CN2413441Y - Radio laser communication terminal equipment - Google Patents
Radio laser communication terminal equipment Download PDFInfo
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- CN2413441Y CN2413441Y CN00217069U CN00217069U CN2413441Y CN 2413441 Y CN2413441 Y CN 2413441Y CN 00217069 U CN00217069 U CN 00217069U CN 00217069 U CN00217069 U CN 00217069U CN 2413441 Y CN2413441 Y CN 2413441Y
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Abstract
The utility model relates to a radio laser communication terminal machine composed of a pair of laser terminal machines with totally identical performances and structures. Each laser terminal machine comprises a casing arranged on a mechanical adjustment frame, and the interior of the casing is provided with a laser emitting secondary machine and a laser receiving secondary machine. The interior of the laser emitting secondary machine is simultaneously provided with a receiving module of the emitting terminal machine and a code converter of the emitting terminal machine which are respectively connected with a fiber adaptor of the emitting terminal machine and a coaxial fitting of the emitting terminal machine on the casing. The interior of the laser receiving secondary machine is provided with a path that a fiber adaptor of the receiving terminal machine is connected with an optical fiber communication line, and another path that a code converter of the receiving terminal machine is connected with the electrical transmission line through a coaxial fitting of the receiving terminal machine. The utility model has the function of duplex utilization of optical signals and electrical signals.
Description
The utility model belongs to the communications field, is a kind of wireless laser communication terminal machine in the free space transmission.Main application fields comprises: the interconnection between the mobile communication base station, user's access, local area network (LAN), Yin Te (Intranet) in-house network, the access of Yin Te (Internet) net, reserve link, deployment fast, interim dilatation, calamity emergency.In inconvenience and the occasion etc. that can not lay optical cable part, inconvenience and can not set up microwave antenna, become better selection.Compare with microwave communication, it need not the frequency occupancy permit.
Formerly in the technology, utilize electromagnetic wave to be of long duration as the radio communication of signal vehicle, its intermediate waves, microwave, millimeter wave radio communication still are extensive use of so far.But it exists confidentiality bad, and message capacity is low, and the wave band resource is restricted etc. not enough.Optical fiber communication as carrier, realizes communication process with optical fiber as transmission medium with light.Because the band resource of light is very abundant, so message capacity is huge, becomes the backbone of modern communications.But Networks of Fiber Communications, the construction that comprises the communications infrastructures such as optical transceiver, optical cable are advance plannings, fixing.The region that optical cable does not have arrival or optical cable inconvenience to arrive can appear like this.This provides the space of a development just for laser wireless communication.Laser wireless communication is the communication technology of transmitting at free space as carrier with laser, compares with optical fiber communication to have flexibility.Just begin the research of laser atmospheric communication as far back as the seventies people, but because the success of optical fiber communication is not subjected to abundant attention.Owing to the demand of mobile communication and the bandwidth constraints of microwave communication, space optical communication obtains very big progress in recent years.Lucent adopts the semiconductor laser of 1.55 mu m wavebands to add fiber amplifier (EDFA) as transmitting illuminant, and adopts WDM structure, realizes the space optical communication of the capacity of 10Gbit/s.Countries such as Japan, Europe have also reported several laser space communication devices.
University of Science and Technology of China Electronics adopts carbon dioxide laser (10.6 mum wavelengths, intracavity), realizes the atmospheric communication (technological achievement numbering 88210414) of duplexing four-wire system No. three phones of fixed point.China's Zhongshan University's laser and spectroscopy research institute adopt the amplitude modulation laser standard work of audio frequency or digital signal to realize atmospheric communication transmission (technological achievement numbering 89209283).Defectives such as they all exist message capacity very low, on the structure of communication system, do not have to consider to comprise with other communications facilitys the interface of optical fiber communication, microwave communication, and practical value is little.
The utility model is in order to overcome the deficiency that exists in the above-mentioned technology formerly, a kind of function of sending out the receipts light signal and the signal of telecommunication that has with facility is provided, have the duplex communication function, and have can moving and portable wireless laser communication terminal machine of practicability function that big capacity, direct same optical fiber communication, microwave communication network be incorporated into the power networks.It adapts to energy maneuverability ground the application of various occasions.
Wireless laser communication terminal machine of the present utility model as shown in Figure 1.Constitute by a pair of performance (comprising machinery, optics and electricity) and the identical in structure mat woven of fine bamboo strips one optical transceiver 1 and second optical transceiver 2 when communicating.The structure of each frame optical transceiver 1,2 as shown in Figure 2.Comprise the casing 3 that places on the mechanical adjustment frame 7, be built-in with light emission handset 4, light-receiving handset 5 and gunsight 6 at casing 3.
The structure of light-receiving handset 5 mainly comprises light receiver aerial 17 as shown in Figure 3; The optical signals receiving end machine optical fiber receive module of collecting through light receiver aerial 17 18 converts the signal of telecommunication to, and input receiving end machine signal processing module 19 transfers to receiving end mechanism formula selector switch 20.Be divided into two-way then, the one tunnel connects receiving end machine laser driver 21, and to receiving end machine laser assembly 22, receiving end machine laser assembly 22 produces the laser beam of modulation, connects optical fiber telecommunications line through placing the receiving end machine fiber adapter 25 on the casing 3.Receiving end machine code pattern converter 23 is inserted on another road, is connected on the electrical transmission circuit through placing the receiving end machine coaxial fitting 24 on the casing 3.
The course of work of said structure is: when machine fiber adapter 8 inputs of making a start in via first optical transceiver 1 of the light signal of optical fiber communication, machine optical fiber receive module 9 is transformed into the signal of telecommunication by making a start; Deliver to the machine signal processing module 13 of making a start by the machine-processed formula selector switch 12 of making a start, carry out shaping and amplify processing such as Clock Extraction; The treated signal input machine laser driver 14 of making a start, excitation is made a start, and machine laser assembly 15 produces and the high power modulated beam of light of the same speed of optical fiber input optical signal, mails to the area of space of light receiver aerial 17 in the second good optical transceiver 2 of prior aiming by light transmitting antenna 16 orientations.The light of the carrying information that light receiver aerial 17 collection the other side light transmitting antennas 16 are sent is coupled on the sensitive surface of receiving end machine optical fiber receive module 18, and light signal is converted to the signal of telecommunication; Carry out processing such as shaping amplification and clock recovery through receiving end machine signal processing module 19, by receiving end mechanism formula diverter switch 20, feed-in receiving end machine laser driver 21 drives receiving end machine laser assembly 22, again through receiving end machine fiber adapter 25, same light signal is sent into optical fiber, send to descending fibre circuit.
If what transmitted is the signal of telecommunication of the HDB3 coding of electric terminal circuit, the signal of telecommunication is through machine coaxial fitting 10 inputs of making a start; By the machine code pattern converter 11 of making a start, deliver to the machine signal processing module 13 of making a start by the machine-processed formula diverter switch 12 of making a start after the conversion and handle; Finish the space laser transmission with above-mentioned same process then, and be reduced to the signal of telecommunication output of HDB3 sign indicating number through 23 demodulation of receiving end machine code pattern converter.
Send from second optical transceiver 2 equally, first optical transceiver 1 finishes receiving the space transmission course of above-mentioned information.Realized duplex (two-way) communication function of this terminal like this, realization and Networks of Fiber Communications, microwave communication network etc. directly is incorporated into the power networks and inserts operation.
Gunsight 6 recited above is optical telescope or laser alignment member.It cooperates adjustment rack 7 to adjust to realize the aiming in advance before carrying out space communication of two first optical transceivers 1 and second optical transceiver 2.
Above described adjustment rack 7 be to cooperate five dimensions of gunsight 6 to adjust frames; Or be suitable for remote occasion automatic track aiming frame.
The receiving end machine recited above and the machine laser assembly the 15, the 22nd of making a start, 800nm wave band high power semiconductor lasers assembly, or 1550nm wave band semiconductor laser adds master that erbium-doped fiber amplifier (EDFA) the forms power amplifier components that shakes, or employing multi-wavelength semiconductor laser assembly and wavelength division multiplexer, realize wavelength division multiplexing, to increase message capacity.
Receiving end machine recited above and make a start machine optical fiber receive module 18 and 9, it is the semiconductor photo detector assembly, according to emission band is silicon (Si) optical diode and field-effect transistor (FET) assembly of 800nm wave band, or silicon avalanche photodiode (APD), or the indium gallium arsenic detector (InGaAs) of 1550nm wave band and field-effect transistor (FET) assembly.When receiving end machine or the machine laser assembly 15 or 22 of making a start adopt WDM structures, also to comprise Wave decomposing multiplexer.
Above described smooth transmitting antenna 16, light receiver aerial 17, be the transmitting-receiving split type heavy caliber short focus lens structure, as shown in Figure 4.Or contain the transmitting-receiving integrated structure of polarization beam splitter 27.It is adopt that polarization beam splitter 27 sends out and receive close ripple and partial wave, shown in Fig. 5-1.Or contain the transmitting-receiving integrated structure of optical fiber circulator 28, shown in Fig. 5-2.It is to close ripple and partial wave with what optical fiber circulator 28 was realized sending laser beams and received light wave.
The signal processing module 13 of above-mentioned make a start machine and receiving end machine, the 19th, constitute by circuit main board, circuit main board mainly comprises automatic gain control element, shaping amplifier element, Clock Extraction and resetter, error code alarm element, OOF alarm element and remote alarm element.
Advantage of the present utility model mainly contains:
(1) because of in the said structure, contain in the light of the present utility model emission handset 4 make a start machine optical fiber receive module 9 by optical fiber with place the machine of the making a start fiber adapter 8 on the casing 3 to link, the machine code pattern converter 11 of making a start simultaneously joins by the machine of the making a start coaxial fitting 10 on high frequency cable and the casing 3.Containing one the tunnel in light-receiving handset 5 is that the receiving end machine fiber adapter 25 of modulating lasering beam on casing 3 that receiving end machine laser assembly 22 produces linked on the optical fiber telecommunications line; Another road is that receiving end machine code pattern converter 23 has receiving end machine coaxial fitting 24 to be connected in the electrical transmission circuit on casing 3.So the utility model both can be sent out the receipts light signal, can send out the receipts signal of telecommunication again, have duplex capability.
(2) identical because of the performance and the structure of first optical transceiver 1 and second optical transceiver 2.Every optical transceiver can be finished the work of sending out or receiving.So the utility model has been realized the duplex communication function, realize and Networks of Fiber Communications that microwave communication network etc. directly is incorporated into the power networks and inserts operation.
(3) make a start in the utility model machine and receiving end machine laser assembly 15 and 22, it is the semiconductor high power laser, or the semiconductor laser master that adds fiber amplifier (EDFA) power amplifier (MOPA) assembly that shakes, light source as the emission terminal, can adopt direct current-modulation mode, have simple efficient, modulation rate is high, volume weight is little, the advantage that atmospheric loss is less.
(4) contain in the utility model and send out and receive standard selector switch 12 and 20, and light signal, signal of telecommunication input output interface interface can same optical fiber communication, system compatibles such as microwave communication, and the scope of application is wider.
(5) contain the machine signal processing module 13 of making a start in the utility model, meet the practical requirement of communication terminal equipment with the circuit main board of receiving end machine signal processing module 19, comprise multiplexed, the transmitting-receiving No Light Alarm, the OOF alarm, the error code alarm is to logical fault alarm, functions such as official telephone have very strong practicality.
(6) the utility model sending and receiving optical antenna 17,16 has split type and structure integral type, and which kind of structure all makes overall structure lightly compact, and the volume of optical transceiver is greatly reduced, and is in light weight, is easy to carry.
Description of drawings:
Fig. 1 is the total arrangement structural representation of the utility model wireless laser communication terminal machine communication.
Fig. 2 is the structural representation of the utility model wireless laser communication terminal machine.
Fig. 3 is the concrete structure schematic diagram of the utility model wireless laser communication terminal machine light emission handset 4 and light-receiving handset 5.
Fig. 4 is light transmitting antenna 16 and a light receiver aerial 17 in the utility model wireless laser communication terminal machine, is the split type structural representation of transmitting-receiving.
Fig. 5 is light transmitting antenna 16 and a light receiver aerial 17 in the utility model wireless laser communication terminal machine, is transmitting-receiving integrated structural representation.Fig. 5-the 1st wherein contains the transmitting-receiving integrated structural representation of polarization beam splitter 27.Fig. 5-the 2nd contains the transmitting-receiving integrated structural representation of fiber optical circulator 28.
Embodiment:
According to the integral layout of Fig. 1 and Fig. 2, concrete structure shown in Figure 3, the structure that light transmitting antenna 16 and light receiver aerial 17 adopt Fig. 4 to receive and dispatch the short focal length of split type heavy caliber, make a start machine and receiving end machine laser assembly 15 and 22 are single wavelength gallium aluminium arsenic (AlGaAs/GaAs) high power laser diode of 800nm; Make a start machine and receiving end machine receiver assembly 9 and 18 is silicon photo diode and field-effect transistor composition (PIN-FET); Input signal is the HDB3 sign indicating number.Realized the laser communication of duplex simultaneous two-way propagation in atmosphere.Operating distance is 2 kilometers, and signal of communication speed is respectively 2Mb/s, 8Mb/s, 34Mb/s and 155Mb/s.G.821 standard according to International Telecommunication Association (ITU) regulation tests test, and the error rate is lower than 10
-9, effectively the percentage of up duration is greater than 99%.
Claims (5)
1. wireless laser communication terminal machine,
＜1〉by a pair of performance and identical in structure first optical transceiver (1) and second optical transceiver (2) formation;
＜2〉each frame optical transceiver (1,2) comprises the casing (3) that places on the mechanical adjustment frame (7), is built-in with light emission handset (4), light-receiving handset (5) and gunsight (6) at casing (3);
The concrete structure that it is characterized in that light emission handset (4) and light-receiving handset (5) is:
＜3〉light emission handset (4) mainly comprises: make a start on the casing (3) the machine coaxial fitting (10) and the machine fiber adapter (8) of making a start, the machine fiber adapter (8) of making a start links with placing the machine of the making a start optical fiber receive module (9) in the casing (3) by optical fiber, the machine coaxial fitting (10) of making a start is joined by the high frequency cable and the machine code pattern converter (11) of making a start, the make a start output sending and receiving terminal standard selector switch (12) of the machine optical fiber receive module (9) and the machine code pattern converter (11) of making a start, spontaneous terminal standard selector switch (12) connects the machine signal processing module (13) of making a start successively, make a start machine laser driver (14) to the machine laser assembly (15) of making a start, and the machine laser assembly (15) of making a start produces the laser beam of modulation through the directed heavenwards emission of light transmitting antenna (16);
＜4〉light-receiving handset (5) mainly comprises: light receiver aerial (17), the optical signals receiving end machine optical fiber receive module of collecting through light receiver aerial (17) (18) converts signal of telecommunication input receiving end machine signal processing module (19) to, transfer to receiving end mechanism formula selector switch (20), be divided into two-way then, one the tunnel connects receiving end machine laser driver (21) to receiving end machine laser assembly (22), and the modulating lasering beam that is produced by receiving end machine laser assembly (22) is connected to optical fiber telecommunications line through placing the receiving end machine fiber adapter (25) on the casing (3); Receiving end machine code pattern converter (23) is inserted on another road, is connected on the electrical transmission circuit through placing the receiving end machine coaxial fitting (24) on the casing (3).
2. wireless laser communication terminal machine according to claim 1, it is characterized in that said machine laser assembly (15) and the receiving end machine laser assembly (22) of making a start is 800nm wave band high power semiconductor lasers assembly, or 1550nm wave band semiconductor laser adds master that erbium-doped fiber amplifier the forms power amplifier components that shakes, or adopts multi-wavelength semiconductor laser assembly and wavelength division multiplexer.
3. wireless laser communication terminal machine according to claim 1, it is characterized in that said machine optical fiber receive module (9) and the receiving end machine optical fiber receive module (18) of making a start is the silicon photo diode and the field effect transistor element of 800nm wave band, or silicon avalanche photodiode, or the indium gallium arsenic detector and the field effect transistor element of 1550nm wave band, perhaps also comprise Wave decomposing multiplexer.
4. wireless laser communication terminal machine according to claim 1, it is characterized in that said smooth transmitting antenna (16) and light receiver aerial (17) are the split type heavy caliber short focus lens structures of transmitting-receiving, or contain the transmitting-receiving integrated structure of polarization beam splitter (27), or contain the transmitting-receiving integrated structure of optical fiber circulator (28).
5. wireless laser communication terminal machine according to claim 1, it is characterized in that said machine signal processing module (13) and the receiving end machine signal processing module (19) of making a start is to be made of circuit main board, circuit main board comprises automatic gain control element, shaping amplifier element, Clock Extraction and resetter, OOF alarm element and remote alarm element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00217069U CN2413441Y (en) | 2000-03-30 | 2000-03-30 | Radio laser communication terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00217069U CN2413441Y (en) | 2000-03-30 | 2000-03-30 | Radio laser communication terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2413441Y true CN2413441Y (en) | 2001-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00217069U Expired - Fee Related CN2413441Y (en) | 2000-03-30 | 2000-03-30 | Radio laser communication terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2413441Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7580638B2 (en) | 2002-10-08 | 2009-08-25 | Finisar Corporation | Optical transceiver module with multipurpose internal serial bus |
| CN1866796B (en) * | 2006-05-31 | 2012-10-17 | 暨南大学 | SDMA visible light wireless access system |
| CN106385284A (en) * | 2016-09-09 | 2017-02-08 | 航天恒星科技有限公司 | Laser communication device and method for experiment teaching |
| CN107171726A (en) * | 2017-05-22 | 2017-09-15 | 宇龙计算机通信科技(深圳)有限公司 | Short-distance wireless information transferring method and mobile terminal |
| WO2019161521A1 (en) * | 2018-02-20 | 2019-08-29 | 顾士平 | Semiconductor wireless transmitting and receiving antenna |
| CN111294114A (en) * | 2018-12-07 | 2020-06-16 | 华为技术有限公司 | Optical communication node, relay node and optical communication system |
-
2000
- 2000-03-30 CN CN00217069U patent/CN2413441Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7580638B2 (en) | 2002-10-08 | 2009-08-25 | Finisar Corporation | Optical transceiver module with multipurpose internal serial bus |
| CN1866796B (en) * | 2006-05-31 | 2012-10-17 | 暨南大学 | SDMA visible light wireless access system |
| CN106385284A (en) * | 2016-09-09 | 2017-02-08 | 航天恒星科技有限公司 | Laser communication device and method for experiment teaching |
| CN107171726A (en) * | 2017-05-22 | 2017-09-15 | 宇龙计算机通信科技(深圳)有限公司 | Short-distance wireless information transferring method and mobile terminal |
| WO2019161521A1 (en) * | 2018-02-20 | 2019-08-29 | 顾士平 | Semiconductor wireless transmitting and receiving antenna |
| CN111294114A (en) * | 2018-12-07 | 2020-06-16 | 华为技术有限公司 | Optical communication node, relay node and optical communication system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |