CN205079928U - Multifunctional testing device - Google Patents
Multifunctional testing device Download PDFInfo
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- CN205079928U CN205079928U CN201520842659.1U CN201520842659U CN205079928U CN 205079928 U CN205079928 U CN 205079928U CN 201520842659 U CN201520842659 U CN 201520842659U CN 205079928 U CN205079928 U CN 205079928U
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Abstract
The utility model discloses a multifunctional testing device, include: input module, light generation unit, optical attenuation unit, the 3rd optical branching module, second light power detection module, control module, display module generate laser signal according to the functional instruction that input module obtained with test parameter coordinated control light generation unit through control module to the functions such as reverberation performance number completion return loss value test of the incident light power sum second light power detection module that forms according to the optical attenuation unit. This multifunctional testing device has solved the problem that smooth module parameter test cost is high, operate the complicacy, has reached reduce cost, has oversimplified the effect of debugging operation, reduction test time and improvement efficiency of software testing.
Description
Technical field
The utility model relates to optical communication field, relates generally to a kind of multipurpose test system.
Background technology
Optical module is a photoelectric conversion module be made up of structural members such as optoelectronic device, functional circuit and optical interfaces.Optical module is mainly used in the transmitting-receiving of light signal, and light signal, by intelligent acess optical module, can transfer light signal to electric signal.Also the information of electric signal can be changed into light signal by optical module simultaneously, then be sent by optical fiber.
Optical module is a kind of high speed optoelectronic device, and two-forty sends and reception certainly exists complicated electromagnetic coupled and signal is assorted disturbs, and therefore, the performance parameter test of optical module is the important procedure of inspection finished product.The optical module assembled must carry out parameter testing to judge whether the function that can correctly realize presetting, and the performance test of module parameter is last procedure of finished product, is also the important evidence that can judge module become specification product.
On optical module production line, have many conventional testing apparatuss at present, as luminous power, attenuator and return loss test set, these equipment all only have standalone feature.Equipment is many, takes up space, complex operation, and cost is higher, and service efficiency is low, and debugging verification difficulty is large.Optical device is as the core component in optical module, and the test majority of optical module parameter concentrates on the test of optical device parameter.
Utility model content
In view of this, in order to overcome, optical module parameter testing cost in prior art is high, the problem of complicated operation, the utility model provides a kind of multipurpose test system, reduces costs, simplifies debugging operations, reduces the test duration and improve the effect of testing efficiency to reach.
In order to solve, optical device parameter testing cost is high, the problem of complicated operation, and multipurpose test system of the present utility model comprises:
Load module, obtain function command and test parameter, described function command informs the function that proving installation described in control module should perform, and described test parameter is inner parameter required when performing described function command;
Photogenerated unit, generates the laser signal for detecting;
Optical attenuation unit, carrying out to described laser signal the incident optical signal of formation for detecting of decaying, reading the performance number of described incident optical signal, and sending the performance number of described incident optical signal to control module;
3rd smooth shunt module, introduces tested optical device by described incident optical signal, and the reflected light signal formed by tested optical device end face reflection is introduced the second luminous power detection module;
Second luminous power detection module, reads the performance number of the reflected light signal formed by tested optical device end face reflection;
Control module, start described photogenerated unit according to described function command and test parameter and generate described laser signal, control described optical attenuation unit formed and read the performance number that the performance number of described incident optical signal and the second luminous power detection module read described reflected light signal, and calculate the return loss value of described tested optical device according to the performance number of described incident optical signal and the performance number of reflected light signal;
Display module, receives and shows the information come by described control module transmission.
Wherein, described photogenerated unit comprises the light emitting module of multiple different frequency, and control module selects the light emitting module of corresponding frequencies for generating described laser signal according to described test parameter.
Further, described optical attenuation unit comprises:
First smooth shunt module, introduces optical attenuation module by described laser signal;
Optical attenuation module, being carried out decaying by the laser signal introduced by described first smooth shunt module obtains the laser signal after decaying;
Second smooth shunt module, is divided into two-way by the laser signal after described decay, and light path is detected as incident optical power in a road, and a road is as the described incident optical signal for detecting;
First luminous power detection module, connects described incident optical power and detects light path, read the optical power value of described incident light.
Further, this multipurpose test system also comprises the 3rd luminous power detection module, and read the performance number transmitting the light signal of coming in from device outside, described performance number is sent to described display module by described control module and shows.
Wherein, described function command comprises: the return loss value test function of tested optical device, optical attenuation function, luminous power measuring ability;
When described function command is the return loss value test function of tested optical device, described test parameter is required laser signal frequency;
When described function command is optical attenuation function, described test parameter is the light output frequency after required laser signal frequency, decay;
When described function command is luminous power measuring ability, described test parameter is vacant.
Wherein, this device is also provided with:
Light output interface, to the outside output optical signal of device, is delivered to the common port of described 3rd smooth shunt module by described reflected light signal;
Light input interface, is sent to the 3rd luminous power detection module by the light signal of described device outside.
External light source connects light inlet, and for the laser signal of outer blaze module is sent to described optical attenuation unit, the light source as described photogenerated unit supplements.
Compared with prior art, advantage of the present utility model is: this device is by Integration Design, and the return loss value test function of tested optical device, optical attenuation function, luminous power measuring ability are integrated in a device, are worked by control module cooperation control.Device inside is provided with photogenerated unit, if internal light source can not meet can also input external light source use.A kind of multipurpose test system formed thus, reduces the testing cost of optical device, and function is strong, simple to operate, convenient test, and efficiency is high, and debugging is simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of multipurpose test system.
Embodiment
Below in conjunction with embodiment, the utility model is further described.
Multipurpose test system in Fig. 1 comprises: display module, load module, control module, photogenerated unit and optical attenuation unit, photogenerated unit comprises the first light emitting module and the second light emitting module, and optical attenuation unit comprises: the first smooth shunt module, optical attenuation module, the second smooth shunt module and the first luminous power detection module; This proving installation also comprises: the second luminous power detection module and the 3rd smooth shunt module and the 3rd luminous power detection module; Load module link control module, to the instruction of control module sending function and test parameter, function command informs the function that control module will perform, and test parameter is determined by pending function; Control module respectively with the first light emitting module and second light emitting module of photogenerated unit, the optical attenuation module of optical attenuation unit and the first luminous power detection module, and the second luminous power detection module, the 3rd luminous power detection module are electrically connected respectively, according to each module cooperating of function command cooperation control, select exectorial module according to test parameter; Display module is electrically connected with control module, the parameter information that display control module gets.First light emitting module of photogenerated unit is connected with not the sharing the same light of the first smooth shunt module of optical attenuation unit along separate routes with the light output end of the second light emitting module, the common port of the first smooth shunt module is connected with the light input end of optical attenuation module, the light output end of optical attenuation module is connected with the common port of the second smooth shunt module, two light of the second smooth shunt module are connected with a light of the first luminous power detection module and the 3rd smooth shunt module along separate routes respectively along separate routes, and another light of the 3rd smooth shunt module is connected with the light input end of the second luminous power detection module along separate routes.
Multipurpose test system in Fig. 1 is also provided with external interface: external light source connects light inlet, light output interface and light input interface, external light source connects the optical attenuation unit of light inlet connecting test device inside, be connected along separate routes with a light of the first smooth shunt module of optical attenuation unit, connect light inlet by external light source and the light source of external light source access device as photogenerated unit is supplemented; The common port of the 3rd smooth shunt module of light output interface connecting test device inside; 3rd luminous power detection module of light input interface connecting test device inside.
Load module in Fig. 1 can be keyboard or default select button, display module can adopt LCDs, control module can adopt single-chip microcomputer C8051F350, first luminous power detection module, the second luminous power detection module, the 3rd luminous power detection module can adopt light power meter, adopt C8051F350 with the A/D chip of 16, light is received by photosensitive tube, light is converted into electricity, after amplifying, output to Chip Microcomputer A/D mouth carry out adopting obtaining the intensity of bright dipping, simultaneously three luminous power detection modules work according to the respective wavelength of key-press input; First light emitting module and the second light emitting module adopt common laser light emitting light source, and the light emitting module of photogenerated unit is not limited to two, according to the kind demand of proving installation to light, can arrange the light emitting module of multiple different wave length; Optical attenuation module can adopt electric adjustable optical attenuator VOA, attenuator is the DAC output current by single-chip microcomputer, electric current is converted into voltage through sampling resistor, with the feedback foot control output voltage of this Control of Voltage boost chip LM2733, with the work of this Control of Voltage electricity adjustable optical attenuator, realize the decay to light; First, second, third smooth shunt module can adopt 1:1 optical branching device common on market.
Above-mentioned proving installation can be used for the return loss value of tested optical device end face, during use, by the light output interface of tested optical device coupling arrangement, in load module input or selection function instruction: test parameters such as the frequencies of the test of return loss value and photogenerated unit, the software program that control module is established in starting according to function command, and judge whether internal light source can satisfy condition according to test parameter, if can not meet, then reminded by display module and need external light source, corresponding external light source is accessed this proving installation, if meet, then start photogenerated unit, optical attenuation unit is started working, the light emitting module that can meet test parameter condition in selective light generation unit produces laser signal, light signal enters optical attenuation module by the common port of the first smooth shunt module, optical attenuation module is controlled to make it be in decay minimum state by control module, light signal enters the second smooth shunt module after optical attenuation module, light is divided into impartial two-way light by the second smooth shunt module, one tunnel enters in light power meter first luminous power detection module, record incident intensity, another road light enters the 3rd smooth shunt module, then from light output interface, light signal is transported to the end face of reception or utilizing emitted light device tested optical device, understand some light is returned the 3rd smooth shunt module common port by device end face reflection, reflected light is divided into impartial two-way light by the 3rd smooth shunt module, wherein a road enters in the second luminous power detection module, the incident optical power P1 that the reflected optical power P2 record the second luminous power detection module and the first luminous power detection module record is by formula :-10*lg(P2/P1) calculate the return loss value of optical device, P1 and P2 unit milliwatt, return loss result unit is dB.
Above-mentioned proving installation has optical attenuation unit, the function of attenuator must be had, load module is keyed in or selective light attenuation function, the Output optical power of the luminous power after the light source and optical wavelength and required decay needing decay and proving installation glazing output interface is set according to test parameter again, control module selects corresponding light source according to test parameter, automatic adjustment optical attenuation unit, the intensity exporting light is judged by the test of light power meter first luminous power detection module, until the Output optical power of light output interface stops regulating after reaching desired performance number, and by the display of optical attenuation result over the display, thus realize the function of optical attenuation.
Above-mentioned proving installation has the function that luminous power detects, tested optical device is connected light input interface, load module is keyed in or selective light power detection, control module starts the 3rd luminous power detection module, 3rd luminous power detection module reads the luminous power of access, and sending result to control module, optical power value is tested to obtain in the display of control module order display module.
More than describe preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple equivalents to the technical solution of the utility model, these equivalents all belong to protection domain of the present utility model.
Claims (6)
1. a multipurpose test system, is characterized in that, comprising:
Load module, obtain function command and test parameter, described function command informs the function that proving installation described in control module should perform, and described test parameter is inner parameter required when performing described function command;
Photogenerated unit, generates the laser signal for detecting;
Optical attenuation unit, carrying out to described laser signal the incident optical signal of formation for detecting of decaying, reading the performance number of described incident optical signal, and sending the performance number of described incident optical signal to control module;
3rd smooth shunt module, introduces tested optical device by described incident optical signal, and the reflected light signal formed by tested optical device end face reflection is introduced the second luminous power detection module;
Second luminous power detection module, reads the performance number of the reflected light signal formed by tested optical device end face reflection;
Control module, start described photogenerated unit according to described function command and test parameter and generate described laser signal, control described optical attenuation unit formed and read the performance number that the performance number of described incident optical signal and the second luminous power detection module read described reflected light signal, and calculate the return loss value of described tested optical device according to the performance number of described incident optical signal and the performance number of reflected light signal;
Display module, receives and shows the information come by described control module transmission.
2. multipurpose test system according to claim 1, is characterized in that, described photogenerated unit comprises the light emitting module of multiple different frequency, and control module selects the light emitting module of corresponding frequencies for generating described laser signal according to described test parameter.
3. multipurpose test system according to claim 1 and 2, is characterized in that, described optical attenuation unit comprises:
First smooth shunt module, introduces optical attenuation module by described laser signal;
Optical attenuation module, being carried out decaying by the laser signal introduced by described first smooth shunt module obtains the laser signal after decaying;
Second smooth shunt module, is divided into two-way by the laser signal after described decay, and light path is detected as incident optical power in a road, and a road is as the described incident optical signal for detecting;
First luminous power detection module, connects described incident optical power and detects light path, read the optical power value of described incident light.
4. multipurpose test system according to claim 3, it is characterized in that, this multipurpose test system also comprises the 3rd luminous power detection module, read the performance number transmitting the light signal of coming in from device outside, described performance number is sent to described display module by described control module and shows.
5. multipurpose test system according to claim 4, is characterized in that, described function command comprises: the return loss value test function of tested optical device, optical attenuation function, luminous power measuring ability;
When described function command is the return loss value test function of tested optical device, described test parameter is required laser signal frequency;
When described function command is optical attenuation function, described test parameter is the light output frequency after required laser signal frequency, decay;
When described function command is luminous power measuring ability, described test parameter is vacant.
6. multipurpose test system according to claim 4, is characterized in that, this device is also provided with:
Light output interface, to the outside output optical signal of device, is delivered to the common port of described 3rd smooth shunt module by described reflected light signal;
Light input interface, is sent to the 3rd luminous power detection module by the light signal of described device outside;
External light source connects light inlet, and for the laser signal of outer blaze module is sent to described optical attenuation unit, the light source as described photogenerated unit supplements.
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| CN201520842659.1U CN205079928U (en) | 2015-10-28 | 2015-10-28 | Multifunctional testing device |
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| CN201520842659.1U CN205079928U (en) | 2015-10-28 | 2015-10-28 | Multifunctional testing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841933A (en) * | 2016-05-27 | 2016-08-10 | 海信集团有限公司 | Optical element attenuation testing device |
| CN107782534A (en) * | 2017-09-30 | 2018-03-09 | 孝感华中精密仪器有限公司 | A kind of laser avoidance device low temperature detectivity test system |
-
2015
- 2015-10-28 CN CN201520842659.1U patent/CN205079928U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841933A (en) * | 2016-05-27 | 2016-08-10 | 海信集团有限公司 | Optical element attenuation testing device |
| CN105841933B (en) * | 2016-05-27 | 2018-09-18 | 海信集团有限公司 | Optical element attenuation test device |
| CN107782534A (en) * | 2017-09-30 | 2018-03-09 | 孝感华中精密仪器有限公司 | A kind of laser avoidance device low temperature detectivity test system |
| CN107782534B (en) * | 2017-09-30 | 2020-08-14 | 孝感华中精密仪器有限公司 | Low-temperature detection capability test system for laser alarm |
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