CN102857299A - Optical communication system and method - Google Patents
Optical communication system and method Download PDFInfo
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- CN102857299A CN102857299A CN201210301099XA CN201210301099A CN102857299A CN 102857299 A CN102857299 A CN 102857299A CN 201210301099X A CN201210301099X A CN 201210301099XA CN 201210301099 A CN201210301099 A CN 201210301099A CN 102857299 A CN102857299 A CN 102857299A
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Abstract
The invention discloses an optical communication system. The optical communication system comprises an information receiving part and an information sending part. The information receiving part comprises a light source and a detector, wherein the light source outputs light source signals. The information sending part comprises a spatial light modulator, wherein the spatial light modulator is used for receiving and modulating the light source signals, loading feedback information to the light source signals, and then reflecting the feedback information to the information receiving part. The detector can receive and modulate the reflected light source signals. The invention further discloses an optical communication method. The optical communication system disclosed by the invention combines the advantages of the microwave communication and optical fiber communication, and has the advantages of large capacity, high speed, good security, and safety and reliability. According to the optical communication system and method, optical fibers are not required to be paved, and the application is is flexible.
Description
Technical field
The application belongs to the communications field, particularly relates to a kind of optical communication system based on spatial light modulator and optical communication method.
Background technology
Present wireless telecommunication system, major part are based on the broadcast type principle.Satellite communication is present main means of communication.This communication modes by the outside emitting electromagnetic wave in base station, after relay station or satellite transfer, is received by terminal equipment.The shortcoming of this communication modes is, at first, needs base station or satellite system to cooperate system complex.Secondly, this is a kind of broadcast type system, and signal carries out nondirectional propagation at free space, is is easily intercepted and captured, and fail safe is relatively poor.Although can adopt various encryption methods, but still have potential safety hazard.The 3rd, the broadcast type communication needs high-power emission and relay, be difficult to system power dissipation is reduced, and the miniaturization of the system of realization.At last, this broadcast type communication causes information distortion, inefficacy easily by adjacent channel and external interference.And the optical fiber communication mode that another is widely used although can accomplish high speed, reliable and secret, to having relatively high expectations of environment, need to be built fibre system, can not set up at short notice.
In view of this, be necessary to provide a kind of novel communication system.
Summary of the invention
The object of the present invention is to provide a kind of optical communication system and optical communication method, it combines the advantage of microwave communication and optical fiber communication, both had large capacity, at a high speed, good confidentiality and safe and reliable advantage, do not need to lay again optical fiber, applying flexible.
For achieving the above object, the invention provides following technical scheme:
The present invention discloses a kind of optical communication system, comprising:
The information acceptance division, it comprises light source and detector, described light source output light source signal;
The information sending part, it comprises a spatial light modulator, this spatial light modulator receives described light signal and it is modulated, and feedback information is loaded on the described light signal back reflection to described information acceptance division, described detector receives the light signal that reflects and it is carried out demodulation.
As a further improvement on the present invention, described light source is semiconductor laser, and the operation wavelength of this semiconductor laser and described spatial light modulator is complementary.
As a further improvement on the present invention, described spatial light modulator is reflective Multiple Quantum Well spatial light modulator.
As a further improvement on the present invention, described information acceptance division also comprises automatic sensing tracing system, to realize aiming between described information acceptance division and the information sending part, sets up the communication link between described information acceptance division and the information sending part.
Preferably, described automatic sensing tracing system comprises sweeping device and feedback device, this feedback device between described information acceptance division and information sending part, communicate by letter beginning and finish in respectively described sweeping device is locked and starts.
Preferably, described sweeping device comprises that optical system, area array CCD, signal processor, data are processed and control software, servo-control system and rotating mechanism, described optical system is finished convergence, the processing to target beam, target imaging on area array CCD, thereby confirm the coordinate information of target; Signal processor is realized collection, quantification and the coding to the video information of CCD; Data are processed and control software is responsible for processing the data-signal that comes from signal processor, and send to servo-control system through the data command that calculates sweeping; Servo-control system is controlled the adjustment that rotating mechanism is finished the optical system angle according to the sweeping instruction, finishes the single pass process.
The invention also discloses a kind of optical communication method, comprising:
A, light source output light source signal;
B, spatial light modulator receive described light signal and it are modulated, and reflect after being loaded into feedback information on the described light signal;
C, receive the light signal reflect and it is carried out demodulation.
Compared with prior art, the present invention uses asymmetrical rear modulated structure, and light source and detector concentrate on the information acceptance division, and the information sending part only needs to have an information modulator spare, no longer needs to carry the devices such as light source.This makes the volume of information sending part and power do very littlely, uses battery just can drive mobility and good concealment.Needing in battlefield detection, information investigation and personnel's search and rescue etc. to be particularly suitable for the occasion of distributed sensor long-term work.And this system combines the advantage of microwave communication and optical fiber communication, both had large capacity, at a high speed, good confidentiality and safe and reliable advantage, do not need to lay again optical fiber, applying flexible.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, the accompanying drawing that the following describes only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1 shows that the principle schematic of optical communication system in the specific embodiment of the invention;
Figure 2 shows that the principle schematic of sweeping device in the specific embodiment of the invention;
Figure 3 shows that the application schematic diagram of optical communication system in the specific embodiment of the invention.
Embodiment
The embodiment of the invention discloses a kind of optical communication system, comprising:
The information acceptance division, it comprises light source and detector, described light source output light source signal;
The information sending part, it comprises a spatial light modulator, this spatial light modulator receives described light signal and it is modulated, and feedback information is loaded on the described light signal back reflection to described information acceptance division, described detector receives the light signal that reflects and it is carried out demodulation.
The embodiment of the invention also discloses a kind of optical communication method, comprising:
A, light source output light source signal;
B, spatial light modulator receive described light signal and it are modulated, and reflect after being loaded into feedback information on the described light signal;
C, receive the light signal reflect and it is carried out demodulation.
Above-mentioned technology combines the advantage of microwave communication and optical fiber communication, both had large capacity, at a high speed, good confidentiality and safe and reliable advantage, do not need to lay again optical fiber, applying flexible can be used as a kind of important supplement of radio communication and optical fiber communication.This communication system integrated level is high, and volume is little, and is low in energy consumption, is easy to carry, and mobility is good.Terminal can be composed of small-sized communication network, realizes immediately contact.Its system is simple, the good directionality that information transmits, and difficult quilt is intercepted and captured, and is safe.Use optical modulator to load device as information, transmit take light as carrier signal, the speed of communication and processing is very fast.Use asymmetrical rear modulation system, can realize the multiple spot distributed communication of low-power consumption, strengthen persistence and the disguise of system.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is described in detail, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work belongs to the scope of protection of the invention.
Figure 1 shows that the principle schematic of optical communication system in the specific embodiment of the invention.
Join shown in Figure 1ly, optical communication system comprises information acceptance division 10 and information sending part 20, and information acceptance division 10 comprises light source 11 and detector 12, and information sending part 20 comprises spatial light modulator 21.
1, modulating speed is fast, but concurrent working
Owing to adopted the Multiple Quantum Well spatial light modulator, so the response speed of this system is exceedingly fast.From the limit of physical device, the response time can be low to moderate picosecond magnitude.And, can use the modulator array of two dimension to carry out parallel transmission, greatly dilatation of system, transmission rate is very high.Extremely be adapted at using in the asymmetrical rear modulation free-space optical communication system, can guarantee in a flash signal to be delivered to receiving terminal fully what aim at.
2, power consumption is extremely low
The Multiple Quantum Well spatial light modulator is operated in the anti-partially state of pn knot, and operating current is very low, and whole system can be accomplished low in energy consumption to the 10mW magnitude, and this makes information transmitting terminal only use battery just can drive, and system can do very littlely, and the operating time is very long.This especially is fit to be applied in the Distributed probing field of information sensing and investigation.
3, can use phase-modulation
The Multiple Quantum Well spatial light modulator can also carry out phase-modulation except the amplitude modulation(PAM) of routine.The anti-interference of phase-modulation is stronger.
Using and automatically to point to tracer technique, is in order to realize the aligning between the receiving-transmitting sides, to set up communication link, make the light signal of receiving terminal shine transmitting terminal, and after information was sent out end and loads, light signal was reflected onto receiving terminal again.Information must be finished transmission after aiming at, receiving-transmitting sides needs to aim at all the time in this process.Automatically pointing to tracing system generally is made of sweeping device and feedback device.When the sweeping device is scanned up to ad-hoc location, in the time of can receiving the reflected signal by transmitting terminal, then alignment procedures is set up, and feedback device sends a signal, locking sweeping device, and trigger communication process one time.After communication was finished, reponse system was sent a signal again, and then the sweeping device starts again, and scanning is from the reflected signal of other transmitting terminals.
Figure 2 shows that the principle schematic of sweeping device in the specific embodiment of the invention.
Join shown in Figure 2, the sweeping device mainly by optical system, large visual field area array CCD, signal processor, data are processed and control software, servo-control system and rotating mechanism form.
Optical system is finished convergence, the processing to target beam, target imaging on the area array CCD of large visual field, thereby confirm the coordinate information of target.Signal processor is realized collection, quantification and the coding to the video information of CCD.Data are processed and control software is responsible for processing the data-signal that comes from signal processor, and send to servo-control system through the data command that calculates sweeping, servo-control system is controlled the adjustment that rotating mechanism is finished the optical system angle according to the sweeping instruction, finishes the single pass process.When the sweeping device is scanned up to ad-hoc location, in the time of can receiving the reflected signal by transmitting terminal, then alignment procedures is set up, and reponse system is sent a signal, and locking sweeping device communicates.
When optical communication system is carried out communication, light source by information acceptance division 10 sends light signal, information sending part 20 is modulated flashlight after receiving information acceptance division 10 light signals, is loaded into the feedback information of its record on the light signal and reflexes to information acceptance division 10.After the detector 12 of information acceptance division 10 detects the light signal that returns, information is carried out demodulation, obtain the information of self information sending part 20, realize the purpose of both sides' exchange message.
Above-mentioned optical communication system has obviously different from the structure of traditional symmetrical expression optical communication.In traditional optical communication, light source and the detector transmitting-receiving two-end that is placed in after by transmitting terminal information being modulated, elicites and demodulates signal by the receiving terminal detector.Compare traditional structure, the characteristics of this asymmetric rear modulation free-space optical communication system are: use asymmetrical rear modulated structure, light source and detector concentrate on information acceptance division 10, and information sending part 20 only needs to have an information modulator spare, no longer need to carry the devices such as light source.This makes the volume of information sender and power do very littlely, uses battery just can drive mobility and good concealment.Needing in battlefield detection, information investigation and personnel's search and rescue etc. to be particularly suitable for the occasion of distributed sensor long-term work.
Figure 3 shows that the application schematic diagram of optical communication system in the specific embodiment of the invention.
Join shown in Figure 3ly, this is a kind of point-to-point communication system of passive type, and as carrier wave, atmosphere is as transmission medium with the laser light wave, and aircraft and buoy do not need exchange and relay system just can realize point-to-point information communication.In this example, aircraft is as information receiving end, carry laser, detector and automatically point to follow-up mechanism, and buoy is information transmitting terminal, only carries modulator, can be only with battery-operated, and power consumption and disguise are all fine.During fly past, automatic tracking system carries out the high speed sweeping and determines target, is aiming at later in a flash of short durationly with each buoy, by the modulated device modulation of the light of laser emission and be reflected back aircraft, finishes the transmission of information.And then carry out the communication of next buoy.
In sum, the present invention uses asymmetrical rear modulated structure, and light source and detector concentrate on the information acceptance division, and the information sending part only needs to have an information modulator spare, no longer needs to carry the devices such as light source.This makes the volume of information sending part and power do very littlely, uses battery just can drive mobility and good concealment.Needing in battlefield detection, information investigation and personnel's search and rescue etc. to be particularly suitable for the occasion of distributed sensor long-term work.And this system combines the advantage of microwave communication and optical fiber communication, both had large capacity, at a high speed, good confidentiality and safe and reliable advantage, do not need to lay again optical fiber, applying flexible.
Need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or sequentially between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby not only comprise those key elements so that comprise process, method, article or the equipment of a series of key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.Do not having in the situation of more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The above only is the application's embodiment; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the application's protection range.
Claims (7)
1. an optical communication system is characterized in that, comprising:
The information acceptance division, it comprises light source and detector, described light source output light source signal;
The information sending part, it comprises a spatial light modulator, this spatial light modulator receives described light signal and it is modulated, and feedback information is loaded on the described light signal back reflection to described information acceptance division, described detector receives the light signal that reflects and it is carried out demodulation.
2. optical communication system according to claim 1 is characterized in that, described light source is semiconductor laser, and the operation wavelength of this semiconductor laser and described spatial light modulator is complementary.
3. optical communication system according to claim 1 is characterized in that, described spatial light modulator is reflective Multiple Quantum Well spatial light modulator.
4. optical communication system according to claim 1, it is characterized in that, described information acceptance division also comprises automatic sensing tracing system, to realize aiming between described information acceptance division and the information sending part, sets up the communication link between described information acceptance division and the information sending part.
5. optical communication system according to claim 4, it is characterized in that, described automatic sensing tracing system comprises sweeping device and feedback device, this feedback device between described information acceptance division and information sending part, communicate by letter beginning and finish in respectively described sweeping device is locked and starts.
6. optical communication system according to claim 5, it is characterized in that, described sweeping device comprises that optical system, area array CCD, signal processor, data are processed and control software, servo-control system and rotating mechanism, described optical system is finished convergence, the processing to target beam, target imaging on area array CCD, thereby confirm the coordinate information of target; Signal processor is realized collection, quantification and the coding to the video information of CCD; Data are processed and control software is responsible for processing the data-signal that comes from signal processor, and send to servo-control system through the data command that calculates sweeping; Servo-control system is controlled the adjustment that rotating mechanism is finished the optical system angle according to the sweeping instruction, finishes the single pass process.
7. an optical communication method is characterized in that, comprising:
A, light source output light source signal;
B, spatial light modulator receive described light signal and it are modulated, and reflect after being loaded into feedback information on the described light signal;
C, receive the light signal reflect and it is carried out demodulation.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457659A (en) * | 2013-08-22 | 2013-12-18 | 华中科技大学 | Space division multiplex system and method suitable for free space optical communication |
| CN103607541A (en) * | 2013-12-02 | 2014-02-26 | 吴东辉 | Method and system for obtaining information by way of camera shooting, camera shooting device and information modulation device |
| CN103973367A (en) * | 2014-05-09 | 2014-08-06 | 杭州电子科技大学 | Full duplex modulation reflex reflection wireless optical communication system and communication method thereof |
| CN104539372A (en) * | 2015-01-09 | 2015-04-22 | 西安应用光学研究所 | Long-distance laser atmosphere communication receiving device with fast alignment function and communication method |
| CN105518539A (en) * | 2013-09-04 | 2016-04-20 | 依视路国际集团（光学总公司） | Methods and systems for augmented reality |
| CN105579917A (en) * | 2013-09-04 | 2016-05-11 | 依视路国际集团（光学总公司） | Methods and systems for augmented reality |
| CN109039456A (en) * | 2018-08-08 | 2018-12-18 | 西安电子科技大学 | Underwater intelligent radio optical communication system |
| CN110266381A (en) * | 2013-12-02 | 2019-09-20 | 吴东辉 | A kind of method and system and device of space optical communication |
| WO2023040571A1 (en) * | 2021-09-17 | 2023-03-23 | 高勘(广州)技术有限公司 | Communication method between base station and terminal, communication system and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1190509A (en) * | 1995-05-12 | 1998-08-12 | 地球许可公司 | High capacity communications satellite |
| JP2000132793A (en) * | 1998-10-27 | 2000-05-12 | Matsushita Electric Ind Co Ltd | Vics light beacon and its communicating operation confirming method |
| US20060179456A1 (en) * | 2004-09-07 | 2006-08-10 | National Institute Of Information And Communications Technology | Satellite information autonomous distribution satellite, satellite information collecting system, and satellite terrestrial test system |
| WO2008097774A1 (en) * | 2007-02-02 | 2008-08-14 | Sunlight Photonics Inc. | Retro-directive target for free-space optical communication and method of producing the same |
| US20090034985A1 (en) * | 2007-07-30 | 2009-02-05 | Fattal David A | Optical interconnect |
-
2012
- 2012-08-23 CN CN201210301099XA patent/CN102857299A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1190509A (en) * | 1995-05-12 | 1998-08-12 | 地球许可公司 | High capacity communications satellite |
| JP2000132793A (en) * | 1998-10-27 | 2000-05-12 | Matsushita Electric Ind Co Ltd | Vics light beacon and its communicating operation confirming method |
| US20060179456A1 (en) * | 2004-09-07 | 2006-08-10 | National Institute Of Information And Communications Technology | Satellite information autonomous distribution satellite, satellite information collecting system, and satellite terrestrial test system |
| WO2008097774A1 (en) * | 2007-02-02 | 2008-08-14 | Sunlight Photonics Inc. | Retro-directive target for free-space optical communication and method of producing the same |
| US20090034985A1 (en) * | 2007-07-30 | 2009-02-05 | Fattal David A | Optical interconnect |
Non-Patent Citations (1)
| Title |
|---|
| 吴琼: "《自由空间激光通信APT系统精跟踪控制技术研究》", 《中国优秀硕士学位论文全文数据库》, no. 200902, 15 February 2009 (2009-02-15) * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457659A (en) * | 2013-08-22 | 2013-12-18 | 华中科技大学 | Space division multiplex system and method suitable for free space optical communication |
| CN105518539A (en) * | 2013-09-04 | 2016-04-20 | 依视路国际集团（光学总公司） | Methods and systems for augmented reality |
| CN105579917A (en) * | 2013-09-04 | 2016-05-11 | 依视路国际集团（光学总公司） | Methods and systems for augmented reality |
| CN105579917B (en) * | 2013-09-04 | 2020-12-01 | 依视路国际公司 | Method and system for augmented reality |
| CN103607541A (en) * | 2013-12-02 | 2014-02-26 | 吴东辉 | Method and system for obtaining information by way of camera shooting, camera shooting device and information modulation device |
| CN110266381A (en) * | 2013-12-02 | 2019-09-20 | 吴东辉 | A kind of method and system and device of space optical communication |
| CN103973367A (en) * | 2014-05-09 | 2014-08-06 | 杭州电子科技大学 | Full duplex modulation reflex reflection wireless optical communication system and communication method thereof |
| CN103973367B (en) * | 2014-05-09 | 2016-04-06 | 杭州电子科技大学 | Full duplex modulation retro-reflection radio optical communication system and communication means thereof |
| CN104539372A (en) * | 2015-01-09 | 2015-04-22 | 西安应用光学研究所 | Long-distance laser atmosphere communication receiving device with fast alignment function and communication method |
| CN104539372B (en) * | 2015-01-09 | 2017-02-22 | 西安应用光学研究所 | Long-distance laser atmosphere communication receiving device with fast alignment function and communication method |
| CN109039456A (en) * | 2018-08-08 | 2018-12-18 | 西安电子科技大学 | Underwater intelligent radio optical communication system |
| WO2023040571A1 (en) * | 2021-09-17 | 2023-03-23 | 高勘(广州)技术有限公司 | Communication method between base station and terminal, communication system and storage medium |
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Application publication date: 20130102 |