CN101266321A - Wireless light communication receiver aerial - Google Patents
Wireless light communication receiver aerial Download PDFInfo
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- CN101266321A CN101266321A CNA2008100363813A CN200810036381A CN101266321A CN 101266321 A CN101266321 A CN 101266321A CN A2008100363813 A CNA2008100363813 A CN A2008100363813A CN 200810036381 A CN200810036381 A CN 200810036381A CN 101266321 A CN101266321 A CN 101266321A
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- optical fiber
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Abstract
The invention relates to a wireless optical communication receiving antenna. The wireless optical communication receiving antenna comprises a focusing lens and a optical fiber wherein the optical fiber is connected with the cone tip of a light cone and the focusing lens is mounted before the large-end face of the light cone and the large-end face of the light cone is in the focus of the focusing lens, therefore the beam incoming into the large-end face of the light cone focuses in the light cone. The invention can extend the acquisition range, conquer the beam deviation, augment the vibration resistance and stability, increase the transmission speed and antijamming capability. The structure of the invention is simple and easy to produce in low cost and suitable for continuous high speed information transmission at real time in wireless optical communication at the stationary state or straight-line motion state.
Description
Technical field
The present invention relates to a kind of wireless light communication receiver aerial, can significantly improve the receptivity of wireless light communication under static or the rectilinear motion state, the high speed data transfer when can be used for the static or rectilinear motion state of wireless light communication.
Background technology
Wireless light communication (Wireless Optical Communication is called for short WOC) is called free space optical communication again, is to utilize the carrier of laser as information, directly carries out a kind of communication mode of information transmission in atmosphere.Characteristics such as it has not only that message capacity is big, speed is high, good confidentiality, dirigibility are strong, and avoided expensive optical fibre installation and maintenance work, cost is low, construction is simple, can carry out the full duplex transmission of information such as data, voice, multi-media image.
Different with traditional Fibre Optical Communication Technology, WOC transmits and receives with the optical lens control bundle, thereby information is sent to the other end from an end.Each WOC system forms by light transmitting terminal and optical receiving end, can give optical receiving end along straight-line transmitting in atmosphere with the light beam of the various wavelength of the information of carrying, and carries out the high-speed transfer of information, and possesses the full-duplex communication ability.
Although WOC has numerous advantages, also exist the some shortcomings part:
(1) high precision, beam alignment accurately.Because the signal beams diameter of WOC has a certain size, for the normal transmission that guarantees to communicate by letter, the light transmitting terminal is aimed at optical receiving end.But after aiming at, because the effect of external force factors such as wind-force, in fact WOC equipment and firm banking thereof exist moving and waving to a certain degree, and this just needs optical receiving end to regulate automatically, aims at all the time to guarantee the sending and receiving two ends.
(2) atmospheric channel is to the influence of beam Propagation.Various weather all can bring influence to communication like rain, snow, mist, haze, atmospheric turbulence, and particularly atmospheric turbulence makes the travel path of laser in atmosphere be distorted and deflection, cause the skew of optical receiving end light beam picture point, influence communication quality.
(3) in some occasion, move on rectilinear orbit as radio optical communication system, the out-of-flatness of track causes the deflection of light beam to cause the skew of light beam picture point, and is very big to the optical communication performance impact.
Fig. 2 shows the vibration that caused under the above-mentioned various situation influence to light beam.
When the deviation angle of incident beam (21) was α, the focus deviation s of the focused beam (23) behind the process convergent lens (22) was
s＝αf
Wherein f is the focal length of convergent lens (22).
If the diameter of focus place optical detection device is d, the pass of itself and focus deviation s is so
d≥2s
Have only focus deviation to be controlled in this scope, could guarantee the unimpeded of communication.In practical communication, vibration is often more violent than what imagine, causes focus deviation to deflect away from the diameter of conventional optical detection device.
At present, optical detection device commonly used mainly contains PIN photoelectric tube, photoelectric cell etc., but highly sensitive electric class photo-detector costs an arm and a leg, and receiving area is little, can not satisfy the needs of data high-speed transmission; The ordinary optic fibre diameter is little, can not solve the problem of focal shift.Therefore need a kind of method more reliably to improve reception, data transmission is finished smoothly.
Summary of the invention
The object of the present invention is to provide and a kind ofly can improve light-receiving ability and wireless light communication receiver aerial reliable and stable, that can be at radio optical communication system carry out high speed data transfer under the static or rectilinear motion state.
For achieving the above object, the present invention adopts following technical proposals:
A kind of wireless light communication receiver aerial, comprise a condenser lens and an optical fiber, it is characterized in that described optical fiber is connected with the awl tip of a light cone, described condenser lens is placed in the place ahead of the large end face of described light cone, and the large end face that makes light cone is positioned within the focal length of condenser lens, makes the light beam that incides the light cone large end face in the light cone internal focus.
Light cone is the solid-cone body of being made by quartz material, and its outer wall plates one deck high reflectivity film.The major function of solid light-cone is to collect luminous energy as much as possible, overcomes the picture point skew that vibration causes; The major function of internal focus is to reduce the order of reflection of light beam in solid light-cone, reduces optical power loss.
Optical fiber can be common list/multimode optical fiber, also can be the multimode optical fiber of major diameter large-numerical aperture.One end of optical fiber is connected with the awl of solid light-cone is most advanced and sophisticated by fiber active linker, and the awl tip diameter of solid light-cone is not more than fibre diameter; The other end presets the fiber active linker of FC/PC or various models such as SC/PC or ST/PC, so that be connected with follow-up optical signal processing device.Optical fiber increases data transmission capacity in order to improve message transmission rate, improves signal to noise ratio (S/N ratio).
The present invention has following conspicuous outstanding substantive distinguishing features and remarkable advantage compared with prior art:
1, adopts solid light-cone to carry out the internal focus of light beam, can enlarge range of receiving, collect luminous energy as much as possible, overcome the picture point skew that vibration causes; 2, adopt convergent lens, solid light-cone, optical fiber to form a kind of simple receiving trap, strengthened the freedom from vibration and the stability of system; 3, adopt optical fiber as optical detection device, improved the transfer rate of data, and anti-electromagnetic interference (EMI), can realize the high-speed radio optical communication of data transmission; 4, optical fiber one end is connected with the awl of solid light-cone is most advanced and sophisticated, and the other end presets the fiber active linker of FC/PC or various models such as SC/PC or ST/PC, can be connected with follow-up optical signal processing device, has increased the extensibility of system.Therefore, the present invention is simple in structure, vibration and interference resistance is strong, highly sensitive, easy to manufacture, cost is low, need not complicated mechanical devices, is applicable under static or the rectilinear motion state real time high-speed information transmission continuous in the wireless light communication.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the beam deviation synoptic diagram.
Embodiment
A preferred embodiment of the present invention accompanying drawings is as follows:
Referring to Fig. 1, this wireless light communication receiver aerial includes condenser lens (11), solid light-cone (12), optical fiber (13).According to the diameter of condenser lens (11), length and the large end face diameter that focal length is determined solid light-cone (12), the awl tip diameter of solid light-cone (12) and optical fiber (13) diameter are complementary, to reduce junction loss; Optical fiber (13) one ends are connected by fiber active linker (15) with the awl of solid light-cone (12) is most advanced and sophisticated, and the other end presets the fiber active linker (16) of FC/PC model, can be connected with follow-up optical signal processing device; The diameter of optical fiber (13) and numerical aperture are by the awl tip diameter of solid light-cone (12) and the length decision of whole solid light-cone (12).The material of solid light-cone (12) adopts quartz material, and the outside plates high reflectivity film (14), and the outside adds protective sleeve, prevents the external force damage.
After condenser lens (11), solid light-cone (12) and optical fiber (13) combination, with carrying out the machinery combination after the monochromatic visible standard sources calibration, three's optical axis overlaps, and the large end face of solid light-cone (12) is positioned within convergent lens (11) focal length; Regulate the distance between condenser lens (11) and solid light-cone (12) large end face, make incident beam (17) pass through focused beam (18) behind the condenser lens (11) in solid light-cone (12) internal focus, optical fiber (13) output power maximum.
Claims (5)
1. wireless light communication receiver aerial, comprise a condenser lens (11) and an optical fiber (13), it is characterized in that described optical fiber (13) is connected with the awl tip of a light cone (12), described condenser lens (11) is placed in the place ahead of the large end face of described light cone (12), and the large end face that makes light cone (12) is positioned within the focal length of condenser lens (11), makes the light beam that incides light cone (12) large end face in light cone (12) internal focus.
2. wireless light communication receiver aerial according to claim 1 is characterized in that described light cone (12) is the solid-cone body of being made by quartz material, and its conical outer wall plates a floor height reflective film (14).
3. wireless light communication receiver aerial according to claim 1 and 2 is characterized in that the diameter at the awl tip of described light cone (12) is not more than the diameter of described optical fiber (13), realizes interconnecting by a fiber active linker (15).
4. wireless light communication receiver aerial according to claim 1 is characterized in that described optical fiber (13) is common list/multimode optical fiber, or the multimode optical fiber of major diameter large-numerical aperture.
5. wireless light communication receiver aerial according to claim 1, a fiber active linker (16) is preset in the outer end that it is characterized in that described optical fiber (13), and this fiber active linker (16) is that FC/PC or SC/PC or ST/PC are with regard to fine flexible jumper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100363813A CN101266321A (en) | 2008-04-21 | 2008-04-21 | Wireless light communication receiver aerial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100363813A CN101266321A (en) | 2008-04-21 | 2008-04-21 | Wireless light communication receiver aerial |
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| CN101266321A true CN101266321A (en) | 2008-09-17 |
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| CNA2008100363813A Pending CN101266321A (en) | 2008-04-21 | 2008-04-21 | Wireless light communication receiver aerial |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458362B (en) * | 2009-01-04 | 2010-06-09 | 上海大学 | Light beam diverging angle adjustable wireless light communication transmitting antenna |
| CN102681109A (en) * | 2012-05-09 | 2012-09-19 | 天津大学 | Large-caliber light beam coupler |
| CN105068183A (en) * | 2015-04-24 | 2015-11-18 | 燕山大学 | Special type light cone with surface being coated with nano-film |
| CN106291922A (en) * | 2016-10-24 | 2017-01-04 | 广东技术师范学院 | Holographic mirror image transmission system |
| CN106911385A (en) * | 2017-02-28 | 2017-06-30 | 华南师范大学 | A kind of optical antenna and LED visible light communication system |
| CN107450133A (en) * | 2017-09-15 | 2017-12-08 | 北京科技大学 | Full light wide-angle light cone receiver and full light wide-angle receive conduction device |
| CN107533195A (en) * | 2015-04-16 | 2018-01-02 | Asml控股股份有限公司 | Method and apparatus for optical fiber connection |
| CN109459824A (en) * | 2018-11-12 | 2019-03-12 | 长春理工大学 | It can be improved the two-stage space optical coupling device of single mode optical fiber space optical coupling efficiency |
| FR3094500A1 (en) * | 2019-03-29 | 2020-10-02 | Oledcomm | Communication system comprising a fiber optic assembly, a modulated light signal receiver and a telescope |
-
2008
- 2008-04-21 CN CNA2008100363813A patent/CN101266321A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458362B (en) * | 2009-01-04 | 2010-06-09 | 上海大学 | Light beam diverging angle adjustable wireless light communication transmitting antenna |
| CN102681109A (en) * | 2012-05-09 | 2012-09-19 | 天津大学 | Large-caliber light beam coupler |
| US10288810B2 (en) | 2015-04-16 | 2019-05-14 | Asml Holding N.V. | Method and apparatus for optical fiber connection |
| CN107533195B (en) * | 2015-04-16 | 2021-01-15 | Asml控股股份有限公司 | Method and apparatus for optical fiber connection |
| CN107533195A (en) * | 2015-04-16 | 2018-01-02 | Asml控股股份有限公司 | Method and apparatus for optical fiber connection |
| CN105068183A (en) * | 2015-04-24 | 2015-11-18 | 燕山大学 | Special type light cone with surface being coated with nano-film |
| CN105068183B (en) * | 2015-04-24 | 2017-12-29 | 燕山大学 | A kind of extraordinary light cone of coating surface nano thin-film |
| CN106291922A (en) * | 2016-10-24 | 2017-01-04 | 广东技术师范学院 | Holographic mirror image transmission system |
| CN106911385A (en) * | 2017-02-28 | 2017-06-30 | 华南师范大学 | A kind of optical antenna and LED visible light communication system |
| CN106911385B (en) * | 2017-02-28 | 2019-06-21 | 华南师范大学 | A kind of optical antenna and LED visible light communication system |
| CN107450133B (en) * | 2017-09-15 | 2019-03-01 | 北京科技大学 | Full light wide-angle light cone receiver and full light wide-angle receive conduction device |
| CN107450133A (en) * | 2017-09-15 | 2017-12-08 | 北京科技大学 | Full light wide-angle light cone receiver and full light wide-angle receive conduction device |
| CN109459824A (en) * | 2018-11-12 | 2019-03-12 | 长春理工大学 | It can be improved the two-stage space optical coupling device of single mode optical fiber space optical coupling efficiency |
| CN109459824B (en) * | 2018-11-12 | 2020-11-10 | 长春理工大学 | Two-stage space optical coupling device capable of improving single-mode optical fiber space optical coupling efficiency |
| FR3094500A1 (en) * | 2019-03-29 | 2020-10-02 | Oledcomm | Communication system comprising a fiber optic assembly, a modulated light signal receiver and a telescope |
| WO2020200930A1 (en) * | 2019-03-29 | 2020-10-08 | Oledcomm | Communication system comprising a fibre optic assembly, a modulated light signal receiver and a telescope |
| US11789191B2 (en) | 2019-03-29 | 2023-10-17 | Oledcomm | Communication system comprising an optical fiber assembly, a modulated light signal receiver and a telescope |
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Open date: 20080917 |