CN209201088U - Bidirectional correcting is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving - Google Patents
Bidirectional correcting is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving Download PDFInfo
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- CN209201088U CN209201088U CN201821884460.5U CN201821884460U CN209201088U CN 209201088 U CN209201088 U CN 209201088U CN 201821884460 U CN201821884460 U CN 201821884460U CN 209201088 U CN209201088 U CN 209201088U
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Abstract
The utility model discloses the adaptive optics laser communication optic terminals that a kind of bidirectional correcting is total to aperture transmitting-receiving, which includes telescope, adaptive optics system, laser coupled system and laser transmitting system；The reception laser to come from targeted propagation, is propagated along main optical path, successively after the telescope, by adaptive optics system correction, eventually enters into the laser coupled system；From the laser transmitting system issue shoot laser, into main optical path after after the adaptive optics system, being corrected from the telescope issue.Above-mentioned terminal can also include smart tracking system, and between the telescope and the adaptive optics system, the correction of heeling error is carried out to the laser by main optical path.After laser transmitting system is placed in adaptive optics system by the utility model, correction while to transmitting-receiving laser may be implemented, while using aperture transmitting-receiving altogether, improving the utilization efficiency of equipment, system structure is more compact.
Description
Technical field
The utility model belongs to technical field of laser communication, the in particular terminal device of laser space communication, especially
It is related to the adaptive optics laser communication optic terminal that a kind of bidirectional correcting is total to aperture transmitting-receiving.
Background technique
Free space laser communication refers to the communication carried out as information carrier in free space using laser beam.Laser is logical
Letter has many advantages, such as traffic rate height, strong antijamming capability, without applying for electromagnetism licence plate, has in dual-use communication wide
Wealthy prospect.
In laser space communication link, the influence of atmospheric turbulance will receive by the laser link of atmosphere, such as star swash
Optical communication link etc..People overcome the disturbance of atmospheric turbulance by introducing adaptive optical technique.Currently, for satellite-ground link
For, adaptive optics system is predominantly located at ground surface end, is mainly used for the wavefront distortion correction of receiving branch, overcomes atmospheric turbulance
It influences, to improve the beam quality for receiving laser, is finally reached the purpose for improving downlink communication quality.For star two-way laser
For communication, the optical quality of shoot laser laser in outgoing of uplink is preferable, without the correction of adaptive optics, but passes through
After crossing plasmas channel, optical quality is but become very poor when being finally reached the targets such as satellite, and without adaptive in the targets such as satellite
Optical system is corrected it, causes communication quality poor.And adaptive optics system cost is installed in the targets such as satellite
Valuableness, technology are complicated.Therefore, for two-way lasercom link, there are receptions and transmitting laser by atmospheric turbulance
The problem of influence.
Utility model content
Laser and hair are received in view of this, correcting simultaneously the purpose of this utility model is to provide one kind in the same terminal
The adaptive optics laser communication optic terminal of laser is penetrated, it can be while to laser progress wavefront correction be received, to transmitting
Laser carries out predistortion correction, is finally reached while improving the effect of two-way laser communication quality.
The utility model provides the adaptive optics laser communication optic terminal that a kind of bidirectional correcting is total to aperture transmitting-receiving, packet
Include telescope, adaptive optics system, laser coupled system and laser transmitting system.
The reception laser to come from targeted propagation, is propagated along main optical path, successively by the telescope, described adaptive
After optical system, the laser coupled system is eventually entered into；The shoot laser issued from the laser transmitting system, into key light
It is successively issued after the adaptive optics system, the telescope behind road.
The adaptive optics system includes wave-front corrector and wave front detector, and the wave-front corrector is arranged in key light
Lu Zhong carries out wavefront correction to by the laser of main optical path.
It preferably, further include smart tracking system, between the telescope and the adaptive optics system；The essence
Tracking system includes essence tracking tilting mirror and heeling error detection system, and the essence tracking tilting mirror is arranged in main optical path, right
The correction of heeling error is carried out by the laser of main optical path.
Preferably, the laser coupled system can be based on fibre-optic terminus or space terminal；For fibre-optic terminus, including
Coupled lens and coupling optical fiber, the coupling optical fiber can be single mode optical fiber or multimode fibre；For space terminal, including coupling
Lens and photodetector；The optical fiber head of the coupling optical fiber or the target surface of the photodetector are located at the coke of coupled lens
Point on.
Preferably, the laser transmitting system can be based on optical fiber or space；To the laser hair based on optical fiber
System, including the output optical fiber and collimation lens are penetrated, the output optical fiber can be multimode or single mode.
Preferably, the laser transmitting system is signal laser emission system or beacon laser emission system or includes simultaneously
Signal laser emission system and beacon laser emission system.
Preferably, the laser transmitting system further includes one piece of gun sight, is located at after the collimation lens, for adjusting
Emit the direction of laser.
Preferably, the adaptive optics system further includes high-precision tracking tilting mirror, and the high-precision tracking tilting mirror is set
It sets in main optical path, is worked using the heeling error that the wave front detector obtains.
Preferably, in the adaptive optics system upstream there are one light source is debugged, for debugging adaptive optics system
System.
Preferably, in the wave front detector upstream, there are one Calibrating sources, for demarcating the zero point of wave front detector
Position.
Preferably, the wave-front corrector is that perhaps transmission-type piecemeal surface deformation mirror or continuous mirror surface become reflection-type
Shape mirror, including piezoelectric ceramics distorting lens, double piezoelectric ceramic distorting lens, electrostriction distorting lens, voice coil motor distorting lens, micromechanics
One of membrane deformable mirror, magnetostriction distorting lens, electrostatic drive membrane deformable mirror, liquid crystal wavefront modulator；The Wavefront detecting
Device is microprism array Hartmann wave front sensor, microlens array Hartmann wave front sensor, rectangular pyramid Wavefront sensor, song
One of rate sensor, laser far field detector, four-quadrant photo detector, photodiode.
Compared with prior art, the utility model has remarkable advantage.Laser transmitting system be placed in adaptive optics it
Afterwards, it so that in the case where no additionally increase software and hardware, is corrected while realization to transmitting-receiving laser, not only overcomes atmosphere rapids
The influence to laser is received is flowed, influence of the atmospheric turbulance to transmitting laser is also overcomed, exempts and being disposed in target terminals such as satellites
The technical difficulty of adaptive optics system and expensive cost.System is improved the utilization efficiency of equipment, is made using aperture transmitting-receiving altogether
It is more compact to obtain system structure, reduces costs simultaneously.
Detailed description of the invention
Fig. 1 be an embodiment of the present invention provide a kind of bidirectional correcting be total to aperture transmitting-receiving adaptive optics laser lead to
Believe optic terminal schematic diagram；
Fig. 2 is an example structure schematic diagram of laser transmitting system；
Fig. 3 is the adaptive optics laser communication that aperture transmitting-receiving is total to according to the bidirectional correcting of another embodiment of the utility model
Optic terminal schematic diagram；
Fig. 4 is that the coupling efficiency of 1550nm single mode optical fiber changes with time feelings before and after adaptive optics system correction
Condition；
Fig. 5 is that cumulative probability of the coupling efficiency of 1550nm single mode optical fiber before and after adaptive optics system correction is distributed feelings
Condition.
Specific embodiment
It is practical below in conjunction with this to enable the purpose of this utility model, feature, advantage more obvious and understandable
The attached drawing of new embodiment, the technical solutions in the embodiments of the present invention are clearly and completely described, it is clear that is retouched
The embodiment stated is only the utility model a part of the embodiment, and not all embodiments.Based on the implementation in the utility model
Example, those skilled in the art's every other embodiment obtained under the premise of not doing creative work belong to practical
Novel protected range.
Fig. 1 is please referred to, Fig. 1 is the adaptive optical that a kind of bidirectional correcting provided by the embodiment of the utility model is total to aperture transmitting-receiving
The schematic diagram of laser communication optic terminal is learned, the adaptive optics laser communication optic terminal that bidirectional correcting is total to aperture transmitting-receiving includes
Telescope 100, smart tracking system 101, adaptive optics system 102, laser coupled system 103 and laser transmitting system.Wherein,
Smart tracking system 101 is optional.Laser transmitting system in the present embodiment includes signal transmitting system 104 and beacon emissions system
System 105.
The reception laser to come from targeted propagation, is propagated through main optical path, successively by telescope 100, smart tracking system
101, after adaptive optics system 102, laser coupled system 103 is eventually entered into；
From laser transmitting system issue shoot laser, into main optical path after successively by adaptive optics system 102, essence
It is issued after tracking system 101 and telescope 100.
Smart tracking system 101 includes essence tracking tilting mirror 1011 and heeling error detection system 1012, essence tracking tilting mirror
1011 are arranged in main optical path, and the correction of heeling error is carried out to the laser by main optical path；
Adaptive optics system 102 includes wave-front corrector 1021 and wave front detector 1022, and wave-front corrector 1021 is set
It sets in main optical path, carries out wavefront correction to by the laser of main optical path.Optionally, adaptive optics system 102 further includes height
Essence tracking tilting mirror 1023, is arranged in main optical path, is worked using the heeling error that wave front detector 1022 obtains, with
Further increase the precision of tracking correction.Adaptive optics system 102 in the present embodiment includes wave-front corrector 1021, wave
Preceding detector 1022 and high-precision tracking tilting mirror 1023.
As shown in Figure 1, being provided with telescope 100, essence tracking tilting mirror 1011,2, second points of the first spectroscope in main optical path
Light microscopic 3, the first reflecting mirror 4, the second reflecting mirror 5, high-precision tracking tilting mirror 1023, wave-front corrector 1021, the first off-axis parabolic
Face reflecting mirror 6, the second off-axis parabolic mirror 7, third spectroscope 8, the 5th spectroscope 10, pass through the saturating of these optical elements
/ reflex is penetrated, laser is received from telescope 100 and enters laser coupled system 103, outgoing signal laser emits from signal is
After system 104 issues, main optical path is entered after the reflection of the 5th spectroscope 10, is finally issued from telescope 100；Beacon is emitted to swash
Light is after the sending of beacon emissions system 105, by the reflection of the 4th spectroscope 9, enters main optical path through third spectroscope 8, most
It is issued afterwards from telescope 100.It should be pointed out that main optical path shown in FIG. 1 is only schematical, those skilled in the art can
To expect utilizing the Beam Controls such as plane mirror, curved reflector, prism, lens, spectroscope, wave plate, optical filter, polarizing film
Element is arranged differently than main optical path.
Reception laser can contain only reception signal laser and perhaps contain only reception beacon laser or receive signal laser
It is provided simultaneously with beacon laser is received.The present embodiment is chosen the two and is provided simultaneously with, and the reception signal laser of 1550nm is by looking in the distance
Mirror 100, by essence tracking tilting mirror 1011, the first spectroscope 2, the second spectroscope 3, the first reflecting mirror 4, the second reflecting mirror 5, high-precision
Track tilting mirror 1023, wave-front corrector 1021, the first off-axis parabolic mirror 6, the second off-axis parabolic mirror 7, the
The reflection of three spectroscopes 8, then after the transmission of the 5th spectroscope 10, into laser coupled system 103.The reception beacon of 808nm swashs
Light is propagated after the entrance of telescope 100 along main optical path, and when reaching the first spectroscope 2,10% optical power is through the first light splitting
Mirror 2 enter heeling error detection system 1012 carry out heeling error detection, remaining 90% continue on main optical path propagation, work as arrival
When third spectroscope 8, all through third spectroscope 8, then through the 4th spectroscope 9 and the 6th spectroscope 11 is penetrated, into wave
Preceding detector 1022 carries out the measurement of wavefront distortion.
When containing only reception signal laser in reception laser, the first spectroscope 2 and third spectroscope 8 penetrate one respectively
Tap receives signal laser, allows heeling error detection system 1012 and wave front detector 1022 to carry out heeling error respectively and wavefront is abnormal
The detection of change；When containing only reception beacon laser in reception laser, the first spectroscope 2 and third spectroscope 8 penetrate one respectively
Part receives beacon laser, and heeling error detection system 1012 and wave front detector 1022 is allowed to carry out heeling error and wavefront respectively
The detection of distortion；When receiving in laser simultaneously containing reception signal laser with beacon laser is received, the first spectroscope 2 and third
Spectroscope 8 can according to need, and either receives beacon laser through a part or receives signal laser through a part, allows and incline
Oblique error detection system 1012 and wave front detector 1022 carry out the detection of heeling error and wavefront distortion respectively.
Laser coupled system 103 can be based on fibre-optic terminus or space terminal；For fibre-optic terminus, including coupled lens
1031 can be single mode optical fiber or multimode fibre with coupling optical fiber 1032, coupling optical fiber；For space terminal, including coupled lens
And photodetector, such as PIN detector；The target surface of the optical fiber head or photodetector that couple optical fiber 1032 is located at coupled lens
In 1031 focus.
The preferred laser coupled system 103 of the present embodiment is to be received signal laser based on 1550nm single mode optical fiber and be coupled into
After entering 1550nm single mode optical fiber, into optical transmitter and receiver is received, the demodulation for receiving signal is carried out.
Signal transmitting system 104 or beacon emissions system 105 can be based on optical fiber or space；To based on optical fiber
Signal transmitting system 104, including the first the output optical fiber 1041 and the first collimation lens 1042；To the beacon emissions based on optical fiber
System 105, including the second the output optical fiber 1051 and the second collimation lens 1052；First the output optical fiber 1041 or the second the output optical fiber
1051 can be multimode fibre or single mode optical fiber；To signal transmitting system 104 space-based, space laser is quasi- by second
After straight lens 1042 collimate, main optical path transmission is coupled by the 5th spectroscope 10；To beacon emissions system space-based
105, space laser is transmitted laggard after the second collimation lens 1052 collimation by the reflection of the 4th spectroscope 9 and third spectroscope 8
Become owner of optic path.
Referring to Fig.2, signal transmitting system 104 can also include one piece of first gun sight 1043, it is located at the second collimation lens
Direction after 1042, for adjustment signal transmitting laser；Beacon emissions system 105 can also include one piece of second gun sight
1053, it is located at after the second collimation lens 1052, for adjusting the direction of beacon emissions laser.
The signal transmitting system 104 that the present embodiment is chosen is emitted based on 1530nm single mode optical fiber, 1530nm laser
It is collimated through the second collimation lens 1042, then after the reflection of the first gun sight 1043, is coupled into through the 5th spectroscope 10
Enter in main optical path and propagate, is finally issued from telescope 100.The beacon emissions system 105 that the present embodiment is chosen is more based on 830nm
Mode fiber is emitted, and 830nm laser is collimated through the second collimation lens 1052, is then reflected by the second gun sight 1053
Afterwards, it is reflected through the 4th spectroscope 9, then is transmitted into main optical path and propagates through third spectroscope 8, finally issued from telescope 100.
It is worth noting that, the first the output optical fiber 1041 or the second the output optical fiber 1051 can be single or more while being emitted,
To improve transmission power.
The present embodiment is between adaptive optics system 102 and telescope 100, there are one light source 106 is debugged, refering to figure
1, for debugging adaptive optics system 102, the debugging light source 106 of the present embodiment is coupled into key light by the second spectroscope 3
In road.Debugging light source 106 is made of the first optical fiber laser 1061 and third collimation lens 1062, emits the parallel of 650nm
Light enters main optical path after the second spectroscope 3, wave front detector 1022 is eventually entered into through third spectroscope 8, for debugging
Adaptive optics system.
There are one Calibrating sources 107 in 1022 upstream of wave front detector for the present embodiment, for demarcating wave front detector
The Calibrating source 107 of dead-center position, the present embodiment is made of the second optical fiber laser 1071 and the 4th collimation lens 1072, transmitting
The directional light of 808nm enters in wave front detector 1022 after the 6th spectroscope 11.
It is worth noting that in the present invention, debugging light source 106 and Calibrating source 107 are optionally, can not have
Have, can be provided simultaneously with containing one of them or both.
Wave-front corrector 1021 can be that perhaps transmission-type can be piecemeal surface deformation mirror or continuous mirror surface to reflection-type
Distorting lens specifically can be piezoelectric ceramics distorting lens or double piezoelectric ceramic distorting lens or electrostriction distorting lens or voice coil
Motor distorting lens or micromachined membrane distorting lens or magnetostriction distorting lens or electrostatic drive membrane deformable mirror or liquid crystal wave
Preceding modulator.
Wave front detector 1022 can be microprism array Hartmann wave front sensor or microlens array Hartmann's wavefront
Sensor or rectangular pyramid Wavefront sensor or curvature sensor or laser far field detector or four-quadrant photo detector, or
Photodiode.When wave front detector 1022 uses microprism array Hartmann wave front sensor or microlens array Hartmann
When Wavefront sensor or rectangular pyramid Wavefront sensor or curvature sensor, type method, direct slope method is can be used in control algolithm
Deng classical adaptive optics algorithm；When wave front detector 1022 use laser far field detector or four-quadrant photo detector,
Or when photodiode, the control that parallel gradient descent algorithm etc. carries out adaptive optics is can be used in control algolithm.
Preferably, the wave-front corrector 1021 in the present embodiment chooses the reflective piezoelectric ceramics distorting lens of continuous surface type,
Wave front detector 1022 chooses microlens array Hartmann wave front sensor.Wave-front corrector 1021 has Unit 137, and wavefront is visited
Survey device 1022 is Hartmann wave front sensor, the rim of the mouth diameter array with 12 rows and 12 column, the correction of adaptive optics system 102
Frequency 1700Hz.
Telescope 100 can be reflective, refraction type or reflection and refraction is hybrid-type.Specifically, the present embodiment selects
Select the autocollimator 100 of bore Φ 600mm.
Essence tracking tilting mirror 1011 and wave-front corrector 1021 can be piezoelectric ceramics tilting mirror or double piezoelectric ceramic inclination
Mirror or electrostriction tilting mirror or voice coil motor tilting mirror or micromachined membrane tilting mirror or magnetostriction tilting mirror or quiet
Electric drive film tilting mirror or LCD space light modulator.Preferably, piezoelectric ceramics tilting mirror is selected.
Heeling error detection system 1012 is made of the 5th collimation lens 10122 and detector 10121, detector 10121
It can be CCD camera or CMOS camera or 4 quadrant detector or photodiode.Preferably, select CCD camera or
CMOS camera.
It is worth noting that, laser transmitting system can contain only signal transmitting system 104 or contain only beacon emissions
System 105 or both haves both at the same time.When laser transmitting system contains only signal transmitting system 104 or beacon emissions system 105
When, shoot laser enters the main optical path between the position of main optical path between wave-front corrector 1021 and laser coupled system 103
On.When laser transmitting system contains signal transmitting system 104 and beacon emissions system 105 simultaneously, outgoing signal laser and go out
Three kinds of situations can be divided by penetrating beacon laser and entering the position of main optical path: first, both between in wave-front corrector 1021 and swash
On main optical path between optically coupled system 103, at this time the position of signal transmitting system 104 and beacon emissions system 105 be can be with
It exchanges, Fig. 1 just belongs to this situation, and signal transmitting laser and beacon emissions laser are carried out by adaptive optics system 102
Predistortion correction；Second, outgoing signal laser enters between the position of main optical path in wave-front corrector 1021 and laser coupled system
On main optical path between 103, outgoing beacon laser enter between the position of main optical path in wave-front corrector 1021 and telescope 100 it
Between main optical path on, Fig. 3 just belongs to this situation, and signal, which emits laser, to carry out predistortion school by adaptive optics system 102
Just；Third, outgoing beacon laser enter between the position of main optical path between wave-front corrector 1021 and laser coupled system 103
On main optical path, outgoing signal laser enters the key light between the position of main optical path between wave-front corrector 1021 and telescope 100
On the road, beacon emissions laser can carry out predistortion correction by adaptive optics system 102.
Hereinafter, the adaptive optics laser communication optics that the bidirectional correcting that description is constituted such as Fig. 1 is total to aperture transmitting-receiving is whole
The course of work at end.
After establishing communication link, terminal receives the beacon laser of 808nm and the signal laser of 1550nm.Essence tracking
System 101 is started to work, and heeling error detection system 1012 persistently detects the beacon beam of 808nm, obtains the inclination of air link
Control information, then driving essence tracking tilting mirror 1011 continues working.
Then, adaptive optics system 102 is started to work, and lens array Hartmann wave front sensor 1022 constantly receives
The beacon beam of 808nm detects the wavefront distortion in air link at this time, while driving high-precision tracking tilting mirror 1023 and wavefront
Corrector 1021 works.The heeling error and wavefront distortion of received signal laser and beacon laser so are corrected,
Obtain good optical quality, it is calibrated after signal laser enter laser coupled system 103, be coupled into single mode optical fiber 1032
Enter afterwards and receive optical transmitter and receiver, carries out signal demodulation.Fig. 4 (" the Coupling Efficiency " of Fig. 4 longitudinal axis indicates coupling efficiency,
" Time (Seconds) " of horizontal axis indicates sampling time (unit: second), and " Without AO " is indicated without passing through adaptive optics
Correction, " With AO " indicate to correct by adaptive optics, and " Sampling Efficiency=200KHz " indicates sampling frequency
Rate is 200KHz) laser communication terminal provided in this embodiment is given in the case where atmospheric turbulence intensity R0=9cm, it couples
Situation of change of the efficiency with the time, sample frequency 200KHz.It is single in the case where the correction of no adaptive optics system 102
The average coupling efficiency of mode fiber is only 6.5%, and in the case where the correction of adaptive optics system 102, average coupling effect
Rate is 35%.Fig. 5 gives cumulative probability distribution (" the Cumulative Distribution of Fig. 5 longitudinal axis of coupling efficiency
Function " indicates that coupling efficiency, " the Coupling Efficiency " of horizontal axis indicate coupling efficiency), through adaptive optics system
After 102 correction of system, probability of the Single-Mode Fiber Coupling efficiency lower than 25% only has a ten thousandth, there is 99.99% probability in other words,
Coupling efficiency is all greater than 25%.
Laser is being received while being received, signal transmitting system 104 emits the laser of 1530nm, beacon emissions system
The laser of 105 transmitting 830nm, while entering in main optical path, when they are reflected by wave-front corrector 1021, beacon emissions swash
Light and signal transmitting laser are applied a wavefront distortion simultaneously, this wavefront distortion just wavefront with atmosphere in link at this time
Distortion conjugation；After they are reflected by high-precision tracking tilting mirror 1023 and essence tracking tilting mirror 1011 again, and folded on wavefront
An inclination shake is added, this inclination shake and the inclination of atmosphere in link at this time are shaken and be conjugated；When with predistortion and in advance
The beacon emissions laser and signal for tilting shake emit laser after the sending of telescope 100, generate work with the atmosphere in link
With, when its reach target when, obtain a good optical quality, for uplink capture, tracking and laser communication establish
Solid foundation.
So far, the function of the laser communication system of the bidirectional self-adaptive optical correction of total aperture transmitting-receiving is realized.
It may be noted that providing above embodiments just for the sake of description the purpose of this utility model, and it is not intended to limit this
The range of utility model.The scope of the utility model is defined by the following claims.The spirit and original of the utility model are not departed from
The various equivalent alterations and modifications managed and made should all cover within the scope of the utility model.
Claims (10)
1. the adaptive optics laser communication optic terminal that a kind of bidirectional correcting is total to aperture transmitting-receiving, it is characterised in that: described two-way
The adaptive optics laser communication optic terminal for correcting aperture transmitting-receiving altogether includes telescope, adaptive optics system, laser coupled
System and laser transmitting system；
The reception laser to come from targeted propagation, is propagated along main optical path, successively passes through the telescope, the adaptive optics
After system, the laser coupled system is eventually entered into；The shoot laser issued from the laser transmitting system, into after main optical path
Successively issued after the adaptive optics system, the telescope；
The adaptive optics system includes wave-front corrector and wave front detector, and the wave-front corrector is arranged in main optical path
In, wavefront correction is carried out to by the laser of main optical path.
2. bidirectional correcting according to claim 1 is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving, special
Sign is: further including smart tracking system, between the telescope and the adaptive optics system；The essence tracking system
Including smart tracking tilting mirror and heeling error detection system, the essence tracking tilting mirror is arranged in main optical path, to by key light
The laser on road carries out the correction of heeling error.
3. bidirectional correcting according to claim 1 is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving, special
Sign is: the laser coupled system can be based on fibre-optic terminus or space terminal；For fibre-optic terminus, including coupled lens
With coupling optical fiber, the coupling optical fiber can be single mode optical fiber or multimode fibre；For space terminal, including coupled lens and light
Electric explorer；The optical fiber head of the coupling optical fiber or the target surface of the photodetector are located in the focus of coupled lens.
4. bidirectional correcting according to claim 1 is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving, special
Sign is: the laser transmitting system can be based on optical fiber or space；To the laser transmitting system based on optical fiber, packet
The output optical fiber and collimation lens are included, the output optical fiber can be multimode or single mode.
5. bidirectional correcting according to claim 1 or 4 is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving,
Be characterized in that: the laser transmitting system is signal laser emission system or beacon laser emission system or swashs simultaneously comprising signal
Light emission system and beacon laser emission system.
6. bidirectional correcting according to claim 4 is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving, special
Sign is: the laser transmitting system further includes one piece of gun sight, is located at after the collimation lens, for adjusting transmitting laser
Direction.
7. bidirectional correcting according to claim 1 is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving, special
Sign is: the adaptive optics system further includes high-precision tracking tilting mirror, and the high-precision tracking tilting mirror is arranged in key light
Lu Zhong is worked using the heeling error that the wave front detector obtains.
8. bidirectional correcting according to claim 1 is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving, special
Sign is: in the adaptive optics system upstream there are one light source is debugged, for debugging adaptive optics system.
9. bidirectional correcting according to claim 1 is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving, special
Sign is: in the wave front detector upstream, there are one Calibrating sources, for demarcating the dead-center position of wave front detector.
10. bidirectional correcting according to claim 1 is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving, special
Sign is: the wave-front corrector is reflection-type perhaps transmission-type piecemeal surface deformation mirror or continuous mirror surface distorting lens, including
Piezoelectric ceramics distorting lens, double piezoelectric ceramic distorting lens, electrostriction distorting lens, voice coil motor distorting lens, micromachined membrane deformation
One of mirror, magnetostriction distorting lens, electrostatic drive membrane deformable mirror, liquid crystal wavefront modulator；The wave front detector is micro- rib
Lens array Hartmann wave front sensor, microlens array Hartmann wave front sensor, rectangular pyramid Wavefront sensor, curvature sensing
One of device, laser far field detector, four-quadrant photo detector, photodiode.
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| CN201821884460.5U CN209201088U (en) | 2018-11-16 | 2018-11-16 | Bidirectional correcting is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving |
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| CN201821884460.5U CN209201088U (en) | 2018-11-16 | 2018-11-16 | Bidirectional correcting is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347565A (en) * | 2018-11-16 | 2019-02-15 | 中国科学院光电技术研究所 | Bidirectional correcting is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving |
| CN111612835A (en) * | 2020-06-06 | 2020-09-01 | 重庆连芯光电技术研究院有限公司 | System and method suitable for extended target tilt tracking |
| CN111913189A (en) * | 2020-08-19 | 2020-11-10 | 深圳元戎启行科技有限公司 | Light emitting device and imaging device based on wavefront detection |
-
2018
- 2018-11-16 CN CN201821884460.5U patent/CN209201088U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347565A (en) * | 2018-11-16 | 2019-02-15 | 中国科学院光电技术研究所 | Bidirectional correcting is total to the adaptive optics laser communication optic terminal of aperture transmitting-receiving |
| CN111612835A (en) * | 2020-06-06 | 2020-09-01 | 重庆连芯光电技术研究院有限公司 | System and method suitable for extended target tilt tracking |
| CN111913189A (en) * | 2020-08-19 | 2020-11-10 | 深圳元戎启行科技有限公司 | Light emitting device and imaging device based on wavefront detection |
| CN111913189B (en) * | 2020-08-19 | 2023-06-20 | 深圳元戎启行科技有限公司 | Light emitting device and imaging device based on wavefront detection |
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