CN204886978U - Equal 36 adjustable frequency -doubled signal generating device of no filtering compensation suppressed carrier system - Google Patents
Equal 36 adjustable frequency -doubled signal generating device of no filtering compensation suppressed carrier system Download PDFInfo
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- CN204886978U CN204886978U CN201520397447.7U CN201520397447U CN204886978U CN 204886978 U CN204886978 U CN 204886978U CN 201520397447 U CN201520397447 U CN 201520397447U CN 204886978 U CN204886978 U CN 204886978U
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Abstract
The utility model provides an equal 36 adjustable frequency -doubled signal generating device of no filtering compensation suppressed carrier system, it is lower that has solved the single light structures photon doubling of frequency signal generator frequency multiplication factor of traditional no filtering, realizes generating signal frequency and the adjustable comparatively difficult problem of light carrier rejection ratio simultaneously. The device can obtain 36 doubling of frequency millimeter wave signals under the single light structures of no filtering to realization simultaneously generates signal frequency, the light carrier rejection ratio is adjustable. Greatly promoted the single light structures photon doubling of frequency signal generator performance of no filtering, it is useful to carry radio communication ten minutes to next generation's light. Specially adapted optical communication, light carry radio communication (RoF: radioover fiber), the microwave technical field such as millimeter wave communication, radar and optical fiber sensing.
Description
Technical field
The utility model relates to a kind of without filtering single light source structure photon frequency-doubled signal generating means, is applicable to the technical fields such as optical communication, light carrier radio communication (RoF:RadiooverFiber), Wei Bo millimetre-wave attenuator, radar and Fibre Optical Sensor.
Background technology
The proposition of " 5G " concept, indicates the epoch of " Gbps " at hand.Global communication giant has taken up to research and develop " 5G " communication technology, and even realizing of having is broken through, and proposes the core technology that oneself following commercialization " 5G " communicates.On May 13rd, 2013, Co., Ltd of Samsung of Korea S announces the core technology successfully developing the 5th third-generation mobile communication (5G), and this technology is estimated to start to push commercialization in the year two thousand twenty.This technology can at 28GHz hyper band with the data speed transmission of more than 1Gbps per second, and the longest transmitting range can reach 2 kilometers.But the transmission rate that current forth generation Long Term Evolution (4GLTE) is served is only 75Mbps, and " 5G " core technology will soon hundreds of times.On April 12nd, 2015, nokia networks department cooperates with Nat Instr Corp., makes so-called already through the fastest cellular technology of test.This network can send data with the millimeter-wave frequency of 73GHz, and speed, up to 10Gbps, makes " 5G " speed be further improved.From proposed two large " 5G " core technologies, we are not difficult to find, the core technology of next generation mobile communication all have employed new frequency spectrum--pseudo millimeteric wave is millimeter wave frequency band even, this imply that stablize high performance pseudo millimeteric wave even millimetre-wave signal will become the heart of future communication systems.
At present, the scholar of various countries has proposed multiple pseudo millimeteric wave even millimeter wave generation technique, vacuum tube such as based on conventional electronics, Solid Source technology, the dual wavelength beat frequency technology based on photonic propulsion, nonlinear technology, incoherent pair of source outer modulation frequency doubling technology and without filtering single light source external modulation frequency doubling technology etc.By contrast, rely on self stability strong, easy realization, easily manipulation, adjustable and multi-functional feature without filtering single light source external modulation frequency doubling technology, just progressively become the pseudo millimeteric wave even mainstream technology of millimetre-wave signal.
Based on the pseudo millimeteric wave even millimetre-wave signal without filtering single light source external modulation frequency doubling technology, main under the system environments of reactive filter, utilize single light source, low frequency local oscillator, by external modulator, laser is modulated, direct generation two can the coherent light sideband of difference frequency, and then by opto-electronic conversion realize times over even ten times over local vibration source frequency pseudo millimeteric wave even millimeter-wave signal generate, its frequency is relevant with system multiplier parameter.Because whole system has broken away from the restriction of filter, make based on the pseudo millimeteric wave without filtering single light source external modulation frequency doubling technology even millimetre-wave signal easily possess the adjustable function of signal frequency.
Chinese Patent Application No. 201210495305.5 proposes and utilizes two parallel Mach-increasing Dare modulator to produce quadruple millimeter wave generator scheme under without filtering single light source structure; Chinese Patent Application No. 201410025712.9 proposes and utilizes two parallel Mach-increasing Dare modulator to produce the generator scheme of octonary millimeter wave under without filtering single light source structure; Chinese Patent Application No. 201310169851.4 proposes and utilizes two parallel Mach-increasing Dare modulator to produce the generator scheme of 16 frequency-doubling millimeter waves under without filtering single light source structure.But such scheme all cannot realize the further lifting of multiplier parameter, and generate signal frequency with optical carrier suppression than all adjustable function.
This patent proposes a kind of high multiplier parameter, Mobyneb photon frequency doubling generator scheme, without under filtering single light source structure, can obtain 36 frequency doubling millimetre wave signals, and realizes generating signal frequency, optical carrier suppression than adjustable simultaneously.Significant increase is without filtering single light source structure photon frequency-doubled signal generator performance, very useful to light carrier radio communication of future generation.
Utility model content
Technical problem to be solved in the utility model is: tradition is lower without filtering single light source structure photon frequency-doubled signal generator multiplier parameter, realizes generating signal frequency and the problem of optical carrier suppression than adjustable comparatively difficulty simultaneously.
The technical solution of the utility model is:
A kind of without all adjustable 36 frequency-doubled signal generating meanss of frequency filtering suppressed carrier system, it is characterized in that this device multiplier parameter is 36, without the need to filtering device, optical carrier suppression than adjustable, to produce signal frequency adjustable;
Its device comprises: tunable laser, local vibration source, 1 × 2 electric bridge one, phase shifter one, two parallel Mach increases Dare modulator, 1 × 2 optical splitter one, photodetector one, 1 × 2 electric bridge two, phase shifter two, 1 × 2 optical splitter two, intensity modulator one, intensity modulator two, optical phase shifter, Polarization Controller one, Polarization Controller two, polarization beam combiner, the polarizer, photodetector two;
Concrete connected mode is:
The light output end of tunable laser connects the light input end that two parallel Mach increases Dare modulator, the electric output of local vibration source connects the electrical input of 1 × 2 electric bridge one, two electric outputs of 1 × 2 electric bridge one connect the electrical input that two parallel Mach increases Dare modulator upper arm electrical input and phase shifter one respectively, the electric output of phase shifter one connects two parallel Mach and increases Dare modulator underarm electrical input, two parallel Mach increases the light input end that Dare modulator light output end connects 1 × 2 optical splitter one, two light output ends of 1 × 2 optical splitter one connect the light input end of photodetector one and 1 × 2 optical splitter two respectively, the electric output of photodetector one connects the electrical input of 1 × 2 electric bridge two, two electric outputs difference bonding strength modulators one of 1 × 2 electric bridge two and the electrical input of phase shifter two, the electrical input of the electric output bonding strength modulator two of phase shifter two, two light output ends difference bonding strength modulators one of 1 × 2 optical splitter two and the light input end of intensity modulator two, the light output end of intensity modulator one connects the light input end of optical phase shifter, the light output end of optical phase shifter connects the light input end of Polarization Controller one, the light output end of intensity modulator two connects the light input end of Polarization Controller two, the light output end of Polarization Controller one and Polarization Controller two connects two light input ends of polarization beam combiner respectively, the light output end of polarization beam combiner connects the light input end of the polarizer, the light output end of the polarizer connects the light input end of photodetector two,
In plant running process, device parameters is: phase shifter one provides 90 degree of phase shifts, phase shifter two provides 180 degree of phase shifts, optical phase shifter provides 180 degree of phase shifts, two parallel Mach increases the upper and lower two-arm integrated modulator of Dare modulator and is all offset to maximum transmitted point, kernel modulation device is bigoted in minimum transfer point, and intensity modulator one and intensity modulator two are all offset to maximum transmitted point; Polarization Controller one and Polarization Controller two output light signal is made to be in orthogonal polarisation state by regulating Polarization Controller one and Polarization Controller two;
Device generates signal frequency regulative mode: device does not adopt any filtering device, by means of only adjustment local vibration source output frequency, can realize generating signal frequency and regulate;
Device optical carrier suppression than regulative mode is: device makes Polarization Controller one and Polarization Controller two output light signal be in orthogonal polarisation state by regulating Polarization Controller one and Polarization Controller two, by controlling the polarizing angle of the polarizer, optical carrier suppression can be realized than regulating.
The beneficial effects of the utility model are specific as follows:
One described in the utility model, without all adjustable 36 frequency-doubled signal generating meanss of frequency filtering suppressed carrier system, without under filtering single light source structure, can obtain 36 frequency doubling millimetre wave signals, and realizes generating signal frequency, optical carrier suppression than adjustable simultaneously.Solve tradition lower without filtering single light source structure photon frequency-doubled signal generator multiplier parameter, realize generating signal frequency and the problem of optical carrier suppression than adjustable comparatively difficulty simultaneously.Significant increase is without filtering single light source structure photon frequency-doubled signal generator performance, very useful to light carrier radio communication of future generation.
Accompanying drawing explanation
Fig. 1 is a kind of without all adjustable 36 frequency-doubled signal generating means structural representations of frequency filtering suppressed carrier system.
Embodiment
Below in conjunction with accompanying drawing, one is further described without all adjustable 36 frequency-doubled signal generating meanss of frequency filtering suppressed carrier system.
Execution mode one:
A kind of without all adjustable 36 frequency-doubled signal generating meanss of frequency filtering suppressed carrier system, its device comprises as shown in Figure 1: tunable laser 1, local vibration source 2,1 × 2 electric bridge 1, phase shifter 1, two parallel Mach increases Dare modulator 5,1 × 2 optical splitter 1, photodetector 1,1 × 2 electric bridge 28, phase shifter 29,1 × 2 optical splitter 2 10, intensity modulator 1, intensity modulator 2 12, optical phase shifter 13, Polarization Controller 1, Polarization Controller 2 15, polarization beam combiner 16, the polarizer 17, photodetector 2 18;
Concrete connected mode is: the light output end of tunable laser 1 connects the light input end that two parallel Mach increases Dare modulator 5, the electric output of local vibration source 2 connects the electrical input of 1 × 2 electric bridge 1, two electric outputs of 1 × 2 electric bridge 1 connect the electrical input that two parallel Mach increases Dare modulator 5 upper arm electrical input and phase shifter 1 respectively, the electric output of phase shifter 1 connects two parallel Mach and increases Dare modulator 5 underarm electrical input, two parallel Mach increases the light input end that Dare modulator 5 light output end connects 1 × 2 optical splitter 1, two light output ends of 1 × 2 optical splitter 1 connect the light input end of photodetector one 7 and 1 × 2 optical splitter 2 10 respectively, the electric output of photodetector 1 connects the electrical input of 1 × 2 electric bridge 28, two electric outputs difference bonding strength modulators 1 of 1 × 2 electric bridge 28 and the electrical input of phase shifter 29, the electrical input of the electric output bonding strength modulator 2 12 of phase shifter 29, two light output ends difference bonding strength modulators 1 of 1 × 2 optical splitter 2 10 and the light input end of intensity modulator 2 12, the light output end of intensity modulator 1 connects the light input end of optical phase shifter 13, the light output end of optical phase shifter 13 connects the light input end of Polarization Controller 1, the light output end of intensity modulator 2 12 connects the light input end of Polarization Controller 2 15, the light output end of Polarization Controller 1 and Polarization Controller 2 15 connects two light input ends of polarization beam combiner 16 respectively, the light output end of polarization beam combiner 16 connects the light input end of the polarizer 17, the light output end of the polarizer 17 connects the light input end of photodetector 2 18,
In plant running process, device parameters is: phase shifter 1 provides 90 degree of phase shifts, phase shifter 29 provides 180 degree of phase shifts, optical phase shifter 13 provides 180 degree of phase shifts, two parallel Mach increases Dare modulator about 5 two-arm integrated modulator and is all offset to maximum transmitted point, kernel modulation device is bigoted in minimum transfer point, and intensity modulator 1 and intensity modulator 2 12 are all offset to maximum transmitted point; Polarization Controller 1 and Polarization Controller 2 15 output light signal is made to be in orthogonal polarisation state by regulating Polarization Controller 1 and Polarization Controller 2 15;
Device generates signal frequency regulative mode: device does not adopt any filtering device, by means of only adjustment local vibration source 2 output frequency, can realize generating signal frequency and regulate;
Device optical carrier suppression than regulative mode is: device makes Polarization Controller 1 and Polarization Controller 2 15 output light signal be in orthogonal polarisation state by regulating Polarization Controller 1 and Polarization Controller 2 15, by controlling the polarizing angle of the polarizer 17, optical carrier suppression can be realized than regulating.
In the present embodiment, the operation wavelength of tunable laser 1 is 1550nm, local vibration source 2 output frequency at 0GHz to 1GHz with 0.1GHz frequency interval consecutive variations, 1 × 2 electric bridge one 3 and 1 × 2 electric bridge 28 is common commercial microwave line electric bridge, 1 × 2 optical splitter one 6 and 1 × 2 optical splitter 2 10 is as common commercial 50:50 optical splitter, phase shifter 1, phase shifter 29, optical phase shifter 13, two parallel Mach increases Dare modulator 5, intensity modulator 1 and intensity modulator 2 12 are all arranged according to device parameter requirements in plant running process, photodetector 1 can complete detection 0GHz to 15GHz signal, photodetector 2 18 can complete detection 0GHz to 40GHz signal, Polarization Controller 1, Polarization Controller 2 15, polarization beam combiner 16 and the polarizer 17, be business equipment, Polarization Controller 1 and Polarization Controller 2 15 regulate according to putting device parameter requirements in running.By adjustment local vibration source 2 output frequency, make it at 0GHz to 1GHz with 0.1GHz frequency interval consecutive variations, through 1 × 2 electric bridge 1, phase shifter 1, two parallel Mach increases Dare modulator 5, 1 × 2 optical splitter 1, photodetector 1, 1 × 2 electric bridge 28, phase shifter 29, 1 × 2 optical splitter 2 10, intensity modulator 1, intensity modulator 2 12, optical phase shifter 13, Polarization Controller 1, Polarization Controller 2 15, polarization beam combiner 16, the polarizer 17, photodetector 2 18, 0GHz to 36GHz can be generated with 3.6GHz frequency interval continually varying radiofrequency signal, and by regulating the polarizing angle of the polarizer 17, optical carrier suppression can be realized than regulating continuously from 0dB to 40dB.
Execution mode two:
A kind of without all adjustable 36 frequency-doubled signal generating meanss of frequency filtering suppressed carrier system, its device comprises as shown in Figure 1: tunable laser 1, local vibration source 2,1 × 2 electric bridge 1, phase shifter 1, two parallel Mach increases Dare modulator 5,1 × 2 optical splitter 1, photodetector 1,1 × 2 electric bridge 28, phase shifter 29,1 × 2 optical splitter 2 10, intensity modulator 1, intensity modulator 2 12, optical phase shifter 13, Polarization Controller 1, Polarization Controller 2 15, polarization beam combiner 16, the polarizer 17, photodetector 2 18;
Concrete connected mode is: the light output end of tunable laser 1 connects the light input end that two parallel Mach increases Dare modulator 5, the electric output of local vibration source 2 connects the electrical input of 1 × 2 electric bridge 1, two electric outputs of 1 × 2 electric bridge 1 connect the electrical input that two parallel Mach increases Dare modulator 5 upper arm electrical input and phase shifter 1 respectively, the electric output of phase shifter 1 connects two parallel Mach and increases Dare modulator 5 underarm electrical input, two parallel Mach increases the light input end that Dare modulator 5 light output end connects 1 × 2 optical splitter 1, two light output ends of 1 × 2 optical splitter 1 connect the light input end of photodetector one 7 and 1 × 2 optical splitter 2 10 respectively, the electric output of photodetector 1 connects the electrical input of 1 × 2 electric bridge 28, two electric outputs difference bonding strength modulators 1 of 1 × 2 electric bridge 28 and the electrical input of phase shifter 29, the electrical input of the electric output bonding strength modulator 2 12 of phase shifter 29, two light output ends difference bonding strength modulators 1 of 1 × 2 optical splitter 2 10 and the light input end of intensity modulator 2 12, the light output end of intensity modulator 1 connects the light input end of optical phase shifter 13, the light output end of optical phase shifter 13 connects the light input end of Polarization Controller 1, the light output end of intensity modulator 2 12 connects the light input end of Polarization Controller 2 15, the light output end of Polarization Controller 1 and Polarization Controller 2 15 connects two light input ends of polarization beam combiner 16 respectively, the light output end of polarization beam combiner 16 connects the light input end of the polarizer 17, the light output end of the polarizer 17 connects the light input end of photodetector 2 18,
In plant running process, device parameters is: phase shifter 1 provides 90 degree of phase shifts, phase shifter 29 provides 180 degree of phase shifts, optical phase shifter 13 provides 180 degree of phase shifts, two parallel Mach increases Dare modulator about 5 two-arm integrated modulator and is all offset to maximum transmitted point, kernel modulation device is bigoted in minimum transfer point, and intensity modulator 1 and intensity modulator 2 12 are all offset to maximum transmitted point; Polarization Controller 1 and Polarization Controller 2 15 output light signal is made to be in orthogonal polarisation state by regulating Polarization Controller 1 and Polarization Controller 2 15;
Device generates signal frequency regulative mode: device does not adopt any filtering device, by means of only adjustment local vibration source 2 output frequency, can realize generating signal frequency and regulate;
Device optical carrier suppression than regulative mode is: device makes Polarization Controller 1 and Polarization Controller 2 15 output light signal be in orthogonal polarisation state by regulating Polarization Controller 1 and Polarization Controller 2 15, by controlling the polarizing angle of the polarizer 17, optical carrier suppression can be realized than regulating.
In the present embodiment, the operation wavelength of tunable laser 1 is 1549nm, local vibration source 2 output frequency at 2GHz to 3GHz with 0.05GHz frequency interval consecutive variations, 1 × 2 electric bridge one 3 and 1 × 2 electric bridge 28 is common commercial microwave line electric bridge, 1 × 2 optical splitter one 6 and 1 × 2 optical splitter 2 10 is as common commercial 50:50 optical splitter, phase shifter 1, phase shifter 29, optical phase shifter 13, two parallel Mach increases Dare modulator 5, intensity modulator 1 and intensity modulator 2 12 are all arranged according to device parameter requirements in plant running process, photodetector 1 can complete detection 20GHz to 40GHz signal, photodetector 2 18 can complete detection 70GHz to 110GHz signal, Polarization Controller 1, Polarization Controller 2 15, polarization beam combiner 16 and the polarizer 17, be business equipment, Polarization Controller 1 and Polarization Controller 2 15 regulate according to putting device parameter requirements in running.By adjustment local vibration source 2 output frequency, make it at 2GHz to 3GHz with 0.05GHz frequency interval consecutive variations, through 1 × 2 electric bridge 1, phase shifter 1, two parallel Mach increases Dare modulator 5, 1 × 2 optical splitter 1, photodetector 1, 1 × 2 electric bridge 28, phase shifter 29, 1 × 2 optical splitter 2 10, intensity modulator 1, intensity modulator 2 12, optical phase shifter 13, Polarization Controller 1, Polarization Controller 2 15, polarization beam combiner 16, the polarizer 17, photodetector 2 18, 72GHz to 108GHz can be generated with 1.8GHz frequency interval continually varying millimeter-wave signal, and by regulating the polarizing angle of the polarizer 17, optical carrier suppression can be realized than regulating continuously from 0dB to 40dB.
Execution mode three:
A kind of without all adjustable 36 frequency-doubled signal generating meanss of frequency filtering suppressed carrier system, its device comprises as shown in Figure 1: tunable laser 1, local vibration source 2,1 × 2 electric bridge 1, phase shifter 1, two parallel Mach increases Dare modulator 5,1 × 2 optical splitter 1, photodetector 1,1 × 2 electric bridge 28, phase shifter 29,1 × 2 optical splitter 2 10, intensity modulator 1, intensity modulator 2 12, optical phase shifter 13, Polarization Controller 1, Polarization Controller 2 15, polarization beam combiner 16, the polarizer 17, photodetector 2 18;
Concrete connected mode is: the light output end of tunable laser 1 connects the light input end that two parallel Mach increases Dare modulator 5, the electric output of local vibration source 2 connects the electrical input of 1 × 2 electric bridge 1, two electric outputs of 1 × 2 electric bridge 1 connect the electrical input that two parallel Mach increases Dare modulator 5 upper arm electrical input and phase shifter 1 respectively, the electric output of phase shifter 1 connects two parallel Mach and increases Dare modulator 5 underarm electrical input, two parallel Mach increases the light input end that Dare modulator 5 light output end connects 1 × 2 optical splitter 1, two light output ends of 1 × 2 optical splitter 1 connect the light input end of photodetector one 7 and 1 × 2 optical splitter 2 10 respectively, the electric output of photodetector 1 connects the electrical input of 1 × 2 electric bridge 28, two electric outputs difference bonding strength modulators 1 of 1 × 2 electric bridge 28 and the electrical input of phase shifter 29, the electrical input of the electric output bonding strength modulator 2 12 of phase shifter 29, two light output ends difference bonding strength modulators 1 of 1 × 2 optical splitter 2 10 and the light input end of intensity modulator 2 12, the light output end of intensity modulator 1 connects the light input end of optical phase shifter 13, the light output end of optical phase shifter 13 connects the light input end of Polarization Controller 1, the light output end of intensity modulator 2 12 connects the light input end of Polarization Controller 2 15, the light output end of Polarization Controller 1 and Polarization Controller 2 15 connects two light input ends of polarization beam combiner 16 respectively, the light output end of polarization beam combiner 16 connects the light input end of the polarizer 17, the light output end of the polarizer 17 connects the light input end of photodetector 2 18,
In plant running process, device parameters is: phase shifter 1 provides 90 degree of phase shifts, phase shifter 29 provides 180 degree of phase shifts, optical phase shifter 13 provides 180 degree of phase shifts, two parallel Mach increases Dare modulator about 5 two-arm integrated modulator and is all offset to maximum transmitted point, kernel modulation device is bigoted in minimum transfer point, and intensity modulator 1 and intensity modulator 2 12 are all offset to maximum transmitted point; Polarization Controller 1 and Polarization Controller 2 15 output light signal is made to be in orthogonal polarisation state by regulating Polarization Controller 1 and Polarization Controller 2 15;
Device generates signal frequency regulative mode: device does not adopt any filtering device, by means of only adjustment local vibration source 2 output frequency, can realize generating signal frequency and regulate;
Device optical carrier suppression than regulative mode is: device makes Polarization Controller 1 and Polarization Controller 2 15 output light signal be in orthogonal polarisation state by regulating Polarization Controller 1 and Polarization Controller 2 15, by controlling the polarizing angle of the polarizer 17, optical carrier suppression can be realized than regulating.
In the present embodiment, the operation wavelength of tunable laser 1 is 1551nm, local vibration source 2 output frequency at 0GHz to 3GHz with 0.01GHz frequency interval consecutive variations, 1 × 2 electric bridge one 3 and 1 × 2 electric bridge 28 is common commercial microwave line electric bridge, 1 × 2 optical splitter one 6 and 1 × 2 optical splitter 2 10 is as common commercial 50:50 optical splitter, phase shifter 1, phase shifter 29, optical phase shifter 13, two parallel Mach increases Dare modulator 5, intensity modulator 1 and intensity modulator 2 12 are all arranged according to device parameter requirements in plant running process, photodetector 1 can complete detection 0GHz to 40GHz signal, photodetector 2 18 can complete detection 0GHz to 110GHz signal, Polarization Controller 1, Polarization Controller 2 15, polarization beam combiner 16 and the polarizer 17, be business equipment, Polarization Controller 1 and Polarization Controller 2 15 regulate according to putting device parameter requirements in running.By adjustment local vibration source 2 output frequency, make it at 0GHz to 3GHz with 0.01GHz frequency interval consecutive variations, through 1 × 2 electric bridge 1, phase shifter 1, two parallel Mach increases Dare modulator 5, 1 × 2 optical splitter 1, photodetector 1, 1 × 2 electric bridge 28, phase shifter 29, 1 × 2 optical splitter 2 10, intensity modulator 1, intensity modulator 2 12, optical phase shifter 13, Polarization Controller 1, Polarization Controller 2 15, polarization beam combiner 16, the polarizer 17, photodetector 2 18, 0GHz to 108GHz can be generated with 0.36GHz frequency interval continually varying radiofrequency signal, and by regulating the polarizing angle of the polarizer 17, optical carrier suppression can be realized than regulating continuously from 0dB to 40dB.
The above embodiment is only preferred embodiment of the present utility model, be not intended to limit protection range of the present utility model, should be understood that, for those skilled in the art, in content disclosed in the utility model, some equivalent variations and replacement can also be made, laser works wavelength is not limited to 1549nm, 1550nm and 1551nm, the scope of radio frequency signal generation can be not limited to 0 to 108GHz, frequency interval is not limited to 0.36GHz, 1.8GHz and 3.6GHz, optical carrier suppression is not limited to 0dB to 40dB than adjustable extent, these equivalent variations and replacement and laser works wavelength, frequency range, frequency interval, optical carrier suppression also should be considered as the protection range of this patent than the adjustment of adjustable extent.
Claims (1)
1., without all adjustable 36 frequency-doubled signal generating meanss of frequency filtering suppressed carrier system, it is characterized in that this device multiplier parameter is 36, without the need to filtering device, optical carrier suppression than adjustable, to produce signal frequency adjustable;
Its device comprises: tunable laser (1), local vibration source (2), 1 × 2 electric bridge one (3), phase shifter one (4), two parallel Mach increases Dare modulator (5), 1 × 2 optical splitter one (6), photodetector one (7), 1 × 2 electric bridge two (8), phase shifter two (9), 1 × 2 optical splitter two (10), intensity modulator one (11), intensity modulator two (12), optical phase shifter (13), Polarization Controller one (14), Polarization Controller two (15), polarization beam combiner (16), the polarizer (17), photodetector two (18),
Concrete connected mode is:
The light output end of tunable laser (1) connects the light input end that two parallel Mach increases Dare modulator (5), the electric output of local vibration source (2) connects the electrical input of 1 × 2 electric bridge one (3), two electric outputs of 1 × 2 electric bridge one (3) connect the electrical input that two parallel Mach increases Dare modulator (5) upper arm electrical input and phase shifter one (4) respectively, the electric output of phase shifter one (4) connects two parallel Mach and increases Dare modulator (5) underarm electrical input, two parallel Mach increases the light input end that Dare modulator (5) light output end connects 1 × 2 optical splitter one (6), two light output ends of 1 × 2 optical splitter one (6) connect the light input end of photodetector one (7) and 1 × 2 optical splitter two (10) respectively, the electric output of photodetector one (7) connects the electrical input of 1 × 2 electric bridge two (8), two electric outputs difference bonding strength modulators one (11) of 1 × 2 electric bridge two (8) and the electrical input of phase shifter two (9), the electrical input of the electric output bonding strength modulator two (12) of phase shifter two (9), two light output ends difference bonding strength modulators one (11) of 1 × 2 optical splitter two (10) and the light input end of intensity modulator two (12), the light output end of intensity modulator one (11) connects the light input end of optical phase shifter (13), the light output end of optical phase shifter (13) connects the light input end of Polarization Controller one (14), the light output end of intensity modulator two (12) connects the light input end of Polarization Controller two (15), the light output end of Polarization Controller one (14) and Polarization Controller two (15) connects two light input ends of polarization beam combiner (16) respectively, the light output end of polarization beam combiner (16) connects the light input end of the polarizer (17), the light output end of the polarizer (17) connects the light input end of photodetector two (18),
In plant running process, device parameters is: phase shifter one (4) provides 90 degree of phase shifts, phase shifter two (9) provides 180 degree of phase shifts, optical phase shifter (13) provides 180 degree of phase shifts, two parallel Mach increases the upper and lower two-arm integrated modulator of Dare modulator (5) and is all offset to maximum transmitted point, kernel modulation device is bigoted in minimum transfer point, and intensity modulator one (11) and intensity modulator two (12) are all offset to maximum transmitted point; Polarization Controller one (14) and Polarization Controller two (15) output light signal is made to be in orthogonal polarisation state by regulating Polarization Controller one (14) and Polarization Controller two (15);
Device generates signal frequency regulative mode: device does not adopt any filtering device, by means of only adjustment local vibration source (2) output frequency, can realize generating signal frequency and regulate;
Device optical carrier suppression than regulative mode is: device makes Polarization Controller one (14) and Polarization Controller two (15) output light signal be in orthogonal polarisation state by regulating Polarization Controller one (14) and Polarization Controller two (15), by controlling the polarizing angle of the polarizer (17), optical carrier suppression can be realized than regulating.
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| CN105553564A (en) * | 2015-12-14 | 2016-05-04 | 北京交通大学 | Nyquist waveform optical generating device with adjustable duty ratio |
| CN106953698A (en) * | 2017-03-08 | 2017-07-14 | 北京交通大学 | A kind of multi-functional millimeter wave, Nyquist waveform, triangular waveform optics generating means |
| CN108454504A (en) * | 2017-02-17 | 2018-08-28 | 法雷奥照明公司 | It is used in particular for the communication device of motor vehicles |
| WO2019071614A1 (en) * | 2017-10-13 | 2019-04-18 | 华为技术有限公司 | Method and device for optical carrier suppression modulation |
| CN113162694A (en) * | 2021-02-23 | 2021-07-23 | 复旦大学 | Photon auxiliary vector millimeter wave signal generation system |
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2015
- 2015-06-10 CN CN201520397447.7U patent/CN204886978U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105553564A (en) * | 2015-12-14 | 2016-05-04 | 北京交通大学 | Nyquist waveform optical generating device with adjustable duty ratio |
| CN105553564B (en) * | 2015-12-14 | 2017-09-12 | 北京交通大学 | A kind of adjustable Nyquist waveform optics generating means of dutycycle |
| CN108454504A (en) * | 2017-02-17 | 2018-08-28 | 法雷奥照明公司 | It is used in particular for the communication device of motor vehicles |
| CN108454504B (en) * | 2017-02-17 | 2021-10-08 | 法雷奥照明公司 | Communication device, in particular for a motor vehicle |
| CN106953698A (en) * | 2017-03-08 | 2017-07-14 | 北京交通大学 | A kind of multi-functional millimeter wave, Nyquist waveform, triangular waveform optics generating means |
| CN106953698B (en) * | 2017-03-08 | 2019-05-10 | 北京交通大学 | A kind of multi-functional millimeter wave, Nyquist waveform, triangular waveform optics generating device |
| WO2019071614A1 (en) * | 2017-10-13 | 2019-04-18 | 华为技术有限公司 | Method and device for optical carrier suppression modulation |
| CN111164911A (en) * | 2017-10-13 | 2020-05-15 | 华为技术有限公司 | Method and device for suppressing and modulating optical carrier |
| CN111164911B (en) * | 2017-10-13 | 2021-06-29 | 华为技术有限公司 | Method and device for suppressing and modulating optical carrier |
| CN113162694A (en) * | 2021-02-23 | 2021-07-23 | 复旦大学 | Photon auxiliary vector millimeter wave signal generation system |
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