CN204615830U - Luminous power testing apparatus - Google Patents
Luminous power testing apparatus Download PDFInfo
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- CN204615830U CN204615830U CN201520363220.0U CN201520363220U CN204615830U CN 204615830 U CN204615830 U CN 204615830U CN 201520363220 U CN201520363220 U CN 201520363220U CN 204615830 U CN204615830 U CN 204615830U
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- luminous power
- laser
- testing apparatus
- branching device
- optical branching
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Abstract
The utility model provides a kind of luminous power testing apparatus, described luminous power testing apparatus comprises fused biconical taper optical branching device, luminous power change-over circuit and some photodetectors, fused biconical taper optical branching device comprises input and some outputs, and each output correspondence connects a photodetector; Input is used for laser transmission to fused biconical taper optical branching device, laser is assigned to each output by coupling by fused biconical taper optical branching device, the laser assigned to is transferred to corresponding photodetector by output respectively, photodetector produces corresponding photoelectric current and photoelectric current is transferred to luminous power change-over circuit, and luminous power change-over circuit is for exporting the optical power value of the laser of described input.The utility model, without the need to specifying the light source of particular vendors, does not need tester to arrive test two ends yet, just can identify the laser of different wave length quickly and easily and the power level of measuring optical fiber inner laser.
Description
Technical field
The utility model relates to a kind of luminous power testing apparatus.
Background technology
PON (Passive Optical Network, EPON) technology is a kind of point-to-multipoint intelligent acess technology.Advantage very important in PON system is that simple optical fiber can transmit the signal of different wave length, more effectively can utilize fiber optic network like this.But the decay of the laser of different wave length under same system and loss are different, so, in the construction of PON system, need measuring fiber circuit to the active loss of different wave length laser.The detector used due to light power meter all can produce corresponding photoelectric current, so cannot be distinguished by the size of luminous power and judge for the laser of the different wave length used in all transfer of data.
Generally for the fibre loss of test different wave length, there are two kinds of methods, a kind of is the tester being coordinated optical fiber two ends by communication tool, the test wavelength of switched laser wavelength and corresponding light power meter simultaneously, to reach the test purpose of corresponding loss, but in the PON system of reality, optical fiber two ends may at a distance of dozens of kilometres, and test two ends all need tester, therefore adopt such Method compare time-consuming; Another kind is by loading corresponding modulating wave at the light source of optical fiber one end, at the optical fiber other end by identifying that modulating wave identifies different wavelength, to reach the test purpose of corresponding loss, but adopt and determine light source and light power meter in such a way and just must can reach the convenient effect identified in the buying of same producer.Therefore, really can identify the light power meter of optical maser wavelength, construction and the test of fibre circuit can be greatly facilitated.
Utility model content
The technical problems to be solved in the utility model is the laser being inconvenient to identify different wave length in order to overcome in prior art, and causing cannot the defect of its luminous power of Measurement accuracy, provides a kind of luminous power testing apparatus.
The utility model solves above-mentioned technical problem by following technical proposals:
A kind of luminous power testing apparatus, described luminous power testing apparatus comprises a fused biconical taper optical branching device, a luminous power change-over circuit and some photodetectors, described fused biconical taper optical branching device comprises an input and some outputs, and described in each, output correspondence connects a described photodetector.
Described input is used for laser transmission to described fused biconical taper optical branching device, laser is assigned to output described in each by coupling by described fused biconical taper optical branching device, the laser assigned to is transferred to corresponding described photodetector by described output respectively, described photodetector produces corresponding photoelectric current and photoelectric current is transferred to described luminous power change-over circuit, and described luminous power change-over circuit is for exporting the optical power value of the laser of described input.
Preferably, described fused biconical taper optical branching device comprises 2 outputs.
Preferably, the splitting ratio of described fused biconical taper optical branching device is 50:50, and namely the laser of 50% flows into the output of described fused biconical taper optical branching device, and the laser of 50% flows into another output of described fused biconical taper optical branching device.
Preferably, described input is connected with an optical fiber collimator, and described optical fiber collimator is used for the input laser coupled in optical fiber being entered into described fused biconical taper optical branching device.
Preferably, all described photodetectors are connected with an amplification treatment circuit, and described amplification treatment circuit is connected with an analog to digital conversion circuit, and described luminous power change-over circuit is connected with analog-digital conversion circuit as described.
Preferably, described luminous power change-over circuit is connected with a communicating circuit, described communicating circuit is for providing data interaction condition and the pipeline of described luminous power change-over circuit and computer, panel computer, mobile phone or other equipment, described communicating circuit can use serial communication circuit, USB (Universal Serial Bus, USB), bluetooth, Wi-Fi (Wireless-Fidelity, Wireless Fidelity), the multiple choices scheme such as LAN (Local AreaNetwork, local area network (LAN)).
Preferably, described luminous power testing apparatus comprises a power module, described power module is connected with described amplification treatment circuit, analog-digital conversion circuit as described, described luminous power change-over circuit, described communicating circuit respectively, and described power module is used for providing energy support to other modular circuits.
Positive progressive effect of the present utility model is:
Described luminous power testing apparatus can realize the laser automatically identifying different wave length, and can the power level of simultaneously Measurement accuracy optical fiber inner laser.Described luminous power testing apparatus, without the need to specifying the light source of particular vendors, does not need tester to arrive test two ends yet, just can identify the laser of different wave length quickly and easily and the power level of measuring optical fiber inner laser.
Accompanying drawing explanation
Fig. 1 is the structural representation of the luminous power testing apparatus of the utility model one preferred embodiment.
Embodiment
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the utility model to be described.
Shown in figure 1, the luminous power testing apparatus of the utility model one preferred embodiment mainly comprises fused biconical taper optical branching device 2, luminous power change-over circuit 7, photodetector 3 and photodetector 4, described fused biconical taper optical branching device 2 comprises input 21, output 22 and output 23, described output 22 correspondence connects described photodetector 3, described output 23 correspondence connects described photodetector 4, the splitting ratio of described fused biconical taper optical branching device 2 is 50:50, namely the laser of 50% flows into the output 22 of described fused biconical taper optical branching device 2, the laser of 50% flows into the output 23 of described fused biconical taper optical branching device 2, described input 21 is connected with optical fiber collimator 1, and described optical fiber collimator 1 is for entering into the input 21 of described fused biconical taper optical branching device 2 by the laser coupled in optical fiber, described photodetector 3 is connected with amplification treatment circuit 5 with described photodetector 4, described amplification treatment circuit 5 is connected with analog to digital conversion circuit 6, described luminous power change-over circuit 7 is connected with analog-digital conversion circuit as described 6, described amplification treatment circuit 5 carries out for the photoelectric current produced described photodetector 3 and described photodetector 4 amplifications and processes, and analog-digital conversion circuit as described 6 is for being digital signal by the analog-signal transitions after described photoelectric current amplification, described luminous power change-over circuit 7 is connected with communicating circuit 9, described communicating circuit 9 is for providing data interaction condition and the pipeline of described luminous power change-over circuit 7 and computer, panel computer, mobile phone or other equipment, described communicating circuit 9 uses serial communication circuit, also can have the multiple choices scheme such as USB, bluetooth, Wi-Fi, LAN, described luminous power testing apparatus comprises a power module 8, described power module 8 is connected with described amplification treatment circuit 5, analog-digital conversion circuit as described 6, described luminous power change-over circuit 7, described communicating circuit 9 respectively, and described power module 8 provides energy support for giving other modular circuits.
The laser that Optical Fiber Transmission is come is coupled into the input 21 being mapped to fused biconical taper optical branching device 2 by optical fiber collimator 1, laser enters into fused biconical taper optical branching device 2 by input 21, laser is carried out light splitting by splitting ratio by fused biconical taper optical branching device 2, and output to output 22 and output 23 respectively, the laser correspondence assigned to is transferred to photodetector 3 by output 22, the laser correspondence assigned to is transferred to photodetector 4 by output 23, photodetector 3 and photodetector 4 produce corresponding photoelectric current, and two-way photoelectric current is transferred to amplification treatment circuit 5, amplification treatment circuit 5 carries out amplification process respectively to the two-way photoelectric current received and transfers signals to analog to digital conversion circuit 6 again, analog to digital conversion circuit 6 is digital signal the analog-signal transitions received, and by digital data transmission to luminous power change-over circuit 7, the laser of digital signal identification different wave length of luminous power change-over circuit 7 by receiving, and the optical power value of laser for I/O 21.
Although the foregoing describe embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection range of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection range of the present utility model.
Claims (7)
1. a luminous power testing apparatus, it is characterized in that, described luminous power testing apparatus comprises a fused biconical taper optical branching device, a luminous power change-over circuit and some photodetectors, described fused biconical taper optical branching device comprises an input and some outputs, and described in each, output correspondence connects a described photodetector;
Described input is used for laser transmission to described fused biconical taper optical branching device, laser is assigned to output described in each by coupling by described fused biconical taper optical branching device, the laser assigned to is transferred to corresponding described photodetector by described output respectively, described photodetector produces corresponding photoelectric current and photoelectric current is transferred to described luminous power change-over circuit, and described luminous power change-over circuit is for exporting the optical power value of the laser of described input.
2. luminous power testing apparatus as claimed in claim 1, it is characterized in that, described fused biconical taper optical branching device comprises 2 outputs.
3. luminous power testing apparatus as claimed in claim 2, it is characterized in that, the splitting ratio of described fused biconical taper optical branching device is 50:50.
4. luminous power testing apparatus as claimed in claim 1, it is characterized in that, described input is connected with an optical fiber collimator.
5. luminous power testing apparatus as claimed in claim 1, it is characterized in that, all described photodetectors are connected with an amplification treatment circuit, and described amplification treatment circuit is connected with an analog to digital conversion circuit, and described luminous power change-over circuit is connected with analog-digital conversion circuit as described.
6. luminous power testing apparatus as claimed in claim 5, it is characterized in that, described luminous power change-over circuit is connected with a communicating circuit.
7. luminous power testing apparatus as claimed in claim 6, it is characterized in that, described luminous power testing apparatus comprises a power module, and described power module is connected with described amplification treatment circuit, analog-digital conversion circuit as described, described luminous power change-over circuit, described communicating circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363220.0U CN204615830U (en) | 2015-05-29 | 2015-05-29 | Luminous power testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363220.0U CN204615830U (en) | 2015-05-29 | 2015-05-29 | Luminous power testing apparatus |
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| Publication Number | Publication Date |
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| CN204615830U true CN204615830U (en) | 2015-09-02 |
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| CN201520363220.0U Active CN204615830U (en) | 2015-05-29 | 2015-05-29 | Luminous power testing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112596164A (en) * | 2021-01-15 | 2021-04-02 | 山东锐峰光电科技有限公司 | Novel optical fiber fused tapering machine and using method thereof |
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2015
- 2015-05-29 CN CN201520363220.0U patent/CN204615830U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112596164A (en) * | 2021-01-15 | 2021-04-02 | 山东锐峰光电科技有限公司 | Novel optical fiber fused tapering machine and using method thereof |
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