CN2901711Y - Single fiber transmission changer capable of simultaneously transmitting two single fiber double wave system signal - Google Patents
Single fiber transmission changer capable of simultaneously transmitting two single fiber double wave system signal Download PDFInfo
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- CN2901711Y CN2901711Y CNU2005200665001U CN200520066500U CN2901711Y CN 2901711 Y CN2901711 Y CN 2901711Y CN U2005200665001 U CNU2005200665001 U CN U2005200665001U CN 200520066500 U CN200520066500 U CN 200520066500U CN 2901711 Y CN2901711 Y CN 2901711Y
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- single fiber
- division multiplexer
- wavelength division
- coupler
- wavelength
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Abstract
A single fiber transmission converter that can simultaneously transmit two single fiber double wave system signals, characterized in that the single fiber transmission converter comprises a coupler 1, a coupler 2 and a wavelength division multiplexer WDM 1, a wavelength division multiplexer WDM 2, a wavelength division multiplexer WDM 3 who constitute the pin A converter, and a coupler 3, a coupler 4, wavelength division multiplexer WDM 4, wavelength division multiplexer WDM 5, wavelength division multiplexer WDM 6 who constitute the pin B converter, wherein the two converters are connected up via the single optical fiber through the common port com1 of pin A and the common port com2 of the pin B. The utility model can be widely applied to the construction and the expansion of the main line of fiber-optical telecommunication, fiber-optical integrated service network, fiber-optical access network, optical fiber CATV and the node expansion of the metropolitan area network, the construction of LAN.
Description
Technical field
The utility model relates to optical-fibre communications, and particularly optical fiber of a kind of usefulness just can transmit the single fiber transmission converter of two single fiber double wave system signals simultaneously.
Background technology
Along with developing rapidly of optical communication, employed optical fiber cable is more and more.In order to solve some areas optical fiber situation in short supply and to make full use of existing fiber resource, technology that some are new and new product occur successively.Adopting the single fiber double wave optical transmission system of wavelength-division multiplex technique is exactly one of them.This system utilizes the two-way signaling (Fig. 1) of an optical fiber by a system of two wavelength transmission, and relatively it has saved the optical fiber of half with the two fine systems (Fig. 2) of single ripple commonly used.Except the single fiber double wave system that adopts wavelength-division multiplex technique, also having a class is only to use the single fiber list ripple transmission system (Fig. 3) of a wavelength.This type systematic adopts single fiber bi-directional transmission converter (single wavelength) to convert the two fine transmission of the single wave system system of two fibres to the single fiber bi-directional transmission.In addition, also have the single fiber bi-directional transmission converter (dual wavelength) of a class now based on wavelength-division multiplex technique and single fiber list ripple transmitted in both directions technology.The signal that this class single fiber bi-directional transmission converter (dual wavelength) can be united two fine single wave system of two different wave lengths simultaneously carries out four-way transmission (Fig. 4) by an optical fiber.More than existing corresponding product on this three classes single fiber transmission technology market.These products are in short supply and make full use of fiber resource and play a part positive to solving some areas optical fiber.Can but along with the development of optical communication, some new requirements be suggested, propose add a single fiber double wave system again on the simple optical fiber that has used as the place of having used single fiber double wave system at some.Promptly on an optical fiber, transmit the signal of two single fiber double wave systems.And for example used the place of single fiber double wave system to propose and on the simple optical fiber that has used, to insert optical fiber telephone, and separate can the work to the other side of this optical fiber telephone and original single fiber double wave system produce interference at some.
Summary of the invention
The purpose of this utility model is intended to overcome the deficiencies in the prior art and a kind of single fiber transmission converter that can transmit two single fiber double wave system signals simultaneously that optical fiber makes full use of fiber resource of both having saved is provided.
The purpose of this utility model is achieved in that
A kind of single fiber transmission converter that can transmit two single fiber double wave system signals simultaneously, it is characterized in that this single fiber transmission converter formed A end transducer and is formed B end transducer by coupler 3, coupler 4 and wavelength division multiplexer WDM4, wavelength division multiplexer WDM5, wavelength division multiplexer WDM6 by coupler 1, coupler 2 and wavelength division multiplexer WDM1, wavelength division multiplexer WDM2, wavelength division multiplexer WDM3, two transducers hold public port COM2 to connect to form by A end public port COM1 through simple optical fiber and B.
---described coupler 1, coupler 2, coupler 3, coupler 4, coupler 5 and coupler 6 all are provided with three ports.
---described wavelength division multiplexer WDM1, wavelength division multiplexer WDM2, wavelength division multiplexer WDM3, wavelength division multiplexer WDM4, wavelength division multiplexer WDM5, wavelength division multiplexer WDM6 all are provided with three ports.
---the light allocation proportion scope of described coupler 1 is 10%: 90%～30%: 70%; insert loss and isolation two indexes with decision; transmission range and laser protection are had substantial connection, and concrete data are on deciding by inserting loss and the requirement of isolation two indexes.
---the light allocation proportion scope of described coupler 2 is 10%: 90%～30%: 70%; insert loss and isolation two indexes with decision; transmission range and laser protection are had substantial connection, and concrete data are on deciding by inserting loss and the requirement of isolation two indexes.
---described wavelength division multiplexer WDM1 is provided with the port T that sends the first wavelength light signal and receive the second wavelength light signal
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15, wavelength division multiplexer WDM2 is provided with the port T that sends the second wavelength light signal and receive the first wavelength light signal
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13
---the light allocation proportion scope of described coupler 3 is 10%: 90%～30%: 70%, and concrete data are on deciding by inserting loss and the requirement of isolation two indexes.
---the light allocation proportion scope of described coupler 4 is 10%: 90%～30%: 70%; insert loss and isolation two indexes with decision; transmission range and laser protection are had substantial connection, and concrete data are on deciding by inserting loss and the requirement of isolation two indexes.
---described wavelength division multiplexer WDM5 is provided with the port T that sends the second wavelength light signal and receive the first wavelength light signal
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13, wavelength division multiplexer WDM6 is provided with the port T13R15 that sends the first wavelength light signal and receive the second wavelength light signal.
The utility model can transmit the signal of two single fiber double wave systems simultaneously on an optical fiber, be a kind of application of optical passive component in optical communication.Coupler is the passive device of a kind of widely used light, it have three ports (Fig. 5) light signal can from end " 3 " enter and separated into two parts from port " 1 ", " 2 " outputs (splitter).Two light signals also can enter from port " 1 ", " 2 " respectively, and synthetic back is in " 3 " outputs (mixer).Two light signals can also enter from port " 1 ", " 3 " respectively simultaneously, and the signal that enters " 1 " is from " 3 " output, and the signal that enters " 3 " is from " 1 ", " 2 " output.Wavelength division multiplexing (WDM) also has three ports: go into 1 port, go into 2 ports and public port (Fig. 6).Its effect is a partial wave and close ripple, promptly go into the light signal of 1 wavelength and can only and go between 1 port and pass through at public port, and the light signal of going into 2 wavelength can only and be gone between 2 ports and come and go at public port.
The utility model can transmit two single fiber double wave system signals simultaneously, and it saves the optical fiber of half than the isolated operation of two single fiber double wave systems.Can transmit simultaneously two single fiber double wave system signals the single fiber transmission converter structure chart as shown in Figure 8.Side a and b is made up of 3 wavelength division multiplexers (WDM) and two couplers.Its operation principle is as follows: with 1310nm is that the first wavelength light signal, 1550nm are that the second wavelength light signal is an example, and the 1310nm light signal that is sent by single fiber double wave optical transceiver is from the single fiber transmission converter T of A end
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15Port enters, and from the output of COM1 port, output signal is transferred to the COM2 port of B end by single fiber behind wavelength division multiplexer WDM1,1310nm coupler 1 and wavelength division multiplexer WDM3.The light signal that enters B end single fiber transmission converter is through wavelength division multiplexer WDM3,1310nm coupler 3 and wavelength division multiplexer WDM5 and port T
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13The back is received by the single fiber double wave optical transceiver that B holds, and finishes the transmission of first direction.Equally, from B end T
15R
13The 1550nm light signal that enters is through WDM5 → 1550nm coupler 4 → WDM4 → COM2 → single fiber → COM1 → WDM3 → 1550nm coupler 2 → WDM1 → T
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15→ A port single fiber double wave optical transceiver is finished the transmission of second direction.The ability that has had first systems of transmission of first and second directions just to possess to communicate.The 1550nm light signal that enters A end T15R13 is in addition finished the transmission of the 3rd direction through WDM2 → 1550nm coupler 2 → WDM3 → COM1 → single fiber → COM2 → WDM4 → 1550nm coupler 4 → WDM6 → T13R15 → B end single fiber double wave optical transceiver.Hold second system's single fiber double wave optical transceiver at the 1310nm light signal that B holds second system's single fiber double wave optical transceiver to send through T13R15 → WDM6 → 1310nm coupler → WDM4 → COM2 → single fiber → COM1 → WDM3 → 1310nm coupler 1 → WDM2 → T15R13 → A, finish the transmission of four direction, had third direction and four directions to transmission, second system has also just possessed the ability that communicates.
The key technical indexes of the present utility model sees Table 1.
The single fiber transmission converter that can transmit two single fiber double wave system signals simultaneously is applied in any combination that isolation technology in the EPON, optical coupling technology and light wave divide, belong to applied, innovative light passive product, it with an optical fiber just can full duplex two signals that adopt the single fiber double wave system of wavelength-division multiplex technique of transmission, just transmit the signal of the 1550nm wavelength of the signal of 1310nm wavelength of two different directions and two different directions simultaneously.The single fiber transmission converter that can transmit two single fiber double wave system signals simultaneously provides a transparent passage can for the signal of two systems, transmission rate is from 0～2.5Gbit/s continuous variable, and the single fiber transmission converter that can transmit two single fiber double wave system signals does not simultaneously need to change the optical transmission device at two ends when using.It is little, in light weight without power supply, volume, good stability and install and use easy to maintenance, can be widely used in the construction and the dilatation of fiber communication link net, optical fiber integrated services network, Optical Access Network, Optical CATV, the node dilatation of metropolitan area network, the construction of local area network (LAN).The use that can transmit the single fiber transmission converter of two single fiber double wave system signals simultaneously will produce positive effect to making full use of fiber resource, the transformation that solves some areas optical fiber short supply state, optical fiber transmission network and emergency first-aid repair etc.
Description of drawings
Fig. 1 is the single fiber double wave communication system block diagram of available technology adopting wavelength-division multiplex technique.
Fig. 2 is two fine single ripple transmission system block diagrams in the prior art.
Fig. 3 is a single fiber list ripple transmission system block diagram in the prior art.
Fig. 4 is single fiber bi-directional transmission (dual wavelength) system block diagram in the prior art.
Fig. 5 is a coupler schematic diagram in the utility model.
Fig. 6 is a wavelength division multiplexer schematic diagram in the utility model.
Fig. 7 is a communication system block diagram of the present utility model.
Fig. 8 is a structural representation of the present utility model, and to go into 1=1310nm, going into 2=1550nm is example.
Fig. 9 is of the present utility model at PDH, SDH, Ethernet application block diagram.
Figure 10 is the connection side block diagram of prior art at the logical machine station of traditional local telephone network.
Figure 11 is the connection side block diagram of the utility model at the logical machine station of traditional local telephone network.
Figure 12 is the single fiber double wave connection side of the system block diagram of prior art.
Figure 13 is that the utility model is used block diagram at photographone.
Figure 14 is the network diagram of prior art at traditional E PON.
Figure 15 is the application block diagram of the utility model in the EPON system.
Table 1 is a key technical indexes of the present utility model.
Table 2 is computers of the present utility model to piecing together result of the test, observes 1 month (work hours) continuously with bag long 1518 and does not have the packet losses of discovery.
Table 3 is online computing result of the tests of the present utility model, observes 1 month (work hours) continuously with bag long 1518 and does not have the packet loss of discovery.
Embodiment
One. the application in PDH, SPH and Ethernet etc.
The single fiber transmission converter that can transmit the single fiber signal of two single fiber double wave system signals simultaneously can be applied in PDH, SPH and Ethernet etc., and connection layout as shown in Figure 9.
Two. the application at Personal Handyphone System (local telephone network is logical) machine station
The single fiber transmission converter that can transmit the single fiber signal of two single fiber double wave system signals simultaneously can be applied in the Personal Handyphone System system, and connection layout is as shown in figure 10 shown in (prior art), Figure 11 (the utility model).
Three. in single fiber double wave system, insert the application of photographone
The single fiber transmission converter that can transmit the single fiber signal of two single fiber double wave system signals simultaneously can insert photographone in single fiber double wave system, connection layout as shown in Figure 12 and Figure 13.
Four. the application in the E-PON system
The single fiber transmission converter that can transmit the single fiber signal of two single fiber double wave system signals simultaneously can be applied connection layout such as Figure 14, shown in Figure 15 in the E-PON system.
System test
1. computer is to piecing together test: the results are shown in Table 2
In order to check the transmission performance of two systems simultaneously, computer 1 links to each other with A end single fiber double wave optical transceiver, the optical transceiver of B end system 1 is exported the input that is connected the optical transceiver 3 of A end system 2 with network again, and computer 2 links to each other with the output of B end system 2 optical transceivers 4.
2. online computing test: the results are shown in Table 3
In order to check the transmission performance of two systems simultaneously, computer 1 links to each other with A end single fiber double wave optical transceiver, the optical transceiver of B end system 1 is exported the input that is connected the optical transceiver 3 of A end system 2 with network again, and computer 2 links to each other with the output of B end system 2 optical transceivers 4.
Result of the test
1. the computer expert crosses result that Ethernet pieces together DNS shown in table 2, table 3
2. it is working properly that the computer expert crosses the converter system online
The single fiber transmission converter that can transmit two single fiber double wave system signals simultaneously is applied in any combination that isolation technology in the EPON, optical coupling technology and light wave divide, belong to applied, innovative light passive product, it with an optical fiber just can full duplex the transmission single fiber transmission converter that can transmit two single fiber double wave system signals simultaneously do not need to change the optical transmission device at two ends when using.It is little, in light weight without power supply, volume, good stability and install and use easy to maintenance, can be widely used in the construction and the dilatation of fiber communication link net, optical fiber integrated services network, Optical Access Network, Optical CATV, the node dilatation of metropolitan area network, the construction of local area network (LAN).The use that can transmit the single fiber transmission converter of two single fiber double wave system signals simultaneously will produce positive effect to making full use of fiber resource, the transformation that solves some areas optical fiber short supply state, optical fiber transmission network and emergency first-aid repair etc.
Claims (9)
1. single fiber transmission converter that can transmit two single fiber double wave system signals simultaneously, it is characterized in that this single fiber transmission converter formed A end transducer and is formed B end transducer by coupler 3, coupler 4 and wavelength division multiplexer WDM4, wavelength division multiplexer WDM5, wavelength division multiplexer WDM6 by coupler 1, coupler 2 and wavelength division multiplexer WDM1, wavelength division multiplexer WDM2, wavelength division multiplexer WDM3, two transducers hold public port COM2 to connect to form by A end public port COM1 through simple optical fiber and B.
2. single fiber transmission converter according to claim 1 is characterized in that described coupler 1, coupler 2, coupler 3, coupler 4, coupler 5 and coupler 6 all are provided with three ports.
3. single fiber transmission converter according to claim 1 is characterized in that described wavelength division multiplexer WDM1, wavelength division multiplexer WDM2, wavelength division multiplexer WDM3, wavelength division multiplexer WDM4, wavelength division multiplexer WDM5, wavelength division multiplexer WDM6 all are provided with three ports.
4. single fiber transmission converter according to claim 1 is characterized in that the light allocation proportion scope of described coupler 1 is 10%: 90%～30%: 70%.
5. single fiber transmission converter according to claim 1 is characterized in that the light allocation proportion scope of described coupler 2 is 10%: 90%～30%: 70%.
6. single fiber transmission converter according to claim 1 is characterized in that described wavelength division multiplexer WDM1 is provided with the port T that sends the first wavelength light signal and receive the second wavelength light signal
13R
15, wavelength division multiplexer WDM2 is provided with the port T that sends the second wavelength light signal and receive the first wavelength light signal
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13
7. single fiber transmission converter according to claim 1 is characterized in that the light allocation proportion scope of described coupler 3 is 10%: 90%～30%: 70%.
8. single fiber transmission converter according to claim 1 is characterized in that the light allocation proportion scope of described coupler 4 is 10%: 90%～30%: 70%.
9. single fiber transmission converter according to claim 1 is characterized in that described wavelength division multiplexer WDM5 is provided with the port T that sends the second wavelength light signal and receive the first wavelength light signal
15R
13, wavelength division multiplexer WDM6 is provided with the port T that sends the first wavelength light signal and receive the second wavelength light signal
13R
15
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200665001U CN2901711Y (en) | 2005-10-28 | 2005-10-28 | Single fiber transmission changer capable of simultaneously transmitting two single fiber double wave system signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200665001U CN2901711Y (en) | 2005-10-28 | 2005-10-28 | Single fiber transmission changer capable of simultaneously transmitting two single fiber double wave system signal |
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| Publication Number | Publication Date |
|---|---|
| CN2901711Y true CN2901711Y (en) | 2007-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2005200665001U Expired - Fee Related CN2901711Y (en) | 2005-10-28 | 2005-10-28 | Single fiber transmission changer capable of simultaneously transmitting two single fiber double wave system signal |
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| CN (1) | CN2901711Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345413A (en) * | 2014-10-31 | 2015-02-11 | 连德伦 | Six-direction single-fiber transmission converter |
| CN112929123A (en) * | 2019-12-06 | 2021-06-08 | 中国电信股份有限公司 | Optical transmission system, method and optical communication system |
-
2005
- 2005-10-28 CN CNU2005200665001U patent/CN2901711Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345413A (en) * | 2014-10-31 | 2015-02-11 | 连德伦 | Six-direction single-fiber transmission converter |
| CN112929123A (en) * | 2019-12-06 | 2021-06-08 | 中国电信股份有限公司 | Optical transmission system, method and optical communication system |
| CN112929123B (en) * | 2019-12-06 | 2023-05-02 | 中国电信股份有限公司 | Optical transmission system, method and optical communication system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20121028 |