wavelength Reuse for Uplink Connection", 《ASIA COMMUNICATIONS AND PHOTONICS CONFERENCE AND EXHIBITION，SHANGHAI, CHINA》 * |
| LIN CHEN ET AL: "A Radio-Over-Fiber System With a Novel Scheme for Millimeter-Wave Generation and Wavelength Reuse for Up-Link Connection", 《IEEE PHOTONICS TECHNOLOGY LETTERS》 * |
| QINGJIANG CHANG ET AL: "Generation of optical carrier suppressed-differential phase shift keying (OCS-DPSK) format using one dual-parallel Mach-Zehnder modulator in radio over fiber systems", 《OPTICS EXPRESS》 * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185814B (en) * | 2011-04-25 | 2014-01-01 | 武汉邮电科学研究院 | Method for automatically compensating bias voltage of QPSK (quadri phase shift keying) lithium niobate modulator |
| CN102185814A (en) * | 2011-04-25 | 2011-09-14 | 武汉邮电科学研究院 | Method and device for automatically compensating bias voltage of QPSK (quadri phase shift keying) lithium niobate modulator |
| CN102215069A (en) * | 2011-05-26 | 2011-10-12 | 北京交通大学 | Frequency-adjustable triangle-wave photon generator |
| CN102412904A (en) * | 2011-11-10 | 2012-04-11 | 北京交通大学 | Triangular optical pulse generating device based on double-electrode Zehnder modulator |
| CN102412904B (en) * | 2011-11-10 | 2014-05-28 | 北京交通大学 | Triangular optical pulse generating device based on double-electrode Zehnder modulator |
| CN102854695A (en) * | 2012-09-03 | 2013-01-02 | 文鸿 | Device and method for generating terahertz wave based on nested Mach-Zehnder modulator |
| CN102854695B (en) * | 2012-09-03 | 2014-12-31 | 湖南工业大学 | Device and method for generating terahertz wave based on nested Mach-Zehnder modulator |
| CN103795472A (en) * | 2014-03-04 | 2014-05-14 | 上海交通大学 | Three-dimensional modulation ultra-wide band signal generation method based on single double-drive modulator |
| CN103795472B (en) * | 2014-03-04 | 2016-01-13 | 上海交通大学 | Based on the production method of the three-dimensional modulating UWB signal of single Dual Drive modulator |
| CN103795438B (en) * | 2014-03-06 | 2016-01-13 | 上海交通大学 | Based on the ultra-wide band radio-frequency signal generating method of Dual Drive modulator |
| CN103795438A (en) * | 2014-03-06 | 2014-05-14 | 上海交通大学 | Ultra wide band radio-frequency signal generating method and device based on double driving modulators |
| CN103873110A (en) * | 2014-04-01 | 2014-06-18 | 上海交通大学 | Method and device for generating multi-band ultra wide band radio-frequency signal based on dually-driven modulator |
| CN103873110B (en) * | 2014-04-01 | 2016-01-20 | 上海交通大学 | Based on the generation device of the multiband ultra-wide band radio-frequency signal of Dual Drive modulator |
| CN111193549A (en) * | 2019-11-14 | 2020-05-22 | 苏州枫桥光电科技有限公司 | Optical frequency comb generation device and method based on bilateral cyclic frequency shift |
| CN111596278A (en) * | 2019-12-24 | 2020-08-28 | 北京理工大学 | Multi-band coherent frequency-sweeping radar system based on dual-drive Mach-Zehnder modulator |
| WO2023273797A1 (en) * | 2021-06-30 | 2023-01-05 | 中兴通讯股份有限公司 | Optical millimeter wave receiving end and transmitting end, system, demodulation method, and modulation method |
| CN114114531A (en) * | 2021-11-03 | 2022-03-01 | 上海交通大学 | Silicon-based single-sideband modulator chip with high rejection ratio |
| CN114114531B (en) * | 2021-11-03 | 2023-02-28 | 上海交通大学 | Silicon-based single-sideband modulator chip with high rejection ratio |
| CN114567529A (en) * | 2022-01-25 | 2022-05-31 | 中国电子科技集团公司第十三研究所 | Single-sideband modulation system, method and device and terminal equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102013924B (en) | 2014-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102013924B (en) | Device and method for generating frequency doubling single side band optical carrier millimeter waves | |
| CN104022830B (en) | Device for generating eight frequency multiplication millimeter waves by utilizing Mach-Zehnder modulator | |
| CN101833221B (en) | All-optical single side band (SSB) up conversion generator based on silicon-based micro ring resonator | |
| CN108199776B (en) | Microwave photon up-conversion device and method based on photoelectric oscillator | |
| CN102593693B (en) | All-optical microwave multiplier based on non-linear polarization rotation effect | |
| CN101800606B (en) | Optical single-side band modulating device | |
| CN104601240B (en) | System and method for generating millimeter waves based on chalcogenide glass optical fiber four-wave mixing effect | |
| CN105978631A (en) | Device and method for eliminating photonic microwave self-interference signals | |
| CN102710335A (en) | Device and method for generating microwave/millimeter wave photon frequency quadrupling | |
| CN103297145A (en) | Device for generating sixteen-frequency multiplication millimeter waves in full light | |
| CN102854695B (en) | Device and method for generating terahertz wave based on nested Mach-Zehnder modulator | |
| CN103631036A (en) | Production method of adjustable optical frequency combs | |
| CN102769496A (en) | Device and method for generating octuple-frequency optical millimeter waves | |
| CN110212988A (en) | Microwave photon link dynamic range method for improving and microwave photon link | |
| CN102932063B (en) | Analogue link dispersion compensation scheme based on double-sideband modulation | |
| CN105680949A (en) | In-band full-duplex radio over fiber communication system based on wavelength division multiplexing | |
| CN105827330A (en) | Method and system for millimeter wave generation | |
| CN102255662A (en) | Radio over fibre system | |
| CN101000411A (en) | Method and device for generating millimeter wave by directly regulating laser | |
| CN101144916A (en) | Method and device for producing light millimeter wave adopting single-stage modulator | |
| CN103199795B (en) | A kind of independent incoherent double-laser low phase noise 16 frequency-doubled signal generating apparatus | |
| CN102237931B (en) | High-frequency broadband radio frequency signal optical fiber zooming system | |
| Chen et al. | A novel method to generate and transmit 40-tupling frequency millimeter wave over fiber based on remodulation of MZMs | |
| CN208337586U (en) | A kind of fiber radio integration communication system of more scene applications | |
| CN105591698A (en) | Radio-over-fiber method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20191116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |