CN103207432A - Single fiber multiplexer system - Google Patents
Single fiber multiplexer system Download PDFInfo
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- CN103207432A CN103207432A CN2012100249373A CN201210024937A CN103207432A CN 103207432 A CN103207432 A CN 103207432A CN 2012100249373 A CN2012100249373 A CN 2012100249373A CN 201210024937 A CN201210024937 A CN 201210024937A CN 103207432 A CN103207432 A CN 103207432A
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Abstract
The invention discloses a single fiber multiplexer system. The single fiber multiplexer system comprises a first external device generating a first signal, a second external device generating a second signal, a first fiber multiplexer sending the first signal and receiving the second signal, a second fiber multiplexer sending the second signal and receiving the first signal, and an optical fiber transmitting the first signal and the second signal. The second fiber multiplexer converts wavelength of the second signal into wavelength different from that of the first signal so as to facilitate transmission in the optical fiber, and the first fiber multiplexer converts the wavelength of the second signal into the wavelength identical to that of the first signal, then transmits the wavelength to the first external device and performs transmission through a single optical fiber in a different-wavelength mode. Due to the fact that transmission and receiving are performed in the same path, time delay is reduced, and material cost and labor cost are decreased.
Description
Technical field
The present invention relates to a kind of fiber-optic signal transfer system, especially only use an optical fiber, the fiber-optic signal transfer system that the collocation sonet multiplexer transmits with different wave length.
Background technology
Consult Fig. 1, the synoptic diagram of prior art fiber-optic signal transfer system.As shown in Figure 1, existing fiber-optic signal transfer system comprises first and connects end 11, second and connect end 13, first optical fiber 21, second optical fiber 23, first packet transfer device 31 and second packet transfer device 33.First connects end 11 is connected with first packet transfer device 31, and first packet transfer device 31 is in order to producing signal, and connects end 11 by first and send, or processing connects by first and holds 11 signals that receive.In the same manner, second connects end 13 is connected with second packet transfer device 33, and second packet transfer device 33 is in order to producing signal, and connects end 13 by second and send, or processing connects by second and holds 13 signals that receive.
First connects end 11 is connected with first optical fiber 21 and second optical fiber 23, first connect the end 11 by first optical fiber 21 with signal deliver to second connect the end 13, and receive the signal that connects end 13 from second by second optical fiber 21, in first optical fiber 21 and second optical fiber 23, be to transmit with identical wavelength wherein.
Actual applying, the actual range of first packet transfer device 31 and second packet transfer device 33 may reach tens kilometers, even hundreds of kilometer, the length L 1 of first optical fiber 21 and the length L 2 of second optical fiber 23 are difficult to identical in fact, therefore, because length is asymmetric, has tangible time delay problem and produce, and causing the relevant delay of existing operating system processing time data packet, time delay is proportional to
Wherein Z represents length, the variation of length can make that time delay has obvious variation, for the problem that postpones settling time, usually need be with Dot Clock, connect end 11 and first first and connect the modes that end 13 creates domains (Time Domain) and compensate.
Yet, at present along with the change of hardware facility, the enlarging of fibre system, this can make the situation of time delay constantly change, and make user's use feel not good, and all need to have the technician to carry out the adjustment of Dot Clock at any time, in a disguised form need higher human cost, therefore, need a kind of technology that can improve the prior art problem.
Summary of the invention
The object of the present invention is to provide a kind of single fiber multiplexer system, in order to solve existing technology fiber-optic signal transfer system, because transmission length is longer, the time delay that causes increases, it is not good that user's use is felt, and often need there be the technician to carry out the adjustment of Dot Clock, in a disguised form needs the problem of higher human cost.
A kind of single fiber multiplexer system of the present invention comprises: first external unit, in order to produce first signal; Second external unit is in order to produce secondary signal; First sonet multiplexer is connected with this first external unit, in order to send this first signal and to receive this secondary signal to this first external unit; Second sonet multiplexer is connected with this second external unit, in order to send this secondary signal and to receive this first signal to this second external unit; And optical fiber, be connected with this first sonet multiplexer and this second sonet multiplexer, in order to this first signal and this secondary signal are transmitted.
This second sonet multiplexer is converted to the wavelength that is different from first signal with the wavelength of this secondary signal, in this optical fiber, to transmit, this first sonet multiplexer is equal to the wavelength of this first signal with the wavelength conversion of this secondary signal of receiving, is resent to this first external unit.
This first sonet multiplexer comprises one first wave filter, one second wave filter, one first connects a little and first wavelength shifter, this first wave filter and this first external unit and this first connects and is connected, this first connects a little and is connected with this first wave filter and this second wave filter, this first wavelength shifter is connected with this second wave filter and this first external unit, this second sonet multiplexer comprises one the 3rd wave filter, one the 4th wave filter, one second connects a little and one second wavelength shifter, the 3rd wave filter and second external unit and second connect and are connected, this second connects a little and is connected with the 3rd wave filter and the 4th wave filter, this second wavelength shifter is connected with the 4th wave filter and this second external unit, and this first connects a little with second and connect a little and interconnect with this optical fiber.
This first signal that this first external unit produces has one first wavelength, this first signal that this first wave filter allows to have this first wavelength is sent to first and connects a little, second connect a little to this through this Optical Fiber Transmission, be sent to this second external unit through the 3rd wave filter again; Second external unit produces has this secondary signal of this first wavelength, through this second wavelength shifter, this first wavelength is converted to one second wavelength, being sent to this through the 4th wave filter second connects a little, this moment, the 3rd wave filter stopped that this secondary signal with this second wavelength passes through, and via this Optical Fiber Transmission to this first connect a little after, this first wave filter stops that this secondary signal with this second wavelength passes through, and this secondary signal that this second wave filter allows to have this second wavelength is passed through, then this first wavelength shifter is converted to this first wavelength with this second wavelength of this secondary signal, and this secondary signal that will have this first wavelength again is sent to this first external unit.
Actual this first wavelength and this second wavelength of using is wherein different both of 780nm, 830nm, 850nm, 1310nm, 1490nm, 1550nm and 1610nm, by using single optical fiber, carry out the signal transmission with different wavelength, be received as same path owing to transmit, and significantly reduced because the time delay that the path difference causes, also often carry out the correction of time bias when not required, reduce material cost and human cost significantly.
Description of drawings
Fig. 1 is the synoptic diagram of prior art fiber-optic signal transfer system;
Fig. 2 is the synoptic diagram of single fiber multiplexer system first embodiment of the present invention;
Fig. 3 is the cell schematics of sonet multiplexer in the single fiber multiplexer system of the present invention;
Fig. 4 is the synoptic diagram of single fiber multiplexer system first embodiment of the present invention.
Wherein, description of reference numerals is as follows:
11 first connect end;
13 second connect end;
21 first optical fiber;
23 second optical fiber;
25 optical fiber;
31 first packet transfer devices;
33 second packet transfer devices;
35 first external units;
37 second external units;
41 first sonet multiplexers;
43 second sonet multiplexers;
51 first wave filters;
53 second wave filters;
55 the 3rd wave filters;
57 the 4th wave filters;
61 first connect a little;
63 first wavelength shifters;
65 second connect a little;
67 second wavelength shifters;
71 first switches;
73 second switches;
λ 1 first wavelength;
λ 2 second wavelength.
Embodiment
Those skilled in the art below cooperate graphic and component symbol is done more detailed description to embodiments of the present invention, so that can implement after studying this instructions carefully according to this.
Consult Fig. 2, the synoptic diagram of single fiber multiplexer system first embodiment of the present invention.As shown in Figure 2, single fiber multiplexer system of the present invention comprises optical fiber 25, first external unit 35, second external unit 37, first sonet multiplexer 41 and second sonet multiplexer 43.First external unit 35 is connected with first sonet multiplexer 41, in order to producing one first signal, and is sent by first sonet multiplexer 41, or handles a secondary signal that is received by first sonet multiplexer 41.In the same manner, second external unit 37 is connected with second sonet multiplexer 43, in order to producing this secondary signal, and is sent by second sonet multiplexer 43, or handles first signal that is received by first sonet multiplexer 43.First sonet multiplexer 41 is connected with optical fiber 25 with second sonet multiplexer 43, wherein the signal that sends of first external unit 35, second external unit 37 all is as transmission with optical fiber 25, but use similar but different wavelength, be to transmit with λ 1 by first external unit 35 for example, and the signal that second external unit 37 sends is to transmit with λ 1.Be proportional to according to time delay
Principle, under same length, wavelength is if approach, the influence of time delay is obviously dwindled.
Consult Fig. 3, the cell schematics of sonet multiplexer in the single fiber multiplexer system of the present invention.As shown in Figure 3, first sonet multiplexer 41 comprises first wave filter 51, second wave filter 53, first connects a little 61 and first wavelength shifter 63, first wave filter 51 and first external unit 35 and first connect a little 61 and are connected, first connects a little 61 is connected with first wave filter 51 and second wave filter 53, and first wavelength shifter 63 is connected with second wave filter 53 and first external unit 35.In the same manner, second sonet multiplexer 43 comprises the 3rd wave filter 55, the 4th wave filter 57, second connects a little 65 and second wavelength shifter 67, the 3rd wave filter 55 and second external unit 37 and second connect a little 65 and are connected, second connects a little 65 is connected with the 3rd wave filter 55 and the 4th wave filter 57, and second wavelength shifter 67 is connected with the 4th wave filter 57 and second external unit 37.First connects a little 61 and second connects a little 65 and interconnects with optical fiber 25.
First signal that first external unit 35 produces has first wavelength X 1, first signal that first wave filter 51 allows to have first wavelength X 1 is sent to first and connects a little 61, transfer to second through optical fiber 25 and connect a little 65, be sent to second external unit 37 through the 3rd wave filter 55 again.Second external unit 37 produces the secondary signal with first wavelength X 1, through second wavelength shifter 67, first wavelength is converted to second wavelength X 2 from λ 1, be sent to second through the 4th wave filter 57 and connect a little 65, this moment, the 3rd wave filter 55 stopped that the secondary signal with second wavelength X 2 passes through.And via optical fiber 25 transfer to first connect a little 61 after, first wave filter 51 stops that the secondary signal with second wavelength X 2 passes through, and the secondary signal that second wave filter 53 allows to have second wavelength X 2 is passed through, then first wavelength shifter 63 is converted to first wavelength X 1 with second wavelength of secondary signal from λ 2, and the secondary signal that will have first wavelength X 1 again is sent to first external unit 35.
Consult Fig. 4, the synoptic diagram of single fiber multiplexer system second embodiment of the present invention.As shown in Figure 4, further, can be under the framework of the two optical fiber of prior art, first sonet multiplexer 41 between first external unit 35 and second external unit 37 among two group of first embodiment of installing, second sonet multiplexer 43 and optical fiber 25, between first external unit 35 and two first sonet multiplexers 41 one first switch 71 is set, and between second external unit 37 and two second sonet multiplexers 43 second switch 71 is set, first external unit 35 and second external unit 37 send control signal and determine first switch 71 and second switch 73, transmit signal to switch in wherein in one group of transmission path, this mode can connect many group transmission paths, also can in single-pathway, arrange, with the usefulness as standby transmission path.
The present invention only represents with two groups of sonet multiplexers, only in order to example, in fact can use to more groups optical fiber.On reality was used, first wavelength X 1 and second wavelength X 2 can be wherein different both of 780nm, 830nm, 850nm, 1310nm, 1490nm, 1550nm and 1610nm.
Characteristics of the present invention are only to use single optical fiber, transmit with different wavelength, be received as same path owing to transmit, and significantly reduced because the time delay that the path difference causes, also often carry out the correction of time bias when not required, reduce material cost and human cost significantly.
The above person only is in order to explain preferred embodiment of the present invention; be not that attempt is done any pro forma restriction to the present invention according to this; be with, all have in that identical invention spirit is following do relevant any modification of the present invention or change, all must be included in the category of claim protection of the present invention.
Claims (6)
1. single fiber multiplexer system comprises:
One first external unit is in order to produce one first signal;
One second external unit is in order to produce a secondary signal;
One first sonet multiplexer is connected with this first external unit, in order to send this first signal and to receive this secondary signal to this first external unit;
One second sonet multiplexer is connected with this second external unit, in order to send this secondary signal and to receive this first signal to this second external unit; And
One optical fiber is connected with this first sonet multiplexer and this second sonet multiplexer, in order to this first signal and this secondary signal are transmitted,
Wherein this second sonet multiplexer is converted to the wavelength that is different from first signal with the wavelength of this secondary signal, in this optical fiber, to transmit, this first sonet multiplexer is equal to the wavelength of this first signal with the wavelength conversion of this secondary signal of receiving, is resent to this first external unit.
2. single fiber multiplexer system as claimed in claim 1, wherein
This first sonet multiplexer comprises one first wave filter, one second wave filter, one first connects a little and one first wavelength shifter, this first wave filter and this first external unit and this first connects and is connected, this first connects a little and is connected with this first wave filter and this second wave filter, and this first wavelength shifter is connected with this second wave filter and this first external unit;
This second sonet multiplexer comprises one the 3rd wave filter, one the 4th wave filter, one second connects a little and one second wavelength shifter, the 3rd wave filter and second external unit and second connect and are connected, this second connects a little and is connected with the 3rd wave filter and the 4th wave filter, this second wavelength shifter is connected with the 4th wave filter and this second external unit, and this first connects a little with second and connect and a little interconnect with this optical fiber;
This first signal that this first external unit produces has one first wavelength, this first signal that this first wave filter allows to have this first wavelength is sent to first and connects a little, second connect a little to this through this Optical Fiber Transmission, be sent to this second external unit through the 3rd wave filter again;
Second external unit produces has this secondary signal of this first wavelength, through this second wavelength shifter, this first wavelength is converted to one second wavelength, being sent to this through the 4th wave filter second connects a little, this moment, the 3rd wave filter stopped that this secondary signal with this second wavelength passes through, and via this Optical Fiber Transmission to this first connect a little after, this first wave filter stops that this secondary signal with this second wavelength passes through, and this secondary signal that this second wave filter allows to have this second wavelength is passed through, then this first wavelength shifter is converted to this first wavelength with this second wavelength of this secondary signal, and this secondary signal that will have this first wavelength again is sent to this first external unit.
3. single fiber multiplexer system as claimed in claim 2, wherein this first wavelength and this second wavelength are wherein different both of 780nm, 830nm, 850nm, 1310nm, 1490nm, 1550nm and 1610nm.
4. single fiber multiplexer system comprises:
One first external unit is in order to produce one first signal;
One second external unit is in order to produce a secondary signal;
At least one transmission path, respectively this transmission path comprises one first sonet multiplexer, one second sonet multiplexer and an optical fiber, this first sonet multiplexer is connected with this first external unit, in order to send this first signal and to receive this secondary signal to this first external unit, this second sonet multiplexer is connected with this second external unit, in order to send this secondary signal and to receive this first signal to this second external unit, this optical fiber is connected this first sonet multiplexer with this second sonet multiplexer, in order to this first signal and this secondary signal are transmitted;
One first switch, with this first external unit and respectively this first sonet multiplexer in this transmission path be connected; And
One second switch, with this second external unit and respectively this second sonet multiplexer in this transmission path be connected;
Wherein the control of this first external unit and this second external unit produces a control signal to control this first switch and a second switch, in this at least one transmission path, to determine a transmission path to carry out the transmission of this first signal and this secondary signal, this second sonet multiplexer is converted to the wavelength that is different from first signal with the wavelength of this secondary signal, in this optical fiber, to transmit, this first sonet multiplexer is equal to the wavelength of this first signal with the wavelength conversion of this secondary signal of receiving, is resent to this first external unit.
5. single fiber multiplexer system as claimed in claim 4, wherein
This first sonet multiplexer comprises one first wave filter, one second wave filter, one first connects a little and first wavelength shifter, this first wave filter is connected with this first external unit by this first switch, and first connect and be connected with this, this first connects a little and is connected with this first wave filter and this second wave filter, this first wavelength shifter is connected with this second wave filter, and is connected with this first external unit by this first switch;
This second sonet multiplexer comprises one the 3rd wave filter, one the 4th wave filter, one second connects a little and one second wavelength shifter, the 3rd wave filter is connected with second external unit by this second switch, and second connect and be connected with this, this second connects a little and is connected with the 3rd wave filter and the 4th wave filter, this second wavelength shifter is connected with the 4th wave filter, and be connected with this second external unit by this second switch, and this first connects a little and second connects and a little interconnect with this optical fiber;
This first signal that this first external unit produces has one first wavelength, this first signal that this first wave filter allows to have this first wavelength is sent to first and connects a little, second connect a little to this through this Optical Fiber Transmission, transmit through this second switch to this second external unit through the 3rd wave filter again;
Second external unit produces has this secondary signal of this first wavelength, through this second wavelength shifter, be one second wavelength with this first wavelength, being sent to this through the 4th wave filter second connects a little, this moment, the 3rd wave filter stopped that this secondary signal with this second wavelength passes through, and via this Optical Fiber Transmission to this first connect a little after, this first wave filter stops that this secondary signal with this second wavelength passes through, and this secondary signal that this second wave filter allows to have this second wavelength is passed through, then this first wavelength shifter is converted to this first wavelength with this second wavelength of this secondary signal, and this secondary signal that will have this first wavelength again is sent to this first external unit through this first switch.
6. single fiber multiplexer system as claimed in claim 4, wherein this first wavelength and this second wavelength are wherein different both of 780nm, 830nm, 850nm, 1310nm, 1490nm, 1550nm and 1610nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100249373A CN103207432A (en) | 2012-01-17 | 2012-01-17 | Single fiber multiplexer system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100249373A CN103207432A (en) | 2012-01-17 | 2012-01-17 | Single fiber multiplexer system |
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| CN103207432A true CN103207432A (en) | 2013-07-17 |
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| CN2012100249373A Pending CN103207432A (en) | 2012-01-17 | 2012-01-17 | Single fiber multiplexer system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262641A (en) * | 2018-11-30 | 2020-06-09 | 中国移动通信集团浙江有限公司 | PTN network architecture and clock synchronization method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1426180A (en) * | 2002-12-12 | 2003-06-25 | 武汉光迅科技有限责任公司 | Light wave length/mode converter |
| CN1852060A (en) * | 2006-05-24 | 2006-10-25 | 桐乡市莱特利光电科技有限公司 | Multi-way optical-wavelength conversion duplexer |
| US20100316373A1 (en) * | 2009-06-12 | 2010-12-16 | Chu-Lin Chang | Bidirectional multi-wavelength optical signal routing and amplification module |
-
2012
- 2012-01-17 CN CN2012100249373A patent/CN103207432A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1426180A (en) * | 2002-12-12 | 2003-06-25 | 武汉光迅科技有限责任公司 | Light wave length/mode converter |
| CN1852060A (en) * | 2006-05-24 | 2006-10-25 | 桐乡市莱特利光电科技有限公司 | Multi-way optical-wavelength conversion duplexer |
| US20100316373A1 (en) * | 2009-06-12 | 2010-12-16 | Chu-Lin Chang | Bidirectional multi-wavelength optical signal routing and amplification module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262641A (en) * | 2018-11-30 | 2020-06-09 | 中国移动通信集团浙江有限公司 | PTN network architecture and clock synchronization method |
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Application publication date: 20130717 |