CN206818386U - Optoisolator test system - Google Patents
Optoisolator test system Download PDFInfo
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- CN206818386U CN206818386U CN201720331473.9U CN201720331473U CN206818386U CN 206818386 U CN206818386 U CN 206818386U CN 201720331473 U CN201720331473 U CN 201720331473U CN 206818386 U CN206818386 U CN 206818386U
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Abstract
The utility model proposes a kind of optoisolator test system, including：The light source being sequentially connected, Polarization Controller and collimater, and optical power detection apparatus and be arranged on the collimater output end polarizer, when tested optoisolator is arranged between the polarizer and the optical power detection apparatus, the transmission direction that the Polarization Controller is used for by the light of the light source output in the optoisolator is consistent with the polarization direction regulation of the optoisolator, the light maximal efficiency that the collimater is used to make the light source output is coupled into the optoisolator, the polarizer is used to fix the polarization direction of the light from the collimater out, the optical power detection apparatus is used for the power for detecting the light from the optoisolator out.By the technical solution of the utility model, testing efficiency of the optoisolator test system when testing optoisolator can be improved.
Description
Technical field
Device detection technical field is the utility model is related to, in particular to optoisolator test system.
Background technology
Optoisolator is a kind of Passive Optical Components for allowing Unidirectional light to pass through, and is the long master away from band optical fiber network of high speed
Want device.The most important optical index of optoisolator have insertion loss (InsertionLoss, IL), isolation (Isolation,
2 key indexs such as ISO).Insertion loss refers to light caused luminous power decreasing value when forward direction inserts optoisolator, is defined as
The ratio of light forward direction power output and light forward direction input power, and 10 times of logarithm value is taken, with decibel (dB) for unit, that is, insert
IL, which is lost, is：
In above formula, PiRepresent light forward direction input power, PoRepresent light forward direction power output.
Isolation is to characterize optoisolator to the damping capacity of reverse transfer light, is defined as the reverse power output of light and light is anti-
To the ratio of input power, and 10 times of logarithm value is taken, with decibel (dB) for unit, i.e. isolation ISO is：
In above formula, Pi' represent the reverse input power of light, Po' represent the reverse power output of light.
Definition based on performance indications, the test philosophy for concluding optoisolator are as shown in Figure 1.That is the output of light source 102 ' polarization
Light is successively by Polarization Controller 104 ', tested optoisolator 200 ' and optical power detection apparatus 108 '.
As shown in Fig. 2 the optoisolator test system 100 ' in correlation technique includes：Light source 102 ', Polarization Controller
104 ', collimater 106 ' and optical power detection apparatus 108 ', wherein, optical power detection apparatus 108 ' include light probe 1082 ' and
Optical power detector 1084 ', tested optoisolator 200 ' is surveyed using optoisolator test system 100 ' as shown in Figure 2
The method of examination is as follows：
1) optoisolator test system 100 ' is adjusted, it is P to record optical power value after light source 102 ' is stablei(or
Optical power detector 1084 ' is above zeroed performance number), the light inputting end of tested optoisolator 200 ' is put towards collimater 106 '
Putting between collimater 106 ' and light probe 1082 ' and adjusting the tested position of optoisolator 200 ' makes tested optoisolator
200 ' based among light path, and adjustment Polarization Controller 104 ' is so that optical power value reaches maximum, record value Po, damaged according to insertion
Consumption IL calculation formula calculate IL values (or the value of optical power detector 1084 ' above is insertion loss IL values).
2) optoisolator test system 100 ' is adjusted, treats the stable postscript of light source 102 ' of optoisolator test system 100 '
Record optical power value is Pi(or performance number is zeroed above in optical power detector 1084 '), tested optoisolator 200 '
Light extraction end is placed between collimater 106 ' and light probe 1082 ' towards collimater 106 ' and adjusts tested optoisolator
200 ' positions make tested optoisolator 200 ' be based among light path, and adjustment Polarization Controller 104 ' is so that optical power value reaches most
Greatly, record value Po, ISO values (or the value of optical power detector 1084 ' above is calculated according to isolation ISO calculation formula
As isolation ISO values).
But the optoisolator test system of the above is required for adjusting Polarization Controller when testing each optoisolator,
It result in that the testing time that each optoisolator is spent is long, and single testing time about 10s, test repeatability is poor, test effect
Rate is low.
Therefore, how to improve testing efficiency of the optoisolator test system when testing optoisolator turns into urgently to be resolved hurrily
Technical problem.
Utility model content
The utility model is based on above mentioned problem, it is proposed that a kind of new technical scheme, can improve optoisolator survey
Testing efficiency of the test system when testing optoisolator.
In view of this, first aspect of the present utility model proposes a kind of optoisolator test system, including：It is sequentially connected
Light source, Polarization Controller and collimater, and optical power detection apparatus and be arranged on the collimater output end polarization
Piece, when tested optoisolator is arranged between the polarizer and the optical power detection apparatus, the Polarization Control
Device is used to adjust the polarization direction of transmission direction of the light of the light source output in the optoisolator and the optoisolator
Section is consistent, and the light maximal efficiency that the collimater is used to make the light source output is coupled into the optoisolator, institute
State polarizer to be used to fix the polarization direction of the light from the collimater out, the optical power detection apparatus is used to detect
The power of light from the optoisolator out.
In the technical scheme, polarizer is set by the output end in collimater, with will be from collimation by the polarizer
The polarization direction of light in device out is fixed, so that it is determined that the well polarization direction of the light inputting end of tested optoisolator, so logical
The adjustment of light stability can both have been completed by crossing adjustment Polarization Controller, i.e., when testing the IL of optoisolator, light forward direction input work
Rate is fixed, and when testing the ISO of optoisolator, the reverse input power of light is also fixed so that follow-up test other
Optoisolator when, without adjusting Polarization Controller again, so as to improve the testing efficiency to optoisolator.Specifically, the light every
From about 2 seconds testing times of each optoisolator of device test system and test, testing efficiency lifts 5 times, and test repeatability
It is good.
In the above-mentioned technical solutions, it is preferable that also include：Terminal, it is connected to the optical power detection apparatus, the terminal
For the power detected according to the optical power detection apparatus, the test result of the optoisolator is exported.
In the technical scheme, terminal obtains its power detected from optical power detection apparatus, including during test IL
Light forward direction power output and test ISO when the reverse power output of light, to calculate optoisolator according to the testing result
IL and ISO.And the terminal can output test result, for example, display IL and ISO numerical value, the light for prompting user to be detected
The information such as whether isolator qualified.
In any of the above-described technical scheme, it is preferable that the terminal is additionally operable to, and shows Article Number, the type of the optoisolator
Number, the wavelength of batch number, light, operator's name.
In the technical scheme, pass through the Article Number of terminal display optoisolator, model, batch number, the wavelength of light, operator
Name, in order to which user has more specifical understanding to detected optoisolator.
In any of the above-described technical scheme, it is preferable that the terminal includes：Memory, for storing the optoisolator
Test result.
In any of the above-described technical scheme, it is preferable that the optical power detection apparatus includes：Connected light probe and light work(
Rate detector, the terminal are connected to the optical power detector, and when testing the optoisolator, the optoisolator is set
Between the polarizer and the light probe, the light probe is used to receive the light from the optoisolator out, described
Optical power detector is used for the power for detecting the light from the optoisolator out.
In any of the above-described technical scheme, it is preferable that the optical power detector includes：Light power meter and/or spectrum point
Analyzer.
In any of the above-described technical scheme, it is preferable that the light of the light source output is polarised light.
In any of the above-described technical scheme, it is preferable that the power of the light of the light source output is changeless value.
In the technical scheme, the power of the light of light source output is changeless value, i.e. light source output is just stablized
, so as to ensure that the test accuracy of optoisolator test system.
In any of the above-described technical scheme, it is preferable that the ripple of the wavelength of the light of the light source output and the optoisolator
Length is identical.
In any of the above-described technical scheme, it is preferable that the light source includes：Distributed feedback laser or Fabry-Perot
Sieve laser or tunable laser.
By the technical solution of the utility model, survey of the optoisolator test system when testing optoisolator can be improved
Try efficiency.
Brief description of the drawings
Fig. 1 shows the principle schematic of the optoisolator test system in correlation technique；
Fig. 2 shows the structural representation of the optoisolator test system in correlation technique；
Fig. 3 shows the structural representation of the optoisolator test system according to embodiment of the present utility model.
Wherein, the corresponding relation in Fig. 1 and Fig. 2 between the mark and component names of accompanying drawing is：
100 ' optoisolator test systems, 102 ' light sources, 104 ' Polarization Controllers, 106 ' collimaters, the inspection of 108 ' luminous powers
Survey device, 1082 ' light probes, 1084 ' optical power detectors, optoisolator 200 '；
Corresponding relation in Fig. 3 between the mark and component names of accompanying drawing is：
100 optoisolator test systems, 102 light sources, 104 Polarization Controllers, 106 collimaters, 108 luminous powers detection dress
Put, 1082 light probes, 1084 optical power detectors, 110 polarizers, 112 terminals, optoisolator 200.
Embodiment
In order to which above-mentioned purpose of the present utility model, feature and advantage can be more clearly understood that, below in conjunction with the accompanying drawings and tool
The utility model is further described in detail body embodiment.It should be noted that in the case where not conflicting, this Shen
The feature in embodiment and embodiment please can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
New to be different from other modes described here using other to implement, therefore, the scope of protection of the utility model is simultaneously
Do not limited by following public specific embodiment.
As shown in figure 3, a kind of optoisolator test system 100 is proposed according to first aspect of the present utility model, including：
Light source 102, Polarization Controller 104 and the collimater 106 being sequentially connected, and optical power detection apparatus 108 and it is arranged on collimation
The polarizer 110 of the output end of device 106, when tested optoisolator 200 is arranged on polarizer 110 and optical power detection apparatus
When between 108, Polarization Controller 104 is used for transmission direction of the light that light source 102 exports in optoisolator 200 and optically isolated
The polarization direction regulation of device 200 is consistent, and the light maximal efficiency that collimater 106 is used to export light source 102 is coupled into light
In isolator 200, polarizer 110 is used to fix the polarization direction of the light from collimater 106 out, optical power detection apparatus
108 are used for the power of the light of detection from optoisolator 200 out.
In the technical scheme, polarizer 110 is set by the output end in collimater 106, to pass through the polarizer 110
The polarization direction of light from collimater 106 out is fixed, so that it is determined that the light inputting end for the optoisolator 200 being tested well is inclined
Shake direction, so can both complete the stable adjustment of light source 102 by adjusting Polarization Controller 104, i.e., in test optoisolator
During 200 IL, light forward direction input power is fixed, and when testing the ISO of optoisolator 200, the reverse input power of light is also
Fixed so that in follow-up test others optoisolator 200, without adjusting Polarization Controller 104 again, so as to improve to light
The testing efficiency of isolator 200.Specifically, the optoisolator test system 100 tests the testing time of each optoisolator 200
About 2 seconds, testing efficiency lifted 5 times, and test repeatability is good.
It is understood that also include：Terminal 112, is connected to optical power detection apparatus 108, and terminal 112 is used for according to light
The power that power detection device 108 detects, export the test result of optoisolator 200.
Terminal 112 obtains its power detected from optical power detection apparatus 108, including light forward direction during test IL is defeated
The reverse power output of light when going out power and testing ISO, to calculate the IL and ISO of optoisolator 200 according to the testing result.
And the terminal 112 can output test result, for example, display IL and ISO numerical value, the optoisolator for prompting user to be detected
200 information such as whether qualified.
It is understood that terminal 112 is additionally operable to, the Article Number of display optoisolator 200, model, batch number, the ripple of light
Long, operator's name.
Article Number, model, batch number, the wavelength of light, the operator's name of optoisolator 200 are shown by terminal 112, so as to
There is more specifical understanding to detected optoisolator 200 in user.
It is understood that terminal 112 includes：Memory, for storing the test result of optoisolator 200.
It is understood that optical power detection apparatus 108 includes：Connected light probe 1082 and optical power detector
1084, the terminal 112 is connected to the optical power detector 1084, described optically isolated when testing the optoisolator 200
Device 200 is arranged between the polarizer 110 and the light probe 1082, the light probe 1082 be used for receive from the light every
From the light in device 200 out, the optical power detector 1084 is used for the work(for detecting the light from the optoisolator 200 out
Rate.
It is understood that optical power detector 1084 includes：Light power meter and/or spectroanalysis instrument.
It is understood that the light that light source 102 exports is polarised light.
It is understood that the power for the light that light source 102 exports is changeless value.
The power of light that light source 102 exports be changeless value, i.e., what what light source 102 exported just stablized, so as to protect
The test accuracy of optoisolator test system 100 is demonstrate,proved.
It is understood that the wavelength for the light that light source 102 exports is identical with the wavelength of optoisolator 200.
It is understood that light source 102 includes：Distributed feedback laser or fabry-Perot type laser are tunable
Laser.
Certainly, light source 102 includes but is not limited to three of the above light source, and can also be other kinds of can send stable work(
The light source of rate light.
The specific method tested using the optoisolator test system 100 in above-mentioned technical proposal is as follows：
1) optoisolator test system 100 is adjusted, while adjusts Polarization Controller 104 so that optical power value reaches most
Greatly, performance number is zeroed on optical power detector 1084 after stabilization, the light inputting end direction collimation of tested optoisolator 200
Device 106, which is placed between polarizer 110 and light probe 1082 and adjusts the position of optoisolator 200, makes the base of optoisolator 200
Among light path, the maximizing of optoisolator 200 is rotated, selection preservation IL, that is, deposit on the test interface that terminal 112 is shown
The insertion loss IL of optoisolator 200 is stored up.
2) optoisolator test system 100 is adjusted, while adjusts Polarization Controller 104 so that optical power value reaches most
Greatly, performance number is zeroed on optical power detector 1084 after stabilization, the light extraction end direction tested optoisolator 200 is accurate
Straight device 106, which is placed between polarizer 110 and light probe 1082 and adjusts the position of optoisolator 200, makes optoisolator 200
Among light path, the maximizing of optoisolator 200 is rotated, the selection preservation ISO on the test interface that terminal 112 is shown,
Store the isolation ISO of optoisolator 200.
The technical solution of the utility model is described in detail above in association with accompanying drawing, by the technical solution of the utility model,
Testing efficiency of the optoisolator test system when testing optoisolator can be improved.
In the utility model, term " first ", " second " are only used for the purpose of description, and it is not intended that instruction or dark
Show relative importance；Term " multiple " represents two or more；Term " connected ", " connection " etc. all should be interpreted broadly,
For example, it may be being fixedly connected or being detachably connected, or it is integrally connected；Can be joined directly together, can also pass through
Intermediary is indirectly connected.For the ordinary skill in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the utility model.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. optoisolator test system, it is characterised in that including：Light source, Polarization Controller and the collimater being sequentially connected, and optical power detection apparatus and it is arranged on the collimater The polarizer of output end,When tested optoisolator is arranged between the polarizer and the optical power detection apparatus, the Polarization Control Device is used to adjust the polarization direction of transmission direction of the light of the light source output in the optoisolator and the optoisolator Section is consistent, and the light maximal efficiency that the collimater is used to make the light source output is coupled into the optoisolator, institute State polarizer to be used to fix the polarization direction of the light from the collimater out, the optical power detection apparatus is used to detect The power of light from the optoisolator out.
- 2. optoisolator test system according to claim 1, it is characterised in that also include：Terminal, is connected to the optical power detection apparatus, and the terminal is used for what is detected according to the optical power detection apparatus Power, export the test result of the optoisolator.
- 3. optoisolator test system according to claim 2, it is characterised in that the terminal is additionally operable to,Show Article Number, model, batch number, the wavelength of light, the operator's name of the optoisolator.
- 4. optoisolator test system according to claim 2, it is characterised in that the terminal includes：Memory, for storing the test result of the optoisolator.
- 5. optoisolator test system according to claim 2, it is characterised in that the optical power detection apparatus includes：Connected light probe and optical power detector, the terminal are connected to the optical power detector, when test the light every During from device, the optoisolator is arranged between the polarizer and the light probe, and the light probe is used to receive from described Light in optoisolator out, the optical power detector are used for the power for detecting the light from the optoisolator out.
- 6. optoisolator test system according to claim 5, it is characterised in thatThe optical power detector includes：Light power meter and/or spectroanalysis instrument.
- 7. optoisolator test system according to any one of claim 1 to 6, it is characterised in thatThe light of the light source output is polarised light.
- 8. optoisolator test system according to any one of claim 1 to 6, it is characterised in thatThe power of the light of the light source output is changeless value.
- 9. optoisolator test system according to any one of claim 1 to 6, it is characterised in thatThe wavelength of the light of the light source output is identical with the wavelength of the optoisolator.
- 10. optoisolator test system according to any one of claim 1 to 6, it is characterised in thatThe light source includes：Distributed feedback laser or fabry-Perot type laser or tunable laser.
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| CN201720331473.9U CN206818386U (en) | 2017-03-31 | 2017-03-31 | Optoisolator test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969905A (en) * | 2017-03-31 | 2017-07-21 | 深圳市芯思杰智能物联网技术有限公司 | Optoisolator test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969905A (en) * | 2017-03-31 | 2017-07-21 | 深圳市芯思杰智能物联网技术有限公司 | Optoisolator test system |
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