CN106452568A - OSC (Optical Supervising Channel) optical module with OTDR (Optical Time Domain Reflectometer)) function and method for realizing real-time and interruption service detection thereof - Google Patents
OSC (Optical Supervising Channel) optical module with OTDR (Optical Time Domain Reflectometer)) function and method for realizing real-time and interruption service detection thereof Download PDFInfo
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- CN106452568A CN106452568A CN201610958259.6A CN201610958259A CN106452568A CN 106452568 A CN106452568 A CN 106452568A CN 201610958259 A CN201610958259 A CN 201610958259A CN 106452568 A CN106452568 A CN 106452568A
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- 238000001514 detection method Methods 0.000 title claims abstract description 62
- 230000003287 optical effect Effects 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 26
- 238000011897 real-time detection Methods 0.000 claims abstract description 10
- 238000000253 optical time-domain reflectometry Methods 0.000 claims description 75
- 239000013307 optical fiber Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 241000219739 Lens Species 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
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- 230000003321 amplification Effects 0.000 claims description 3
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- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
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- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 241001282153 Scopelogadus mizolepis Species 0.000 description 1
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- 230000005622 photoelectricity 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
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
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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
- H04B10/0771—Fault location on the transmission path
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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
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
-
- 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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/691—Arrangements for optimizing the photodetector in the receiver
- H04B10/6911—Photodiode bias control, e.g. for compensating temperature variations
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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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/693—Arrangements for optimizing the preamplifier in the receiver
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention relates to the technical field of optical communication and specifically discloses an OSC (Optical Supervising Channel) optical module with an OTDR (Optical Time Domain Reflectometer)) function and a method for realizing real-time and interruption service detection thereof. The OSC module comprises an OSC receiving end, a BOSA (Bi-Directional Optical Sub-Assembly) as a module sending end, and a laser driver, an OTDR control circuit and a breakpoint detection module which are electrically connected with the BOSA. An optical transmitting laser and an OTDR receiving end are integrated in the BOSA. One end of the OTDR control circuit is electrically connected with a power-off detection module, and the laser driver and the other end of the OTDR control circuit are electrically connected with an MCU. The MCU is in communication connection with an OSC system device through a communication bus. According to the module and the method, two functions of real-time service detection and interruption service detection are integrated and can be switched randomly; real-time detection and positioning can be realized without modifying the OSC system device; a technician does not need to go to the site, the labor cost and time can be greatly reduced, and the module and the method are applicable to industrial large-scale popularization.
Description
Technical field
The present invention relates to technical field of photo communication, more particularly, to one kind have optical time domain reflectometer (OTDR：Optical
Time Domain Reflectometer) Optical Supervisory Channel (OSC：Optical Supervising Channel) optical mode
Block, and the method in fact showing real time business and interrupting service detection.
Background technology
Intensive multiplexed optical wave (DWDM：Dense Wavelength Division Multiplexing) technology extensively should
In global core net long distance line and Metropolitan Area Network (MAN) Transmission system, take full advantage of the huge potential bandwidth of optical fiber, meet
People are growing to voice, data and multimedia service demand.In order to be able to timing monitoring network line, discovery fault is simultaneously most
Fast solution, allows network normally to run, the concept of Optical Supervisory Channel is arisen at the historic moment, this channel is exactly OSC.
Fiber-optic transfer the phenomenons such as line fault or device damage unavoidably and causes communication disruption, in order to be accurately positioned appearance
The position of fault or breakpoint is it is necessary to carry out breaking point detection using OTDR.Existing osc light module does not generally carry OTDR work(
Can, it is substantially tested using special OTDR and supporting test device by technical staff, this mode not only test group
Net scheme is complicated, and OTDR equipment price is high with cost of labor, and communication system is repaired very slowly, and the time is long.
Content of the invention
It is an object of the invention to, proposition is a kind of to be had the osc light module of OTDR function and its realizes real-time, interrupting service
The method of detection, it is integrated with real time business detection and interrupting service detects two kinds of functions, achievable real-time detection and positioning.
For achieving the above object, the invention provides a kind of osc light module with OTDR function, it includes：By logical
The osc light module that letter bus is communicated to connect with OSC system equipment, this osc light module includes OSC receiving terminal, as module transmitting
The BOSA at end, the laser driver being electrically connected with BOSA respectively, OTDR control circuit and breaking point detection module；In described BOSA
It is integrated with light emitting laser and OTDR receiving terminal；Described OTDR control circuit one end is electrically connected with an outage detection module,
Laser driver and OTDR control circuit one end are also all electrically connected with a MCU, and this MCU is set with OSC system by communication bus
Standby communication connection.
Specifically, described osc light module can be communicated to connect with OSC system equipment by IIC communication bus.
In the present invention, described OSC receiving terminal includes receiving unit and the limited range enlargement being electrically connected with this receiving unit
Device, this receiving unit one end is provided with optical interface, and limiting amplifier one end is provided with electrical interface.
It is provided with photodiode and preamplifier, from the light data of receiving unit optical interface input in described receiving unit
Signal, is converted to the signal of telecommunication by internal photodiode, is input to preamplifier and is amplified, and limiting amplifier receives
Signal after amplifying through preamplifier carries out two grades of amplifications, the electric data signal of output.
LD chip can be included in described BOSA, receive TO device, globe lenss and single-mode fiber；The OSC signal of telecommunication and
The OTDR signal of telecommunication loads input simultaneously and drives LD chip light emitting；Optical signal passes through ball-lens coupling in single-mode fiber, LD chip
Realize electro-optic conversion, receive the optical signal that OTDR receiving terminal collected by TO device, be then converted into the signal of telecommunication, be transported to OTDR control
Circuit.
Specifically, described breaking point detection module can be a pulse control circuit, this pulse control circuit two ends respectively with
OTDR control circuit and BOSA are electrically connected with.
Further, the present invention also provides a kind of above-mentioned osc light module with OTDR function to realize real-time, interrupting service
The method of detection, it includes：OTDR signal is superimposed upon in normal data signal in a modulated manner, thus realizing uninterrupted
The real-time online detection of business；Breaking point detection module carries out sampling to the OTDR signal of telecommunication, calculates, and exports result of calculation, OSC system
Equipment passes through communication bus and osc light module real-time Communication for Power, and the result of calculation according to receiving determines the breakpoint in optical fiber link.
Wherein, the optical signal sending as the BOSA of module transmitting terminal is the folded of normal data signal and OTDR signal
Plus, then OTDR receiving terminal detection OTDR breakpoint function, OSC receiving terminal detects OSC regular traffic.
Specifically, described OSC system equipment passes through IIC communication bus, after providing pulse generation enable signal instruction, OSC
Optical module produces the output of pulse signal for breaking point detection, pulse signal is converted to and couples and be given to OTDR after optical signal and connect
Receiving end, is reconverted into the signal of telecommunication and is input to breaking point detection module；Breaking point detection module carries out sampling to this signal of telecommunication, calculates, defeated
Go out result of calculation；OSC system equipment determines the breakpoint in optical fiber link according to the result of calculation receiving.
Described breaking point detection module is a pulse control circuit, is used for realizing OTDR interruption detection；Work as real-time detection function
Dynamic range not meet distance detect when, it will close real-time detection function, open OTDR interrupt detection.
The present invention has the osc light module of OTDR function and its realizes real-time, interrupting service detection method, and it is integrated
Real time business detection and interrupting service detect two kinds of functions, can arbitrarily switch, need not transform OSC system equipment and can achieve
Real-time detection and positioning, less need technical staff to scene, greatly save cost of labor and time it is adaptable to industrialization is big
Scale is promoted the use of.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, also may be used
So that other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 has the osc light module of OTDR function and the Principle of Communication schematic diagram of OSC system equipment for the present invention；
Fig. 2 has a kind of module connection diagram of specific embodiment of osc light module of OTDR function for the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
As shown in Figure 1, 2, the present invention provides a kind of osc light module with OTDR function, and it includes：By communication bus
The osc light module 20 communicating to connect with OSC system equipment 10, this osc light module 20 includes OSC receiving terminal, as module transmitting
Light transceiver module (the BOSA at end：Bi-Directional Optical Sub-Assembly) 21, respectively with BOSA 21
Laser driver 22, OTDR control circuit 23 and the breaking point detection module being electrically connected with；It is integrated with light transmitting in described BOSA 21
Laser instrument and OTDR receiving terminal (not shown)；Described OTDR control circuit 23 one end is electrically connected with an outage detection module, swashs
CD-ROM driver 22 and OTDR control circuit 23 one end are also all electrically connected with a MCU 24, this MCU 24 pass through communication bus with
OSC system equipment 10 communicates to connect.The osc light module that the present invention has OTDR function is integrated with real time business detection and interrupts industry
Business two kinds of functions of detection, real-time online detection is that OTDR signal is superimposed upon in normal data signal in a modulated manner, from
And realize the real-time online detection of uninterrupted business；Interrupting detection is when finding breakpoints of optical fiber, can interrupting service rapidly, arrangement
Detection function, then opens rapidly business again.Above two function can arbitrarily switch, and it can be realized real-time detection and determine
Position, less needs technical staff to scene, greatlys save cost of labor and time.
As a preferred embodiment of the present invention, described osc light module 20 can pass through IIC communication bus 202 and OSC
System equipment 10 communicates to connect.OSC system equipment 10 realizes the configuration of OTDR by IIC interface, and existing module is completely compatible,
Do not need to redefine pin to realize.
In the present invention, described OSC receiving terminal includes receiving unit 25 and the limit being electrically connected with this receiving unit 25
Width amplifier 26, this receiving unit 25 one end is provided with optical interface 252, and limiting amplifier 26 one end is provided with electrical interface (not shown).
Module interface in the present invention meets SFP MSA and SFF 8472 agreement.Further, it is provided with photoelectricity two in this receiving unit 25
Pole pipe (PD) and preamplifier (not shown).Receiving unit 25 and limiting amplifier 26 complete the receive capabilities of OSC, from connecing
Receive the light data signal of input at assembly 25 optical interface 252, the signal of telecommunication is converted to by the photodiode of inside modules, input
It is amplified to preamplifier, the signal that limiting amplifier 26 receives after amplifying through preamplifier carries out two grades of amplifications, defeated
Go out electric data signal.So, after the optical signal of input osc light module 20 amplifies through above-mentioned opto-electronic conversion and two grades, in module
Electric data output end keeps constant output, will not fluctuate with the size variation of input optical signal.
Specifically, include semiconductor laser (LD in BOSA 21 in the present invention：Leser Diode) chip, receive brilliant
Body pipe profile (TO：Transistor Uutline) device, globe lenss and single-mode fiber (not shown).This BOSA 21 one end
It is provided with optical interface 210, the OSC signal of telecommunication and the OTDR signal of telecommunication load input simultaneously and drive LD chip light emitting；It is saturating that optical signal passes through ball
Mirror is coupled in single-mode fiber.Wherein, LD chip is used for realizing electro-optic conversion, receives the light letter that OTDR receiving terminal collected by TO device
Number, it is then converted into the signal of telecommunication, be transported to OTDR control circuit 23.Globe lenss, as optical component, play optical focus
Effect.Laser driver 22 is used for driving, controls LD.First, OSC system equipment 10 is input to the electric data of osc light module 20
Signal is received by laser driver 22, and modulates in the driving current of LD, drives LD to send swashing with data modulated signal
Light；Electric data sends superposition by OTDR control circuit 23 and is coupled on laser instrument LD, drives LD to send with the modulation of OTDR data
The laser of signal.
Circuit chip scheme in the present invention we adopt integrated master chip MCU scheme, this MCU 24 not only can realize
EEPROM information and the intelligent optical transceiver module demand of monitor in real time, also can meet the customized demand of client it is achieved that spirit simultaneously
The design lived and diversification application.
As a kind of specific embodiment of the present invention, described breaking point detection module can be a pulse control circuit 27, should
Pulse control circuit 27 two ends are electrically connected with OTDR control circuit 23 and BOSA 21 respectively, are used for realizing OTDR interruption detection
Function.
Further, the present invention also provides a kind of above-mentioned osc light module with OTDR function to realize real-time, interrupting service
The method of detection, it includes：OTDR signal is superimposed upon in normal data signal in a modulated manner, thus realizing uninterrupted
The real-time online detection of business.Specifically, the optical signal sending as the BOSA 21 of module transmitting terminal is normal data signal
With the superposition of OTDR signal, then OTDR receiving terminal detection OTDR breakpoint function, OSC receiving terminal detects OSC regular traffic.Both
Real time operation simultaneously.Breaking point detection module carries out sampling to the OTDR signal of telecommunication, calculates, and exports result of calculation, OSC system equipment 10
By communication bus and osc light module 20 real-time Communication for Power, the result of calculation according to receiving determines the breakpoint in optical fiber link.
As a kind of specific embodiment of the present invention, described OSC system equipment 10 passes through IIC communication bus 202, provides arteries and veins
After punching occurs to enable signal instruction, osc light module 20 produces the output of pulse signal for breaking point detection, and pulse signal is changed
For coupling through optical path component after optical signal and being given to OTDR receiving terminal, it is reconverted into the signal of telecommunication and is input to breaking point detection module；Disconnected
Point detection module carries out sampling to this signal of telecommunication, calculates, and exports result of calculation；OSC system equipment 10 is according to the calculating knot receiving
Fruit determines the breakpoint in optical fiber link, and it need not transform the function that OSC system equipment can achieve breaking point detection.
As a preferred embodiment of the present invention, described breaking point detection module can be a pulse control circuit 27, use
Interrupt detection in realizing OTDR.When the dynamic range of real-time detection function not meets distance and detects, it will close in real time
Detection function, opens OTDR and interrupts detection function, this function can detect the rupture of line situation of long-distance optical fiber.Ordinary circumstance
Under, this function is in closed mode.When using this function, real-time online testing circuit needs to be closed.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of osc light module with OTDR function, including the OSC by communication bus and the communication connection of OSC system equipment
Optical module it is characterised in that this osc light module include OSC receiving terminal, the BOSA as module transmitting terminal, respectively with BOSA electricity
Property connect laser driver, OTDR control circuit and breaking point detection module；Be integrated with described BOSA light emitting laser and
OTDR receiving terminal；Described OTDR control circuit one end is electrically connected with an outage detection module, and laser driver and OTDR control
Circuit on one side is also all electrically connected with a MCU, and this MCU is passed through communication bus and communicated to connect with OSC system equipment.
2. there is the osc light module of OTDR function as claimed in claim 1 it is characterised in that described osc light module is passed through
IIC communication bus is communicated to connect with OSC system equipment.
3. there is the osc light module of OTDR function as claimed in claim 1 it is characterised in that described OSC receiving terminal includes
Receiving unit and the limiting amplifier being electrically connected with this receiving unit, this receiving unit one end is provided with optical interface, limited range enlargement
Device one end is provided with electrical interface.
4. there is the osc light module of OTDR function as claimed in claim 3 it is characterised in that being provided with described receiving unit
Photodiode and preamplifier, from the light data signal of receiving unit optical interface input, by internal photodiode
Be converted to the signal of telecommunication, be input to preamplifier and be amplified, limiting amplifier receives the signal after amplifying through preamplifier
Carry out two grades of amplifications, the electric data signal of output.
5. there is the osc light module of OTDR function as claimed in claim 1 it is characterised in that including LD in described BOSA
Chip, reception TO device, globe lenss and single-mode fiber；The OSC signal of telecommunication and the OTDR signal of telecommunication load input simultaneously and drive LD core
Piece lights；Optical signal passes through ball-lens coupling in single-mode fiber, and LD chip realizes electro-optic conversion, receives TO device and collects OTDR
The optical signal of receiving terminal, is then converted into the signal of telecommunication, is transported to OTDR control circuit.
6. there is the osc light module of OTDR function as claimed in claim 1 it is characterised in that described breaking point detection module is
One pulse control circuit, this pulse control circuit two ends is electrically connected with OTDR control circuit and BOSA respectively.
7. the osc light module with OTDR function as described in a kind of any one as claim 1-6 realizes real-time, interrupting service inspection
The method surveyed is it is characterised in that include：OTDR signal is superimposed upon in normal data signal in a modulated manner, thus real
The now real-time online detection of uninterrupted business；Breaking point detection module carries out sampling to the OTDR signal of telecommunication, calculates, and output calculates knot
Really, OSC system equipment passes through communication bus and osc light module real-time Communication for Power, and the result of calculation according to receiving determines optical fiber link
In breakpoint.
8. as claimed in claim 7 realize in real time, the method for interrupting service detection is it is characterised in that as module transmitting terminal
BOSA send optical signal be normal data signal and the superposition of OTDR signal, then OTDR receiving terminal detection OTDR breakpoint
Function, OSC receiving terminal detects OSC regular traffic.
9. as claimed in claim 8 realize in real time, the method for interrupting service detection is it is characterised in that described OSC system equipment
By IIC communication bus, after providing pulse generation enable signal instruction, osc light module produces the pulse letter for breaking point detection
Number output, pulse signal is converted to and after optical signal, couples and be given to OTDR receiving terminal, be reconverted into the signal of telecommunication and be input to breakpoint
Detection module；Breaking point detection module carries out sampling to this signal of telecommunication, calculates, and exports result of calculation；OSC system equipment is according to reception
Result of calculation determine the breakpoint in optical fiber link.
10. as claimed in claim 9 realize in real time, the method for interrupting service detection is it is characterised in that described breaking point detection mould
Block is a pulse control circuit, is used for realizing OTDR interruption detection；When the dynamic range of real-time detection function not meet long away from
From when detecting, it will close real-time detection function, open OTDR and interrupt detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610958259.6A CN106452568A (en) | 2016-11-03 | 2016-11-03 | OSC (Optical Supervising Channel) optical module with OTDR (Optical Time Domain Reflectometer)) function and method for realizing real-time and interruption service detection thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610958259.6A CN106452568A (en) | 2016-11-03 | 2016-11-03 | OSC (Optical Supervising Channel) optical module with OTDR (Optical Time Domain Reflectometer)) function and method for realizing real-time and interruption service detection thereof |
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| CN106452568A true CN106452568A (en) | 2017-02-22 |
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| CN201610958259.6A Pending CN106452568A (en) | 2016-11-03 | 2016-11-03 | OSC (Optical Supervising Channel) optical module with OTDR (Optical Time Domain Reflectometer)) function and method for realizing real-time and interruption service detection thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586787A (en) * | 2018-11-28 | 2019-04-05 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN109756262A (en) * | 2019-02-27 | 2019-05-14 | 武汉光迅科技股份有限公司 | A kind of optical fiber telecommunications line monitoring method, device and computer storage medium |
| CN110855372A (en) * | 2019-10-09 | 2020-02-28 | 广东工业大学 | Sensing and positioning eavesdropping device and method in quantum secret communication system |
| CN114825050A (en) * | 2022-06-29 | 2022-07-29 | 日照市艾锐光电科技有限公司 | Cascade multi-wavelength integrated semiconductor laser and application thereof |
| CN115001572A (en) * | 2022-08-03 | 2022-09-02 | 中兴通讯股份有限公司 | Optical fiber state detection method, optical transceiver module and network element equipment |
| CN115201977A (en) * | 2022-08-09 | 2022-10-18 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN115225152A (en) * | 2022-07-19 | 2022-10-21 | 中兴通讯股份有限公司 | Optical network detection method, optical transceiver module and optical network equipment |
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