CN201898510U - Analyzing device for loss of passive component - Google Patents
Analyzing device for loss of passive component Download PDFInfo
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- CN201898510U CN201898510U CN201020658303XU CN201020658303U CN201898510U CN 201898510 U CN201898510 U CN 201898510U CN 201020658303X U CN201020658303X U CN 201020658303XU CN 201020658303 U CN201020658303 U CN 201020658303U CN 201898510 U CN201898510 U CN 201898510U
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Abstract
The utility model discloses an analyzing device for the loss of a passive component. The analyzing device comprises a multi-wavelength light source, a photoswitch, a polarization controller, a shunt, a return loss test module, an optical power meter module and a single chip unit, wherein the multi-wavelength light source is used for providing a multi-wavelength laser with stable power; the photoswitch is used for selecting one route of the multi-wavelength laser, wherein the route of the multi-wavelength laser is then output; the polarization controller is used for changing the polarization state of the laser; the shunt is provided with a first end, a second end and a third end; the return loss test module is used for measuring the power of the light reflected by the input end the passive component under test; the optical power meter module is used for measuring the power of the light of the output end the passive component under test; and the single chip unit is used for controlling the laser output of the multi-wavelength light source, the laser selection of the photoswitch and the change of the polarization controller on the laser polarization state, receiving the data measured by the return loss test module and the optical power meter module and processing the data. The analyzing device for the loss of the passive component is multifunctional equipment integrating a stable distributed feed back (DFB) light source, the optical power meter module, an insertion loss and return loss tester and a digital private line (DPL) tester.
Description
Technical field
The utility model relates to a kind of passive device loss analysis device, particularly relates to a kind of multichannel passive device loss analysis device.
Background technology
Because international copper raw material price sharp rises, and the optical fiber price-slashing, " the copper matting advances " is trend of the times.And traditional speech business has obtained abundant development, be difficult to have again growth, broadband access is the bright spot in fixed network operator's business, as if present ADSL also gone to the end to the excavation of bandwidth, and FTTH (Fiber To The Home, Fiber to the home) be to be hopeful to realize the integration of three networks most, produce new business growth point.The integration of three networks has begun enforcement by theory, and user's bandwidth demand drives the development of FTTH, and the development of FTTH provides good platform for new Network, and network information flow increases rapidly, promotes the great development of metropolitan area network and Access Network.For the FTTH network, the Passive Optical Components of its core is exactly a splitter, and it realizes that 1 * N from the local side to user connects.
In the test of traditional splitter is produced, mainly use the Insertion Loss tester, return loss test set of simple function and manually Polarization Controller come the dependent loss of testing passive device.For the splitter of multichannel passive device such as 1x64,2x64, the arrangement of the test of passage, record and data one by one, analysis of Uniformity etc. have expended a lot of manpowers and time, have influenced production efficiency greatly.Especially the measurement of Polarization Dependent Loss, each wavelength of each termination needed to test 10 seconds at least, did not comprise the time of plug termination, toggle lights and data record arrangement, and the test that the splitter of a 2x64 carries out three-wavelength will expend 1 hour.
How designing a kind of instrument that can these multichannel passive device losses of rapid analysis is the problem that the technical staff will solve.
The utility model content
The technical problems to be solved in the utility model is the defective that wastes time and energy when Insertion Loss, return loss and polarization loss for the tester function singleness that overcomes passive device in the prior art, test, and the passive device loss analysis device of a kind of integrated Insertion Loss test, return loss test and Polarization Controller is provided.
The utility model solves above-mentioned technical problem by following technical proposals:
A kind of passive device loss analysis device, its characteristics are that it comprises:
Multi wave length illuminating source is used to provide the laser of multi-wavelength's firm power;
Optical switch is used for selecting one tunnel output of multi-wavelength's laser;
Polarization Controller is used to change the polarization state of laser;
Splitter with first end, second end and the 3rd end;
The return loss test module is used to measure the luminous power of passive device input reflection to be measured;
The light power meter module is used to measure the luminous power of passive device output to be measured;
Single-chip microcomputer, the laser that is used to control laser output, the optical switch of multi wave length illuminating source is selected, Polarization Controller is to the change of laser polarization state and receive the return loss test module and data that the light power meter module records and these data are handled,
Wherein, the output of this multi wave length illuminating source is connected to the input of this optical switch, the output of this optical switch is connected to the input of this Polarization Controller, this Polarization Controller output links to each other with first end of this splitter, second end of this splitter links to each other with the input of return loss test module, the 3rd end of this splitter links to each other with the input of passive device to be measured, the input of this light power meter module links to each other with the output of this passive device to be measured, this single-chip microcomputer respectively with this multi wave length illuminating source, optical switch, Polarization Controller, splitter, return loss test module and light power meter module link to each other.Certainly, the above each module, parts provide power supply by power management module.
Preferably, this passive device loss analysis device also comprises the communication interface circuit that links to each other with this single-chip microcomputer, and this single-chip microcomputer is by this communication interface circuit and external device communication.Wherein, this optical switch is a high-speed optical switch.
Preferably, this multi wave length illuminating source is DFB light source (distributed feed back, a distributed feed-back).
Preferably, this multi wave length illuminating source output wavelength laser that is 1310nm and/or 1490nm and/or 1550nm.
Preferably, this return loss test module also comprises:
Long wavelength's detector is used for laser power signal is converted to current signal;
Pre-amplification circuit, the current signal that is used to receive from long wavelength's detector also is converted to voltage signal with this current signal amplification;
Analog to digital conversion circuit, the voltage signal that is used to receive from pre-amplification circuit also is converted to digital signal with this voltage signal,
Wherein, the output of this long wavelength's detector is connected to the input of this pre-amplification circuit, and the output of this pre-amplification circuit is connected to the input of this analog to digital conversion circuit.
Preferably, this light power meter module also comprises:
Long wavelength's detector is used for laser power signal is converted to current signal;
Pre-amplification circuit, the current signal that is used to receive from long wavelength's detector also is converted to voltage signal with this current signal amplification;
Analog to digital conversion circuit, the voltage signal that is used to receive from pre-amplification circuit also is converted to digital signal with this voltage signal,
Wherein, the output of this long wavelength's detector is connected to the input of this pre-amplification circuit, and the output of this pre-amplification circuit is connected to the input of this analog to digital conversion circuit.
Preferably, this light power meter module comprises a plurality of light power meters, and for example this light power meter module comprises 1-8 light power meter.
Preferably, this light power meter is the multichannel light power meter, and preferably, this light power meter is 4 passage light power meters.
Preferably, this passive device to be measured is the multichannel passive device.
Positive progressive effect of the present utility model is:
1, passive device loss analysis device performance described in the utility model is reliable and stable, be stable DFB light source, the light power meter module of collection, turn back to decrease tester, the DPL tester is the multifunctional equipment of one.Passive device loss analysis device described in the utility model can be exported the stabilized light source of 1310nm, 1490nm and 1550nm as light source; Can measure the power of the light of 850nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm wavelength as light power meter; As turning back to the corresponding loss that survey damage instrument and DPL tester (Polarization Dependent Loss tester) can be measured the Passive Optical Components of 1310nm, 1490nm and 1550nm.
2, passive device loss analysis device of the present utility model designs for open-ended modularity, can expand at most to 8 power test modules, promptly once can read the test data of 32 passages.
3, passive device loss analysis device of the present utility model upgrade software easily cooperates upper computer software that high test speed is arranged, and improves greatly and produces and testing efficiency.
Description of drawings
Fig. 1 is the structured flowchart of passive device loss analysis device of the present utility model.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
With reference to figure 1, passive device loss analysis device described in the utility model comprises: multi wave length illuminating source 2 is used to provide the laser of multi-wavelength's firm power; Optical switch 3 is used for selecting one tunnel output of multi-wavelength's laser; Polarization Controller 4 is used to change the polarization state of laser; Splitter 5 with first end 51, second end 52 and the 3rd end 53; Return loss test module 6 is used to measure the luminous power of passive device 9 inputs reflection to be measured; Light power meter module 7 is used to measure the luminous power of passive device 9 outputs to be measured; Single-chip microcomputer 1, the laser that is used to control laser output, the optical switch 3 of multi wave length illuminating source 2 is selected, the change of 4 pairs of laser polarization states of Polarization Controller and receive return loss test module 6 and data that light power meter module 7 records and these data are handled,
Wherein, the output of this multi wave length illuminating source 2 is connected to the input of this optical switch 3, the output of this optical switch 3 is connected to the input of this Polarization Controller 4, these Polarization Controller 4 outputs link to each other with first end 51 of this splitter 5, second end 52 of this splitter 5 links to each other with the input of return loss test module 6, the 3rd end 53 of this splitter 5 links to each other with the input of passive device 9 to be measured, the input of this light power meter module 7 links to each other with the output of this passive device 9 to be measured, this single-chip microcomputer 1 respectively with this multi wave length illuminating source 2, optical switch 3, Polarization Controller 4, splitter 5, return loss test module 6 and light power meter module 7 link to each other.
Specifically, adopt the 1x2 splitter in the utility model, this 1x2 splitter is in order to measure return loss, i.e. the luminous power of passive device input reflected back.This splitter divides an input and two outputs (promptly 51,52 and 53, because the invertibity of light path is misunderstood for unlikely, describe with first end, second end and the 3rd end in the utility model), only isolating between two outputs.Because light path is reversible,, export by the input (i.e. the 3rd end 53) of splitter through the laser of Polarization Controller so Polarization Controller is connected on the output (i.e. first end 51) of a splitter; And assign to two outputs (i.e. first end 51 and second end 52) of splitter behind the input (i.e. the 3rd end 53) of the light of passive device reflected back to be measured by splitter, the luminous power of reflected back is promptly measured in return loss.
Preferably, this passive device loss analysis device also comprises the communication interface circuit that links to each other with this single-chip microcomputer 1, and this single-chip microcomputer 1 is by this communication interface circuit and external device communication.Be example with USB communicating circuit 8 among Fig. 1, except using USB interface, can also adopt other known approaches that is fit to, for example serial line interface etc.External equipment can be PC, and the user can operate for example PC and by the communication interface circuit control single chip computer of external equipment.Certainly, the above each module, parts provide power supply by power management module.
Preferably, this multi wave length illuminating source is the DFB light source.Specifically, this multi wave length illuminating source output wavelength laser that is 1310nm and/or 1490nm and/or 1550nm.
More specifically, this return loss test module and this light power meter module also comprise:
Long wavelength's detector is used for laser power signal is converted to current signal; Pre-amplification circuit, the current signal that is used to receive from long wavelength's detector also is converted to voltage signal with this current signal amplification; Analog to digital conversion circuit, the voltage signal that is used to receive from pre-amplification circuit also is converted to digital signal with this voltage signal, wherein, the output of this long wavelength's detector is connected to the input of this pre-amplification circuit, and the output of this pre-amplification circuit is connected to the input of this analog to digital conversion circuit.
Preferably, this light power meter module comprises a plurality of light power meters, and for example this light power meter module comprises 1-8 light power meter.More preferably, this light power meter is the multichannel light power meter, and preferably, this light power meter is 4 passage light power meters.Especially, this passive device to be measured is the multichannel passive device.
From user perspective, be example below, sketch passive device loss analysis device described in the utility model with each existing module and multichannel passive device to be measured.
The user is after selecting automatic test pattern, the stable power of Distributed Feedback Laser output of the Single Chip Microcomputer (SCM) system control YSOD company that forms by the ARM LPC2148 of NXP company, and select the light source of corresponding wavelength one by one according to test process by high-speed optical switch, the laser of Distributed Feedback Laser output also can be by output again behind the controlled Polarization Controller, be connected on the extendible high-precision multichannel light power meter by multichannel Passive Optical Components to be measured, for example extend to 84 passage light power meters.Extendible high-precision multichannel light power meter and return loss test module are by YSPD long wavelength's detector of the big test surface of YSOD company, and the MAX4238 pre-amplification circuit of MAXIM company and the AD7799 analog to digital conversion circuit of AD company constitute.YSPD long wavelength's detector is converted to current signal with laser power signal, after amplifying and be converted to voltage signal by pre-amplification circuit MAX4238, voltage signal is converted to through analog to digital conversion circuit AD7799 and is input to single-chip microcomputer LPC2148 after the digital signal and handles.Turning back in the loss measurement of multichannel passive device, single-chip microcomputer is at host computer, for example under the control of PC, the luminous power that multichannel Passive Optical Components output passes through under the quick measurement respective wavelength and the echo power of input reflection, compare calculating through luminous power, obtain the insertion loss and the return loss of multichannel Passive Optical Components with the output of DFB multiple-wavelength laser.In the measurement of Polarization Dependent Loss (PDL), stable multi wave length illuminating source is connected on the extendible high-precision multichannel light power meter by multichannel Passive Optical Components through controlled Polarization Controller output.Polarization Controller constantly changes the polarization state of laser in the time of host computer appointment under the drive of the 103H7126 of SANYO company motor, motor is driven by the TB6560AHQ drive circuit of TOSHIBA company.In measurement, the variation that extendible high-precision multichannel light power meter can write down luminous power in the test process, and automatically calculate the Polarization Dependent Loss (PDL) of each passage of Passive Optical Components.
Single Chip Microcomputer (SCM) system also links to each other go forward side by side row communication and exchanges data by the USB communicating circuit SPCP25 of Sunplus with PC through USB interface.Except USB interface, those skilled in the art can select the information interaction between other interface circuits that are fit to realization single-chip microcomputers and the host computer according to actual needs.The test that the user can utilize upper computer software to be correlated with, and preserve data, can utilize the light output products report of printing function.Can control the software of using in the utility model of also can in time upgrading easily to system.
The utility model cooperates upper computer software that high test speed is arranged, and improves greatly and produces and testing efficiency.The same example that is measured as with Polarization Dependent Loss, the splitter of a 2x64 is only using 4 power test modules, when promptly once can read the test data of 16 passages, need altogether to measure 8 times, 16 optic fibre connectors plugged about 1 minute, 3 wavelength measurements of 16 passages (comprising the arrangement of toggle lights and data record) about 1 minute, so, when using passive device loss analysis device of the present utility model, only 8 minutes testing time, the also only 16 minutes time that adds the plug terminal.And in the test of traditional splitter was produced, the splitter of a 2x64 did not comprise the time of plug termination, toggle lights and data record arrangement, and the test of only carrying out three-wavelength will expend 1 hour.Passive device loss analysis device described in the utility model can be measured Insertion Loss, return loss and PDL simultaneously, has not only reduced Measuring Time and labour intensity, has also reduced the transfer of inter process, has greatly improved production efficiency.
Passive device loss analysis device of the present utility model is the ideal tools of optical communication fields such as multiple beam power measurement, multichannel loss measurement, long-term stable experiment in research, exploitation, production, maintenance, be particularly suitable for test such as AWG (American Wire Gauge, electric wire standard made in U.S.A) and Splitter 1xN, 2xN optical passive components such as (separators).
Though more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection range of the present utility model is limited by appended claims.Those skilled in the art can make numerous variations or modification to these execution modes under the prerequisite that does not deviate from principle of the present utility model and essence, but these changes and modification all fall into protection range of the present utility model.
Claims (9)
1. passive device loss analysis device is characterized in that it comprises:
Multi wave length illuminating source is used to provide the laser of multi-wavelength's firm power;
Optical switch is used for selecting one tunnel output of multi-wavelength's laser;
Polarization Controller is used to change the polarization state of laser;
Splitter with first end, second end and the 3rd end;
The return loss test module is used to measure the luminous power of passive device input reflection to be measured;
The light power meter module is used to measure the luminous power of passive device output to be measured;
Single-chip microcomputer, the laser that is used to control laser output, the optical switch of multi wave length illuminating source is selected, Polarization Controller is to the change of laser polarization state and receive the return loss test module and data that the light power meter module records and these data are handled,
Wherein, the output of this multi wave length illuminating source is connected to the input of this optical switch, the output of this optical switch is connected to the input of this Polarization Controller, this Polarization Controller output links to each other with first end of this splitter, second end of this splitter links to each other with the input of return loss test module, the 3rd end of this splitter links to each other with the input of passive device to be measured, the input of this light power meter module links to each other with the output of this passive device to be measured, this single-chip microcomputer respectively with this multi wave length illuminating source, optical switch, Polarization Controller, splitter, return loss test module and light power meter module link to each other.
2. passive device loss analysis device as claimed in claim 1 is characterized in that, this passive device loss analysis device also comprises the communication interface circuit that links to each other with this single-chip microcomputer, and this single-chip microcomputer is by this communication interface circuit and external device communication.
3. passive device loss analysis device as claimed in claim 1 is characterized in that this multi wave length illuminating source is the DFB light source.
4. passive device loss analysis device as claimed in claim 1 is characterized in that this multi wave length illuminating source output wavelength is the laser of 1310nm and/or 1490nm and/or 1550nm.
5. passive device loss analysis device as claimed in claim 1 is characterized in that, this return loss test module also comprises:
Long wavelength's detector is used for laser power signal is converted to current signal;
Pre-amplification circuit, the current signal that is used to receive from long wavelength's detector also is converted to voltage signal with this current signal amplification;
Analog to digital conversion circuit, the voltage signal that is used to receive from pre-amplification circuit also is converted to digital signal with this voltage signal,
Wherein, the output of this long wavelength's detector is connected to the input of this pre-amplification circuit, and the output of this pre-amplification circuit is connected to the input of this analog to digital conversion circuit.
6. passive device loss analysis device as claimed in claim 1 is characterized in that, this light power meter module also comprises:
Long wavelength's detector is used for laser power signal is converted to current signal;
Pre-amplification circuit, the current signal that is used to receive from long wavelength's detector also is converted to voltage signal with this current signal amplification;
Analog to digital conversion circuit, the voltage signal that is used to receive from pre-amplification circuit also is converted to digital signal with this voltage signal,
Wherein, the output of this long wavelength's detector is connected to the input of this pre-amplification circuit, and the output of this pre-amplification circuit is connected to the input of this analog to digital conversion circuit.
7. passive device loss analysis device as claimed in claim 1 is characterized in that this light power meter module comprises a plurality of light power meters.
8. passive device loss analysis device as claimed in claim 7 is characterized in that this light power meter is the multichannel light power meter.
9. as any described passive device loss analysis device among the claim 1-8, it is characterized in that this passive device to be measured is the multichannel passive device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020658303XU CN201898510U (en) | 2010-12-14 | 2010-12-14 | Analyzing device for loss of passive component |
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| CN201020658303XU CN201898510U (en) | 2010-12-14 | 2010-12-14 | Analyzing device for loss of passive component |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075242A (en) * | 2010-12-14 | 2011-05-25 | 上海光家仪器仪表有限公司 | Loss analysis device of passive device |
| CN102384840A (en) * | 2011-09-22 | 2012-03-21 | 上海光家仪器仪表有限公司 | System for testing jumper wire with MPO connector |
| CN102546012A (en) * | 2012-02-13 | 2012-07-04 | 中兴通讯股份有限公司 | Optical module test device and method |
| CN103630331A (en) * | 2012-08-27 | 2014-03-12 | 上海光之虹光电通讯设备有限公司 | Multichannel optical fiber insertion and return loss tester and test calibration method |
| CN103647600A (en) * | 2013-12-24 | 2014-03-19 | 武汉光迅科技股份有限公司 | Multi-channel intelligent optical testing device |
| CN104579457A (en) * | 2013-10-14 | 2015-04-29 | 上海光维通信技术股份有限公司 | Optical power testing device of PON (passive optical network) system |
| CN104601231A (en) * | 2015-01-09 | 2015-05-06 | 北京奥普维尔科技有限公司 | Test instrument, system and method |
| CN104601230A (en) * | 2015-01-09 | 2015-05-06 | 北京奥普维尔科技有限公司 | Wireless test instrument and test method thereof |
| CN108613795A (en) * | 2018-05-18 | 2018-10-02 | 苏州树云网络科技有限公司 | A kind of Polarization Dependent Loss monitoring system |
| CN112304571A (en) * | 2020-10-23 | 2021-02-02 | 长飞光纤光缆股份有限公司 | Multiplexing device and method for testing light source |
| WO2021185066A1 (en) * | 2020-03-18 | 2021-09-23 | 华为技术有限公司 | Method for calibrating insertion loss and related device |
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2010
- 2010-12-14 CN CN201020658303XU patent/CN201898510U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102075242A (en) * | 2010-12-14 | 2011-05-25 | 上海光家仪器仪表有限公司 | Loss analysis device of passive device |
| CN102384840A (en) * | 2011-09-22 | 2012-03-21 | 上海光家仪器仪表有限公司 | System for testing jumper wire with MPO connector |
| CN102384840B (en) * | 2011-09-22 | 2013-09-18 | 上海光家仪器仪表有限公司 | System for testing jumper wire with MPO connector |
| CN102546012A (en) * | 2012-02-13 | 2012-07-04 | 中兴通讯股份有限公司 | Optical module test device and method |
| CN103630331A (en) * | 2012-08-27 | 2014-03-12 | 上海光之虹光电通讯设备有限公司 | Multichannel optical fiber insertion and return loss tester and test calibration method |
| CN104579457A (en) * | 2013-10-14 | 2015-04-29 | 上海光维通信技术股份有限公司 | Optical power testing device of PON (passive optical network) system |
| CN103647600A (en) * | 2013-12-24 | 2014-03-19 | 武汉光迅科技股份有限公司 | Multi-channel intelligent optical testing device |
| CN103647600B (en) * | 2013-12-24 | 2015-12-30 | 武汉光迅科技股份有限公司 | A kind of multi-channel intelligent optical testing device |
| CN104601231A (en) * | 2015-01-09 | 2015-05-06 | 北京奥普维尔科技有限公司 | Test instrument, system and method |
| CN104601230A (en) * | 2015-01-09 | 2015-05-06 | 北京奥普维尔科技有限公司 | Wireless test instrument and test method thereof |
| CN104601231B (en) * | 2015-01-09 | 2018-06-08 | 北京奥普维尔科技有限公司 | A kind of test instrumentation, system and method |
| CN108613795A (en) * | 2018-05-18 | 2018-10-02 | 苏州树云网络科技有限公司 | A kind of Polarization Dependent Loss monitoring system |
| WO2021185066A1 (en) * | 2020-03-18 | 2021-09-23 | 华为技术有限公司 | Method for calibrating insertion loss and related device |
| CN112304571A (en) * | 2020-10-23 | 2021-02-02 | 长飞光纤光缆股份有限公司 | Multiplexing device and method for testing light source |
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