CN219420766U - Multi-station DWDM device optical communication test platform - Google Patents
Multi-station DWDM device optical communication test platform Download PDFInfo
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- CN219420766U CN219420766U CN202223563040.6U CN202223563040U CN219420766U CN 219420766 U CN219420766 U CN 219420766U CN 202223563040 U CN202223563040 U CN 202223563040U CN 219420766 U CN219420766 U CN 219420766U
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Abstract
The utility model discloses a multi-station DWDM device optical communication test platform which comprises a plurality of laser light sources, a photoelectric switch, a PLC splitter, a signal trigger, a test host, an optical power meter and a processor which are sequentially in communication connection, wherein each laser light source is connected with one end of the photoelectric switch through a synchronous line in parallel and used for switching back and forth among each laser light source. According to the testing platform disclosed by the utility model, a plurality of laser light sources are parallel, the synchronous line transmits the trigger signals of the light sources to the optical power meter, so that the scanning signals of the light sources can be captured in real time, each laser light source is provided with different wavelength range values, the free switching among the wavelength ranges can be carried out according to the needs, the trouble of manually switching the line and the probability of causing problems are reduced, and the light of the laser light source is equally divided on each station by arranging the branching unit, so that the multi-station shared light source is realized, the light source utilization rate can be maximized, and the cost is saved.
Description
Technical Field
The utility model relates to the technical field of optical communication testing, in particular to an optical communication testing platform for a multi-station DWDM device.
Background
In the traditional optical communication test, the test stations adopt different stations and systems for spot test and scanning, and the scanning stations generally adopt a set of adjustable light source, a scanning type polarization controller and a plurality of power meters for scanning test; the point measurement is generally configured with a single-point light source, a single-point polarization controller and a multi-channel power meter for single-point measurement; the traditional testing method requires related technicians to carry out manual station building through optical devices, so that the aim of testing optical communication parameters such as IL, RL, PDL and the like is fulfilled. The method has the advantages that the equipment utilization rate is low, a large amount of manpower and material resources are needed for supervision, and staff training and equipment input cost are greatly improved. In addition, the method has long testing time, especially when high and low temperature testing is carried out, each device needs to be independently waited for a period of time before a tester sits on a testing machine all the time, and when the number of devices is small, the method is still marginally applicable, but when mass production is carried out, the testing method is very low in efficiency.
Disclosure of Invention
In order to solve the technical problems, the utility model adopts the following technical scheme:
a multi-station DWDM device optical communication test platform comprises a laser light source, an optoelectronic switch, a PLC branching device, a signal trigger, a test host, an optical power meter and a processor which are sequentially connected in a communication way,
the laser light sources are arranged in parallel and connected with one end of the photoelectric switch through a synchronous line, and are used for switching back and forth between the laser light sources;
the other end of the photoelectric switch is connected with the PLC splitter and is used for equally dividing the light of the laser light source to a plurality of test stations;
the signal trigger is used for receiving the wavelength signal sent by the laser light source and transmitting the wavelength signal into the test host;
one output end of the PLC splitter is connected with the optical power meter through an optical fiber;
the processor is used for controlling and outputting different voltages, driving the laser light source to work, controlling and adjusting the wavelength of the laser light source, recording and testing out relevant data for detecting optical communication, and controlling the optical switch to switch optical signals.
As a preferable technical scheme:
the multi-station DWDM device optical communication test platform is characterized in that the laser light source is provided with a controller and a laser used for emitting laser, and the controller is in communication connection with the laser.
The multi-station DWDM device optical communication test platform is characterized in that the laser light source is a tunable laser, and the output wave band of the tunable laser is 1280-1680 nm wave band.
The plc splitter is a 1×16 splitter, and the multi-station DWDM device optical communication testing platform is described above.
The 1×16 splitter adopts a 1×16 uniform division coupler.
The optical communication test platform for the multi-station DWDM device further comprises an optical coupler and a polarization controller which are integrated in the same test optical path system.
The parameters of the optical communication test include IL (insertion loss), RIP (flatness), PDL (polarization sensitivity), DIR (directivity) and RL (return loss).
Compared with the prior art, the utility model has the beneficial effects that:
according to the testing platform, the plurality of laser light sources are parallel, the synchronous line transmits the triggering signals of the light sources to the optical power meter, the scanning signals of the light sources can be captured in real time, each laser light source is provided with different wavelength range values, free switching among the wavelength ranges can be carried out according to requirements, the trouble of manually switching the line and the probability of causing problems are reduced, and the splitter is arranged to equally divide the light of the laser light sources on each station, so that the multi-station shared light source is realized, the light source utilization rate can be maximized, and the cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an optical communication test platform according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples: as shown in fig. 1, the utility model provides a multi-station DWDM device optical communication test platform, which comprises a laser light source, a photoelectric switch, a PLC splitter, a signal trigger, a test host, an optical power meter and a processor which are sequentially in communication connection,
the laser light sources are connected with one end of the photoelectric switch through a synchronous line and used for switching back and forth among the laser light sources;
the other end of the photoelectric switch is connected with the PLC splitter and is used for equally dividing the light of the laser light source to a plurality of test stations;
the signal trigger is used for receiving the wavelength signal sent by the laser light source and transmitting the wavelength signal into the test host;
one output end of the PLC splitter is connected with the optical power meter through an optical fiber;
the processor is used for controlling and outputting different voltages, driving the laser light source to work, controlling and adjusting the wavelength of the laser light source, recording and testing out related data for detecting optical communication, and controlling the optical switch to switch optical signals.
The laser light source is provided with a controller and a laser used for emitting laser, and the controller is in communication connection with the laser.
The laser source is a tunable laser, and the output wave band of the tunable laser is 1280-1680 nm wave band.
The plc splitter is a 1 x 16 splitter.
The 1×16 splitter employs a 1×16 split coupler.
The optical coupler and the polarization controller are integrated in the same test light path system.
Parameters of the optical communication test include IL (insertion loss), RIP (flatness), PDL (polarization sensitivity), DIR (directivity), and RL (return loss).
The test parameters of the utility model mainly comprise: IL (insertion loss), RIP (flatness), PDL (polarization sensitivity), DIR (directivity), RL (return loss), and the like. In the test process, three or more tunable lasers are connected in and switched with a synchronous line and a light source line through a photoelectric switch, the synchronous line can transmit a trigger signal of the light source to the optical power meter, the scanning signal of the light source can be captured in real time, at least 3 tunable light sources are spliced together, the purpose that a program needs to use a tunable laser with a certain wavelength range and can be automatically switched to a corresponding wavelength can be achieved, the conflict is avoided, and the complexity of manual switching lines and the probability of a problem are reduced. The utility model integrates the light source line of the separated continuous adjustable light source and the light source line of the C-band ITU adjustable light source into an integrated DWDM device test platform host, can freely switch the parameters required by the test, such as test IL, PDL, inRL, outRL, DIR, and the like, in the test process, 3 test lines (1 COM line, 1 CH1 line and 1 CH2 line) are firstly butted together, the light path loss is cleared, the scanning return zero value and the single return zero value are automatically recorded in the clear, the test lines are sequentially connected with products after the clear is completed, one-key test can be performed, the tested data are stored into a processor MES system through a USB interface, and a plurality of computers share the same router through a network line. In addition, when the device is required to be tested for 3 temperatures, the device can be waited on line, the current temperature test can be automatically started after the temperature reaches the designated temperature, so that manual frequent wiring is omitted, the time for waiting for temperature rise and reduction of a plurality of stations is saved, and all data can be tested once according to the requirement through a multi-station DWDM device test platform. The equipment adopts a 5U volume chassis, a power switch, an optical path indicator lamp and an interface connected with a DUT (device under test), wherein the interfaces are FC/APC connectors. The indicator lamp is convenient to judge and analyze the working state of components in each device, and the interface can be used for externally connecting products. And the switching can be performed for different products. In the scanning function, the software develops a parallel scanning function, 16 stations can be used simultaneously by processing without interference, and more testing stations can be expanded at will subsequently. The utility model can integrate the optical switch, the optical coupler, the polarization controller, the testing host and the like which are needed to be used into one testing platform optical path, and then the optical switch is used for switching the optical path so as to select the corresponding optical path according to the testing parameters of the tested device DUT, and the internal switching is realized by the optical switch while the external wiring is not moved during the testing, so that the switching is very flexible, the testing personnel can realize testing a plurality of data only by one-time wiring, thereby improving the efficiency, having the characteristics of simple structure and low cost, and being compatible with the expansion of other external equipment.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. A multi-station DWDM device optical communication test platform is characterized in that: comprises a laser light source, a photoelectric switch, a plc branching unit, a signal trigger, a testing host, an optical power meter and a processor which are connected in turn in a communication way,
the laser light sources are arranged in parallel and connected with one end of the photoelectric switch through a synchronous line, and are used for switching back and forth between the laser light sources;
the other end of the photoelectric switch is connected with the plc branching device and is used for equally dividing the light of the laser light source to a plurality of test stations;
the signal trigger is used for receiving the wavelength signal sent by the laser light source and transmitting the wavelength signal into the test host;
one output end of the plc branching unit is connected with the optical power meter through an optical fiber;
the processor is used for controlling and outputting different voltages, driving the laser light source to work, controlling and adjusting the wavelength of the laser light source, recording and testing out related data for detecting optical communication, and controlling the photoelectric switch to switch optical signals.
2. A multi-station DWDM device optical communications test platform according to claim 1, wherein: the laser light source is provided with a controller and a laser used for emitting laser, and the controller is in communication connection with the laser.
3. A multi-station DWDM device optical communications test platform according to claim 2, wherein: the laser light source is a tunable laser, and the output wave band of the tunable laser is 1280-1680 nm wave band.
4. A multi-station DWDM device optical communications test platform according to claim 1, wherein: the plc splitter is a 1 x 16 splitter.
5. A multi-station DWDM device optical communications testing platform according to claim 4, wherein: the 1×16 splitter employs a 1×16 split coupler.
6. A multi-station DWDM device optical communications test platform according to claim 1, wherein: the optical coupler and the polarization controller are integrated in the same test light path system.
7. A multi-station DWDM device optical communications test platform according to claim 1, wherein: parameters of the optical communication test include insertion loss, flatness, polarization sensitivity, directivity, and return loss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223563040.6U CN219420766U (en) | 2022-12-30 | 2022-12-30 | Multi-station DWDM device optical communication test platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223563040.6U CN219420766U (en) | 2022-12-30 | 2022-12-30 | Multi-station DWDM device optical communication test platform |
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| Publication Number | Publication Date |
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| CN219420766U true CN219420766U (en) | 2023-07-25 |
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| CN202223563040.6U Active CN219420766U (en) | 2022-12-30 | 2022-12-30 | Multi-station DWDM device optical communication test platform |
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| CN (1) | CN219420766U (en) |
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