CN203166919U - Optical branching device automatic testing instrument - Google Patents

Optical branching device automatic testing instrument Download PDF

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Publication number
CN203166919U
CN203166919U CN 201320027794 CN201320027794U CN203166919U CN 203166919 U CN203166919 U CN 203166919U CN 201320027794 CN201320027794 CN 201320027794 CN 201320027794 U CN201320027794 U CN 201320027794U CN 203166919 U CN203166919 U CN 203166919U
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China
Prior art keywords
branching device
optical branching
optical
testing instrument
controller
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Withdrawn - After Issue
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CN 201320027794
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Chinese (zh)
Inventor
林祥忠
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SHANGHAI TRANSUNIQUE TECHNOLOGIES Co Ltd
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SHANGHAI TRANSUNIQUE TECHNOLOGIES Co Ltd
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Abstract

The utility model provides an optical branching device automatic testing instrument comprising a multi-wavelength light source, an optical branching device, a testing module, a controller, and a computer, wherein an input end of the optical branching device is connected with the multi-wavelength light source through optical fibers, an output end of the optical branching device is connected with an input end of the testing module through optical fibers, and the optical branching device is provided with a fiber clamp-equipped base seat. The testing module comprises a photoelectric detector and a stepping motor, wherein the photoelectric detector is a high speed sampling optical power meter, the photoelectric detector is provided with a baffle sheet which is provided with a groove, and that only output light of one passageway of the optical branching device can permeate at the same time is ensured through the groove. And the computer is connected with the testing module, the controller, and the multi-wavelength light source through communication, and the controller is used for controlling the testing module. Compared with the technology of the prior art, the optical branching device automatic testing system of the utility model is advantageous in that the test steps are simple, and test efficiency and test precision can be greatly improved.

Description

A kind of optical branching device auto testing instrument
Technical field
The utility model relates to a kind of optical branching device tester, relates in particular to a kind of optical branching device auto testing instrument.
Background technology
Along with the investment orientation of optical fiber communication by communication trunk, metropolitan area networks etc. develop to fiber-to-the-home direction, the demand of fiber-to-the-home core light device optical branching device also will constantly enlarge.Optical branching device is one of most important passive device in the optical fiber link, is the optical fiber tandem device with a plurality of inputs and a plurality of outputs.Optical branching device can be divided into two kinds of fused tapered (FBT) and planar waveguide-types (PLC) by principle.
At present, in the field tests of planar optical waveguide splitter, main product is the multichannel comprehensive tester, namely by 8 detectors, test the mode of 8 road PLC output simultaneously and carry out the PLC test, this testing scheme is integrated light source, optical switch module, Polarization Controller and 8 passage light power meters, can insert loss to the PLC device, Polarization Dependent Loss, uniformity, indexs such as supplementary load loss are tested, but because it uses 8 detectors, so unavoidably introduced interchannel drift and deviation, use the mechanical type Polarization Controller, the Polarization Dependent Loss test speed is slow and accuracy is low (the three-wavelength test is about 30 seconds), owing to need carry out rezero operation, inefficiency respectively to 8 passages, need each port of PLC device output end is carried out fiber stripping, and use naked fine clamper, and complex operation, it is big to introduce error, and test poor repeatability, be with fine fusion techniques though there is producer to provide, yet be with fine heat sealing machine price very expensive, cost performance is not high; Tradition 8 lane testing system testing flow processs as shown in Figure 1.Therefore, current planar optical waveguide splitter test has become a lot of manufacturer's production capacity bottlenecks, though there are a lot of producers that multichannel PLC can be provided testing equipment on the market, operating procedure is various, and testing efficiency is too low, the not high and less stable of measuring accuracy.
Summary of the invention
The purpose of this utility model is low in order to solve multi-channel analyzer testing efficiency of the prior art, and the problem of the lower and less stable of measuring accuracy provides a kind of auto testing instrument of optical branching device to solve the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of optical branching device auto testing instrument, it is characterized in that, comprise multi wave length illuminating source, optical branching device, test module, controller and computer, the input of described optical branching device is connected with multi wave length illuminating source optical fiber, and the output of optical branching device is connected with the input end fiber of test module; Described optical branching device is provided with the fine folder of band base; Described test module comprises photodetector, stepping motor, described photodetector is the high-speed sampling light power meter, photodetector is provided with a catch, and this catch is provided with a groove, and this groove makes synchronization that the output light transmission of a passage of optical branching device only be arranged; Described computer is provided with communication with test module, controller, multi wave length illuminating source and is connected; Described controller is used for the control test module.
The width of described groove is 100 ± 25um.
Described test module also comprises motorized precision translation stage, and this motorized precision translation stage is used for the moving photoconductor detector.
The fine folder of described band base below is provided with manual platform, and described manual platform is used for the distance of fine setting optical branching device output and photodetector.
Described high-speed sampling light power meter sampling rate is 50K/S, and the polarization module produced 10000 polarization states on the inherent poincare sphere in one second.
The method of testing of described optical branching device auto testing instrument comprises the steps:
1) connect the input of optical branching device: put into after the light source output is clipped with fibre clip behind the clamp base build-in test reference light will branch light path device input and the output welding of light source;
2) connect the output of optical branching device: the output ribbon fiber is added divest coating after holding, the ribbon fiber end face is cut kept flat in the clamp base;
3) test: after adjusting the distance of fiber end face, the hit testing instrument begins, and finishes test automatically.Described test parameter comprises insertion loss, return loss, Polarization Dependent Loss, directivity, uniformity.
Compared with prior art, optical branching device Auto-Test System of the present utility model, testing procedure is simple, can significantly improve testing efficiency and measuring accuracy.Eliminated the defective of troublesome operation when interchannel drift and measurement deviation and reference value are made zero in the multiple channel test scheme.In connecting the output step, not have and be with fine welding failure repeating step, IL and the PDL loss introduced when not having with fine welding reduce extraneous coupling error, need not to use to be with fine heat sealing machine, reduce equipment cost.Adopt high speed polarization module, poincare sphere coverage rate height, test value is more accurate.Adopt the test macro of independent development, can realize with no paper storage the fully, have functions such as automatic generation test report, automatic classification.The utility model comprises planar waveguide-type optical branching device, fused tapered optical branching device applicable to the product test of dissimilar optical branching devices.
Description of drawings
Fig. 1 is traditional 8 lane testing system testing schematic flow sheets;
Fig. 2 is the structural representation of the auto testing instrument of the utility model optical branching device;
Fig. 3 is the slit schematic diagram on the utility model light power meter front end catch;
Fig. 4 is the utility model optical branching device output ribbon fiber structural representation;
Fig. 5 is the utility model test module schematic diagram.
Embodiment
Further understand and understanding for making architectural feature of the present utility model and the effect reached had, cooperate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows:
Referring to Fig. 1 to Fig. 5, as shown in the figure, a kind of optical branching device auto testing instrument, comprise multi wave length illuminating source 1, optical branching device 2, test module 3, controller 4 and computer 5, the input of described optical branching device is connected with multi wave length illuminating source optical fiber, and the output of optical branching device is connected with the input end fiber of test module; Described computer is provided with communication with test module, controller, multi wave length illuminating source and is connected; Described controller is used for the control test module.
Described multi wave length illuminating source 1 can be according to client's needs, and built-in different wavelength for example, can use this four glistening lights of waves source, and wavelength value is respectively 1030,1490, and 1550,1625.Multi wave length illuminating source is provided with communication with computer and is connected, the data-signal that can receiving computer sends, and carry out wavelength automatically and switch.
Described optical branching device 2 is provided with the fine folder of band base 21, and the fine folder of band base 21 belows are provided with manual platform 22, and described manual platform is used for the distance of fine setting optical branching device output and photodetector, makes photodetector receive the light source of output as far as possible fully.
Described test module 3 comprises photodetector 31, stepping motor 32, and described photodetector is the high-speed sampling light power meter, and high-speed sampling light power meter sampling rate can reach 50K/S, and the polarization module produced 10000 polarization states in poincare sphere in one second.Photodetector is provided with a catch, and this catch is provided with a groove, and this groove makes synchronization that the output light transmission of a passage of optical branching device only be arranged, and this groove is that width is the slit of 100 ± 25um, the width of preferred groove be 100um(as shown in Figure 3); At stepping motor the dull and stereotyped motorized precision translation stage 33 that forms is set, described motorized precision translation stage 33 is used for the moving photoconductor detector.
Described controller 4 is controllor for step-by-step motor, is used for driving stepping motor, thus the moving photoconductor detector.
Described computer 5 is used for record test data, processing test data, feedback data information (optical wavelength is switched feedback).
Operation principle of the present utility model is: light source is exported from the optical branching device output, the high-speed sampling light power meter carries out the luminous power sampling to the output light of a passage of optical branching device, computer records the luminous power data that the high-speed sampling light power meter transmits automatically, controller receives computer feedback data information, controller drives stepping motor drive high-speed sampling light power meter and moves, the high-speed sampling light power meter continues output light is carried out the luminous power sampling, so carry out the luminous power sampling to output light repeatedly, the optical power loss value of computer automatic analysis minimum.After the output light of all passages of optical branching device streaks from the detection slit of high-speed sampling light power meter fully, finish the test of a wavelength, to multi wave length illuminating source, multi wave length illuminating source carries out wavelength and switches computer automatically, carries out the test of different optical wavelength with feedback information.
Using method of the present utility model comprises the steps:
1, put into clamp base after the light source output is clipped with fibre clip, adjust fiber end face apart from slit 0-10mm with knob, preferred 1mm carries out the reference light setting.
2, the input of optical branching device and the output line of light source are welding together with optical fiber splicer, do not need to carry out consolidation process.
3, output band fine adding with the fine folder of band put into heat-peeling forceps after holding, coat is divested 3cm, with the optical fiber cutter ribbon fiber end face is cut and put into clamp base after putting down, after the distance of adjustment fiber end face, hit testing begins.
4, test is carried out automatically, and after test finished, computer can record insertion loss, return loss, Polarization Dependent Loss, directivity, the uniformity of this optical branching device automatically, and it is generated test report automatically.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and the specification is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in the claimed scope of the present utility model.The protection range that the utility model requires is defined by appending claims and equivalent thereof.

Claims (5)

1. optical branching device auto testing instrument, it is characterized in that, comprise multi wave length illuminating source (1), optical branching device (2), test module (3), controller (4) and computer (5), the input of described optical branching device is connected with multi wave length illuminating source optical fiber, and the output of optical branching device is connected with the input end fiber of test module; Described optical branching device is provided with the fine folder of band base (21); Described test module comprises photodetector (31), stepping motor (32), described photodetector is the high-speed sampling light power meter, photodetector is provided with a catch, and this catch is provided with a groove, and this groove makes synchronization that the output light transmission of a passage of optical branching device only be arranged; Described computer is provided with communication with test module, controller, multi wave length illuminating source and is connected; Described controller is used for the control test module.
2. optical branching device auto testing instrument according to claim 1 is characterized in that, described groove is that width is the slit of 100 ± 25um.
3. optical branching device auto testing instrument according to claim 1 is characterized in that, the dull and stereotyped motorized precision translation stage (33) that forms is set on the described stepping motor, and motorized precision translation stage is used for the moving photoconductor detector.
4. optical branching device auto testing instrument according to claim 1 is characterized in that, described band fine folder base (21) below is provided with manual platform (22), and described manual platform is used for the distance of fine setting optical branching device output and photodetector.
5. optical branching device auto testing instrument according to claim 1 is characterized in that, described high-speed sampling light power meter sampling rate is 50K/S, and the polarization module produced 10000 polarization states on the inherent poincare sphere in one second.
CN 201320027794 2013-01-18 2013-01-18 Optical branching device automatic testing instrument Withdrawn - After Issue CN203166919U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN 201320027794 CN203166919U (en) 2013-01-18 2013-01-18 Optical branching device automatic testing instrument

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103152096A (en) * 2013-01-18 2013-06-12 上海全友通信技术有限公司 Automatic tester of optical splitter and testing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103152096A (en) * 2013-01-18 2013-06-12 上海全友通信技术有限公司 Automatic tester of optical splitter and testing method thereof
CN103152096B (en) * 2013-01-18 2015-09-02 上海全友通信技术有限公司 A kind of optical branching device auto testing instrument and method of testing thereof

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