CN107707308A - High reliability space division multiplexing laser communication antenna under the conditions of dynamic rotary - Google Patents
High reliability space division multiplexing laser communication antenna under the conditions of dynamic rotary Download PDFInfo
- Publication number
- CN107707308A CN107707308A CN201710883869.9A CN201710883869A CN107707308A CN 107707308 A CN107707308 A CN 107707308A CN 201710883869 A CN201710883869 A CN 201710883869A CN 107707308 A CN107707308 A CN 107707308A
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- Prior art keywords
- layer optical
- antenna
- internal layer
- laser
- transmitting antenna
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Classifications
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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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/504—Laser transmitters using direct modulation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
-
- 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
-
- 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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
-
- 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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/691—Arrangements for optimizing the photodetector in the receiver
Abstract
High reliability space division multiplexing laser communication antenna under the conditions of dynamic rotary, belongs to wireless laser communication field, to solve problem of the prior art, data source connection communication laser one and telecommunication laser two；Outer layer optical transmitting antenna, internal layer optical transmitting antenna, internal layer optical receiver antenna and outer layer optical receiver antenna are sequentially coaxially set；Telecommunication laser one connects outer layer optical transmitting antenna by optical fiber, and fiber end face is located at the focal plane of outer layer optical transmitting antenna；Telecommunication laser two connects internal layer optical transmitting antenna by optical fiber, and fiber end face is located at the focal plane of internal layer optical transmitting antenna；High-speed photodetector one connects internal layer optical receiver antenna by multi-core fiber, and fiber end face is located at the focal plane of internal layer optical receiver antenna；High-speed photodetector two-way crosses multi-core fiber connection outer layer optical receiver antenna, and fiber end face is located at the focal plane of outer layer optical receiver antenna；Data storage connects high-speed photodetector one and high-speed photodetector two.
Description
Technical field
The present invention relates to high reliability laser communication antenna under the conditions of dynamic rotary, belong to wireless laser communication field.
Background technology
Wireless laser communication refers to directly carry out data, language at space (land or the outer space) as carrier wave using laser beam
Sound, a kind of technology of image information transmission, there is strong antijamming capability, traffic rate height, small volume, in light weight low with power consumption etc.
Advantage.High-rate information transmission is completed using laser space communication more in some rockets and station module at present, can be improved logical
Believe speed, decrease the trouble that optical fiber wiring tape comes.But existing laser space communication uses the mould of point-to-point communication more
Formula, once the optical fiber failure of connection antenna, communication will terminate completely, reliability is low.It is porous using the transmitting of conventional porous footpath for this
The method that footpath receives can preferably solve integrity problem, but on the one hand will increase volume weight, secondly in some dynamic rotaries
Under environment, in the case that such as load rotation, satellite is fixed, the transmitting terminal of multiple aperture will be unable to be aligned the switching of multiple aperture all the time
End, the problem of equally existing reliability.
China Patent Publication No. is CN103311790A, and patent name is a kind of " adaptive optical of laser beam bidirectional transmit-receive
Fibre coupling or collimator control system ", as shown in figure 1, including coupling or collimation lens 1, branch sleeve 2, location for optical fiber surface
Device 3, the first optical fiber 41, three fiber port circulators 5, the second optical fiber 42, the 3rd optical fiber 43, laser 6, photodetector 7, control
Platform 8 and high-voltage amplifier 9 processed, it can be directly used for laser communication, and optical signal is realized using the mode of fiber coupling to antenna
Bidirectional transmit-receive, patent can improve coupling efficiency using the method for adaptive optic fiber coupling.
However, there is the problem of reliability is low in the patent.Because optical fiber is the optical fiber by glass-pulling, in angle of bend
Spend it is small or when being impacted it is very fragile easy to break, the first optical fiber 41 in the patent once fractures, and the communication of system also will be vertical
When interrupt.
The content of the invention
The present invention is in order to solve the problems, such as that laser space communication system reliability is low in existing cabin, volume weight is big, there is provided
High reliability laser communication antenna under the conditions of a kind of dynamic rotary.
The present invention adopts the following technical scheme that：
High reliability laser communication antenna under the conditions of dynamic rotary, it includes telecommunication laser one, telecommunication laser two, number
According to source, outer layer optical transmitting antenna, internal layer optical transmitting antenna, internal layer optical receiver antenna, outer layer optical receiver antenna, high speed
Photodetector one, high-speed photodetector two, data storage and multi-core fiber；It is characterized in that data source connect respectively it is logical
Believe laser one and telecommunication laser two；Outer layer optical transmitting antenna, internal layer optical transmitting antenna, internal layer optical receiver antenna and
Outer layer optical receiver antenna is sequentially coaxially set；Telecommunication laser one connects outer layer optical transmitting antenna, optical fiber end by optical fiber
Face is located at the focal plane of outer layer optical transmitting antenna；Telecommunication laser two connects internal layer optical transmitting antenna, light by optical fiber
Fine end face is located at the focal plane of internal layer optical transmitting antenna；High-speed photodetector one connects internal layer optics by multi-core fiber
Reception antenna, fiber end face are located at the focal plane of internal layer optical receiver antenna；High-speed photodetector two-way crosses multi-core fiber
Outer layer optical receiver antenna is connected, fiber end face is located at the focal plane of outer layer optical receiver antenna；Data storage connects respectively
Connect high-speed photodetector one and high-speed photodetector two.
The outer layer optical transmitting antenna sequentially coaxially sets negative convergence lens one, positive convergence lens one, the recessed axial cone mirror of circle
One and circular convex shaft axicon lens one；The internal layer optical transmitting antenna sequentially coaxially sets negative collimation lens one and positive collimation lens one；
And the focal plane of internal layer optical transmitting antenna is between circular convex shaft axicon lens one and negative collimation lens one.
Outer layer optical receiver antenna sequentially coaxially sets circular convex shaft axicon lens two, the recessed axial cone mirror two of circle, the and of positive convergence lens two
Negative convergence lens two；Internal layer optical receiver antenna sequentially coaxially sets positive collimation lens one and negative collimation lens one；And internal layer light
The focal plane of reception antenna is positioned at negative between collimation lens one and circular convex shaft axicon lens two.
The telecommunication laser one and telecommunication laser two are 1550nm band lasers, can complete internal modulation function.
The bore of the outer layer optical transmitting antenna is more than the bore of the internal layer optical transmitting antenna, maintains bore
Difference.
The high-speed photodetector one and high-speed photodetector two are high speed indium gallium arsenic detector, using multi-core optical
Fine coupling high-speed photodetector.
The beneficial effects of the invention are as follows：
1) backup of point-to-point transmission passage is completed using the inside and outside nested antenna of space division multiplexing, specially internal layer antenna is sent out
Circular light spot is penetrated, outer layer antenna transmitting ring-shaped light spot, communication is spatially realized by way of space division multiplexing, and then improve system
System reliability.Volume and weight is reduced while nested mode improves reliability inside and outside using in addition.
2) it is directed under some dynamic rotary environment, such as telecommunication laser one, telecommunication laser two, data source, outer layer optics
Transmitting antenna, the entirety of internal layer optical transmitting antenna composition use sky when being rotated around outer layer optical transmitting antenna optical axis
Divide the inside and outside nested antenna of multiplexing will can guarantee that communication reliability and high-transmission efficiency.And conventional method is due to the transmitting of multiple aperture
Hold and will be unable to the problem of change-over terminal for being directed at multiple aperture all the time equally exists reliability.
3) received using large area multi-core fiber connection high-speed photodetector and internal layer optical receiver antenna, outer layer optics
Antenna, it is ensured that light transmissioning efficiency under dynamic rotary environment.
The present invention waits the fields such as laser communication to be with a wide range of applications in station module and in rocket cabin.
Brief description of the drawings
Fig. 1 is the schematic diagram of the single channel transmitting-receiving laser system based on optical fiber in the prior art.
Fig. 2 is the schematic diagram of high reliability space division multiplexing laser communication antenna under the conditions of dynamic rotary of the invention.
Fig. 3 is the schematic diagram of heretofore described outer layer optical transmitting antenna.
Fig. 4 is the schematic diagram of heretofore described internal layer optical transmitting antenna.
Fig. 5 is the cross section of nested antenna light path inside and outside the axial symmetry of the present invention.
Embodiment
The embodiment of the present invention is elaborated below in conjunction with the accompanying drawings.
As shown in Fig. 2 high reliability laser communication antenna under the conditions of dynamic rotary, including with lower component：Telecommunication laser
One 10, telecommunication laser 2 11, data source 12, outer layer optical transmitting antenna 13, internal layer optical transmitting antenna 14, internal layer optics connect
Receive antenna 15, outer layer optical receiver antenna 16, high-speed photodetector 1, high-speed photodetector 2 18 and data storage
19。
Data source 12 passes through cable while connection communication laser 1 and telecommunication laser 2 11.
Outer layer optical transmitting antenna 13 and internal layer optical transmitting antenna 14 are arranged in order along optical axis and common optical axis is placed, its
The inner 13-1 of negative convergence lens one of middle outer layer optical transmitting antenna 13, the 13-2 of positive convergence lens one, the recessed 13-3 of axial cone mirror one of circle, boss
The 13-4 common optical axis of axial cone mirror one is arranged in order, as shown in Figure 3.The inner negative 14-1 of collimation lens one of internal layer optical transmitting antenna 14, just
The 14-2 common optical axis of collimation lens one is arranged in order, as shown in Figure 4.And the focal plane of internal layer optical transmitting antenna 14 is located at circular convex shaft
Between the 13-4 of axicon lens one and the 14-1 of negative collimation lens one.Telecommunication laser 1 connects outer layer optical transmitting antenna by optical fiber
13, fiber end face is located at the focal plane of outer layer optical transmitting antenna 13.Telecommunication laser 2 11 connects internal layer light by optical fiber
Transmitting antenna 14 is learned, fiber end face is located at the focal plane of internal layer optical transmitting antenna 14.
Internal layer optical receiver antenna 15 and the common optical axis of outer layer optical receiver antenna 16 and with outer layer optical transmitting antenna 13 and
The optical axis of internal layer optical transmitting antenna 14 is aligned, and is arranged in order, wherein the inner circular convex shaft axicon lens two of outer layer optical receiver antenna 16
16-4, the recessed 16-3 of axial cone mirror two of circle, the 16-2 of positive convergence lens two, the 16-1 common optical axis of negative convergence lens two are arranged in order.Internal layer light
Learn the inner positive 15-2 of collimation lens one of reception antenna 15, the negative 15-1 common optical axis of collimation lens one is arranged in order.Wherein internal layer optics connects
The focal plane of receipts antenna 6 is positioned at negative between the 15-1 of collimation lens one and the 16-4 of circular convex shaft axicon lens two.High-speed photodetector 1
Internal layer optical receiver antenna 15 is connected by multi-core fiber, fiber end face is located at the focal plane of internal layer optical receiver antenna 15.
High-speed photodetector 2 18 connects outer layer optical receiver antenna 16 by multi-core fiber, and fiber end face is located at the reception of outer layer optics
The focal plane of antenna 16.Data storage 19 connects high-speed photodetector 1 simultaneously by cable and high speed optoelectronic detects
Device 2 18.
The course of work of high reliability laser communication antenna is as follows under the conditions of dynamic rotary：
Modulated signal is loaded into telecommunication laser 11 and telecommunication laser 22 by data source 12 by cable.Two after modulation
Road laser signal is transferred at antenna via optical fiber, and first via signal is saturating by the negative convergence of outer layer optical transmitting antenna 13 successively
Launch after the 13-1 of mirror one, the 13-2 of positive convergence lens one, the recessed 13-3 of the axial cone mirror one and 13-4 of circular convex shaft axicon lens one of circle.And second
Road signal collimates after the 14-1 of negative collimation lens one and the 14-2 of positive collimation lens one of internal layer optical transmitting antenna 14 to be launched
Go.After space propagation, first via signal is recessed by the 16-4 of circular convex shaft axicon lens two of outer layer optical receiver antenna 16, circle successively
The 16-3 of axial cone mirror two, the 16-2 of positive convergence lens two and the 16-1 of negative convergence lens two converge to the end face of multi-core fiber, and through excessive
Core fibre is transferred to the detection target surface of high-speed photodetector 2 18, completes data receiver.Second road signal passes through internal layer successively
The 15-2 of positive collimation lens one and the 15-1 of negative collimation lens one of optical receiver antenna 15 converge to the end face of multi-core fiber, and pass through
Multi-core fiber is transferred to the detection target surface of high-speed photodetector 1, completes data receiver.The He of high-speed photodetector 2 18
The data transfer of reception to data storage 19 is completed data storage by high-speed photodetector 1.
Fig. 5 is the cross section of the inside and outside nested antenna light path of the space division multiplexing of the present invention, and two paths of signals spatially adopts circle
The transmission of the Pattern completion space division multiplexing of shape hot spot and ring-shaped light spot, can improve reliability.
By theoretical calculation, outer layer communication link light transmissioning efficiency is constant under the conditions of dynamic rotary, and about 74%；Internal layer leads to
Believe that link light transmissioning efficiency is constant, about 80%.Communication is can guarantee that compared to the transmitting of conventional porous footpath and method of reseptance, the present invention
Reliability and high-transmission efficiency.
Claims (6)
1. high reliability laser communication antenna under the conditions of dynamic rotary, it includes telecommunication laser one (10), telecommunication laser two
(11), data source (12), outer layer optical transmitting antenna (13), internal layer optical transmitting antenna (14), internal layer optical receiver antenna
(15), outer layer optical receiver antenna (16), high-speed photodetector one (17), high-speed photodetector two (18), data storage
Device (19) and multi-core fiber (20)；It is characterized in that
Data source (12) difference connection communication laser one (10) and telecommunication laser two (11)；
Outer layer optical transmitting antenna (13), internal layer optical transmitting antenna (14), internal layer optical receiver antenna (15) and outer layer optics
Reception antenna (16) is sequentially coaxially set；
Telecommunication laser one (10) connects outer layer optical transmitting antenna (13) by optical fiber, and fiber end face is located at outer layer optical emitting
The focal plane of antenna (13)；Telecommunication laser two (11) connects internal layer optical transmitting antenna (14), fiber end face by optical fiber
Focal plane positioned at internal layer optical transmitting antenna (14)；
High-speed photodetector one (17) connects internal layer optical receiver antenna (15) by multi-core fiber, and fiber end face is located at internal layer
The focal plane of optical receiver antenna (15)；High-speed photodetector two (18) connects outer layer optics by multi-core fiber and receives day
Line (16), fiber end face are located at the focal plane of outer layer optical receiver antenna (16)；
Data storage (19) connects high-speed photodetector one (17) and high-speed photodetector two (18) respectively.
2. high reliability laser communication antenna under the conditions of dynamic rotary according to claim 1, it is characterised in that described outer
Layer optical transmitting antenna (13) sequentially coaxially sets negative convergence lens one (13-1), positive convergence lens one (13-2), the recessed axial cone of circle
Mirror one (13-3) and circular convex shaft axicon lens one (13-4)；The internal layer optical transmitting antenna (14) sequentially coaxially sets negative collimation lens
One (14-1) and positive collimation lens one (14-2)；And the focal plane of internal layer optical transmitting antenna (14) is located at circular convex shaft axicon lens one
Between (13-4) and negative collimation lens one (14-1).
3. high reliability laser communication antenna under the conditions of dynamic rotary according to claim 1, it is characterised in that outer light
Learn reception antenna (16) and circular convex shaft axicon lens two (16-4), the recessed axial cone mirror two (16-3) of circle, positive convergence lens two are sequentially coaxially set
(16-2) and negative convergence lens two (16-1)；Internal layer optical receiver antenna (15) sequentially coaxially sets positive collimation lens one (15-2)
With negative collimation lens one (15-1)；And the focal plane of internal layer optical receiver antenna (6) is located at negative collimation lens one (15-1) and circle
Between protruding shaft axicon lens two (16-4).
4. high reliability laser communication antenna under the conditions of dynamic rotary according to claim 1, it is characterised in that described logical
Believe that laser one (10) and telecommunication laser two (11) are 1550nm band lasers, internal modulation function can be completed.
5. high reliability laser communication antenna under the conditions of dynamic rotary according to claim 1, it is characterised in that described outer
The bore of layer optical transmitting antenna (13) is more than the bore of the internal layer optical transmitting antenna (14), and it is poor to maintain bore.
6. high reliability laser communication antenna under the conditions of dynamic rotary according to claim 1, it is characterised in that the height
Fast photodetector one (17) and high-speed photodetector two (18) are high speed indium gallium arsenic detector, are coupled using multi-core fiber
High-speed photodetector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710883869.9A CN107707308B (en) | 2017-09-26 | 2017-09-26 | High reliability space division multiplexing laser communication antenna under the conditions of dynamic rotary |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710883869.9A CN107707308B (en) | 2017-09-26 | 2017-09-26 | High reliability space division multiplexing laser communication antenna under the conditions of dynamic rotary |
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| Publication Number | Publication Date |
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| CN107707308A true CN107707308A (en) | 2018-02-16 |
| CN107707308B CN107707308B (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710883869.9A Active CN107707308B (en) | 2017-09-26 | 2017-09-26 | High reliability space division multiplexing laser communication antenna under the conditions of dynamic rotary |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856890A (en) * | 2020-07-20 | 2020-10-30 | 中国科学院长春光学精密机械与物理研究所 | Focusing optical system and extreme ultraviolet light generating system |
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|---|---|---|---|---|
| CN101282175A (en) * | 2008-05-16 | 2008-10-08 | 西安理工大学 | Free space MIMO optical communication system based on vertical demixing time space |
| CN101729216A (en) * | 2009-06-30 | 2010-06-09 | 香港应用科技研究院有限公司 | Optimized detection of multiple-antenna spatial multiplexing |
| CN103311790A (en) * | 2013-05-03 | 2013-09-18 | 中国科学院光电技术研究所 | Self-adaptive optical fiber coupler or collimator control system capable of bilaterally receiving and transmitting laser beams |
| CN105282630A (en) * | 2015-09-10 | 2016-01-27 | 深圳大学 | Novel vortex Dammann grating model and dynamic reconstructible routing system |
| CN103209022B (en) * | 2013-02-22 | 2016-05-25 | 江苏海虹电子有限公司 | Space optical coupling sniffer based on fiber array |
| CN106664194A (en) * | 2014-04-04 | 2017-05-10 | 尼克根合伙Ip有限责任公司 | System and method for communication using orbital angular momentum with multiple layer overlay modulation |
-
2017
- 2017-09-26 CN CN201710883869.9A patent/CN107707308B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101282175A (en) * | 2008-05-16 | 2008-10-08 | 西安理工大学 | Free space MIMO optical communication system based on vertical demixing time space |
| CN101729216A (en) * | 2009-06-30 | 2010-06-09 | 香港应用科技研究院有限公司 | Optimized detection of multiple-antenna spatial multiplexing |
| CN103209022B (en) * | 2013-02-22 | 2016-05-25 | 江苏海虹电子有限公司 | Space optical coupling sniffer based on fiber array |
| CN103311790A (en) * | 2013-05-03 | 2013-09-18 | 中国科学院光电技术研究所 | Self-adaptive optical fiber coupler or collimator control system capable of bilaterally receiving and transmitting laser beams |
| CN106664194A (en) * | 2014-04-04 | 2017-05-10 | 尼克根合伙Ip有限责任公司 | System and method for communication using orbital angular momentum with multiple layer overlay modulation |
| CN105282630A (en) * | 2015-09-10 | 2016-01-27 | 深圳大学 | Novel vortex Dammann grating model and dynamic reconstructible routing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856890A (en) * | 2020-07-20 | 2020-10-30 | 中国科学院长春光学精密机械与物理研究所 | Focusing optical system and extreme ultraviolet light generating system |
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| CN107707308B (en) | 2019-10-11 |
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