CN105071857A - Cascading multi-span on-tower relay light transmission system - Google Patents
Cascading multi-span on-tower relay light transmission system Download PDFInfo
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- CN105071857A CN105071857A CN201510386879.2A CN201510386879A CN105071857A CN 105071857 A CN105071857 A CN 105071857A CN 201510386879 A CN201510386879 A CN 201510386879A CN 105071857 A CN105071857 A CN 105071857A
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Abstract
The invention relates to a cascading multi-span on-tower relay light transmission system, and the system comprises a business signal transmitter, a transmitting end business light transmission unit, and a monitoring light processing unit, wherein the business signal transmitter, the transmitting end business light transmission unit and the monitoring light processing unit are located at a transmitting end. The system also comprises one or more on-tower business light transmission units and a monitoring light processing unit, wherein the on-tower business light transmission units and the monitoring light processing unit are located a central power tower of lines. The system also comprises a receiving end business light transmission unit, a monitoring light processing unit and a business signal receiver, wherein the receiving end business light transmission unit, the monitoring light processing unit and the business signal receiver are located at a receiving end. The transmitting end business light transmission unit and monitoring light processing unit, the on-tower business light transmission units and monitoring light processing unit and the receiving end business light transmission unit and monitoring light processing unit respectively comprises at least two wavelength division multiplexers, so as to enable monitoring light and business signal light, which carry bidirectional monitoring information, to be transmitted in the same transmission fiber. The system can achieve the multi-span cascading on-tower relay amplification transmission, and has functions of remote monitoring and remote control of on-tower relay equipment.
Description
Technical field
The present invention relates to a kind of optical transmission device, particularly relate to relaying optical transmission system on a kind of cascade multi-span tower, belong to optical communication field.
Background technology
In field of power communication, OPGW (OpticalFiberCompositeOverheadGroundWire, also Optical Fiber composite overhead Ground Wire is claimed) fiber optic cable communications are Primary communication means, in extra-high voltage direct-current engineering and interchange engineering, can build with construction of line OPGW according to extra-high voltage grid demand.With the OPGW optical fiber cables signal of transmission line synchronized construction owing to being subject to the impact of the loss of optical fiber, dispersion and other environmental factor, cause light signal serious deterioration, the relaying that therefore must carry out signal amplifies, and this just needs to arrange optical fiber communication relay station.The mode of relay station is adopted to amplify signal transmission light, to improve signal light power limitation problem.The area of extra-high voltage direct-current, alternating current circuit process often has inconvenient traffic, and natural conditions are severe, and arrange optical communication relay station very difficult, construction investment is larger.Need in addition to carry out remote monitoring and Long-distance Control to trunking, therefore, an urgent demand reduces the construction of relay station technically, researches and develops supporting long distance control system simultaneously simultaneously, improves the safety and reliability of optical communication relay station further.
In this case, adopt that light in tower is put, light trunking traffic technology and remote control technology in tower, the construction of traditional light-repeating ship can be reduced, alleviate circuit operation maintenance workload, greatly save construction cost, improve light relay system reliability.
Summary of the invention
In view of the above problems, the object of the present invention is to provide relaying optical transmission system on a kind of cascade multi-span tower, for the extra long distance optical communication system of power communication.
Relaying optical transmission system on the cascade multi-span tower realizing the object of the invention, comprise business light transmitting element and the monitor optical processing unit of transmitting terminal, the business optical transmission unit on tower and monitor optical processing unit is positioned at, the business light receiving unit of receiving terminal and monitor optical processing unit in the middle of circuit.
The service transmitting unit of transmitting terminal comprises service signal transmitter and power amplifier, and the output of service signal transmitter is connected with the input of power amplifier.Monitor optical processing unit comprises monitor optical transceiver module, two wavelength division multiplexers and monitor message processor, the transmission end of two wavelength division multiplexers is connected with monitor optical transceiver module, the output of power amplifier is connected with the reflection end of first wave division multiplexer, the common port of first wave division multiplexer is connected with the reflection end of Second Wave division multiplexer, and the common port of Second Wave division multiplexer is connected with first paragraph Transmission Fibers.Monitor message processor by the information gathering of monitor optical transceiver module and control realization to the network management of system equipment.
In the middle of circuit, the business optical transmission unit be positioned on tower is a line amplifier, monitor optical processing unit comprises monitor optical transceiver module and two wavelength division multiplexers of line amplifier input, the monitor optical transceiver module of line amplifier output and two wavelength division multiplexers, and monitor message processor.First paragraph fiber-optic output is connected with the common port of the first wave division multiplexer of line amplifier input, the reflecting segment of first wave division multiplexer is connected with the common port of Second Wave division multiplexer, the reflecting segment of Second Wave division multiplexer is connected with the input of line amplifier, the transmission end access monitor optical transceiver module of two wavelength division multiplexers, the output of line amplifier is connected with the reflection end of outlet side first wave division multiplexer, the common port of first wave division multiplexer is connected with the reflection end of Second Wave division multiplexer, the common port of Second Wave division multiplexer is connected with the input of second segment Transmission Fibers, the transmission end access monitor optical transceiver module of two wavelength division multiplexers.Monitor message processor by the information gathering of monitor optical transceiver module and control realization to the network management of system equipment.
The business light receiving unit of receiving terminal comprises service signal receiver and light preamplifier, and monitor optical processing unit comprises monitor optical transceiver module, two wavelength division multiplexers and monitor message processor.The output of second segment Transmission Fibers is connected with the common port of first wave division multiplexer, first wave division multiplexer reflection end is connected with Second Wave division multiplexer common port, the transmission end of Second Wave division multiplexer is connected with preamplifier, the transmission end access monitor optical transceiver module of two wavelength division multiplexers.Monitor message processor by the information gathering of monitor optical transceiver module and control realization to the network management of system equipment.
On described cascade multi-span tower, relaying optical transmission system long-distance monitoring method is: the monitor optical transceiver module of system transmitting terminal sends control information and receives monitor message; Monitor optical transceiver module in circuit on tower receives and forwards control information; The monitor optical transceiver module of system receiving terminal sends control information and receives monitor message.
On described transmitting terminal, tower, the transmission monitor message carrier wavelength scope of the monitor optical transceiver module of TU Trunk Unit output is 1480nm ~ 1500nm;
On described receiving terminal, tower, the transmission monitor message carrier wavelength scope of the monitor optical transceiver module of TU Trunk Unit input is 1500nm ~ 1520nm;
On described cascade multi-span tower, the carrier wavelength scope of relaying optical transmission system flashlight is 1525nm ~ 1625nm;
The transmission rate of described monitor optical transceiver module is 2.048Mb/s;
The optical link budgets of described monitor optical transceiver module is greater than 44dB;
Two partial wave ports of described wavelength division multiplexer and the insertion loss of conjunction ripple port are lower than 0.6dB;
Isolation between the service port of described wavelength division multiplexer and policing port is greater than 30dB.
The invention has the beneficial effects as follows:
1, great advantage of the present invention does not need to build route relay, greatly reduce the construction cost of power communication system, by building relaying optical transmission system on cascade multi-span tower, the light amplification of long distance without electronic relay can be realized, remote monitoring and the Long-distance Control of trunking can be realized simultaneously.
2, the present invention adopts remote monitoring and the Long-distance Control of light relay equipment in tower, wherein in service signal light, tower, the monitor message carrier wave of trunking and the control information carrier wave of Ta Nei trunking transmit in same optical fiber, do not take service channel, greatly improve the service efficiency of fibre circuit.
3, the present invention is applicable to SDH and the WDM optical transmission system of any speed between 10Gb/s, 40Gb/s, 100Gb/s, is applicable to the coded system such as intensity modulated, amplitude modulation(PAM), is conducive to the smooth upgrade of system.
4, the present invention is applicable to the non-relay optical transmission system of overlength span of seabed and land.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of relaying optical transmission system on cascade multi-span tower;
Fig. 2 is optical amplification device and the supervising device structure chart of relaying optical transmission system transmitting terminal on cascade multi-span tower;
Fig. 3 is optical amplification device on cascade multi-span tower in relaying optical transmission system circuit on tower and supervising device structure chart;
Fig. 4 is optical amplification device and the supervising device structure chart of relaying optical transmission system receiving terminal on cascade multi-span tower;
Fig. 5 is the state information figure that transmitting terminal sends that order obtains business optical transmission unit and monitor optical processing unit on tower;
Fig. 6 is the state information figure that on the first tower, business optical transmission unit and monitor optical processing unit send business optical transmission unit and monitor optical processing unit on order acquisition second tower;
Fig. 7 is the state information figure that receiving terminal sends that order obtains business optical transmission unit and monitor optical processing unit on tower.
Wherein
1: service signal transmitter 2: power amplifier
3: transmitting terminal outlet side first wave division multiplexer 4: transmitting terminal outlet side Second Wave division multiplexer
5: transmitting terminal monitor optical transceiver module 6: transmitting terminal monitor message processor
7: first paragraph Transmission Fibers 8: input first wave division multiplexer on tower
9: input Second Wave division multiplexer 10 on tower: optical line amplifier
11: output first wave division multiplexer 12 on tower: output Second Wave division multiplexer on tower
13: monitor message processor 14 on tower: input monitor optical transceiver module on tower
15: output monitor optical transceiver module 16 on tower: second segment Transmission Fibers
17: receiving terminal input side first wave division multiplexer 18: receiving terminal input side Second Wave division multiplexer
19: preamplifier 20: receiving terminal monitor optical transceiver module
21: receiving terminal monitor message processor 22: dispersion compensation unit 23: service signal receiver
24: transmitting terminal business optical transmission unit and monitor optical processing unit
25: business optical transmission unit and monitor optical processing unit on tower
26: receiving terminal business optical transmission unit and monitor optical processing unit
2a: power amplifier input 2b: power amplifier output
31: transmitting terminal outlet side first wave division multiplexer transmission end 32: transmitting terminal outlet side first wave division multiplexer common port 33: transmitting terminal outlet side first wave division multiplexer reflection end
41: transmitting terminal outlet side Second Wave division multiplexer transmission end 42: transmitting terminal outlet side Second Wave division multiplexer common port 43: transmitting terminal outlet side Second Wave division multiplexer reflection end
51: transmitting terminal monitor optical transceiver module receiving terminal 52: transmitting terminal monitor optical transceiver module transmitting terminal
81: input first wave division multiplexer common port 82 on tower: input first wave division multiplexer transmission end 83 on tower: input first wave division multiplexer reflection end on tower
91: input Second Wave division multiplexer common port 92 on tower: input Second Wave division multiplexer transmission end 93 on tower: input Second Wave division multiplexer reflection end on tower
101: line amplifier input 102: line amplifier output
111: output first wave division multiplexer transmission end 112 on tower: output first wave division multiplexer common port 113 on tower: output first wave division multiplexer reflection end on tower
121: output Second Wave division multiplexer transmission end 122 on tower: output Second Wave division multiplexer common port 123 on tower: output Second Wave division multiplexer reflection end on tower
141: input monitor optical transceiver module receiving terminal 142 on tower: input monitor optical transceiver module transmitting terminal on tower
151: output monitor optical transceiver module receiving terminal 152 on tower: output monitor optical transceiver module transmitting terminal on tower
171: receiving terminal input side first wave division multiplexer common port 172: receiving terminal input side first wave division multiplexer transmission end 173: receiving terminal input side first wave division multiplexer reflection end
181: receiving terminal input side Second Wave division multiplexer common port 182: receiving terminal input side Second Wave division multiplexer transmission end 183: receiving terminal input side Second Wave division multiplexer reflection end
191: preamplifier input 192: preamplifier output
201: receiving terminal monitor optical transceiver module receiving terminal 202: receiving terminal monitor optical transceiver module transmitting terminal
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In order to technical solutions according to the invention are described, be described below by specific embodiment.
Fig. 1 shows the system construction drawing of relaying optical transmission system on cascade multi-span tower, comprise the service signal transmitter 1 connected in turn, power amplifier 2, transmitting terminal outlet side first wave division multiplexer 3, transmitting terminal outlet side Second Wave division multiplexer 4, transmitting terminal monitor optical transceiver module 5, transmitting terminal monitor message processor 6, first paragraph Transmission Fibers 7, input first wave division multiplexer 8 on tower, input Second Wave division multiplexer 9 on tower, optical line amplifier 10, output first wave division multiplexer 11 on tower, output Second Wave division multiplexer 12 on tower, monitor message processor 13 on tower, input monitor optical transceiver module 14 on tower, output monitor optical transceiver module 15 on tower, second segment Transmission Fibers 16, receiving terminal input side first wave division multiplexer 17, receiving terminal input side Second Wave division multiplexer 18, preamplifier 19, receiving terminal monitor optical transceiver module 20, receiving terminal monitor message processor 21, dispersion compensation unit 22, service signal receiver 23.
Wherein, service signal transmitter 1 sends service signal light, service signal light enters power amplifier 2, service signal light through amplifying enters transmitting terminal outlet side first wave division multiplexer 3 and transmitting terminal outlet side Second Wave division multiplexer 4 successively, after common port by Second Wave division multiplexer 4, service signal light and pilot signal light enter first paragraph Transmission Fibers 7.After first paragraph Transmission Fibers 7, service signal light and pilot signal light enter input first wave division multiplexer 8 and Second Wave division multiplexer 9 on tower successively, after two wavelength division multiplexers, flashlight enters circuit image intensifer 10, flashlight after amplification enters output first wave division multiplexer 11 and Second Wave division multiplexer 12 on tower, then second segment Transmission Fibers 16 is entered together with business monitoring light, receiving terminal input side first wave division multiplexer 17 and Second Wave division multiplexer 18 is entered after the output of second segment Transmission Fibers 16, service signal light after partial wave enters preamplifier 19 pairs of signals and amplifies, then dispersion compensation unit 22 is entered, finally enter service signal receiver 23.
Wherein, power amplifier 2, transmitting terminal outlet side first wave division multiplexer 3, transmitting terminal outlet side Second Wave division multiplexer 4, transmitting terminal monitor optical transceiver module 5, transmitting terminal monitor message processor 6 form transmitting terminal business optical transmission unit and monitor optical processing unit 24; On tower on input first wave division multiplexer 8, tower on input Second Wave division multiplexer 9, optical line amplifier 10, tower on output first wave division multiplexer 11, tower on output Second Wave division multiplexer 12, tower on monitor message processor 13, tower on input monitor optical transceiver module 14, tower output monitor optical transceiver module 15 form business optical transmission unit and monitor optical processing unit 25 on tower; Receiving terminal input side first wave division multiplexer 17, receiving terminal input side Second Wave division multiplexer 18, preamplifier 19, receiving terminal monitor optical transceiver module 20, receiving terminal monitor message processor 21 form receiving terminal business optical transmission unit and monitor optical processing unit 26.
According to the needs of line transmission length, on tower, business optical transmission unit and monitor optical processing unit 25 can arrange many groups in actual track.
Fig. 2 shows optical amplification device and the supervising device structure chart of relaying optical transmission system transmitting terminal on cascade multi-span tower.The input 2a of power amplifier 2 receives the service signal light of service signal transmitter 1 transmission, service signal light after amplification exports from power amplifier output 2b, then enter the transmission end 31 of transmitting terminal outlet side first wave division multiplexer 3, the receiving terminal 51 that the reflection end 33 of transmitting terminal outlet side first wave division multiplexer 3 connects transmitting terminal monitor optical transceiver module 5 transmits the first monitor optical; The common port 32 of transmitting terminal outlet side first wave division multiplexer 3 connects the transmission end 41 of transmitting terminal outlet side Second Wave division multiplexer 4, the reflection end 43 of transmitting terminal outlet side Second Wave division multiplexer 4 connects the transmitting terminal 52 of transmitting terminal monitor optical transceiver module 5 to transmit the second monitor optical, and the common port 42 of transmitting terminal outlet side Second Wave division multiplexer is connected to first paragraph Transmission Fibers 7.
The receiving terminal 51 of transmitting terminal monitor optical transceiver module 5 receives the state information about equipment on tower from business optical transmission unit on tower and monitor optical processing unit 25; The transmitting terminal 52 of transmitting terminal monitor optical transceiver module 5 is for sending command information to business optical transmission unit on tower and monitor optical processing unit 25; Transmitting terminal monitor optical transceiver module 5 is connected with transmitting terminal monitor message processor 6 and processes by transmitting terminal monitor message processor 6 information that transmitting terminal monitor optical transceiver module 5 receives and send.
Fig. 3 shows optical amplification device on cascade multi-span tower in relaying optical transmission system circuit on tower and supervising device structure chart.First paragraph Transmission Fibers 7 connects the common port 81 of input first wave division multiplexer 8 on tower, on tower, the reflection end 83 of input first wave division multiplexer connects the receiving terminal 141 of input monitor optical transceiver module 14 on tower to transmit the first monitor optical, on tower, the transmission end 82 of input first wave division multiplexer is connected with the common port 91 of input Second Wave division multiplexer 9 on tower, on tower, the reflection end 93 of input Second Wave division multiplexer 9 is connected to transmit the second monitor optical with the transmitting terminal 142 of input monitor optical transceiver module 14 on tower, input 101 pairs of service signal light that the service signal light that on tower, the transmission end 92 of input Second Wave division multiplexer 9 exports enters line amplifier 10 amplify, service signal light after amplification exports from the output 102 of optical line amplifier, then the transmission end 111 of output first wave division multiplexer 11 on tower is entered, on tower, the reflection end 113 of output first wave division multiplexer 11 is connected to transmit the first monitor optical with the receiving terminal 151 of output monitor optical transceiver module 15 on tower, on tower, the common port 112 of output first wave division multiplexer 11 is connected with the transmission end 121 of output Second Wave division multiplexer 12 on tower, on tower, the reflection end 123 of output Second Wave division multiplexer 12 is connected to transmit the second monitor optical with the output 152 of output monitor optical transceiver module 15 on tower, on tower, the common port 122 of output Second Wave division multiplexer 12 connects second segment Transmission Fibers 16.
Fig. 4 shows optical amplification device and the supervising device structure chart of relaying optical transmission system receiving terminal on cascade multi-span tower.Second segment Transmission Fibers 16 connects the common port 171 of receiving terminal input side first wave division multiplexer 17, the reflection end 173 of receiving terminal input side first wave division multiplexer 17 is connected to transmit the first monitor optical with the receiving terminal 201 of receiving terminal monitor optical transceiver module 20, the transmission end 172 of receiving terminal input side first wave division multiplexer 17 is connected with the common port 181 of receiving terminal input side Second Wave division multiplexer 18, the reflection end 183 of receiving terminal input side Second Wave division multiplexer 18 is connected to transmit the second monitor optical with the transmitting terminal 202 of receiving terminal monitor optical transceiver module 20, service signal light is after the transmission end 182 of receiving terminal input side Second Wave division multiplexer 18 exports, enter the input 191 of the preamplifier 19 of receiving terminal, service signal light after amplification is exported by the output 192 of preamplifier 19.
Fig. 5 shows the interactive mode of the first monitor optical and the second monitor optical between business optical transmission unit and monitor optical processing unit 25 on the transmitting terminal business optical transmission unit of relaying optical transmission system on cascade multi-span tower and monitor optical processing unit 24 and tower.Transmitting terminal monitor message processor 6, for sending command information and receiving the state information of relevant device on tower, sends command information by the first monitor optical carrying; State information is by the second monitor optical carrying.The transmitting terminal 52 of transmitting terminal monitor optical transceiver module 5 sends the first monitor optical, this first monitor optical is by after transmitting terminal outlet side first wave division multiplexer 3 and the photosynthetic ripple of service signal, after first paragraph Transmission Fibers 7, the receiving terminal 141 of input monitor optical transceiver module 14 on tower is entered by input first wave division multiplexer 8 partial wave on tower, on tower, monitor message processor 13 carries out internal information process after receiving this command information, obtain the state information of relevant device on tower, then the second monitor optical is sent by the transmitting terminal 142 of input monitor optical transceiver module 14 on tower, second monitor optical by input Second Wave division multiplexer 9 on tower reverses through after first paragraph Transmission Fibers 7, the receiving terminal 51 of the monitor optical transceiver module 5 of transmitting terminal is entered by transmitting terminal outlet side Second Wave division multiplexer 4, on the tower of final second monitor optical carrying, the state information of relevant device enters transmitting terminal monitor message processor 6 and processes.
Fig. 6 to show on cascade multi-span tower in relaying optical transmission system the interactive mode of the first monitor optical and the second monitor optical between business optical transmission unit and monitor optical processing unit on different tower 25 and 25 '.On first tower business optical transmission unit and monitor optical processing unit 25 tower on monitor message processor 13 for sending command information and receiving from the state information of business optical transmission unit and monitor optical processing unit 25 ' on the second tower; On second tower business optical transmission unit and monitor optical processing unit 25 ' tower on monitor message processor 13 ' for receiving command information and sending the state information of each associated components and equipment in business optical transmission unit and monitor optical processing unit 25 ' on the second tower.On first tower business optical transmission unit and monitor optical processing unit 25 tower on the first monitor optical carrying that sent by the output 152 of output monitor optical transceiver module 15 on the first tower of the command information that sends of monitor message processor 13, after second segment Transmission Fibers 16, enter the input 141 ' of input monitor optical transceiver module 14 ' on the second tower.On second tower, monitor message processor 13 ' carries out internal information process after receiving this command information, obtain the state information of relevant device on second tower, then the second monitor optical is sent by the transmitting terminal 142 ' of input monitor optical transceiver module 14 ' on the second tower, second monitor optical enters the receiving terminal 151 of output monitor optical transceiver module 15 on the first tower after second segment Transmission Fibers 16, and on the second tower of final second monitor optical carrying, the state information of relevant device enters monitor message processor 13 on the first tower.
Business optical transmission unit and monitor optical processing unit 25 and the interactive mode of the first monitor optical and the second monitor optical between receiving terminal business optical transmission unit and monitor optical processing unit 26 on the tower that Fig. 7 shows relaying optical transmission system on cascade multi-span tower.On tower business optical transmission unit and monitor optical processing unit 25 tower on monitor message processor 13 for receiving command information and sending the state information of business optical transmission unit and monitor optical processing unit 25 on tower; Receiving terminal monitor message processor 21 is for sending command information and receiving the state information of relevant device on tower.Send command information by the second monitor optical carrying; State information is by the first monitor optical carrying.The transmitting terminal 202 of the monitor optical transceiver module 20 of receiving terminal sends the second monitor optical of carrying command information, oppositely enter after second segment Transmission Fibers 16 transmission through receiving terminal input side Second Wave division multiplexer 18, the receiving terminal 151 of output monitor optical transceiver module 15 on tower is entered by output first wave division multiplexer 11 on tower, on tower, monitor message processor 13 carries out internal information process after receiving this command information, obtain the state information of relevant device on tower, then the first monitor optical is sent by the transmitting terminal 152 of output monitor optical transceiver module 15 on tower, first monitor optical of loaded state information enters second segment Transmission Fibers 16 after output Second Wave division multiplexer on tower 12 with the photosynthetic ripple of service signal be exaggerated, by entering the receiving terminal 201 of the monitor optical transceiver module 20 of receiving terminal after receiving terminal input side first wave division multiplexer 17 partial wave, on the tower of final first monitor optical carrying, the state information of relevant device enters receiving terminal monitor message processor 21.
Shown in Fig. 5 is the state information that transmitting terminal sends that order obtains business optical transmission unit and monitor optical processing unit on tower; Shown in Fig. 6 be state information that on the first tower, business optical transmission unit and monitor optical processing unit send business optical transmission unit and monitor optical processing unit on order acquisition second tower, shown in Fig. 7 be the state information that receiving terminal sends that order obtains business optical transmission unit and monitor optical processing unit on tower.These are only a kind of way of example, in addition, on tower, business optical transmission unit and monitor optical processing unit send order and obtain business optical transmission unit and monitor optical processing unit on the state information of transmitting terminal, the second tower and send business optical transmission unit and monitor optical processing unit on the state information of business optical transmission unit and monitor optical processing unit on order acquisition first tower, tower and send order and obtain the modes such as the state information of receiving terminal and all can realize, and are only that direction is different.Therefore on this cascade multi-span tower, relaying optical transmission system can realize the state information getting business optical transmission unit and monitor optical processing unit all towers from transmitting terminal, and the state information of receiving terminal; On the contrary, the state information of business optical transmission unit and monitor optical processing unit on all towers also can be got at receiving terminal, and the state information of transmitting terminal.
Therefore should be appreciated that the first monitor optical and the second monitor optical only can be that used wavelength is different, and have nothing to do with the expression order of actual bearer and/or the actual monitored information content of state.Therefore when the carrier wavelength scope of service signal light is 1525nm ~ 1625nm, the wave-length coverage of the first monitor optical and the second monitor optical can be respectively 1480nm ~ 1500nm and 1500nm ~ 1520nm, the transmission rate of monitor optical transceiver module is preferably 2.048Mb/s, and its optical link budgets is preferably greater than 44dB.The insertion loss of each wavelength division multiplexer above-mentioned is lower than 0.6dB, and the isolation between service port and policing port is greater than 30dB.
The foregoing is only wherein a kind of embodiment of the present invention, not in order to limit the present invention, on cascade multi-span tower, relaying optical transmission system has allowed business optical transmission unit and monitor optical processing unit on one or more tower.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. relaying optical transmission system on cascade multi-span tower, is characterized in that comprising: business optical transmission unit and monitor optical processing unit (25), the receiving terminal business optical transmission unit being positioned at receiving terminal and monitor optical processing unit (26) and service signal receiver (23) on the one or more towers be positioned at the service signal transmitter (1) of transmitting terminal and transmitting terminal business optical transmission unit and monitor optical processing unit (24), being positioned on circuit intervening power pylon; Described transmitting terminal business optical transmission unit and monitor optical processing unit (24), tower all at least comprise two wavelength division multiplexers in business optical transmission unit and monitor optical processing unit (25), receiving terminal business optical transmission unit and monitor optical processing unit (26) transmit in same Transmission Fibers with the monitor optical and service signal light that make to carry bidirectional monitoring information.
2. relaying optical transmission system on cascade multi-span tower as claimed in claim 1, is characterized in that: described transmitting terminal business optical transmission unit and monitor optical processing unit (24) comprise power amplifier (2), transmitting terminal outlet side first wave division multiplexer (3), transmitting terminal outlet side Second Wave division multiplexer (4), transmitting terminal monitor optical transceiver module (5), transmitting terminal monitor message processor (6), on described tower, business optical transmission unit and monitor optical processing unit (25) comprise input first wave division multiplexer (8) on tower, input Second Wave division multiplexer (9) on tower, optical line amplifier (10), output first wave division multiplexer (11) on tower, output Second Wave division multiplexer (12) on tower, monitor message processor (13) on tower, input monitor optical transceiver module (14) on tower, output monitor optical transceiver module (15) on tower, described receiving terminal business optical transmission unit and monitor optical processing unit (26) comprise receiving terminal input side first wave division multiplexer (17), receiving terminal input side Second Wave division multiplexer (18), preamplifier (19), receiving terminal monitor optical transceiver module (20), receiving terminal monitor message processor (21).
3. relaying optical transmission system on the cascade multi-span tower according to any one of claim 1-2, is characterized in that: be provided with dispersion compensation unit (22) further at described receiving terminal business optical transmission unit with between monitor optical processing unit (26) and service signal receiver (23).
4. relaying optical transmission system on cascade multi-span tower as claimed in claim 3, it is characterized in that: the input of described power amplifier (2) receives the service signal light that service signal transmitter (1) sends, service signal light after amplification exports from power amplifier output, then enter the transmission end of transmitting terminal outlet side first wave division multiplexer (3), the receiving terminal of reflection end connection transmitting terminal monitor optical transceiver module (5) of transmitting terminal outlet side first wave division multiplexer (3) transmits the first monitor optical; The common port (32) of transmitting terminal outlet side first wave division multiplexer (3) connects the transmission end of transmitting terminal outlet side Second Wave division multiplexer (4), the reflection end of transmitting terminal outlet side Second Wave division multiplexer (4) connects the transmitting terminal of transmitting terminal monitor optical transceiver module (5) to transmit the second monitor optical, and the common port of transmitting terminal outlet side Second Wave division multiplexer (4) is connected to Transmission Fibers.
5. relaying optical transmission system on cascade multi-span tower as claimed in claim 4, it is characterized in that: Transmission Fibers connects the common port of input first wave division multiplexer (8) on tower, on tower, the reflection end of input first wave division multiplexer (8) connects the receiving terminal of input monitor optical transceiver module (14) on tower to transmit the first monitor optical, on tower, the transmission end of input first wave division multiplexer (8) is connected with the common port of input Second Wave division multiplexer (9) on tower, on tower, the reflection end of input Second Wave division multiplexer (9) is connected to transmit the second monitor optical with the transmitting terminal of input monitor optical transceiver module (14) on tower, the service signal light that on tower, the transmission end of input Second Wave division multiplexer (9) exports enters the input of line amplifier (10) to amplify service signal light, service signal light after amplification exports from the output of optical line amplifier (10), then the transmission end of output first wave division multiplexer (11) on tower is entered, on tower, the reflection end of output first wave division multiplexer (11) is connected to transmit the first monitor optical with the receiving terminal of output monitor optical transceiver module (15) on tower, on tower, the common port of output first wave division multiplexer (11) is connected with the transmission end of output Second Wave division multiplexer (12) on tower, on tower, the reflection end of output Second Wave division multiplexer (12) is connected to transmit the second monitor optical with the output of output monitor optical transceiver module (15) on tower, on tower, the common port of output Second Wave division multiplexer (12) is connected to another section of Transmission Fibers.
6. relaying optical transmission system on cascade multi-span tower as claimed in claim 5, it is characterized in that: Transmission Fibers connects the common port of receiving terminal input side first wave division multiplexer (17), the reflection end of receiving terminal input side first wave division multiplexer (17) is connected to transmit the first monitor optical with the receiving terminal of receiving terminal monitor optical transceiver module (20), the transmission end of receiving terminal input side first wave division multiplexer (17) is connected with the common port of receiving terminal input side Second Wave division multiplexer (18), the reflection end of receiving terminal input side Second Wave division multiplexer (18) is connected to transmit the second monitor optical with the transmitting terminal of receiving terminal monitor optical transceiver module (20), service signal light is after the transmission end of receiving terminal input side Second Wave division multiplexer (18) exports, enter the input of the preamplifier (19) of receiving terminal, service signal light after amplification is exported by the output of preamplifier (19), then dispersion compensation unit (22) is entered, finally enter service signal receiver (23).
7. relaying optical transmission system on the cascade multi-span tower according to any one of claim 1-6, is characterized in that: the carrier wavelength scope of described service signal light is 1525nm ~ 1625nm.
8. relaying optical transmission system on the cascade multi-span tower according to any one of claim 1-7, is characterized in that: the carrier wavelength scope of the monitor optical of described carrying bidirectional monitoring information is 1480nm ~ 1500nm and 1500nm ~ 1520nm.
9. relaying optical transmission system on the cascade multi-span tower according to any one of claim 1-8, is characterized in that: the transmission rate of the monitor optical of described carrying bidirectional monitoring information is 2.048Mb/s.
10. relaying optical transmission system on cascade multi-span tower as claimed in any one of claims 1-9 wherein, is characterized in that: the optical link budgets of described monitor optical is greater than 44dB; The insertion loss of described each wavelength division multiplexer is lower than 0.6dB, and the isolation of described service signal light and monitor optical is greater than 30dB.
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| CN201510386879.2A CN105071857B (en) | 2015-06-30 | 2015-06-30 | Optical transmission system is relayed on cascade multi-span tower |
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| CN201510386879.2A CN105071857B (en) | 2015-06-30 | 2015-06-30 | Optical transmission system is relayed on cascade multi-span tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490740A (en) * | 2015-12-30 | 2016-04-13 | 桂林创研科技有限公司 | Optical wavelength division multiplexing system |
| CN113824500A (en) * | 2021-10-25 | 2021-12-21 | 国家电网有限公司信息通信分公司 | Passive optical amplification unit and multiband ultra-long span transmission system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105490740A (en) * | 2015-12-30 | 2016-04-13 | 桂林创研科技有限公司 | Optical wavelength division multiplexing system |
| CN113824500A (en) * | 2021-10-25 | 2021-12-21 | 国家电网有限公司信息通信分公司 | Passive optical amplification unit and multiband ultra-long span transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105071857B (en) | 2019-01-22 |
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