CN102798513A - Device and method for testing PLC (Programmable Logic Controller) optical splitter - Google Patents
Device and method for testing PLC (Programmable Logic Controller) optical splitter Download PDFInfo
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- CN102798513A CN102798513A CN2012102905752A CN201210290575A CN102798513A CN 102798513 A CN102798513 A CN 102798513A CN 2012102905752 A CN2012102905752 A CN 2012102905752A CN 201210290575 A CN201210290575 A CN 201210290575A CN 102798513 A CN102798513 A CN 102798513A
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Abstract
The invention relates to a device and method for testing a PLC (Programmable Logic Controller) optical splitter. The device comprises a sample holder, an input end FA, a receiving-end device, an optical switch, an LED (Light-Emitting Diode) white light source, a broadband infrared light source and a computer, wherein the input end FA is arranged in front of the sample holder while the receiving-end device is arranged behind the sampler holder; the outputs of the LED white light source and the broadband infrared light source are connected in parallel to the optical switch through optical fibers; and the computer is respectively connected with the LED white light source, the broadband infrared light source, the optical switch and the receiving-end device. During the test, the method for testing the PLC optical splitter comprises a first step of pre-aligning and aligning the input end to the input port of the PLC by utilizing the white light source, and a second step of adjusting the receiving end to enable the receiving end to be aligned to the output end of the PLC and then testing insertion consumption. Compared with the prior art, the device and method for testing the PLC optical splitter, disclosed by the invention, have the advantages of high testing efficiency and the like.
Description
Technical field
The invention belongs to the integrated optics field, relate in particular to a kind of method of testing of PLC optical branching device, in order to improve the work efficiency of enterprise.
Background technology
Along with popularizing of FTTH, the demand of PLC optical branching device is increasing.PLC optical branching device technical indicator is excellent, and device volume is little, and the divided channel of individual devices is many, can reach 128 the tunnel.All draw tapered shunt that overwhelming advantage is arranged in large-scale production with using than optical fiber.
But the PLC device detection of hyperchannel number is very loaded down with trivial details, improves the testing efficiency of hyperchannel shunt, is the problem that has very big meaning on the practical applications.
Existing hyperchannel multiband test macro, the input end of PLC utilize photoswitch to realize multiband selection input, and the output termination multi-channel power meter of PLC shows the luminous power that records in real time.As long as aim at fiber array with the input and output of PLC, can test the multiwave loss value of full tunnel like this.
The most time consuming step of this method with the aiming at and coupling of fiber array and PLC, need manually regulate.Because waveguide is small-sized, have only micron dimension, the enlargement ratio of common camera is limited, is difficult to observe the clear coupling of whether aiming at fully.Way feasible on the engineering is, judges whether to aim at according to the real-time reading of power meter.But only under the situation that input and output are all aimed at, light power meter just has reading.Regulating input and output simultaneously wastes time and energy its aligning.
Summary of the invention
The object of the invention is exactly proving installation and the method that the high PLC optical branching device of a kind of efficient is provided for the defective that overcomes above-mentioned prior art existence.
The object of the invention can be realized through following technical scheme: a kind of proving installation of PLC optical branching device; It is characterized in that; This device comprises specimen holder, input end FA, receiving device, photoswitch; LED white light source, broadband infrared light source, computing machine, described specimen holder the place ahead is provided with input end FA, and the rear is provided with receiving device; The output of described LED white light source and broadband infrared light source is parallel-connected to photoswitch through optical fiber, and described computing machine connects LED white light source, broadband infrared light source, photoswitch and receiving device respectively.
Described receiving device is image sensor or hyperchannel FA and light power meter.
Described broadband infrared light source is 1290nm～1610nm broadband infrared radiant.
The method that the proving installation of use PLC optical branching device is tested is characterized in that this method may further comprise the steps:
The first step: input end is aimed at
(1) on specimen holder, puts 1 * N chip to be measured; (2) make the LED white light be transferred to single channel FA through the control photoswitch; (3) selective reception end equipment is imageing sensor; (4) position of adjusting input end FA when demonstrating N white hot spot on the display of computing machine, explains that input end FA aims at the input port of PLC chip;
Second step: output terminal is aimed at
(1) on specimen holder, puts 1 * N chip to be measured; (2) make the broadband infrared light transmission to single channel FA through the control photoswitch; (3) selective reception end equipment is hyperchannel FA and light power meter; (4) fine setting input end FA and receiving end hyperchannel FA make the performance number reading of light power meter maximum;
The 3rd step, test
Broadband infrared light through control photoswitch control different wave length inserts in the passage of 1 * N chip to be measured, records performance number through light power meter and promptly gets and insert loss.
Described 1 * N chip to be measured is exported the opposite end waveguide for N for containing 1 input end waveguide, and wherein N is a natural number.
Described N is 8,16,32,64,128 or 256.
Described broadband infrared optical wavelength range is 1290nm～1610nm, and the test result of inserting loss is the spectrum curve that covers this wavelength band.
The wavelength that described broadband infrared light need be tested is 1310nm, 1490nm and 1550nm.
Through the polarization state of control output light source, record the Polarization Dependent Loss value of 1 * N chip to be measured.
Compared with prior art, the present invention utilizes infrared image sensor (CCD) earlier, regulates the input end of aiming at PLC.And then change light power meter, regulate the output terminal of aiming at PLC.Cooperate the design of industrial holder device, can make the switching of CCD and light power meter become very simple.Resolved into for two steps to the process of PLC coupling like this, simple and clear, improved testing efficiency.
Description of drawings
The synoptic diagram that Fig. 1 aims at for input end of the present invention;
The synoptic diagram that Fig. 2 aims at for output terminal of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment
Shown in Fig. 1-2; A kind of proving installation of PLC optical branching device; This device comprises specimen holder, input end FA1, receiving device, photoswitch 2; LED white light source 3, broadband infrared light source 4, computing machine 5, described specimen holder the place ahead is provided with input end FA1, and the rear is provided with receiving device; The output of described LED white light source 3 and broadband infrared light source 4 is parallel-connected to photoswitch 2 through optical fiber, and described computing machine 5 connects LED white light source 3, broadband infrared light source 4, photoswitch 2 and receiving device respectively.
The method of using the proving installation of above-mentioned PLC optical branching device to test, this method may further comprise the steps:
The first step: input end is aimed at
(1) on specimen holder, puts 1 * N chip 6 to be measured; (2) computing machine 5 output control signal control photoswitches 2 make the LED white light be transferred to single channel FA1; (3) selective reception end equipment is CCD image sensor 7; (4) regulate the position of input end FA1, the vision signal that CCD image sensor 7 is sent is input to computing machine 5, when demonstrating N white hot spot on its display, explains input end FA to be the PLC chip with 1 * N chip 6 to be measured input port is aimed at;
Second step: output terminal is aimed at
(1) on specimen holder, puts 1 * N chip 6 to be measured; (2) computing machine 5 output control signal control photoswitches 2 make the broadband infrared light transmission to single channel FA1; (3) selective reception end equipment is hyperchannel FA8 and light power meter 9; (4) fine setting input end FA1 and receiving end hyperchannel FA8 make the performance number reading of light power meter 9 maximum;
The 3rd step, test
The broadband infrared light that sends 1290nm～1610nm different wave length through control photoswitch 2 control broadband infrared radiants inserts in the passage of 1 * N chip to be measured; Recording performance number through light power meter promptly gets and inserts loss; Outputting data signals input computing machine 5, the test result of inserting loss is the spectrum curve that covers 1290nm～1610nm wavelength band.Through the polarization state of control output light source, can record the Polarization Dependent Loss value of 1 * N chip to be measured.
1 * N chip wherein to be measured is exported the opposite end waveguide for N for containing 1 input end waveguide, and wherein N is a natural number.N is preferably 2,4,8,16,32,64,128 or 256.
The wavelength that described broadband infrared light need be tested is 1310nm, 1490nm and 1550nm preferably.
Claims (9)
1. the proving installation of a PLC optical branching device; It is characterized in that this device comprises specimen holder, input end FA, receiving device, photoswitch, LED white light source, broadband infrared light source, computing machine; Described specimen holder the place ahead is provided with input end FA; The rear is provided with receiving device, and the output of described LED white light source and broadband infrared light source is parallel-connected to photoswitch through optical fiber, and described computing machine connects LED white light source, broadband infrared light source, photoswitch and receiving device respectively.
2. the proving installation of a kind of PLC optical branching device according to claim 1 is characterized in that, described receiving device is image sensor or hyperchannel FA and light power meter.
3. the proving installation of a kind of PLC optical branching device according to claim 1 is characterized in that, described broadband infrared light source is 1290nm～1610nm broadband infrared radiant.
4. the method for using the proving installation of the described PLC optical branching device of claim 1 to test is characterized in that this method may further comprise the steps:
The first step: input end is aimed at
(1) on specimen holder, puts 1 * N chip to be measured; (2) make the LED white light be transferred to single channel FA through the control photoswitch; (3) selective reception end equipment is imageing sensor; (4) position of adjusting input end FA when demonstrating N white hot spot on the display of computing machine, explains that input end FA aims at the input port of PLC chip;
Second step: output terminal is aimed at
(1) on specimen holder, puts 1 * N chip to be measured; (2) make the broadband infrared light transmission to single channel FA through the control photoswitch; (3) selective reception end equipment is hyperchannel FA and light power meter; (4) fine setting input end FA and receiving end hyperchannel FA make the performance number reading of light power meter maximum;
The 3rd step, test
Broadband infrared light through control photoswitch control different wave length inserts in the passage of 1 * N chip to be measured, records performance number through light power meter and promptly gets and insert loss.
5. the method for testing of a kind of PLC optical branching device according to claim 4 is characterized in that, described 1 * N chip to be measured is exported the opposite end waveguide for N for containing 1 input end waveguide, and wherein N is a natural number.
6. the method for testing of a kind of PLC optical branching device according to claim 4 is characterized in that, described N is 8,16,32,64,128 or 256.
7. the method for testing of a kind of PLC optical branching device according to claim 4 is characterized in that, described broadband infrared optical wavelength range is 1290nm～1610nm, and the test result of inserting loss is the spectrum curve that covers this wavelength band.
8. the method for testing of a kind of PLC optical branching device according to claim 7 is characterized in that, the wavelength that described broadband infrared light need be tested is 1310nm, 1490nm and 1550nm.
9. the method for testing of a kind of PLC optical branching device according to claim 4 is characterized in that, through the polarization state of control output light source, records the Polarization Dependent Loss value of 1 * N chip to be measured.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618014A (en) * | 2015-03-03 | 2015-05-13 | 四川飞阳科技有限公司 | Light splitter test system |
| CN108982063A (en) * | 2018-06-15 | 2018-12-11 | 深圳市慧康精密仪器有限公司 | A kind of test method and device of planar optical waveguide device insertion loss |
| CN112230352A (en) * | 2020-10-28 | 2021-01-15 | 常州光芯集成光学有限公司 | Coupling equipment for area array type light source beam splitting and coupling mode thereof |
| CN112665827A (en) * | 2019-10-16 | 2021-04-16 | 北极光电(深圳)有限公司 | Test method of MT-FA product |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104618014A (en) * | 2015-03-03 | 2015-05-13 | 四川飞阳科技有限公司 | Light splitter test system |
| CN108982063A (en) * | 2018-06-15 | 2018-12-11 | 深圳市慧康精密仪器有限公司 | A kind of test method and device of planar optical waveguide device insertion loss |
| CN112665827A (en) * | 2019-10-16 | 2021-04-16 | 北极光电(深圳)有限公司 | Test method of MT-FA product |
| CN112230352A (en) * | 2020-10-28 | 2021-01-15 | 常州光芯集成光学有限公司 | Coupling equipment for area array type light source beam splitting and coupling mode thereof |
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| CN102798513B (en) | 2015-08-19 |
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Effective date of registration: 20180424 Address after: 215400 Taicang Economic Development Zone, Jiangsu, Qingdao West Road, No. 38, No. Patentee after: Suzhou light mantle integrated optics Co., Ltd. Address before: Zhabei District ejon 200072 Shanghai 777 Lane 14, Room 102 Patentee before: Shanghai Guangxin Integrated Optical Co., Ltd. Co., Ltd. |
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Effective date of registration: 20200522 Address after: 213000 Jiangsu province west of the city of Changzhou Taihu science and Technology Industrial Park Dragon Road No. 2 Patentee after: Changzhou optical core integrated optics Co., Ltd Address before: 215400 Taicang Economic Development Zone, Jiangsu, Qingdao West Road, No. 38, No. Patentee before: SUZHOU OPTICORE INTEGRATED OPTICAL Co.,Ltd. |