CN106301543A - Luminous power test device - Google Patents
Luminous power test device Download PDFInfo
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- CN106301543A CN106301543A CN201510288735.3A CN201510288735A CN106301543A CN 106301543 A CN106301543 A CN 106301543A CN 201510288735 A CN201510288735 A CN 201510288735A CN 106301543 A CN106301543 A CN 106301543A
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- luminous power
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- laser
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 230000008569 process Effects 0.000 claims abstract description 26
- 239000013307 optical fiber Substances 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 230000003321 amplification Effects 0.000 claims description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000931526 Acer campestre Species 0.000 description 1
- 241001062009 Indigofera Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
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Abstract
The invention discloses a kind of luminous power test device, process circuit and some photodetectors including fused biconical taper optical branching device, control, fused biconical taper optical branching device includes input and some outfans, and each outfan correspondence connects a photodetector.Laser is assigned to each photodetector by coupling and produces corresponding photoelectric current by fused biconical taper optical branching device, control processes circuit and calculates corresponding luminous power pre-stored the first parameter and the second parameter by photoelectric current, control processes circuit by comparing the ratio between the luminous power of each outfan measured and the first parameter identifies the wavelength of different laser, then is measured the luminous power of input by the luminous power of any one outfan and the second parameter.Described luminous power test device uses pre-stored, compares and calculate the mode combined, and can realize automatically identifying the laser of different wave length, and can the most accurately measure the power level of optical fiber inner laser.
Description
Technical field
The present invention relates to a kind of luminous power test device.
Background technology
PON (Passive Optical Network, EPON) technology is a kind of point-to-multipoint light
Fine access technology.Advantage critically important in PON system is that simple optical fiber can transmit the letter of different wave length
Number, so can more effectively utilize fiber optic network.But the laser of different wave length is under same system
Decay and loss are different, so, in the construction of PON system, need to test fibre circuit
Active loss to different wave length laser.The detector used due to light power meter is for all of data
The laser of the different wave length used in transmission all can produce corresponding photoelectric current, so light merit cannot be passed through
The size of rate is distinguished and judges.
Generally for the fibre loss of test different wave length, having two kinds of methods, one is to pass through communication tool
The tester at coordination optical fiber two ends, switched laser wavelength and the test wavelength of corresponding light power meter simultaneously,
To reach the test purpose being lost accordingly, but in actual PON system, optical fiber two ends may
At a distance of dozens of kilometres, and test two ends and be required for tester, therefore adopt and compare expense in such a way
Time；Another kind is to load corresponding modulating wave by the light source in optical fiber one end, passes through at the optical fiber other end
Identify that modulating wave identifies different wavelength, to reach the test purpose being lost accordingly, but use so
Mode determine light source and light power meter and must can be only achieved the effect of convenient identification in the buying of same producer
Really.Accordingly, it is capable to really identify the light power meter of optical maser wavelength, the construction of fibre circuit can be greatly facilitated
And test.
Summary of the invention
The technical problem to be solved in the present invention is to be inconvenient in prior art identify different wave length to overcome
Laser, cause the defect that cannot accurately measure its luminous power, it is provided that a kind of luminous power test device.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of luminous power test device, described luminous power test device include a fused biconical taper optical branching device,
One control processes circuit and some photodetectors, described fused biconical taper optical branching device include an input and
Some outfans, each described outfan correspondence connects a described photodetector.
Described input is for by Laser Transmission to described fused biconical taper optical branching device, described fused biconical taper light
Laser is assigned to each described outfan by coupling by shunt, and the laser assigned to is divided by described outfan
Supplementary biography is passed to the described photodetector of correspondence, and described photodetector produces corresponding photoelectric current, described
Control processes circuit for being calculated the luminous power of correspondence by described light-spot galvanometer.
Described control processes circuit and is used for pre-stored the first parameter and the second parameter, and described first parameter is phase
With the laser of each different wave length under luminous power at ratio between the luminous power of outfan each described,
Described second parameter is luminous power and each institute of the described input of the laser of each different wave length described
State the ratio of the luminous power of outfan.
Described control processes circuit for by comparing the luminous power measuring each the described outfan arrived
Between ratio identify the wavelength of different laser from described first parameter, described control processes circuit also
For measuring described input by the luminous power of any one of outfan and described second parameter
Luminous power.
It is preferred that described fused biconical taper optical branching device includes 2 outfans.
It is preferred that the splitting ratio of described fused biconical taper optical branching device is 50:50, the laser of i.e. 50% flows into
The outfan of described fused biconical taper optical branching device, the laser of 50% flows into described fused biconical taper optical branching device
Another outfan.
It is preferred that described input and an optical fiber collimator are connected, described optical fiber collimator is for by light
Laser coupled in fibre enters into the input of described fused biconical taper optical branching device.
It is preferred that all of described photodetector and an amplification treatment circuit are connected, at described amplification
Reason circuit and an analog to digital conversion circuit are connected, and described control processes circuit and analog-digital conversion circuit as described phase
Connecting, described amplification treatment circuit is amplified processing for the photoelectric current producing described photodetector,
It is digital signal that analog-digital conversion circuit as described is used for the analog-signal transitions after described photoelectric current amplification.
It is preferred that described control processes circuit and a communicating circuit is connected, described communicating circuit is used for carrying
Circuit and computer, panel computer, mobile phone or the data interaction condition of other equipment is processed for described control
And pipeline, described communicating circuit can use serial communication circuit, USB, and (Universal Serial Bus leads to
With universal serial bus), bluetooth, Wi-Fi (Wireless-Fidelity, Wireless Fidelity), LAN (Local Area
Network, LAN) etc. multiple choices scheme.
It is preferred that described luminous power test device include a power module, described power module respectively with institute
State amplification treatment circuit, analog-digital conversion circuit as described, described control process circuit, described communicating circuit phase
Connecting, described power module is for providing energy support to other modular circuits.
The most progressive effect of the present invention is:
Described luminous power test device uses pre-stored, compares and calculate the mode combined, and can realize certainly
The dynamic laser identifying different wave length, and can the most accurately measure the power level of optical fiber inner laser.Described light
Device for testing power is without specifying the light source of particular vendors, it is not required that tester is to test two ends, just
The laser of different wave length can be identified conveniently and efficiently and measure the power level of optical fiber inner laser.
Accompanying drawing explanation
Fig. 1 is the structural representation of the luminous power test device of a preferred embodiment of the present invention.
Detailed description of the invention
Name preferred embodiment, and combine accompanying drawing and become apparent from intactly illustrating the present invention.
With reference to shown in Fig. 1, the luminous power test device of a preferred embodiment of the present invention mainly includes melted drawing
Cone optical branching device 2, control process circuit 7, photodetector 3 and photodetector 4, and described melting is drawn
Cone optical branching device 2 includes input 21, outfan 22 and outfan 23, and described outfan 22 is corresponding
Connect described photodetector 3, the described outfan 23 described photodetector 4 of corresponding connection, described molten
Melting that to draw the splitting ratio of cone optical branching device 2 be 50:50, the laser of i.e. 50% flows into described fused biconical taper light and divides
The outfan 22 of road device 2, the laser of 50% flows into the outfan 23 of described fused biconical taper optical branching device 2；
Described input 21 is connected with optical fiber collimator 1, and described optical fiber collimator 1 is for by optical fiber
Laser coupled enters into the input 21 of described fused biconical taper optical branching device 2；Described photodetector 3
It is connected with amplification treatment circuit 5 with described photodetector 4, described amplification treatment circuit 5 and modulus
Change-over circuit 6 is connected, and described control processes circuit 7 and is connected with analog-digital conversion circuit as described 6, institute
State amplification treatment circuit 5 for the photoelectricity that described photodetector 3 and described photodetector 4 are produced
Stream carries out processing and amplifying, and analog-digital conversion circuit as described 6 is for by the analogue signal after described photoelectric current amplification
It is changed into digital signal；Described control processes circuit 7 and is connected with communicating circuit 9, described communicating circuit
9 for providing described control process circuit 7 and computer, panel computer, mobile phone or the number of other equipment
According to mutual condition and pipeline, described communicating circuit 9 uses serial communication circuit, it is possibility to have USB, indigo plant
The multiple choices scheme such as tooth, Wi-Fi, LAN；Described luminous power test device includes a power module 8,
Described power module 8 respectively with described amplification treatment circuit 5, analog-digital conversion circuit as described 6, described control
System processes circuit 7, described communicating circuit 9 is connected, and described power module 8 is for other module electricity
Road provides energy support.
The laser that fiber-optic transfer comes is coupled into by optical fiber collimator 1 and is mapped to fused biconical taper optical branching device 2
Input 21, laser enters into fused biconical taper optical branching device 2, fused biconical taper light by input 21
Laser is carried out light splitting by splitting ratio by shunt 2, and is respectively outputted to outfan 22 and outfan 23,
The laser correspondence assigned to is transferred to photodetector 3, the laser that outfan 23 will be assigned to by outfan 22
Correspondence is transferred to photodetector 4, photodetector 3 and photodetector 4 and produces corresponding photoelectric current,
And two-way photoelectric current is transferred to amplification treatment circuit 5, the amplification treatment circuit 5 two-way light to receiving
Electric current is amplified respectively processing and is transmitted to analog to digital conversion circuit 6 again, and analog to digital conversion circuit 6 connects
The analog-signal transitions received is digital signal, and digital data transmission to control processes circuit 7, control
System is processed circuit 7 and is calculated by the digital signal received, and draws outfan 22 and outfan
The luminous power of 23.
Fused biconical taper optical branching device 2 is the LMDS Light Coupled Device utilizing fused biconical taper method to make, for making
Fused biconical taper optical branching device 2, its coupled power is only relevant to the wavelength of input laser, therefore, difference
The ratio of the luminous power that the laser of wavelength exports outfan 22 and outfan 23 there are differences.At control
Reason circuit 7 pre-stored the first parameter and the second parameter；Described first parameter is each under known same light power
The laser of individual conventional different wave length ratio between the luminous power and the luminous power of outfan 23 of outfan 22
Value；Described second parameter has two kinds of ratios, one to be each conventional different wave length under known same light power
Laser at the luminous power of input 21 and the ratio of the luminous power of outfan 22, another kind is known phase
With the laser of each conventional different wave length under luminous power at the luminous power of input 21 and the light of outfan 23
The ratio of power.
In use, control processes circuit 7 by comparing the ratio between outfan 22 and outfan 23
With the wavelength that the first parameter identifies incident laser, after recognizing the wavelength of laser, control processes circuit 7
The luminous power of the input 21 of respective wavelength and the ratio of the luminous power of outfan 22 is called in the second parameter
Value, then by measurement to the luminous power of outfan 22 calculate the luminous power of input 21 so that
Accurately measure the power level of optical fiber inner laser.Equally, it is possible to by calling input in the second parameter
The ratio of the luminous power of end 21 and the luminous power of outfan 23 calculates the luminous power of input 21.
Described luminous power test device uses pre-stored, compares and calculate the mode combined, and can realize automatically knowing
The laser of other different wave length, and can the most accurately measure the power level of optical fiber inner laser.
Although the foregoing describing the detailed description of the invention of the present invention, but those skilled in the art should managing
Solving, this is merely illustrative of, and protection scope of the present invention is defined by the appended claims.Ability
The technical staff in territory, can be to these embodiments on the premise of without departing substantially from the principle of the present invention and essence
Make various changes or modifications, but these changes and amendment each fall within protection scope of the present invention.
Claims (7)
1. a luminous power test device, it is characterised in that described luminous power test device includes that melts
Melt and draw cone optical branching device, a control to process circuit and some photodetectors, described fused biconical taper light branch
Device includes an input and some outfans, and each described outfan correspondence connects a described smooth electrical resistivity survey
Survey device；
Described input is for by Laser Transmission to described fused biconical taper optical branching device, described fused biconical taper light
Laser is assigned to each described outfan by coupling by shunt, and the laser assigned to is divided by described outfan
Supplementary biography is passed to the described photodetector of correspondence, and described photodetector produces corresponding photoelectric current, described
Control processes circuit for being calculated the luminous power of correspondence by described light-spot galvanometer；
Described control processes circuit and is used for pre-stored the first parameter and the second parameter, and described first parameter is phase
With the laser of each different wave length under luminous power at ratio between the luminous power of outfan each described,
Described second parameter is luminous power and each institute of the described input of the laser of each different wave length described
State the ratio of the luminous power of outfan；
Described control processes circuit for by comparing the luminous power measuring each the described outfan arrived
Between ratio identify the wavelength of different laser from described first parameter, described control processes circuit also
For measuring described input by the luminous power of any one of outfan and described second parameter
Luminous power.
2. luminous power test device as claimed in claim 1, it is characterised in that described fused biconical taper
Optical branching device includes 2 outfans.
3. luminous power test device as claimed in claim 2, it is characterised in that described fused biconical taper
The splitting ratio of optical branching device is 50:50.
4. luminous power test device as claimed in claim 1, it is characterised in that described input with
One optical fiber collimator is connected.
5. luminous power test device as claimed in claim 1, it is characterised in that all of described light
Electric explorer and an amplification treatment circuit are connected, described amplification treatment circuit and an analog to digital conversion circuit phase
Connecting, described control processes circuit and is connected with analog-digital conversion circuit as described.
6. luminous power test device as claimed in claim 5, it is characterised in that described control processes
Circuit and a communicating circuit are connected.
7. luminous power test device as claimed in claim 6, it is characterised in that described luminous power is surveyed
Electricity testing device includes a power module, described power module respectively with described amplification treatment circuit, described modulus
Change-over circuit, described control process circuit, described communicating circuit is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510288735.3A CN106301543A (en) | 2015-05-29 | 2015-05-29 | Luminous power test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510288735.3A CN106301543A (en) | 2015-05-29 | 2015-05-29 | Luminous power test device |
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| Publication Number | Publication Date |
|---|---|
| CN106301543A true CN106301543A (en) | 2017-01-04 |
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ID=57655109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510288735.3A Pending CN106301543A (en) | 2015-05-29 | 2015-05-29 | Luminous power test device |
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| Country | Link |
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| CN (1) | CN106301543A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534894A (en) * | 2017-03-02 | 2018-09-14 | 上海光维通信技术股份有限公司 | Measuring device for analyzing each wavelength light beam luminous power in multiplex light |
| CN109687905A (en) * | 2019-01-24 | 2019-04-26 | 国网上海市电力公司 | A kind of intelligent substation communication link abnormal state detection system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202648795U (en) * | 2012-07-02 | 2013-01-02 | 宁波诺驰光电科技发展有限公司 | Optical power and wavelength measuring apparatus |
| CN103647600A (en) * | 2013-12-24 | 2014-03-19 | 武汉光迅科技股份有限公司 | Multi-channel intelligent optical testing device |
| CN203883838U (en) * | 2014-04-03 | 2014-10-15 | 镇江奥菲特光电科技有限公司 | Multichannel optical power meter used for automatically testing tapering optical branching device |
| CN104579457A (en) * | 2013-10-14 | 2015-04-29 | 上海光维通信技术股份有限公司 | Optical power testing device of PON (passive optical network) system |
-
2015
- 2015-05-29 CN CN201510288735.3A patent/CN106301543A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202648795U (en) * | 2012-07-02 | 2013-01-02 | 宁波诺驰光电科技发展有限公司 | Optical power and wavelength measuring apparatus |
| CN104579457A (en) * | 2013-10-14 | 2015-04-29 | 上海光维通信技术股份有限公司 | Optical power testing device of PON (passive optical network) system |
| CN103647600A (en) * | 2013-12-24 | 2014-03-19 | 武汉光迅科技股份有限公司 | Multi-channel intelligent optical testing device |
| CN203883838U (en) * | 2014-04-03 | 2014-10-15 | 镇江奥菲特光电科技有限公司 | Multichannel optical power meter used for automatically testing tapering optical branching device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534894A (en) * | 2017-03-02 | 2018-09-14 | 上海光维通信技术股份有限公司 | Measuring device for analyzing each wavelength light beam luminous power in multiplex light |
| CN109687905A (en) * | 2019-01-24 | 2019-04-26 | 国网上海市电力公司 | A kind of intelligent substation communication link abnormal state detection system |
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Application publication date: 20170104 |