CN107835048A - Optical module test system - Google Patents
Optical module test system Download PDFInfo
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- CN107835048A CN107835048A CN201711363742.0A CN201711363742A CN107835048A CN 107835048 A CN107835048 A CN 107835048A CN 201711363742 A CN201711363742 A CN 201711363742A CN 107835048 A CN107835048 A CN 107835048A
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- optical
- optical module
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- module
- modules
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The present invention relates to a kind of optical module test system, wherein the system includes at least two optical module, the first shunt, the second shunt, single channel Error Detector, OLT modules and at least two optical module testers to be measured, and described at least two optical modules to be measured are connected with the first described shunt；Described single channel Error Detector is connected with the optical module tester, described board under test, described OLT modules of at least two described optical module testers respectively.Employ the optical module test system in the invention, binary channels Error Detector of the prior art is replaced by single channel Error Detector, cost is saved, while plug optical fiber is no longer needed when testing eye pattern, power and sensitivity, substantially increases efficiency, decrease the loss of optical fiber, more importantly can the multiple modules of disposable test, and the reception electric eye figure in multiple modules, compared to prior art, safety and power saving, have wider application.
Description
Technical field
The present invention relates to debugging field, more particularly to the debugging field of optical module, in particular to a kind of optical module test system
System.
Background technology
In the optical module test of routine, it is necessary to test the eye pattern of optical module, receiving sensitivity, spectrum, DDM report etc. it is each
Kind parameter.But all it is that first survey is sent, rear survey receives, be right because ONU modules use the design method of transceiver, when often testing
The independent test step by step such as scanning optical spectrum afterwards.Such method of testing will not only plug optical fiber every time, lose time, also band
Many plug errors are entered, have made test data not consistent enough.And when high/low temperature is tested, if opening incubator and then carrying out
The operation of optical fiber is plugged, first, dangerous, because 85 degree of easy scalds of high temperature, low temperature -45 spends easy frostbite.Second, in plug
When see in plug loss, make test data inaccurate.Three can also make the temperature inside incubator drastically reduce or raise,
Returning to test temperature must devote a tremendous amount of time.
Refer to shown in Fig. 1, it is the configuration diagram of an optical module test system of prior art.It is inside incubator
N number of module is disposably put, then one of module is inserted into electrical testing on test board, and the optical fiber of extraction first connects with light power meter
Connect, test luminous power, then pull up and connected with spectrometer, test spectral, then pull up again and link test eye pattern with ophthalmograp.With
This analogizes, and an optical fiber must all be plugged by often testing one, and plugs handy end surface measurement instrument detection end face after optical fiber, if end
Face is dirty to be cleaned., it is necessary to open incubator after a module has been surveyed, then one module of quick-replaceable is followed by test.
Change Temperature of Warm Case again after all modules have been surveyed, repeat the above steps.
Refer to shown in Fig. 2, it is the configuration diagram of another optical module test system of prior art.It is in incubator
A module is once put in face, and the optical fiber of extraction first connects with light power meter, tests luminous power, then pull up and connected with spectrometer,
Test spectral, then pull up again and link test eye pattern with ophthalmograp.By that analogy, an optical fiber must all be plugged by often testing one,
And handy end surface measurement instrument detection end face after plug optical fiber, it must be cleaned if end face is dirty.Incubator is entered after having surveyed normal temperature
Row heating test high temperature, cools to incubator after having surveyed high temperature, tests low temperature.
And such scheme of the prior art, have the following disadvantages：
1st, cost height is, it is necessary to binary channels Error Detector；
2nd, the testing time grow, often survey a project all manually plug fibre-optic switching apparatus；
3rd, the plug optical fiber repeated causes precise decreasing, and the damage to optical fiber is also big；
4th, the module inside incubator is changed under high/low temperature and easily causes scald or frostbite, it is dangerous；
5th, it can change incubator internal temperature after opening incubator under high/low temperature, it is necessary to could for a long time recover stable；
6th, steam can be entered by incubator being opened under low temperature, make the easy frosting of plank, cause plank short-circuit；
7th, can not test module reception electric eye figure；
8th, often testing once must all plug an optical fiber, lose time；
9th, a module can only be once tested, efficiency is low；
10th, often survey a secondary module and all obtain heating and cooling once, waste electricity.
The content of the invention
The purpose of the present invention is the shortcomings that overcoming above-mentioned prior art, there is provided a kind of optical module that can reduce cost
Test system.
To achieve these goals, optical module test system of the invention has following form：
The optical module test system, it is mainly characterized by, described system include at least two optical modules to be measured, first point
Road device, the second shunt, single channel Error Detector, OLT modules and at least two optical module testers；
At least two described optical modules to be measured are connected with the first described shunt, and described at least two is to be measured
Optical module is selected one and is positioned on a board under test；
The first described shunt is connected with the second described shunt, and the first described shunt with it is described extremely
Few two optical modules to be measured are connected；
The second described shunt is connected with least two described optical module testers；
Described single channel Error Detector is tested with an optical module of at least two described optical module testers respectively
Instrument, described board under test, described OLT modules are connected；
Described OLT modules are connected with least two described optical module testers.
At least two optical modules to be measured of the optical module test system are eight optical modules to be measured, and described eight are treated light-metering
Module is respectively the first optical module to be measured, the second optical module to be measured, the 3rd optical module to be measured, the 4th optical module to be measured, the 5th treated
Light-metering module, the 6th optical module, the 7th optical module to be measured and the 8th optical module to be measured to be measured, the first described shunt are one point
Eight optical branching devices, the described first optical module to be measured, the second optical module to be measured, the 3rd optical module to be measured, the 4th optical module to be measured,
5th optical module to be measured, the 6th optical module, the 7th optical module to be measured and the 8th optical module to be measured to be measured with described one point eight
Optical branching device is connected, and the 8th described optical module to be measured is positioned on described board under test.
At least two optical module testers of the optical module test system include ophthalmograp, power meter, spectrometer and VOA
Optical attenuation test module, described ophthalmograp, power meter, spectrometer and VOA optical attenuation test modules are respectively provided with output end, described
The second shunt be one point of four optical branching device, there are described one point of four optical branching device the one one point of four optical branching devices to input
End, the 2nd 1 point of four optical branching device input, the 3rd 1 point of four optical branching device input, the 4th 1 point of four optical branching device input
With May Day point four optical branching device inputs, described ophthalmograp, power meter, spectrometer and VOA optical attenuation test modules it is defeated
Go out end respectively with the one one point of four described optical branching device input, the 2nd 1 point of four optical branching device input, the 3rd 1 point four
Optical branching device input and the 4th 1 point of four optical branching device input are connected.
The single channel Error Detector of the optical module test system has transmitting cathode output end and transmitting cathode output end, described
Board under test there is board under test input, described OLT modules have OLT module inputs, described transmitting cathode output end
It is connected with described board under test input, described transmitting cathode output end is connected with described OLT module input blocks.
The board under test of the optical module test system, which has, receives cathode output end and reception cathode output end, described reception
Cathode output end is connected with an optical module tester of at least two described optical module testers, described reception
Cathode output end is connected with the input of single channel Error Detector.
The single channel Error Detector of the optical module test system has single channel Error Detector output end, and described ophthalmograp has
Ophthalmograp first input end and the input of ophthalmograp second, described single channel Error Detector output end and described ophthalmograp first
Input is connected.
The reception cathode output end of the optical module test system is connected with the described input of ophthalmograp second.
One point of eight optical branching device of the optical module test system has one point of eight optical branching device output end, described one point eight
Optical branching device output end is connected with four optical branching device inputs of described May Day point.
The OLT modules of the optical module test system have OLT module output ends, and described VOA optical attenuators have VOA light
Attenuator input, described OLT modules output end are connected with described VOA optical attenuator inputs.
The optical module test system in the invention is employed, binary channels of the prior art is replaced by single channel Error Detector
Error Detector, cost is saved, while plug optical fiber is no longer needed when testing eye pattern, power and sensitivity, substantially increased
Efficiency, decrease the loss of optical fiber, it is often more important that can the multiple modules of disposable test, and in multiple modules reception electricity
Eye pattern, compared to prior art, safety and power saving have wider application.
Brief description of the drawings
Fig. 1 is the configuration diagram of an optical module test system of prior art.
Fig. 2 is the configuration diagram of another optical module test system of prior art.
Fig. 3 is the configuration diagram of the optical module test system of the present invention.
Embodiment
In order to more clearly describe the technology contents of the present invention, carried out with reference to specific embodiment further
Description.
Refer to shown in Fig. 3, it is the configuration diagram of the optical module test system of the present invention.Optical module test system
System, it is mainly characterized by, and described system includes at least two optical modules to be measured, the first shunt, the second shunt, single channel
Error Detector, OLT modules and at least two optical module testers；
At least two described optical modules to be measured are connected with the first described shunt, and described at least two is to be measured
Optical module is selected one and is positioned on a board under test；
The first described shunt is connected with the second described shunt, and the first described shunt with it is described extremely
Few two optical modules to be measured are connected；
The second described shunt is connected with least two described optical module testers；
Described single channel Error Detector is tested with an optical module of at least two described optical module testers respectively
Instrument, described board under test, described OLT modules are connected；
Described OLT modules are connected with least two described optical module testers.
At least two optical modules to be measured of the optical module test system are eight optical modules to be measured, and described eight are treated light-metering
Module is respectively the first optical module to be measured, the second optical module to be measured, the 3rd optical module to be measured, the 4th optical module to be measured, the 5th treated
Light-metering module, the 6th optical module, the 7th optical module to be measured and the 8th optical module to be measured to be measured, the first described shunt are one point
Eight optical branching devices, the described first optical module to be measured, the second optical module to be measured, the 3rd optical module to be measured, the 4th optical module to be measured,
5th optical module to be measured, the 6th optical module, the 7th optical module to be measured and the 8th optical module to be measured to be measured with described one point eight
Optical branching device is connected, and the 8th described optical module to be measured is positioned on described board under test.
At least two optical module testers of the optical module test system include ophthalmograp, power meter, spectrometer and VOA
Optical attenuation test module, described ophthalmograp, power meter, spectrometer and VOA optical attenuation test modules are respectively provided with output end, described
The second shunt be one point of four optical branching device, there are described one point of four optical branching device the one one point of four optical branching devices to input
End, the 2nd 1 point of four optical branching device input, the 3rd 1 point of four optical branching device input, the 4th 1 point of four optical branching device input
With May Day point four optical branching device inputs, described ophthalmograp, power meter, spectrometer and VOA optical attenuation test modules it is defeated
Go out end respectively with the one one point of four described optical branching device input, the 2nd 1 point of four optical branching device input, the 3rd 1 point four
Optical branching device input and the 4th 1 point of four optical branching device input are connected.
The single channel Error Detector of the optical module test system has transmitting cathode output end and transmitting cathode output end, described
Board under test there is board under test input, described OLT modules have OLT module inputs, described transmitting cathode output end
It is connected with described board under test input, described transmitting cathode output end is connected with described OLT module input blocks.
The board under test of the optical module test system, which has, receives cathode output end and reception cathode output end, described reception
Cathode output end is connected with an optical module tester of at least two described optical module testers, described reception
Cathode output end is connected with the input of single channel Error Detector.
The single channel Error Detector of the optical module test system has single channel Error Detector output end, and described ophthalmograp has
Ophthalmograp first input end and the input of ophthalmograp second, described single channel Error Detector output end and described ophthalmograp first
Input is connected.
The reception cathode output end of the optical module test system is connected with the described input of ophthalmograp second.
One point of eight optical branching device of the optical module test system has one point of eight optical branching device output end, described one point eight
Optical branching device output end is connected with four optical branching device inputs of described May Day point.
The OLT modules of the optical module test system have OLT module output ends, and described VOA optical attenuators have VOA light
Attenuator input, described OLT modules output end are connected with described VOA optical attenuator inputs.
In actual applications, optical module test system of the invention uses single channel Error Detector, and TX+ is connected to inside incubator
Beta version, to tape test optical module provide TX signals, the TX- of Error Detector is connected to OLT beta versions, give OLT provide transmitting
Signal.Then the RX- of beta version being looped back to Error Detector, the receiving sensitivity of test module, RX+ is connected to the power port of ophthalmograp,
Facilitate the reception electric eye figure of test module.
In actual applications, 8 modules disposably are put inside incubator, are then connected by 1 × 8 optical branching device,
One module is inserted in above beta version upper electrical testing, and seven are placed on precooling or preheating in incubator in addition.Then 1 × 8 shunt
Common port and the common port of 1 × 4 shunt be connected, 4 mouths of 1 × 4 shunt respectively and ophthalmograp, spectrometer, power
Meter, VOA are connected.Optical fiber so need not be plugged in test, can directly test luminous power, eye pattern, receiving sensitivity, spectrum
Deng.And without going to tear SMA wire open during the RX eye patterns of test optical module, the passage can of the directly lower ophthalmograp of switching is directly surveyed
Examination.
In actual applications, after a module testing is complete, open incubator and directly change another module, this process is only
Several seconds cans are needed to realize.Incubator is opened according to method of the prior art, module is then pulled up, then pulls up optical fiber,
Optical fiber is inserted into again new module, then module is inserted into test board.Big half a minute is spent among this, in swapping process easily
Scald, frostbite.And opening time one is grown, Temperature of Warm Case can decline quickly during 85 ° of high temperature, after shutdown heat up again, waste
Time and electricity.During -40 ° of low temperature, not only temperature can be raised to rise again and taken long enough, and lose time to waste electricity.And it can enter
Many steam, cause beta version frosting short-circuit.
The optical module test system in the invention is employed, binary channels of the prior art is replaced by single channel Error Detector
Error Detector, cost is saved, while plug optical fiber is no longer needed when testing eye pattern, power and sensitivity, substantially increased
Efficiency, decrease the loss of optical fiber, it is often more important that can the multiple modules of disposable test, and in multiple modules reception electricity
Eye pattern, compared to prior art, safety and power saving have wider application.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that it can still make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings are considered as illustrative
It is and nonrestrictive.
Claims (9)
1. a kind of optical module test system, it is characterised in that described system includes at least two optical modules to be measured, the first branch
Device, the second shunt, single channel Error Detector, OLT modules and at least two optical module testers；
At least two described optical modules to be measured are connected with the first described shunt, and described at least two optical modes to be measured
Block is selected one and is positioned on a board under test；
The first described shunt is connected with the second described shunt, and the first described shunt and described at least two
Individual optical module to be measured is connected；
The second described shunt is connected with least two described optical module testers；
Described single channel Error Detector respectively an optical module tester with least two described optical module testers,
Described board under test, described OLT modules are connected；
Described OLT modules are connected with least two described optical module testers.
2. optical module test system according to claim 1, it is characterised in that at least two described optical modules to be measured are
Eight optical modules to be measured, described eight optical modules to be measured are respectively the first optical module to be measured, the second optical module to be measured, the 3rd treated
Light-metering module, the 4th optical module to be measured, the 5th optical module to be measured, the 6th optical module to be measured, the 7th optical module to be measured and the 8th are treated
Light-metering module, the first described shunt are one point of eight optical branching device, the described first optical module to be measured, the second optical mode to be measured
Block, the 3rd optical module to be measured, the 4th optical module to be measured, the 5th optical module to be measured, the 6th optical module to be measured, the 7th optical module to be measured
It is connected with the 8th optical module to be measured with one point of eight described optical branching device, the 8th described optical module to be measured is positioned over described
Board under test on.
3. optical module test system according to claim 2, it is characterised in that at least two described optical module testers
Device includes ophthalmograp, power meter, spectrometer and VOA optical attenuation test modules, described ophthalmograp, power meter, spectrometer and VOA
Optical attenuation test module is respectively provided with output end, and the second described shunt is one point of four optical branching device, and described one point of four light divides
Road utensil has the one one point of four optical branching device input, the 2nd 1 point of four optical branching device input, the 3rd 1 point of four optical branching devices
Input, the 4th 1 point of four optical branching device input and May Day point four optical branching device inputs, described ophthalmograp, power
Meter, spectrometer and VOA optical attenuation test modules output end respectively with described the one one point of four optical branching device input, second
One point of four optical branching device input, the 3rd 1 point of four optical branching device input and the 4th 1 point of four optical branching device input are connected
Connect.
4. optical module test system according to claim 1, it is characterised in that described single channel Error Detector has transmitting
Cathode output end and transmitting cathode output end, described board under test have board under test input, and described OLT modules have OLT
Module input, described transmitting cathode output end are connected with described board under test input, the output of described transmitting negative pole
End is connected with described OLT module input blocks.
5. optical module test system according to claim 3, it is characterised in that described board under test has reception positive pole defeated
Go out end and receive cathode output end, described one that receives cathode output end and at least two described optical module testers
Optical module tester is connected, and described reception cathode output end is connected with the input of single channel Error Detector.
6. optical module test system according to claim 5, it is characterised in that described single channel Error Detector has single-pass
Road Error Detector output end, described ophthalmograp have ophthalmograp first input end and the input of ophthalmograp second, described single-pass
Road Error Detector output end is connected with described ophthalmograp first input end.
7. optical module test system according to claim 6, it is characterised in that described reception cathode output end with it is described
The input of ophthalmograp second be connected.
8. optical module test system according to claim 3, it is characterised in that one point of eight described optical branching device has one
Divide eight optical branching device output ends, described one point of eight optical branching device output end and four optical branching device inputs of described May Day point
It is connected.
9. optical module test system according to claim 1, it is characterised in that described OLT modules have OLT modules defeated
Go out end, described VOA optical attenuators have VOA optical attenuator inputs, described OLT modules output end and described VOA light
Attenuator input is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711363742.0A CN107835048A (en) | 2017-12-18 | 2017-12-18 | Optical module test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711363742.0A CN107835048A (en) | 2017-12-18 | 2017-12-18 | Optical module test system |
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| CN107835048A true CN107835048A (en) | 2018-03-23 |
Family
ID=61644894
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| CN201711363742.0A Pending CN107835048A (en) | 2017-12-18 | 2017-12-18 | Optical module test system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061773A (en) * | 2019-04-29 | 2019-07-26 | 武汉光迅科技股份有限公司 | A kind of light module test method, device, system and computer storage medium |
| CN111884718A (en) * | 2020-08-24 | 2020-11-03 | 湖南中科光电有限公司 | Optical module test system for optical communication |
| CN115314105A (en) * | 2022-07-06 | 2022-11-08 | 江苏信而泰智能装备有限公司 | BOB test system |
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| CN202903227U (en) * | 2012-10-26 | 2013-04-24 | 江苏奥雷光电有限公司 | Tester for simultaneously testing multiple optical modules with one path of signals |
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| US6317535B1 (en) * | 1999-08-24 | 2001-11-13 | Lucent Technologies Inc. | System and method for testing optical fibers that lead between a telecommunications provider and a customer's premises |
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| CN111884718A (en) * | 2020-08-24 | 2020-11-03 | 湖南中科光电有限公司 | Optical module test system for optical communication |
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