CN105871455B - The EDFA devices of band OSC amplifications for optical link protecting system - Google Patents
The EDFA devices of band OSC amplifications for optical link protecting system Download PDFInfo
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- CN105871455B CN105871455B CN201610373546.0A CN201610373546A CN105871455B CN 105871455 B CN105871455 B CN 105871455B CN 201610373546 A CN201610373546 A CN 201610373546A CN 105871455 B CN105871455 B CN 105871455B
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- osc signal
- optical repeater
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- 230000003287 optical effect Effects 0.000 title claims abstract description 71
- 230000003321 amplification Effects 0.000 title claims abstract description 32
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 32
- 230000005622 photoelectricity Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 101100462143 Nicotiana tabacum OLPA gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0773—Network aspects, e.g. central monitoring of transmission parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/038—Arrangements for fault recovery using bypasses
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0775—Performance monitoring and measurement of transmission parameters
Abstract
The present invention is provided to the EDFA devices of the band OSC amplifications of optical link protecting system, including light amplification module；Partial wave unit is used to input signal being divided into osc signal and service signal；Service signal carries out signal amplification by light amplification module；Optical splitter is used to the osc signal separated being divided into 2 tunnels；Luminous power detection unit is connect with 1 tunnel of optical splitter output osc signal, and the wavelength for detecting osc signal is 1490nm or 1510nm；First optical repeater is used for the osc signal of a length of 1490nm of junction waves；Second optical repeater is used for the osc signal of a length of 1510nm of junction waves；Control unit is used for the testing result according to luminous power detection unit, and one in the first optical repeater of selection or the second optical repeater, photoelectricity relaying is carried out to the another 1 tunnel output osc signal of optical splitter；Osc signal after service signal and the photoelectricity relaying that wave combining unit is used to amplify signal, is optically coupled output.The present invention will cannot can be solved by the EDFA osc signals amplified automatically, signal relaying, multiplex exports, continues to transmit again.
Description
Technical field
The present invention relates to optical line protection technical fields, more particularly to a kind of band OSC for optical link protecting system
The EDFA devices of amplification.
Background technology
With the gradually application of dense wavelength division multiplexing system, OLP（Fibre circuit automatically switches protection）System has become
Safeguard the important tool of wavelength-division system safety.But OLP systems still have some hidden danger, especially in multiple cascade OLP
In system, downstream is accidentally switched caused by how preventing upstream from switching, and needs to introduce new protection judgment mechanism.Most common improvement
Method is that integrated service luminous power and osc light power monitoring are judged as this line fault when the two is less than threshold value simultaneously.
Since osc signal luminous power does not change with business light, it can ensure the reliability that this section of circuit switching judges.
Osc signal is introduced into OLP protection sections, osc signal wavelength is combined in transmission line（1490nm or 1510nm）
And service wavelength（1550nm）, and osc signal wavelength is not in EDFA amplification wave bands.Before then this synthesis optical signal enters EDFA,
It needs first to solve osc signal, carries out photoelectricity relay process, carry out multiplex again after standby service optical signal amplification, continue to transmit.It passes
The EDFA equipment of system does not handle the ability of osc signal, then must additionally increase multiplex partial wave and osc signal processing in the line
Equipment increases line project difficulty.
Chinese patent application CN104134924A proposes a kind of EDFA structures, including amplification light path and pump light source, belongs to
In traditional EDFA structure updating, osc signal processing is not considered.Chinese patent application CN103904550A proposes one kind and carries
RFA the and EDFA Hybrid amplifier devices of Gain Automatic control, including EDFA modules, RFA modules and OSC power monitoring units
Deng.The invention only considered the osc signal of Single wavelength, not handle the osc signal of two kinds of different wave lengths.
Therefore, it should protect the EDFA in section to be redesigned for the OLP for being introduced into osc signal, be internally integrated to two
The demultiplexing function of kind wavelength osc signal, keeps number of devices constant, simplifies Transmission system.For this demand, existing market
On be still blank.
Invention content
The technical problem to be solved by the present invention is to：A kind of EDFA of the band OSC amplifications for optical link protecting system is provided
Device will cannot can be solved automatically by the EDFA osc signals amplified, carry out signal relaying, then multiplex output, continue to transmit.
The technical solution taken by the invention to solve the above technical problem is：A kind of band for optical link protecting system
The EDFA devices of OSC amplifications, including light amplification module, it is characterised in that：It further includes：
Partial wave unit, for input signal to be divided into osc signal and service signal；Service signal is carried out by light amplification module
Signal amplifies；
Optical splitter, for the osc signal separated to be divided into 2 tunnels；
Luminous power detection unit is connect with 1 tunnel of optical splitter output osc signal, and the wavelength for detecting osc signal is
1490nm or 1510nm；
First optical repeater is used for the osc signal of a length of 1490nm of junction waves；
Second optical repeater is used for the osc signal of a length of 1510nm of junction waves；
Control unit is selected for the testing result according to luminous power detection unit in the first optical repeater or the second light
After one in device, photoelectricity relaying is carried out to the another 1 tunnel output osc signal of optical splitter；
Wave combining unit, the osc signal after service signal and photoelectricity relaying for amplifying signal, is optically coupled defeated
Go out.
By said program, it further includes being switched and the second selecting switch by the first choice that control unit controls；Wherein
The another 1 tunnel output osc signal connection of the input terminal and optical splitter of one selecting switch, 2 output ends difference of first choice switch
It is connect with the first optical repeater and the second optical repeater；2 input terminals of the second selecting switch respectively with the first optical repeater and
Second optical repeater connects, and the output end of the second selecting switch and the input terminal of wave combining unit connect.
By said program, the splitting ratio of the optical splitter is 95%, wherein 5% osc signal is sent into luminous power detection list
Member, 95% osc signal carry out photoelectricity relaying.
Beneficial effects of the present invention are：The present invention is by increasing control unit and 2 optical repeaters, except the industry for completing routine
Signal amplification of being engaged in is outer, will cannot can be solved automatically by the EDFA osc signals amplified, signal relaying, again multiplex output, after resuming
It is defeated, redundant equipment laying is reduced, avoids osc signal from being lost after conventional EDFA amplifiers, makes dwdm system transmission performance not
It is influenced by the optical link synchronism switching protection system of comprehensive osc signal.
Description of the drawings
Fig. 1 is the application schematic diagram of one embodiment of the invention.
Fig. 2 is the structural schematic diagram of one embodiment of the invention.
In figure：First present apparatus of Q1-, second present apparatus of Q2-, 1- partial wave units, 2- wave combining units, 3- first choices are opened
It closes, the second selecting switch of 4-, the first optical repeaters of 5-, the second optical repeaters of 6-, 7- control units, 8- optical splitters, 9- luminous powers
Detection unit, 10- light amplification modules.
Specific implementation mode
With reference to specific example and attached drawing, the present invention is further described.
The present invention provides a kind of EDFA devices of the band OSC amplifications for optical link protecting system, as shown in Fig. 2, including
Light amplification module 10 further includes：Partial wave unit 1, for input signal to be divided into osc signal and service signal；Service signal by
Light amplification module 10 carries out signal amplification；Optical splitter 8, for the osc signal separated to be divided into 2 tunnels；Luminous power detection is single
Member 9 is connect with 1 tunnel of optical splitter 8 output osc signal, and the wavelength for detecting osc signal is 1490nm or 1510nm；First
Optical repeater 5 is used for the osc signal of a length of 1490nm of junction waves；Second optical repeater 6, for a length of 1510nm's of junction waves
Osc signal；Control unit 7 selects the first optical repeater 5 or the second light for the testing result according to luminous power detection unit 9
One in repeater 6, photoelectricity relaying is carried out to the another 1 tunnel output osc signal of optical splitter 8；Wave combining unit 2 is used for signal
Osc signal after service signal and the photoelectricity relaying of amplification, is optically coupled output.
Wherein, light amplification module 10 can be conventional existing EDFA light amplification module or other can realize
The module of light amplification is carried out to service signal.
It further refines, it further includes the first choice switch 3 controlled by control unit 7 and the second selecting switch 4；Its
The input terminal of middle first choice switch 3 is connect with another 1 tunnel of optical splitter 8 output osc signal, 2 outputs of first choice switch 3
End is connect with the first optical repeater 5 and the second optical repeater 6 respectively；2 input terminals of the second selecting switch 4 respectively with the first light
Repeater 5 and the connection of the second optical repeater 6, the output end of the second selecting switch 4 are connect with the input terminal of wave combining unit 2.
Specifically, since luminous power detection unit 9 only needs seldom light that can be detected, and most light needs
It is relayed for photoelectricity, therefore, in the present embodiment, the splitting ratio of the optical splitter is 95%, wherein 5% osc signal is sent into
Luminous power detection unit 9,95% osc signal carry out photoelectricity relaying.
The course of work of the present embodiment is：The business letter that it is 1550nm for wavelength that the signal of input divides by partial wave unit 1
Number and unknown wavelength osc signal, by the amplification of 10 signal of light amplification module, the osc signal of unknown wavelength divided service signal
Light device 8 divides for 2 tunnels, wherein 5% osc signal is sent into luminous power detection unit 9, luminous power detection unit 9 sends testing result
To control unit 7.If result is 1490nm, control unit 7 sends out signal, and control first choice switch 3 and the second selection are opened
The osc signal that 4 the first optical repeaters 5 of selection are closed to 95% carries out photoelectricity relaying；If result is 1510nm, control unit 7 is sent out
Signal, controls first choice switch 3 and the second selecting switch 4 selects the second optical repeater 6 to carry out photoelectricity to 95% osc signal
Relaying.Osc signal after photoelectricity relaying carries out photoelectric coupling together with amplified service signal, by wave combining unit 2, and multiplex is defeated
Go out.
Fig. 1 is the application schematic diagram of one embodiment of the invention, and between OLP1 and OLP2, the first present apparatus Q1 and the is arranged
Two present apparatus Q2 constitute a kind of optical link synchronism switching protection system of comprehensive osc signal, since the optical link protecting system needs
The signal transmission state of active and standby light-path is monitored in real time, if any light-path breaks down or upstream input optical power generates
When variation, while detecting the business light signal strength being currently received and osc signal intensity.Since osc signal intensity is not with this
Section business optical power change, if the two simultaneously less than threshold value, judge line fault, send out alarm signal, in cooperation
Optical transmitting set, built-in optical receiver are set, the light switching switch being connect with the access is controlled, makes two light switching switch synchronism switchings
Onto spare light-path.Therefore, the present apparatus can avoid osc signal from being lost after conventional EDFA amplifiers, ensure that synthesis
The work of the optical link protecting system of osc signal judges, keeps dwdm system transmission performance not same by the optical link of comprehensive osc signal
Walk the influence of switch protecting system.
Above example is merely to illustrate the design philosophy and feature of the present invention, and its object is to make technology in the art
Personnel can understand the content of the present invention and implement it accordingly, and protection scope of the present invention is not limited to the above embodiments.So it is all according to
According to equivalent variations or modification made by disclosed principle, mentality of designing, within protection scope of the present invention.
Claims (3)
1. a kind of EDFA devices of band OSC amplifications for optical link protecting system, including light amplification module, it is characterised in that：
It further includes：
Partial wave unit, for input signal to be divided into osc signal and service signal；Service signal carries out signal by light amplification module
Amplification；
Optical splitter, for the osc signal separated to be divided into 2 tunnels；
Luminous power detection unit is connect with 1 tunnel of optical splitter output osc signal, and the wavelength for detecting osc signal is 1490nm
Or 1510nm；
First optical repeater is used for the osc signal of a length of 1490nm of junction waves；
Second optical repeater is used for the osc signal of a length of 1510nm of junction waves；
Control unit selects the first optical repeater or the second optical repeater for the testing result according to luminous power detection unit
In one, photoelectricity relaying is carried out to another 1 tunnel of optical splitter output osc signal；
Wave combining unit, the osc signal after service signal and photoelectricity relaying for amplifying signal, is optically coupled output.
2. the EDFA devices of the band OSC amplifications according to claim 1 for optical link protecting system, it is characterised in that：
It further includes being switched and the second selecting switch by the first choice that control unit controls；Wherein first choice switch input terminal with
Optical splitter another 1 tunnel output osc signal connection, first choice switch 2 output ends respectively with the first optical repeater and second
Optical repeater connects；2 input terminals of the second selecting switch are connect with the first optical repeater and the second optical repeater respectively, and second
The output end of selecting switch and the input terminal of wave combining unit connect.
3. the EDFA devices of the band OSC amplifications according to claim 1 for optical link protecting system, it is characterised in that：
The splitting ratio of the optical splitter is 95%, wherein 5% osc signal is sent into luminous power detection unit, 95% osc signal carries out
Photoelectricity relays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373546.0A CN105871455B (en) | 2016-05-31 | 2016-05-31 | The EDFA devices of band OSC amplifications for optical link protecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373546.0A CN105871455B (en) | 2016-05-31 | 2016-05-31 | The EDFA devices of band OSC amplifications for optical link protecting system |
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| CN105871455A CN105871455A (en) | 2016-08-17 |
| CN105871455B true CN105871455B (en) | 2018-08-28 |
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| CN201610373546.0A Active CN105871455B (en) | 2016-05-31 | 2016-05-31 | The EDFA devices of band OSC amplifications for optical link protecting system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106303768B (en) | 2016-08-31 | 2019-10-18 | 武汉光迅科技股份有限公司 | The photosynthetic wave separater module for having automatic discovery feature |
| CN110995336B (en) * | 2019-11-15 | 2021-05-11 | 武汉光迅信息技术有限公司 | OLP transmission link switching method and device, storage medium and OLP |
| CN113541795B (en) * | 2020-04-17 | 2022-04-15 | 烽火通信科技股份有限公司 | Single-fiber bidirectional implementation method and equipment for OSC channel of wavelength division system |
| CN112217568B (en) * | 2020-09-18 | 2022-03-08 | 武汉光迅科技股份有限公司 | Optical signal processing device and communication system |
| CN114374429B (en) * | 2021-12-08 | 2023-07-04 | 武汉光迅科技股份有限公司 | C++ band EDFA device with single-fiber bidirectional OSC |
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| CN1272923C (en) * | 2004-10-25 | 2006-08-30 | 烽火通信科技股份有限公司 | Light relay station device for light transmission, system and its automatic fain regulating method |
| US8886032B2 (en) * | 2010-11-29 | 2014-11-11 | Mitsubishi Electric Corporation | Wavelength multiplexing optical transmission system, transmitter, and receiver |
| CN103904550B (en) * | 2012-12-25 | 2017-04-26 | 昂纳信息技术（深圳）有限公司 | RFA and EDFA hybrid light amplifier with gain automatic control apparatus, and control method thereof |
| CN203933633U (en) * | 2014-06-30 | 2014-11-05 | 武汉光迅科技股份有限公司 | A kind of portable light fiber communication wavelength-division multiplex system emergency first-aid repair equipment |
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