CN2636504Y - Double circulating coupling single fiber double wave four phase transmission inverter - Google Patents
Double circulating coupling single fiber double wave four phase transmission inverter Download PDFInfo
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- CN2636504Y CN2636504Y CNU032743068U CN03274306U CN2636504Y CN 2636504 Y CN2636504 Y CN 2636504Y CN U032743068 U CNU032743068 U CN U032743068U CN 03274306 U CN03274306 U CN 03274306U CN 2636504 Y CN2636504 Y CN 2636504Y
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Abstract
The utility model relates to an optical communication transmission device, which is particularly suitable for a dual-wavelength single-fiber four-way transmission converter or a dual-circulative coupling single-fiber four-way transmission converter, which is connected with two intercommunicated optical transmitters and receivers to realize two-way transmission. Wherein, one way is connected with an optical transmission source and the other way receives the optical transmission source. These two single-fiber dual-wavelength four-way transmission converters are connected through a single fiber to realize communication transmission. The utility model is characterized in that the converter is composed of a wavelength division multiplexer and two circulators. Each circulator is respectively an optical transmitting terminal and an optical receiving terminal of the optical transmitter and receiver. Signals transmitted and received by the optical transmitter and receiver are connected with one terminal of the single fiber through the circulator and the multiplexer. Compared with prior arts, the utility model has the advantages of four-way signal transmission on one fiber, no power source, small size, light weight, high stability and reliability, easy utilization, mounting and maintenance.
Description
Technical field
The utility model has related to a kind of optical communication transmitting device, is specially adapted to dual wavelength single fiber four-way transmission converter.
Background technology
Mostly present optical fiber telecommunications system is the two fine systems of single ripple, i.e. each transmits the signal of single wavelength transmitting-receiving with an optical fiber.Along with the fast development of optical communication, the use amount of optical fiber is increasing, and is in short supply and make full use of fiber resource in order to solve some areas optical fiber, adopts a kind of demand of single fiber bi-directional transmission having become optical communication development.Solve the single fiber bi-directional transmission demand and can adopt the multiplexing method of two wave-length divisions, method that also can single wavelength transmitted in both directions.The report of existing two-way OADM module in the prior art, the OADM module of its primary structure is made up of multiplexer, optical switch display, demodulation multiplexer etc., optical fiber links to each other with demodulation multiplexer, demodulation multiplexer links to each other with optical switch by optical fiber, the optical switch display is by optical fiber and demultiplexer, the OADM module of this structure has proposed restriction to road wavelength of optical signal up and down, i.e. the light signal of the identical wavelength of both direction transmission can not be up and down road up and down simultaneously.Also form by a plurality of circulators, a plurality of erbium-doped fiber amplifier, a plurality of reflective add-drop multiplexing module in the prior art by the two-way OADM module that adopts, but its complex structure, the cost height; Adopted catoptric arrangement, made this module, be unfavorable for the raising of this module performance the inhibition ability drop of reflecting background; Support the ability drop of light wave dynamic routing.
The capable coupling of dicyclo of the present utility model single fiber double wave four-way transmission converter is exactly to adopt dual wavelength to carry out the product of single fiber four-way transmission.Use these products not need to change the transmission equipment at communication system two ends, only need add dual wavelength single fiber four-way transmission converter, just can will carry out the four-way transmission at the signal on two optical fiber and to an optical fiber originally at the two ends of circuit.It is without power supply, and volume is little, in light weight, and stability and reliability height are installed and used easy to maintenance.Dual wavelength single fiber four-way transmission converter can provide a transparent channel to signal, is applicable to Ethernet, and PDH, SDH transmission network are carried out the transmission of single fiber four-way signal.
Summary of the invention
The purpose of this utility model is achieved by the following technical solution: the capable coupling of a kind of dicyclo of the utility model single fiber double wave four-way transmission converter, be connected to the optical transceiver of mutual communication, single fiber double wave four-way transmission converter divides two-way to transmit with two optical transceivers respectively, one the tunnel is to connect to send light source, one the tunnel receives light source, transmit by simple optical fiber connection carrying out communication between the single fiber double wave four-way transmission converter, it is characterized in that described transducer is made up of wavelength division multiplexer and two circulators, each circulator is connected with receiving terminal with the light transmitting terminal of optical transceiver respectively, the transmission of optical transceiver, received signal connects the single fiber end again through circulator and multiplexer.
Circulator described in the utility model adopts 1310nm and 1550nm circulator respectively, and in three ports of this circulator, two ports are connected with receiving terminal with the transmitting terminal of optical transceiver, and the 3rd port is connected with wavelength division multiplexer.Described wavelength division multiplexer adopts the 1310nm/1550nmWDM wavelength division multiplexer, and it is connected with 1550nm circulator and single fiber end with 1310nm respectively.The 1550nm wavelength signals that the 1310nm wavelength of optical transceiver 1 sends signal and optical transceiver 2 enters 1310nm circulator and 1550nm circulator from T1 and T2; The output signal of two circulators is through synthetic one road signal of WDM wavelength division multiplexer.The synthetic signal of WDM wavelength division multiplexer arrives the opposite end by single fiber COM end through simple optical fiber, the light signal of 1310nm wavelength and 1550nm wavelength is divided into two-way behind the WDM wavelength division multiplexer, one road 1310nm wavelength arrives opposite end 1310nm circulator, and another road 1550nm wavelength signals then arrives the 1550nm circulator of opposite end.Described two paths of signals is delivered to receiving terminal R1, the R2 of the 1550nm wavelength of the 1310nm wavelength of opposite end optical transceiver 1 and optical transceiver 2 respectively.
Wavelength division multiplexer external connection end described in the utility model is connected with remote another wavelength division multiplexer communication by the 1310nm/1550nm single fiber.
The utility model compared with prior art has signal and carry out the four-way transmission on an optical fiber, and without power supply, volume is little, in light weight, and stability and reliability height are installed and used easy to maintenance.
Description of drawings
Fig. 1 is a system configuration schematic diagram of the present utility model.
Fig. 2 is a converter structure schematic diagram of the present utility model.
Fig. 3 is a converter structure outline drawing of the present utility model.
Specific embodiment
Below in conjunction with description of drawings the utility model is described in further detail: as shown in Figure 1, the capable coupling of dicyclo of the present utility model single fiber double wave four-way transmission converter is connected respectively to four optical transceivers of mutual communication, transducer divides two-way to transmit with two optical transceivers respectively, one the tunnel is to connect to send light source, and one the tunnel receives light source.Transmit by simple optical fiber connection carrying out communication between the transducer.As shown in Figure 1 and Figure 2, single fiber double wave four-way transmission converter of the present utility model is made up of a 1310nm/1550nmWDM wavelength division multiplexer, 1310nm circulator and 1550nm circulator and corresponding connectors.It has five interfaces: 1310nm input port (T1), 1310nm delivery outlet (R1), 1550nm input port (T2), 1550nm delivery outlet (R2) and single fiber interface (COM).Except " COM " port adopted FC/APC type connector, all the other 4 ports all adopted FC/UPC type connector.STO-02-02 single fiber double wave four-way transmission converter can transmit the signal of two systems simultaneously with an optical fiber bidirectional, and one of these two system adopt the 1310nm wavelength, and one is adopted the 1550nm wavelength.The transmission of system 1 (1310nm) is connected with T1, receives to be connected with R1.The transmission of system 2 (1550nm) is connected with T2, receives to be connected with R2.The signal of four direction communicates with corresponding single fiber (COM) port of opposite end by simple optical fiber from single fiber (COM) port.The transducer base plate has four fixing holes, and available M3 screw is fixed.Transducer can be installed on the fibre distribution frame, also can be positioned over other place in the machine room.The signal of the transmission signal of system 1 (1310nm wavelength) and system 2 (1550nm wavelength) enters 1310nm circulator and 1550nm circulator from T1 and T2.The output signal of two circulators is through synthetic one road signal of WDM wavelength division multiplexer.Synthetic signal arrives the opposite end by single fiber (COM) end through simple optical fiber; Arrive the 1310nm wavelength of opposite end and the light signal of 1550nm wavelength and be divided into two-way behind the WDM wavelength division multiplexer, one road 1310nm wavelength arrives opposite end 1310nm circulator, and another road 1550nm wavelength signals then arrives the 1550nm circulator of opposite end.Two paths of signals is delivered to receiving terminal R1, the R2 of system 1 (1310nm wavelength) and system 2 (1550nm wavelength) respectively, finishes the both direction transmission of two wavelength of an optical fiber.The 1310nm wavelength of same B end system 1 and system 2 and the signal of 1550nm wavelength are delivered to A respectively by the effect of two ends WDM wavelength division multiplexer and two circulators and are held corresponding receiving terminal R1, R2, finish the transmission of two two other directions of wavelength of same optical fiber.As Fig. 3 is port arrangements of the present utility model and shape assumption diagram.
Performance index of the present utility model are as follows:
| Insert loss | 1310nm(T1→COM)＜2db(COM →R1)＜2db 1550nm(T2→COM)＜2db(COM →R2)＜2db | |
| Isolation | 1310nm(COM→T1)≥50db 1310nm(COM→T2)≥50db 1550nm(COM→T1)≥50db 1550nm(COM→T2)≥50db | |
| The wavelength isolation | 1310nm(COM→R2)≥40db 1550nm(COM→R1)≥40db | |
| The near-end isolation | 1310nm(T1→T2)≥50db 1550nm(T2→T1)≥50db | |
| Directivity | 1310nm(T1→R1)≥55db 1310nm(T1→R2)≥55db 1550nm(T2→R1)≥55db 1550nm(T2→R2)≥55db | |
| Return loss | 1310nm(T1)≥50db 1550nm(T2)≥50db 1310nm(COM)≥50db 1550nm(COM)≥50db | |
| Connector | COM | FC/APC |
| T1、T2、R1、R2 | FC/UPC | |
Claims (7)
1, the capable coupling of a kind of dicyclo single fiber double wave four-way transmission converter, be connected to the optical transceiver of mutual communication, single fiber double wave four-way transmission converter divides two-way to transmit with two optical transceivers respectively, one the tunnel is to connect to send light source, one the tunnel receives light source, transmit by simple optical fiber connection carrying out communication between the single fiber double wave four-way transmission converter, it is characterized in that described transducer is made up of wavelength division multiplexer and two circulators, each circulator is connected with receiving terminal with the light transmitting terminal of optical transceiver respectively, the transmission of optical transceiver, received signal connects the single fiber end again through circulator and multiplexer.
2, the capable coupling of dicyclo according to claim 2 single fiber double wave four-way transmission converter, it is characterized in that described circulator adopts 1310nm and 1550nm circulator respectively, in three ports of this circulator, two ports are connected with receiving terminal with the transmitting terminal of optical transceiver, and the 3rd port is connected with wavelength division multiplexer.
3, the capable coupling of dicyclo according to claim 2 single fiber double wave four-way transmission converter is characterized in that described wavelength division multiplexer adopts the 1310nm/1550nmWDM wavelength division multiplexer, and it is connected with 1550nm circulator and single fiber end with 1310nm respectively.
4, the capable coupling of dicyclo according to claim 3 single fiber double wave four-way transmission converter is characterized in that the 1310nm wavelength transmission signal of described optical transceiver 1 and the 1550nm wavelength signals of optical transceiver 2 enter 1310nm circulator and 1550nm circulator from T1 and T2; The output signal of two circulators is through synthetic one road signal of WDM wavelength division multiplexer.
5, the capable coupling of dicyclo according to claim 4 single fiber double wave four-way transmission converter, it is characterized in that the synthetic signal of WDM wavelength division multiplexer arrives the opposite end by single fiber COM end through simple optical fiber, the light signal of 1310nm wavelength and 1550nm wavelength is divided into two-way behind the WDM wavelength division multiplexer, one road 1310nm wavelength arrives opposite end 1310nm circulator, and another road 1550nm wavelength signals then arrives the 1550nm circulator of opposite end.
6, the capable coupling of dicyclo according to claim 4 single fiber double wave four-way transmission converter is characterized in that described two paths of signals delivers to receiving terminal R1, the R2 of the 1550nm wavelength of the 1310nm wavelength of opposite end optical transceiver 1 and optical transceiver 2 respectively.
7,, it is characterized in that described wavelength division multiplexer external connection end is connected with remote another wavelength division multiplexer communication by the 1310nm/1550nm single fiber according to claim 3 or the capable coupling of 5 or 6 described dicyclos single fiber double wave four-way transmission converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032743068U CN2636504Y (en) | 2003-09-04 | 2003-09-04 | Double circulating coupling single fiber double wave four phase transmission inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032743068U CN2636504Y (en) | 2003-09-04 | 2003-09-04 | Double circulating coupling single fiber double wave four phase transmission inverter |
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| Publication Number | Publication Date |
|---|---|
| CN2636504Y true CN2636504Y (en) | 2004-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032743068U Expired - Fee Related CN2636504Y (en) | 2003-09-04 | 2003-09-04 | Double circulating coupling single fiber double wave four phase transmission inverter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427566A (en) * | 2011-11-15 | 2012-04-25 | 中国联合网络通信集团有限公司 | Coexistence and evolution method and system from traditional optical network to target optical network |
| CN101488807B (en) * | 2008-01-14 | 2012-05-30 | 瑞轩科技股份有限公司 | Data transmission system using optical fiber |
| WO2022068656A1 (en) * | 2020-09-29 | 2022-04-07 | 华为技术有限公司 | Single-fiber bidirectional optical transmission apparatus, wavelength division device and optical transmission system |
-
2003
- 2003-09-04 CN CNU032743068U patent/CN2636504Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488807B (en) * | 2008-01-14 | 2012-05-30 | 瑞轩科技股份有限公司 | Data transmission system using optical fiber |
| CN102427566A (en) * | 2011-11-15 | 2012-04-25 | 中国联合网络通信集团有限公司 | Coexistence and evolution method and system from traditional optical network to target optical network |
| WO2022068656A1 (en) * | 2020-09-29 | 2022-04-07 | 华为技术有限公司 | Single-fiber bidirectional optical transmission apparatus, wavelength division device and optical transmission system |
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| 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 |