CN208508947U - LAN_WDM optical device detection device - Google Patents
LAN_WDM optical device detection device Download PDFInfo
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- CN208508947U CN208508947U CN201821303062.XU CN201821303062U CN208508947U CN 208508947 U CN208508947 U CN 208508947U CN 201821303062 U CN201821303062 U CN 201821303062U CN 208508947 U CN208508947 U CN 208508947U
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Abstract
The purpose of the utility model is to provide a kind of LAN_WDM optical device detection devices, the utility model is used to detect the insertion loss and Polarization Dependent Loss of optic communication passive device LAN_WDM, it can reduce cost, it improves efficiency, increase the scope of application, the main indicator of measured device is the PDL under IL and four wavelength state under four wavelength states.Functional unit used is all connected into system by the utility model, forms more power detecting systems, then creative to cancel four laser light sources and four Polarization Controllers.Again creatively isolate a 2nd 4X1_CWDM wavelength division multiplexer so that detection device not only low cost but also high-efficiency multifunctional.Detection efficiency is able to solve, the problems such as setup cost.
Description
Technical field
The utility model relates to a kind of LAN_WDM optical device detection devices.
Background technique
Existing LAN_WDM optical device detection device is used to detect the insertion loss of optic communication passive device LAN_WDM
(IL) and Polarization Dependent Loss (PDL).As shown in Figure 1, existing LAN_WDM optical device detection device needs 4 arbitrary sources
LD1, LD2, LD3, LD4 and 4 electronic polarization PC1, PC2, PC3, PC4.
For LAN_WDM optical device (DUT) with quickling increase, LAN_WDM optical device detection device shown in FIG. 1 can only be right
The LAN_WDM optical device (DUT1) of FC, LC, SC interface class is detected, and to the LAN_WDM optical device (DUT1) of FA interface class
Test is difficult or can not detect.
Utility model content
One purpose of the utility model is to provide a kind of LAN_WDM optical device detection device.
One aspect according to the present utility model provides a kind of LAN_WDM optical device detection device, the LAN_WDM light
Device testing apparatus includes:
The four-wavelength laser of FC/PC interface；
First 4X1_CWDM wavelength division multiplexer of FC/PC interface, the output end of the four-wavelength laser of the FC/PC interface
It is connected to four input terminals of the first 4X1_CWDM wavelength division multiplexer；
The output end of the electric high-speed polarization module of FC/PC interface, the first 4X1_CWDM wavelength division multiplexer is connected to
The input terminal of the electric high-speed polarization module；
The output end of the 1X4_CWDM wavelength division multiplexer of FC/PC interface, the electric high-speed polarization module is connected to 1X4_
The input terminal of CWDM wavelength division multiplexer；
Four road 1X1 single mode photoswitches of FC/PC interface, four output ends of the 1X4_CWDM wavelength division multiplexer connect respectively
Connect the input terminal of the four roads 1X1 single mode photoswitch；
The MCU being connect respectively with the electric high-speed polarization module and four road 1X1 single mode photoswitches；
4 road single mode optical splitters of FC/PC interface, 1X2,50:50, the output end point of the four roads 1X1 single mode photoswitch 4
The input terminal of the 4 road single mode optical splitter is not connected, and every road output end of the 4 road single mode optical splitter is divided into two-way, shape
At the output end of totally 8 road FC/PC；
2nd 4X1_CWDM wavelength division multiplexer of FC/PC interface, every road output end of the 4 road single mode optical splitter its
In be respectively connected to the input terminal all the way of the 2nd 4X1_CWDM wavelength division multiplexer all the way；
The flange port of five road FC/PC interfaces, the output end of the 2nd 4X1_CWDM wavelength division multiplexer are connected to wherein one
The wherein another way of road flange port, every road output end of the 4 road single mode optical splitter is respectively connected to remaining four road flange
Mouthful；
PD detector.
Further, in above-mentioned LAN_WDM optical device detection device, the diameter of the PD detector is 5mm.
Compared with prior art, the utility model be used for detect optic communication passive device LAN_WDM insertion loss and partially
Shake dependent loss, is the higher detection device of integrated level.The utility model can reduce cost, improve efficiency, and increases and is applicable in model
It encloses, the main indicator of measured device is the PDL under IL and four wavelength state under four wavelength states.The utility model is by institute
System is all connected into functional unit, forms more power detecting systems, it is then creative to cancel four laser light sources and four
Polarization Controller.Again creatively isolate a 2nd 4X1_CWDM wavelength division multiplexer so that detection device not only low cost but also
High-efficiency multifunctional.Detection efficiency is able to solve, the problems such as setup cost.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the utility model
Other features, objects and advantages will become more apparent upon:
Fig. 1 shows the schematic diagram of existing LAN_WDM optical device detection device；
Fig. 2 shows interfaces such as the FC LC SC ST of an embodiment of the present invention, the LAN_WDM based on AWG chip it is tested
PDL, IL optical system for testing of device build figure；
Fig. 3 shows the LAN_ of FA interface (one into four goes out to divide at both ends) based on AWG chip of an embodiment of the present invention
WDM optical device PDL IL optical system for testing builds figure；
Fig. 4 shows the LAN_ of FA interface (one into four goes out in the same end) based on AWG chip of an embodiment of the present invention
WDM optical device PDL IL optical system for testing builds figure.
The same or similar appended drawing reference represents the same or similar component in attached drawing.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in figs. 2 to 4, the utility model provides a kind of LAN_WDM optical device detection device, comprising:
The four-wavelength laser of FC/PC interface；
First 4X1_CWDM wavelength division multiplexer 1 of FC/PC interface, the output of the four-wavelength laser of the FC/PC interface
End is connected to four input terminals of the first 4X1_CWDM wavelength division multiplexer 1；
The electric high-speed polarization module 2 of FC/PC interface, the output end connection of the first 4X1_CWDM wavelength division multiplexer 1
To the input terminal of the electric high-speed polarization module 2；
The output end of the 1X4_CWDM wavelength division multiplexer 3 of FC/PC interface, the electric high-speed polarization module 2 is connected to
The input terminal of 1X4_CWDM wavelength division multiplexer 3；
Four road 1X1 single mode photoswitches 4 of FC/PC interface, four output ends difference of the 1X4_CWDM wavelength division multiplexer 3
Connect the input terminal of the four roads 1X1 single mode photoswitch 4；
Connect respectively with the electric high-speed polarization module 2 and four road 1X1 single mode photoswitches 4 MCU (micro-control unit,
Microcontroller Unit)；
4 road single mode optical splitters 5 of FC/PC interface, 1X2,50:50, the output end of the four roads 1X1 single mode photoswitch 4
It is separately connected the input terminal of the 4 road single mode optical splitter 5, every road output end of the 4 road single mode optical splitter 5 is divided into two
Road forms the output end of totally 8 road FC/PC；Wherein, 50:50 indicates every road input optical power to be divided into two-way light output, two
The road road light output Zhong Mei exports the half for accounting for input optical power；
2nd 4X1_CWDM wavelength division multiplexer 6 of FC/PC interface, every road output end of the 4 road single mode optical splitter 5
It is wherein respectively connected to input terminal 6 all the way of the 2nd 4X1_CWDM wavelength division multiplexer all the way；
The flange port 7 of five road FC/PC interfaces, the output end of the 2nd 4X1_CWDM wavelength division multiplexer 6 are connected to wherein
The wherein another way of flange port 7 all the way, every road output end of the 4 road single mode optical splitter 5 is respectively connected to remaining four tunnel
Flange port 7；
PD detector 8.
Here, the utility model is used to detect the insertion loss and Polarization Dependent Loss of optic communication passive device LAN_WDM,
For the higher detection device of integrated level.The utility model can reduce cost, improve efficiency, and increase the scope of application, measured device
Main indicator be PDL under IL and four wavelength state under four wavelength states.The utility model is by functional unit used
System all is connected into, forms more power detecting systems, it is then creative to cancel four laser light sources and four Polarization Controllers.
Again creatively isolate a 2nd 4X1_CWDM wavelength division multiplexer 6 so that detection device not only low cost but also the more function of high efficiency
Energy.Detection efficiency is able to solve, the problems such as setup cost.
LAN_WDM units test based on AWG mainly includes the detection of MUX Yu two kinds of structures of DEMUX.MUX's and DEMUX
The main distinction: MUX device is the input composite wavelength list output of four wavelength, and DEMUX device is that single channel complex wave inputs 4 wavelength solutions
Multiple output.
In one embodiment of LAN_WDM optical device detection device of the utility model, the diameter of the PD detector is 5mm.
Here, this optical path uses a Φ 5mmPD.Due to the LAN_WDM structure spacing 100um rank of FA interface, spacing
It is very small, four common Φ 0.3mm detectors cannot be used.Because not only cost is excessively high for 4 common Φ 0.3mm detectors simultaneously,
Four channel powers of FA interface cannot directly be detected simultaneously, it is necessary to drawn respectively it is extremely inconvenient, with a Φ PD detector
4 road FA interfaces can be directly surveyed, as shown in figure 3, FA interface measured device is directly withstood on Φ PD detector, it is quite convenient.
As shown in Fig. 2, the application also provides a kind of LAN_WDM optical device detection method, using above-mentioned LAN_WDM optical device
Detection device, which comprises
Prepare four standard FC/PC optical fiber, one end of each standard FC/PC optical fiber is respectively connected to remaining four tunnel method
The other end of each standard FC/PC optical fiber is connected to connection PD detector 8 by blue mouth 7；
By the MCU, successively switch four road 1X1 single mode photoswitches 4, record current power reference value be respectively dBm1,
dBm2,dBm3,dBm4；
One end of each standard FC/PC optical fiber and the remaining four road flange port 7 are kept connecting, by each standard
The other end of FC/PC optical fiber is disconnected with the PD detector；
The other end of each standard FC/PC optical fiber is separately connected to four input terminals of LAN_WDM optical device, by LAN_
The output end of WDM optical device is connected to the PD detector；
By the MCU, successively switch four road 1X1 single mode photoswitches, record current power value be respectively dBm5, dBm6,
dBm7,dBm8；
The four road Insertion Loss for obtaining LAN_WDM are respectively dBm5-dBm1, dBm6-dBm2, dBm7-dBm3, dBm8-dBm4.
As shown in Fig. 2, showing that four tunnels of LAN_WDM are inserted in one embodiment of LAN_WDM optical device detection method of the application
After damage respectively dBm5-dBm1, dBm6-dBm2, dBm7-dBm3, dBm8-dBm4, further includes:
The MCU control electric high-speed polarization module 2 is run, and the MCU is switched to four road 1X1 single-mode optics by key and opens
Close the channel all the way in 4 four-way, measure this channel dBm_max (maximum value) and dBm_min (minimum value), dBm_max and
DBm_min subtracts each other the Polarization Dependent Loss that current channel can be obtained.
Specifically, the LAN_WDM device detection of FC_PC interface is as shown in Fig. 2, specific test philosophy is as follows:
Four into one go out the Insertion Loss IL detection method MUX (output of 4 tunnels and the input of 1 tunnel) of the LAN_WDM based on AWG:
One end of four standard FC/PC optical fiber is connected to four FC_PC flanges, 7 four road output end first, the other end according to
Secondary connection PD detector 8, successively switches four road 1X1 single mode photoswitches, record current power reference value be respectively dBm1, dBm2,
dBm3、dBm4。
Hereafter, successively by standard FC/PC optical fiber from the taking-up for being connected to PD detector 8, four for being connected to LAN_WDM are defeated
Enter end.The output end of LAN_WDM is connected to PD detector 8.Successively switch four road 1X1 single mode photoswitches at this time, records current function
Rate value is respectively dBm5, dBm6, dBm7, dBm8.At this time it can be concluded that tetra- road Insertion Loss of LAN_WDM be respectively dBm5-dBm1,
dBm6-dBm2、dBm7-dBm3、dBm8-dBm4。
One into four goes out the detection method DEMUX of the LAN_WDM Insertion Loss based on AWG:
The method goes out as detection with four into one.Device turns detection around.
The PDL of LAN_WDM is tested:
MCU controls the operation of electric high-speed polarization module, and MCU is switched to the four-way of four road 1X1 single mode photoswitches by key
Channel all the way in road, measures this channel dBm_max and dBm_min, subtracts each other the PDL that current channel can be obtained.
As shown in figure 3, in one embodiment of LAN_WDM optical device detection method of the application, the method, further includes:
One end of one article of standard FC/PC optical fiber is connected to the output end 6 of the 2nd 4X1_CWDM wavelength division multiplexer, the other end connects
Connect PD detector 8；
By the MCU, successively switch four road 1X1 single mode photoswitches 4, record current power reference value be respectively dBm1,
dBm2,dBm3,dBm4；
The output end of one end of the standard FC/PC optical fiber and the 2nd 4X1_CWDM wavelength division multiplexer 6 is kept connecting
It connects, the other end is disconnected with the PD detector 8；
The other end of the standard FC/PC optical fiber is connected to the input terminal of LAN_WDM optical device；
By the MCU, successively switch four road 1X1 single mode photoswitches, record current power value be respectively dBm5, dBm6,
dBm7,dBm8；
Show that tetra- road Insertion Loss of LAN_WDM is respectively dBm5-dBm1, dBm6-dBm2, dBm7-dBm3, dBm8-dBm4.
As shown in figure 3, showing that four tunnels of LAN_WDM are inserted in one embodiment of LAN_WDM optical device detection method of the application
After damage respectively dBm5-dBm1, dBm6-dBm2, dBm7-dBm3, dBm8-dBm4, further includes:
Electronic Polarization Controller operation is controlled by MCU, MCU is switched to the four roads 1X1 single mode photoswitch 4 by key
Four-way in channel all the way, measure this channel dBm_max and dBm_min, dBm_max and dBm_min, which are subtracted each other, to be obtained
To the Polarization Dependent Loss in this channel.
Specifically, one into four goes out to divide the LAN_WDM device detection in both ends composition FA interface as shown in Figure 3:
Due to the LAN_WDM structure spacing 100um rank of FA interface, spacing is very small, cannot use four common Φ 0.3mm
PD, it is as follows that this optical path using Φ 5mmPD detects specific test philosophy:
One end of one article of standard FC/PC optical fiber is connected to the output end of the 2nd 4X1_CWDM wavelength division multiplexer 6 first, it is another
End connection PD detector 8, successively switches four road 1X1 single mode photoswitches 4, record current power reference value be respectively dBm1, dBm2,
dBm3、dBm4。
Hereafter, after the standard FC/PC optical fiber being connected to the disconnection of PD detector 8, it is connected to the input of LAN_WDM
End.The output end of LAN_WDM is directly docked on PD detector 8.Successively switch four road 1X1 single mode photoswitches at this time, record is worked as
Preceding performance number is respectively dBm5, dBm6, dBm7, dBm8.At this time it can be concluded that tetra- road Insertion Loss of LAN_WDM be respectively dBm5-dBm1,
dBm6-dBm2、dBm7-dBm3、dBm8-dBm4。
The PDL of LAN_WDM is tested:
MCU controls electronic Polarization Controller operation, and MCU is switched to the four of the four roads 1X1 single mode photoswitch 4 by key
Channel all the way in channel, measures this channel dBm_max and dBm_min, subtracts each other the PDL that this channel can be obtained.
As shown in figure 4, in one embodiment of LAN_WDM optical device detection method of the application, further includes:
Prepare four standard FC/PC optical fiber, one end of each standard FC/PC optical fiber is respectively connected to remaining four tunnel method
The other end of each standard FC/PC optical fiber is connected to connection PD detector 8 by blue mouth 7；
By the MCU, successively switch four road 1X1 single mode photoswitches 4, record current power reference value be respectively dBm1,
dBm2,dBm3,dBm4；
One end of each standard FC/PC optical fiber and the remaining four road flange port 7 are kept connecting, by each standard
The other end of FC/PC optical fiber is disconnected with the PD detector；
By the other end of each standard FC/PC optical fiber be separately connected four of LAN_WDM optical device correspond to CH1, CH2,
CH3, CH4's connects product, and the end COM of LAN_WDM optical device is connected to the PD detector 8；
By the MCU, successively switch four road 1X1 single mode photoswitches, record current power value be respectively dBm5, dBm6,
dBm7,dBm8；
The four road Insertion Loss for obtaining LAN_WDM are respectively dBm5-dBm1, dBm6-dBm2, dBm7-dBm3, dBm8-dBm4.
As shown in figure 4, showing that four tunnels of LAN_WDM are inserted in one embodiment of LAN_WDM optical device detection method of the application
After damage respectively dBm5-dBm1, dBm6-dBm2, dBm7-dBm3, dBm8-dBm4, further includes:
The MCU control electric high-speed polarization module 2 is run, and the MCU is switched to four road 1X1 single-mode optics by key and opens
Close the channel all the way in 4 four-way, measure this channel dBm_max (maximum value) and dBm_min (minimum value), dBm_max and
DBm_min subtracts each other the Polarization Dependent Loss that current channel can be obtained.
Specifically, one into four goes out the LAN_WDM device detection in the same end composition FA interface as shown in figure 4, for such
Same section of five ports are respectively connected to five road FC_PC and drawn by the detection of device, wherein corresponding to CH1, CH2, CH3, CH4
Interface is connected to remaining four road flange port 7.The end COM is connected to 5MM detector, and specific detection method is as Fig. 2.
As shown in figure 4, being successively from left to right 1330nmFC_PC in the interface of five road FC_PC of LAN_WDM optical device
Interface, 1310nmFC_PC interface, 1290nm FC_PC interface, 1270nmFC_PC interface and COM end detector FC_PC interface.
CH1, CH2, CH3, CH4 respectively represent four wavelength of LAN_WDM optical device, and it is public that the end COM represents measured device
End.Specific CH1, CH2, CH3, CH4 represent the wavelength parameter which wavelength sees LAN_WDM optical device.
In conclusion the utility model has the advantages that
1. efficiency improves: 5 times.
2. cost reduces: 70%.
3. result is accurate: reducing plug error.
4. easy to operate: a key automatic detection.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are included in the utility model.It should not treat any reference in the claims as limiting
Related claim.Furthermore, it is to be understood that one word of " comprising " does not exclude other units or steps, odd number is not excluded for plural number.Device
The multiple units or device stated in claim can also be implemented through software or hardware by a unit or device.The
One, the second equal words are used to indicate names, and are not indicated any particular order.
Claims (2)
1. a kind of LAN_WDM optical device detection device, wherein the device includes:
The four-wavelength laser of FC/PC interface；
First 4X1_CWDM wavelength division multiplexer of FC/PC interface, the output end connection of the four-wavelength laser of the FC/PC interface
To four input terminals of the first 4X1_CWDM wavelength division multiplexer；
The electric high-speed polarization module of FC/PC interface, the output end of the first 4X1_CWDM wavelength division multiplexer are connected to described
The input terminal of electric high-speed polarization module；
The output end of the 1X4_CWDM wavelength division multiplexer of FC/PC interface, the electric high-speed polarization module is connected to 1X4_CWDM
The input terminal of wavelength division multiplexer；
Four road 1X1 single mode photoswitches of FC/PC interface, four output ends of the 1X4_CWDM wavelength division multiplexer are separately connected institute
State the input terminal of four road 1X1 single mode photoswitches；
The MCU being connect respectively with the electric high-speed polarization module and four road 1X1 single mode photoswitches；
The output end of 4 road single mode optical splitters of FC/PC interface, 1X2,50:50, the four roads 1X1 single mode photoswitch 4 connects respectively
Connect the input terminal of the 4 road single mode optical splitter, every road output end of the 4 road single mode optical splitter is divided into two-way, forms totally 8
The output end of road FC/PC；
2nd 4X1_CWDM wavelength division multiplexer of FC/PC interface, wherein the one of every road output end of the 4 road single mode optical splitter
Road is respectively connected to the input terminal all the way of the 2nd 4X1_CWDM wavelength division multiplexer；
The flange port of five road FC/PC interfaces, the output end of the 2nd 4X1_CWDM wavelength division multiplexer are connected to wherein method all the way
The wherein another way of blue mouth, every road output end of the 4 road single mode optical splitter is respectively connected to remaining four road flange port；
PD detector.
2. LAN_WDM optical device detection device according to claim 1, wherein the diameter of the PD detector is 5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821303062.XU CN208508947U (en) | 2018-08-13 | 2018-08-13 | LAN_WDM optical device detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821303062.XU CN208508947U (en) | 2018-08-13 | 2018-08-13 | LAN_WDM optical device detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809418A (en) * | 2018-08-13 | 2018-11-13 | 上海嘉慧光电子技术有限公司 | LAN_WDM optical devices detection device and method |
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2018
- 2018-08-13 CN CN201821303062.XU patent/CN208508947U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809418A (en) * | 2018-08-13 | 2018-11-13 | 上海嘉慧光电子技术有限公司 | LAN_WDM optical devices detection device and method |
| CN108809418B (en) * | 2018-08-13 | 2024-03-29 | 上海嘉慧光电子技术有限公司 | LAN_WDM optical device detecting device and method |
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