CN105915282B - The communication system of spatial light carrier generator is directly pumped based on sunlight - Google Patents
The communication system of spatial light carrier generator is directly pumped based on sunlight Download PDFInfo
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- CN105915282B CN105915282B CN201610187805.0A CN201610187805A CN105915282B CN 105915282 B CN105915282 B CN 105915282B CN 201610187805 A CN201610187805 A CN 201610187805A CN 105915282 B CN105915282 B CN 105915282B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/112—Line-of-sight transmission over an extended range
- H04B10/1121—One-way transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/299—Signal waveform processing, e.g. reshaping or retiming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/504—Laser transmitters using direct modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Optical Communication System (AREA)
Abstract
The present invention provides a kind of communication systems that spatial light carrier generator is directly pumped based on sunlight, comprising: module, pumping operational module, modulation communication module are divided in sun photopolymerization；The sun photopolymerization segmentation module is transmitted to pumping operational module for assembling solar energy after solar energy is split according to different frequency ranges；The pumping operational module is used to the sunlight of segmentation being converted into multichannel light carrier；In the carrier wave that the modulation communication module is used to generate modulate communications information to the pumping operational module, and exported after carrying out shaping to light beam.System in the present invention meets the power and light beam index request of existing satellite optical communication using solar energy as the unique energy source of multichannel light carrier, while reducing existing thermal control problem and low-energy-efficiency problem based in electric pump optical communication technique.
Description
Technical field
The present invention relates to optical communication fields, and in particular, to one kind directly pumps the generation of space light carrier based on sunlight
The communication system of device.
Background technique
Laser space communication system refers to using laser light wave as carrier wave, optical communication system of the atmosphere as transmission medium.
Free space laser communication combines the advantages of fiber optic communication and microwave communication, both with big message capacity, high-speed transfer it is excellent
Point, and do not need to be laid with optical fiber, therefore each technology power puts into a large amount of manpower and material resources in laser space communication field, and achieves
Remarkable progress.Propagation in atmosphere laser communication system be by Liang Tai laser communication mechanism at communication system, they are mutually to other side
Emit the laser pulse signal (sound or data) modulated, receive and demodulate the laser pulse signal from other side, realizes double
Work communication.
The construction of China's Future Satellite optical-fiber network needs more low power consumption, more long-life to reduce single star cost, more simplified
The satellite laser communications terminal of thermal control design.For this purpose, carrying out the nanometer based on the direct light optical pumping light carrier generator of sunlight
The research of optical communication system.
It can be using sunlight as the nano optical communication system of direct energy source, in the system the present invention is directed to be developed into one kind
Using solar energy as unique energy source, meet the power and light beam index request of existing satellite optical communication, simultaneously
Reduce existing thermal control problem and low-energy-efficiency problem based in electric pump optical communication technique.
Summary of the invention
For the defects in the prior art, spatial light is directly pumped based on sunlight the object of the present invention is to provide one kind to carry
The communication system of wave producer.
What is provided according to the present invention directly pumps the communication system of spatial light carrier generator based on sunlight, comprising: too
Sunlight polymerization segmentation module, pumping operational module, modulation communication module；
The sun photopolymerization segmentation module is used to assemble solar energy, and solar energy according to different frequency ranges
Pumping operational module is transmitted to after being split；
The pumping operational module is used to the sunlight of segmentation being converted into multichannel light carrier；
In the carrier wave light beam that the modulation communication module is used to generate modulate communications information to the pumping operational module,
And it is exported after carrying out shaping to light beam.
Preferably, the sun photopolymerization segmentation module includes: sunlight tracking system, condenser system, spectrum segmentation system
System, output coupling system；Sunlight is successively by the condenser system, sunlight tracking system, spectrum segmenting system, output coupling
Pumping operational module is transmitted to after collaboration system.
Preferably, the condenser system includes: Fresnel Lenses face and 3D-CPC laser pump cavity, and sunlight is saturating by Fresnel
It is converged in 3D-CPC laser pump cavity after mirror surface.
Preferably, the spectrum segmenting system includes the Transflective mirror of multiple plating different medium films, the Transflective
Mirror will be separated by the converging beam of sunlight tracking system, obtain multichannel pump light source.
Preferably, the pumping operational module includes: light on-off switch, sun light pumped laser, temperature sensing control
System passes through after being pumped respectively with corresponding pumping operation material by the multichannel light source of sun photopolymerization segmentation module segmentation
Light on-off switch inputs sun light pumped laser, and the sun light pumped laser exports after generating continuous laser carrier wave；
Wherein, the sun light pumped laser is provided with temperature sensing control system, when operating temperature is higher than working substance
When the steady state temperature upper limit of matter, shutdown signal is sent to light on-off switch, light on-off switch by temperature sensing control system
Cut off light source input.
Preferably, the modulation communication module include: signal source, laser signal modulating system, optical shaping system and
Optical antenna, the modulated signal modulation sun light pumped laser that the laser signal modulating system is sent according to signal source generate
Continuous laser carrier wave, and the signal modulated is sent to after optical shaping system shaping and is outwardly sent out by optical antenna
It send.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, the communication system provided by the invention that spatial light carrier generator is directly pumped based on sunlight makes full use of pump
Pu substance diversity, the feature that output quality is excellent and performance is stable, so that the present invention has compared to traditional communication system
There are multi-wavelength, narrow linewidth, the technical characterstics such as long-life.
2, the communication system provided by the invention that spatial light carrier generator is directly pumped based on sunlight utilizes sunlight
Energy meets the power and light beam index request of existing satellite optical communication as unique energy source, while reducing existing base
Thermal control problem and low-energy-efficiency problem in electric pump optical communication technique.
3, the multichannel light carrier pump technology based on solar spectrum segmentation, the sunlight after segmentation, which can pump, has difference
The operation material of absorption spectrum, further increases the utilization rate of solar energy, and reduce pump single operation material when
Energy waste, avoid generating extra thermal energy since invalid pump energy irradiates operation material, bring thermal control pressure to system.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is that modular structure schematic diagram is divided in sun photopolymerization；
Fig. 2 is condenser system structural schematic diagram；
Fig. 3 is spectrum segmenting system structural schematic diagram；
Fig. 4 is pumping operational module structural schematic diagram；
Fig. 5 is modulation communication modular structure schematic diagram；
In figure:
1- condenser system；
2- sunlight tracking system；
3- spectrum segmenting system；
4- output coupling system
5- Fresnel Lenses face；
6-3D-CPC laser pump cavity；
7- plates deielectric-coating Transflective mirror；
8- light on-off switch；
9- sun light pumped laser；
10- temperature sensing control system
11- signal source；
12- laser signal modulating system；
13- optical shaping system；
14- optical antenna.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
The communication system that spatial light carrier generator is directly pumped based on sunlight proposed according to the present invention is divided into three
Module, pumping operational module, modulation communication module are divided in groundwork module, sun photopolymerization.
The function of sun photopolymerization segmentation module is aggregation solar energy and energy is divided according to different frequency ranges
It cuts, the segmentation road Hou Ge light source is transported to subsequent work module.Spectrum segmentation refers to the suction according to different pumping operation materials
It receives frequency range and carries out classifying rationally.Sun photopolymerization segmentation module is mainly made of four parts: sunlight tracking system, optically focused system
System, spectrum segmenting system, output coupling system.
The core that module is divided in sun photopolymerization is spectrum segmenting system.Module major function is divided in the sun photopolymerization
It is that the sunlight light source of wide-band is divided into several narrow-band light sources, generates the narrowband pumping that each pumping operation material needs
Light, and coupling input at each pumping operation material after generate light carrier, while the light source natural filtration of useless frequency band is dropped
The thermal energy of low system inputs.
The function of pumping operational module is to generate multichannel light carrier, exists simultaneously multiple suctions in the pumping operational module
The different optical pumping light carrier generator of frequency range is received, heat control system and temperature-sensing system is configured at pumping operation material, uses
Operation material temperature is pumped with control.Pumping operation material in the present invention uses to improve absorption efficiency and reduce heat consumption
Nanometer gradient doping means deploy to ensure effective monitoring and control of illegal activities to doped metal ion, and the operation material of nanometer gradient doping can be in axial realization
To the uniform pickup of incident light.
The core of pumping operational module is pumping operation material.Traditional pumping operation material is using Uniform Doped or has
Limit order Doping, this mode will cause pumping substance end face absorb thermal energy it is excessively high, pumping substance in, along incidence
Light is formed radially the temperature difference, causes Temperature grade thermal effect and end-face deformation thermal lensing effect, destruction work substance performance.Nanometer is gradually
The principle of varying doping is to make pump energy each section uniform pickup in working media, and then reduce using non-uniform doping
Heat is distributed unbalanced.In the case where not reducing total absorption efficiency, not only it had been avoided that local temperature was excessively high, but also can be to avoid
The generation of temperature step.
The major function of modulation communication module is to carry out shaping and defeated by modulate communications information to carrier wave, and to light beam
Out.Signal source, light carrier modulator and optical outputting system are configured in the modulation communication module.
Existing spectral unmixing technology is mainly used in the two or more narrow-band light sources of segmentation or monochromatic source,
It is different using the refractive index of each monochromatic source in the medium, each light source is spatially segregated from by prism, is regathered
In corresponding processing unit.
And sunlight belongs to wide spectrum light source, is unable to get the high narrow frequency range light source of isolation with conventional treatment mode, and
The effect of dispersion of prism dissipates the sunlight after convergence again, reduces output pumping optical power density, and then lead to system
Efficiency reduces.
As shown in figure 3, using it is multiple plating different medium films Transflective microscope groups at solar spectrum segmenting system, it is this
Design can make full use of the wavelength selection section between different medium film, isolate high power density from the sunlight after convergence,
The pump light source of narrow-band does not cause the secondary diverging of light source, and can leak out useless frequency range energy of light source naturally, reduces system
Accumulation of heat, system effective light energy loss is small.Based on the multichannel light carrier pump technology of solar spectrum segmentation, after segmentation
Sunlight can pump the operation material with different absorption spectrums, further increase the utilization rate of solar energy.Multichannel light
The advantages of carrier wave pump technology, resides in reduced energy waste when pumping single operation material, while avoiding due to pumping in vain
Ray energy operation material generates extra thermal energy, brings thermal control pressure to system.Pumping operation material is mixed using nanometer gradual change
Miscellaneous means processing, makes operation material that there is high-selenium corn efficiency and uniform heat to be distributed, reduces the thermal control pressure of system.Uniformly mix
Miscellaneous pumping operation material can form heat energy distribution unbalanced phenomena on incident light direction, generate heat close to the position of incidence end
Amount is high, and low far from incidence end position generation heat, the unbalanced of heat will lead to the reduction of operation material absorption efficiency, also results in
The light carrier quality decline of generation.
Nanometer gradient doping technology just refers on nanoscale, and the metal ion mixing concentration for pumping operation material is made to exist
It is incremented by incident light direction, so that pumping operation material is reduced absorption at the high-energy density of incidence end, in operation material
Portion's incident optical energy metric density, which is gradually reduced, is continuously increased absorption efficiency, to realize that the thermal energy of entire operation material is balanced.
Specifically, as shown in Figure 1, sun photopolymerization segmentation module includes: condenser system, sunlight tracking system, spectrum
Segmenting system, output coupling system.Specifically, as shown in Fig. 2, the condenser system is by Fresnel Lenses face and 3D-CPC optically focused
Chamber composition, the spectrum segmenting system mainly by one or more plating deielectric-coating Transflective microscope groups at.
As shown in figure 3, pumping operational module is mainly controlled by light on-off switch, sun light pumped laser, temperature sensing
System composition.As shown in figure 4, modulation communication area mainly by signal source, laser signal modulating system, optical shaping system and
Optical antenna composition.
Further, the work of the communication system that spatial light carrier generator is directly pumped based on sunlight in the present invention
It is as follows to make process:
Step 1: sunlight tracking system adjusts the direction in Fresnel Lenses face and 3D-CPC laser pump cavity according to position of sun,
Keep Fresnel Lenses face vertical with sunlight incident direction always；
Step 2: incident sunlight gathers by a focussing force in Fresnel Lenses face and the secondary of 3D-CPC laser pump cavity
Jiaozhuo is used, and the solar-pumped light source with high power density is formed；
Step 3: the solar-pumped light source of high power density successively by one or more plating deielectric-coating Transflective mirrors, makes
Spectrum is separated according to the demand of different pumping operation materials, is independently pumped convenient for subsequent each pumping operation material and is generated laser
Carrier wave；Wherein, sunlight pump light source is a full frequency band white noise light source, and the absorption frequency range of light carrier pumping operation material
Relative narrower, it is therefore desirable to which spectrum imaging is carried out to sun radiant；
Step 4: the pump light source after segmentation pumps simultaneously corresponding pumping operation material according to optical path shown in Fig. 4
Continuous laser carrier wave is generated, contains temperature sensor in each pump laser, when operating temperature is higher than the stabilization of operation material
When the state temperature upper limit, shutdown signal is sent to light on-off switch, cutting light source input by temperature sensing control system；
Step 5: the multi-path persistent laser carrier that pumping operational module generates enters modulation communication module and carries out laser signal
Modulation and transmitting, signal source generate modulated signal, and modulated signal is transferred to modulating system, and then is modulated to light carrier, adjust
Light carrier after system is after optical shaping through being sent by optical antenna to the external world.
Using the solar spectrum cutting techniques based on plating deielectric-coating reflection and transmission mirror, by solar spectrum according to different frequency range point
It separates.For the ease of subsequent pumping process.It is required that solar spectrum segmentation has accurate, low damage, the characteristic of low-power consumption.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (5)
1. a kind of communication system for directly pumping spatial light carrier generator based on sunlight characterized by comprising sunlight
Polymerization segmentation module, pumping operational module, modulation communication module；
The sun photopolymerization segmentation module is carried out for assembling solar energy, and solar energy according to different frequency ranges
Pumping operational module is transmitted to after segmentation；
The pumping operational module is used to the sunlight of segmentation being converted into multichannel light carrier；
In the carrier wave light beam that the modulation communication module is used to generate modulate communications information to the pumping operational module, and it is right
Light beam exports after carrying out shaping；
Wherein, the pumping operational module includes: light on-off switch (8), sun light pumped laser (9), by sun photopolymerization
The multichannel light source of segmentation module segmentation is inputted after being pumped respectively with corresponding pumping operation material by light on-off switch (8)
Sun light pumped laser (9), the sun light pumped laser (9) export after generating continuous laser carrier wave；The pumping work
Make substance are as follows: deploy to ensure effective monitoring and control of illegal activities treated pumping operation material to doped metal ion using nanometer gradient doping means；Nanometer
Gradient doping refers on nanoscale, is incremented by the metal ion mixing concentration for pumping operation material on incident light direction,
Make pump operation material reduces absorption at the high-energy density of incidence end, with operation material inside incident optical energy metric density by
It is decrescence small to be continuously increased absorption efficiency, to realize that the thermal energy of entire operation material is balanced；
Wherein, the sun light pumped laser (9) is provided with temperature sensing control system (10), when operating temperature is higher than work
When the steady state temperature upper limit of substance, shutdown signal is sent to light on-off switch (8), light by temperature sensing control system (10)
On-off switch (8) cuts off light source input.
2. the communication system according to claim 1 for directly pumping spatial light carrier generator based on sunlight, feature
It is, the sun photopolymerization segmentation module includes: sunlight tracking system (2), condenser system (1), spectrum segmenting system
(3), output coupling system (4)；Sunlight successively passes through the condenser system (1), sunlight tracking system (2), spectrum segmentation
System (3), output coupling system are transmitted to pumping operational module after (4).
3. the communication system according to claim 2 for directly pumping spatial light carrier generator based on sunlight, feature
It is, the condenser system (1) includes: Fresnel Lenses face (5) and 3D-CPC laser pump cavity (6), and sunlight is saturating by Fresnel
The convergence in 3D-CPC laser pump cavity (6) after mirror surface (5).
4. the communication system according to claim 2 for directly pumping spatial light carrier generator based on sunlight, feature
It is, the spectrum segmenting system (3) includes the Transflective mirror of multiple plating different medium films, and the Transflective mirror will pass through
The converging beam of sunlight tracking system (2) is separated, and multichannel pump light source is obtained.
5. the communication system according to claim 1 for directly pumping spatial light carrier generator based on sunlight, feature
Be, the modulation communication module include: signal source (11), laser signal modulating system (12), optical shaping system (13) with
And optical antenna (14), the laser signal modulating system (12) modulate sunlight according to the modulated signal that signal source (11) is sent
The continuous laser carrier wave that pump laser (9) generates, and after the signal modulated is sent to optical shaping system (13) shaping
It is outwardly sent by optical antenna (14).
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| CN106533562B (en) * | 2016-11-30 | 2019-03-29 | 上海卫星工程研究所 | Space multi-user's multi-standard satellite laser communications system and method |
| CN108879312B (en) * | 2018-06-20 | 2019-09-17 | 上海卫星工程研究所 | Solar-pumped optical-fiber laser amplification system |
| CN108696328B (en) * | 2018-06-20 | 2020-03-06 | 上海卫星工程研究所 | Sunlight pumping-based satellite laser coarse wavelength division multiplexing communication system |
| CN110649969B (en) * | 2019-09-24 | 2021-05-18 | 成都信息工程大学 | Ultra-low power consumption mirror reflection light communication device and method |
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| CN104663266A (en) * | 2015-02-26 | 2015-06-03 | 中国科学技术大学先进技术研究院 | Sunlight comprehensive utilization system of plant factory |
| CN105743578A (en) * | 2016-03-15 | 2016-07-06 | 王基民 | Simulated natural light illumination and communication technique |
| CN206290390U (en) * | 2016-11-11 | 2017-06-30 | 青海大学 | A kind of full spectrum electricity generation system of solar energy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104663266A (en) * | 2015-02-26 | 2015-06-03 | 中国科学技术大学先进技术研究院 | Sunlight comprehensive utilization system of plant factory |
| CN105743578A (en) * | 2016-03-15 | 2016-07-06 | 王基民 | Simulated natural light illumination and communication technique |
| CN206290390U (en) * | 2016-11-11 | 2017-06-30 | 青海大学 | A kind of full spectrum electricity generation system of solar energy |
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