CN206313780U - A kind of transceiver terminal of laser space communication networking - Google Patents
A kind of transceiver terminal of laser space communication networking Download PDFInfo
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- CN206313780U CN206313780U CN201621465548.4U CN201621465548U CN206313780U CN 206313780 U CN206313780 U CN 206313780U CN 201621465548 U CN201621465548 U CN 201621465548U CN 206313780 U CN206313780 U CN 206313780U
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Abstract
The utility model is a kind of transceiver terminal of laser space communication networking, transceiver terminal is optical antenna, achromatism half-wave plate, polarization beam splitter prism, the beam splitter for connecting successively, and the transmitted light path of beam splitter is to receiving signal sensor, reflected light path to arrowband detector.It is the linearly polarized light of polarization direction and achromatism half-wave plate quick shaft direction in 67.5 ° of angle to receive light beam.Arrowband detector only responds one of 2 kinds of wavelength, and feedback signal accesses laser transmitting system.It is P linearly polarized lights to receive light modulation after achromatism half-wave plate during operation, and beam splitter is reached through polarization beam splitter prism；Beam splitting extremely receives signal sensor and arrowband detector；Laser transmitting system presses the arrowband detector signal selection wavelength outgoing different from light is received.The utility model automatic identification receives optical wavelength, the selection launch wavelength different from light is received, and the free of each laser terminal is accessed with chance in realizing laser communication networking, and the optical antenna signal of transmit-receive sharing is unaffected.
Description
Technical field
The utility model is related to technical field of laser communication, specially a kind of transceiver terminal of laser space communication networking,
Accessed with chance with the free of each laser terminal in realizing laser communication networking.
Background technology
In laser space communication transceiver terminal, transmit/receive antenna is typically designed to a telescopic system, launches day
The effect of line is that the light beam sent after relay optical system integration beam is carried out into collimator and extender, expands the spot size of outgoing beam,
The angle of divergence of compression light beam, gain high is provided to launch light beam simultaneously.
Reception antenna then receives the laser beam of another terminal transmission, and size is closed into beam much larger than the light beam of detector, will
Beam energy is collected and is coupled on photo-detector, increases substantially the laser power energy density on detector, there is provided light high
Learn gain.
In free space laser communication, the selection of antenna system and design need to consider the characteristic of communications platform and
Systematic difference requirement.Based on the consideration for reducing volume, the laser terminal of long-distance transmissions typically all uses duplexer,
It is optically isolated to sending and receiving signal.Isolation method is mostly spectrum isolation, i.e. launch wavelength inconsistent with reception wavelength.For more piece
For point relaying, the network application of change in topology, transmitting-receiving wavelength is inconsistent will to bring complicated wavelength management problems, has a strong impact on
Node with meet access capability, therefore, it is necessary to take necessary measure with realize laser free terminal with meet access.
It is optically isolated for signal, it is mostly to use duplexer to reduce volume weight, isolation the most frequently used at present
Mode is that spectrum isolation, i.e. local terminal select different wavelength with opposite end signal beams.But for laser networking application, and network
Topology is not unalterable, and certain laser terminal may be interconnected from different other-end, therefore, different platform is not in network
Can not be chosen at random with the wavelength of nodal terminal.It is a conventional thinking that the prior wavelength to each link of network carries out planning, but
It is inapplicable with the vacant lot network application for accessing is met for requiring.
Utility model content
The purpose of this utility model is to design a kind of transceiver terminal of laser space communication networking, equipped with dual-wavelength laser letter
Number source and only respond a kind of arrowband detector of wavelength light, can automatic identification receive optical wavelength, automatically select and receive optical wavelength
Different wavelength of transmitted light, realizes that the free of each laser terminal is accessed with chance in laser communication networking.
A kind of design of the transceiver terminal of laser space communication networking of the utility model is as follows：Including Laser emission system
System, collimation lens, optical antenna and reception signal sensor, optical antenna are used as transmitting antenna and reception antenna simultaneously, this
Utility model also includes the polarizer, polarization beam splitter prism, achromatism half-wave plate, beam splitter, focus lamp and arrowband detector, optics
Antenna receives the light beam arrival achromatism half-wave plate that other side launches, and it is polarization direction and achromatism half to receive light beam
Wave plate quick shaft direction in 67.5 ° of angles linearly polarized lights, the linearly polarized light of reception by after the achromatism half-wave plate, transmitted light quilt
The linearly polarized light of P polarization is modulated to, this linearly polarized light is reflexed to beam splitter, beam splitting without loss after reaching polarization beam splitter prism
Most of light beam is transmitted through prime focus mirror by mirror, into signal sensor is received, beam splitter reflexes to fraction light beam auxiliary poly-
Burnt mirror enters arrowband detector.Signal sensor is received to wavelength X1And λ2Light respond, by receive light be all converted to reception
Electric signal；Arrowband detector response wave length λ1And wavelength X2In one；The signal of arrowband detector accesses Laser emission system
System.Laser transmitting system includes two laser signal sources and 2 narrow band pass filters being engaged with 2 laser signal sources respectively,
The wavelength of dual-laser signal source is respectively λ1And λ2.2 output light path same amplifiers of correspondence of narrow band pass filter, after amplification
Signal beams enter collimation lens.Laser transmitting system is different from signal wavelength is received according to the signal behavior of arrowband detector
Laser signal source works, the signal beams that laser signal source sends by its optical filter, enter collimation lens after amplified device again.
Laser beam after collimated collimated turns into S-polarization light by the polarizer, and S-polarization light is without loss transmitted through polarization beam splitting rib
Mirror, the quick shaft direction of achromatism half-wave plate and the angle of S-polarization light are 22.5 °, and S-polarization light after achromatism half-wave plate by transmiting
Modulation light out is linearly polarized light, and the polarization direction of polarization direction and the incident ray polarized light for receiving is in 45° angle, laser hair
The polarised light of the laser beam conversion that the system of penetrating sends is launched into optical antenna.
The splitting ratio of the beam splitter is transmitted light:Reflected light=(9:1)~(7:3).
The wavelength X1And λ2Meet 20nm ＜ | λ1-λ2| ＜ 400nm, because a width of 10nm of band of general narrow band pass filter,
Two wavelength at least differ 2 times of bandwidth, and two wavelength are just independent of each other；While the wave-length coverage of achromatism half-wave plate is in 400nm, therefore
Two wavelength differences are no more than this value.
The optical antenna is any in transmitted light antenna, reflective optic antenna and refraction-reflection type optical antenna
Kind.
When a kind of transceiver terminal of laser space communication networking of the utility model runs, local terminal optical antenna receives opposite end hair
Penetrate the optical signal for coming.The optical signal that optical antenna is received is through the linearly polarized light that P polarization is modulated to after achromatism half-wave plate, warp
Polarization beam splitter prism is reflexed to up to beam splitter.
The fraction of the reception optical signal for reaching is reflexed to auxiliary focus lamp, focuses on arrowband detector, arrowband by beam splitter
Detector response wave length λ1And wavelength X2In one, for wavelength recognition；Its feedback signal sends into laser transmitting system；
The major part for receiving optical signal is transmitted through prime focus mirror, focuses on reception signal sensor, receives signal sensor
To wavelength X1And λ2Light respond, for detect receive signal；
Beam splitter will be transmitted and receive the 70~90% of optical signal, is reflected remaining and is received optical signal.
Laser transmitting system is identified according to the feedback signal of arrowband detector to the wavelength for receiving light, narrow receiving
When having the feedback signal of response with detector, then judge that local terminal reception optical wavelength wavelength corresponding with arrowband detector is identical,
When receiving the feedback signal without response of arrowband detector, then judge that local terminal receives light wave a length of corresponding with arrowband detector
The different another wavelength of wavelength.
The feedback signal that it sends when arrowband detector is provided with response is " 1 ", and feedback signal is " 0 " during without response, is swashed
When light emission system receives feedback signal for " 1 ", i.e., arrowband detector has response to receiving light, narrow when feedback signal is " 0 "
Band detector is to receiving light without response.
According to the wavelength of the reception optical signal for being recognized, the selection of local terminal laser transmitting system is different from optical wavelength is received to swash
Optical signal source works, and the optical signal that the laser signal source sends reaches collimation lens after piece, amplifier after filtering, is passed through after collimation
The polarizer is crossed as S-polarization light, S-polarization light enters back into achromatism half-wave plate without loss transmitted through polarization beam splitter prism, transmitted
Modulation light out is linearly polarized light, and the polarization direction of polarization direction and the incident ray polarized light for receiving is in 45° angle, Ran Houjing
Cross optical antenna outgoing.
Compared with prior art, a kind of advantage of the transceiver terminal of laser space communication networking of the utility model is：1st, exist
In laser communication networking, network topology structure is varied, and certain laser terminal may be interconnected from different other-ends, this receipts
Hair terminal is furnished with dual-wavelength laser signal source, can automatic identification receive optical wavelength, automatically select and receive the different transmittings of wavelength
Wavelength, realizes that the free of each laser terminal is accessed with chance in laser communication networking；2nd, because sending and receiving signal light wavelength is different
Isolation, the optical antenna signal of the system transmit-receive sharing receives unaffected；And because laser beam bandwidth used is extremely narrow, Bu Huigan
Disturb and have influence on adjacent laser link；3rd, device used by this terminal is the element of low-power consumption lightweight, to the volume power consumption of terminal
The influence that weight band comes is relatively limited, simple structure, low cost, small volume, it is easy to promote the use of.
Brief description of the drawings
Fig. 1 is the transceiver terminal example structure schematic diagram of this laser space communication networking；
Fig. 2 is the transceiver terminal embodiment concrete application schematic diagram of this laser space communication networking.
In figure marked as：
1st, optical antenna, 2, achromatism half-wave plate, 3, polarization beam splitter prism, 4, the polarizer, 5, collimation lens, 6, laser hair
Penetrate system, 7, beam splitter, 8, prime focus mirror, 9, receive signal sensor, 10, auxiliary focus lamp, 11, arrowband detector.
Specific embodiment
The transceiver terminal embodiment of this laser space communication networking is as shown in figure 1, saturating including laser transmitting system 6, collimation
Mirror 5, optical antenna 1, the polarizer 4, polarization beam splitter prism 3, achromatism half-wave plate 2, beam splitter 7, prime focus mirror 8, auxiliary focus lamp
10th, arrowband detector 11 and reception signal sensor 9, optical antenna 1 are used as transmitting antenna and reception antenna, this example light simultaneously
Antenna 1 is transmitted light antenna.This example optical antenna 1 receives the light beam arrival achromatism half-wave plate 2 that other side launches,
Received light beam is the linearly polarized light of polarization direction and the quick shaft direction of achromatism half-wave plate 2 in 67.5 ° of angle, and the line of reception is inclined
By the way that after the achromatism half-wave plate 2, transmitted light is modulated to the linearly polarized light of P polarization, this linearly polarized light reaches polarization point to the light that shakes
Reflexed to beam splitter 7 after beam prism 3 without loss, 90% reception light is transmitted through prime focus mirror 8 through beam splitter 7, into connecing
Signal sensor 9 is received, 10% light reflexes to auxiliary focus lamp 10 and enters arrowband detector 11 through beam splitter 7.Receive signal detection
Device 9 is to wavelength X1And λ2Light respond, light will be received and is all converted to the electric signal of reception；11 sound of this example arrowband detector
Answer wavelength X1；The feedback signal of arrowband detector 11 accesses laser transmitting system 6.Laser transmitting system 6 includes two laser letters
Number source and 2 narrow band pass filters being engaged with 2 laser signal sources respectively, the wavelength of dual-laser signal source are respectively λ1And λ2。
Laser transmitting system 9 swashs according to the laser signal source work different from signal wavelength is received of the signal behavior of arrowband detector 11
The signal beams that optical signal source sends by its optical filter, enter collimation lens 5 after amplified device again.Collimated lens 5 are collimated
Laser beam afterwards turns into S-polarization light by the polarizer 4, and S-polarization light is without loss transmitted through polarization beam splitter prism 3, achromatism half
The quick shaft direction of wave plate 2 and the angle of S-polarization light are 22.5 °, and S-polarization light is by the tune that is transmitted after achromatism half-wave plate 2
Light processed is linearly polarized light, and the polarization direction of polarization direction and the incident ray polarized light for receiving is in 45° angle, laser transmitting system 6
The polarised light of the laser beam conversion for sending is launched into optical antenna 1.
This example wavelength X1It is 1540nm, λ2It is 1560nm.
The concrete application of the transceiver terminal embodiment of laser space communication networking is as shown in Fig. 2 laser space communication networking
Transceiver terminal embodiment be installed on aircraft and base, the first base wavelength X1Launch optical signal to aircraft A, aircraft A is received
Wavelength X1Optical signal, select wavelength X2To the first base and aircraft B transmitting optical signals；Aircraft B receives the wavelength of aircraft A transmittings
λ2Optical signal, from wavelength X1To aircraft A, C and the second base transmitting optical signal, the aircraft C and small a length of λ of base received wave1's
Optical signal, from emission wavelength lambda2.Can neatly enter line link between each terminal to build, between each base, base and aircraft
Realize being accessed with chance between communications platform.
Above-described embodiment, only further describes to the purpose of this utility model, technical scheme and beneficial effect
Specific case, the utility model is not limited to this.All any modifications made within scope of disclosure of the present utility model,
Equivalent, improvement etc., are all contained within protection domain of the present utility model.
Claims (4)
1. a kind of transceiver terminal of laser space communication networking, including laser transmitting system (6), collimation lens (5), optical antenna
(1) and receive signal sensor (9), optical antenna (1) is while be used as transmitting antenna and reception antenna, it is characterised in that：
Also include that the polarizer (4), polarization beam splitter prism (3), achromatism half-wave plate (2), beam splitter (7), focus lamp and arrowband are visited
Device (11) is surveyed, optical antenna (1) receives the light beam arrival achromatism half-wave plate (2) that other side launches, receives light beam
It is polarization direction and achromatism half-wave plate (2) quick shaft direction in 67.5 ° of linearly polarized lights of angle, the linearly polarized light of reception was by should
After achromatism half-wave plate (2), transmitted light is modulated to the linearly polarized light of P polarization, and this linearly polarized light reaches polarization beam splitter prism (3)
Reflexed to beam splitter (7) without loss afterwards, most of light beam is transmitted through prime focus mirror (8), believed into reception by beam splitter (7)
Fraction light beam is reflexed to auxiliary focus lamp (10) and enters arrowband detector (11) by number detector (9), beam splitter (7)；Receive letter
Number detector (9) is to wavelength X1And λ2Light respond, light will be received and is all converted to the electric signal of reception；Arrowband detector
(11) a response wave length λ1And wavelength X2In one；The signal of arrowband detector (11) accesses laser transmitting system (6)；Laser
2 narrow band pass filters that emission system (6) is engaged including two laser signal sources and respectively with 2 laser signal sources, two swash
The wavelength of optical signal source is respectively λ1And λ2；Laser transmitting system (6) is believed according to the signal behavior of arrowband detector (11) with reception
The different laser signal source work of number wavelength, the signal beams that laser signal source sends are by its optical filter, again after amplified device
Into collimation lens (5), the laser beam after collimation by the polarizer (4) as S-polarization light, S-polarization light without loss transmitted through
Polarization beam splitter prism (3), the quick shaft direction of achromatism half-wave plate (2) and the angle of S-polarization light are 22.5 °, and S-polarization light is by disappearing
The modulation light transmitted after aberration half-wave plate (2) is linearly polarized light, and polarization direction is inclined with the incident ray polarized light for receiving
Direction shake in 45° angle, the polarised light of the laser beam conversion that laser transmitting system (6) sends is launched into optical antenna (1).
2. the transceiver terminal of laser space communication networking according to claim 1, it is characterised in that：
The splitting ratio of the beam splitter (7) is transmitted light:Reflected light=(9:1)~(7:3).
3. the transceiver terminal of laser space communication networking according to claim 1, it is characterised in that：
The wavelength X1And λ2Meet 20nm ＜ | λ1-λ2| ＜ 400nm.
4. the transceiver terminal of laser space communication networking according to claim 1, it is characterised in that：
The optical antenna (1) is transmitted light antenna, any one in reflective optic antenna and refraction-reflection type optical antenna.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621465548.4U CN206313780U (en) | 2016-12-29 | 2016-12-29 | A kind of transceiver terminal of laser space communication networking |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621465548.4U CN206313780U (en) | 2016-12-29 | 2016-12-29 | A kind of transceiver terminal of laser space communication networking |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788758A (en) * | 2016-12-29 | 2017-05-31 | 中国电子科技集团公司第三十四研究所 | A kind of transceiver terminal and operation method of laser space communication networking |
| CN108663758A (en) * | 2018-04-10 | 2018-10-16 | 中国科学院上海技术物理研究所 | A kind of free space laser coupled to single mode optical fiber device and method |
| CN109150317A (en) * | 2018-10-30 | 2019-01-04 | 宁波光舟通信技术有限公司 | A kind of reception system of Communication ray |
| CN111076831A (en) * | 2019-12-05 | 2020-04-28 | 常州大学 | Laser antenna wavefront detection system for space laser communication equipment |
| CN112564793A (en) * | 2020-12-07 | 2021-03-26 | 长春理工大学 | One-point multiple access space laser communication networking terminal and system |
-
2016
- 2016-12-29 CN CN201621465548.4U patent/CN206313780U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788758A (en) * | 2016-12-29 | 2017-05-31 | 中国电子科技集团公司第三十四研究所 | A kind of transceiver terminal and operation method of laser space communication networking |
| CN106788758B (en) * | 2016-12-29 | 2023-08-29 | 中国电子科技集团公司第三十四研究所 | Receiving and transmitting terminal of space laser communication networking and operation method |
| CN108663758A (en) * | 2018-04-10 | 2018-10-16 | 中国科学院上海技术物理研究所 | A kind of free space laser coupled to single mode optical fiber device and method |
| CN108663758B (en) * | 2018-04-10 | 2019-07-23 | 中国科学院上海技术物理研究所 | A kind of free space laser coupled to single mode optical fiber device and method |
| CN109150317A (en) * | 2018-10-30 | 2019-01-04 | 宁波光舟通信技术有限公司 | A kind of reception system of Communication ray |
| CN111076831A (en) * | 2019-12-05 | 2020-04-28 | 常州大学 | Laser antenna wavefront detection system for space laser communication equipment |
| CN112564793A (en) * | 2020-12-07 | 2021-03-26 | 长春理工大学 | One-point multiple access space laser communication networking terminal and system |
| CN112564793B (en) * | 2020-12-07 | 2022-04-12 | 长春理工大学 | One-point multiple access space laser communication networking terminal and system |
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Effective date of registration: 20230524 Address after: 541004 No. 98, Liuhe Road, Guilin, the Guangxi Zhuang Autonomous Region Patentee after: NO 34 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY Group CORPORATION (CETC) Patentee after: GUILIN XINTONG TECHNOLOGY Co.,Ltd. Address before: 541004 No. 98, Liuhe Road, Guilin, the Guangxi Zhuang Autonomous Region Patentee before: NO 34 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY Group CORPORATION (CETC) Patentee before: GUILIN DAWEI COMMUNICATIONS TECHNOLOGIES Co. Patentee before: GUILIN XINTONG TECHNOLOGY Co.,Ltd. |
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