CN204559589U - Optical receiver performance test system - Google Patents
Optical receiver performance test system Download PDFInfo
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- CN204559589U CN204559589U CN201520287590.0U CN201520287590U CN204559589U CN 204559589 U CN204559589 U CN 204559589U CN 201520287590 U CN201520287590 U CN 201520287590U CN 204559589 U CN204559589 U CN 204559589U
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Abstract
The utility model relates to optical module Performance Test System field, especially a kind of Performance Test System of optical communication receiver.A kind of optical receiver Performance Test System is proposed, comprise signal generator, Error Detector, test of light source plate, optical attenuator, light power meter, fiber amplifier, Double-way dc voltage-stabilizing source, desk-top universal instrument, optical branching device and test board, described signal generator is connected with test of light source plate through high-frequency line, test of light source plate is provided with optical transceiver module, described optical transceiver module and fiber amplifier, optical attenuator and optical branching device adopt optical patchcord to connect successively, the output of described optical branching device is connected with the optical receiver to be measured on test board, the output of described optical receiver to be measured connects Error Detector by high-frequency line, described Double-way dc voltage-stabilizing source is the power supply of optical receiver to be measured.The utility model structure is simple, compatible good, flexibly and easily, can realize the multinomial performance parameter of a key test receiver.
Description
Technical field
The utility model relates to optical module Performance Test System field, especially a kind of Performance Test System of optical communication receiver.
Background technology
Along with the fast development of optical communications industry, the integrated module of optical transceiver becomes indispensable core component in Optical Access Network, and integrated module of optical transceiver technology constantly moves to maturity, and to intellectuality, high-speed high density interconnect development.The integrated module of optical transceiver has support hot plug, the advantage that portable and profile is more miniaturized.The bright spot that 10G optical module and parallel optical fibre passage will become in New Generation Optical receiver-transmitter integrated module, the use amount of the integrated module of optical transceiver also can be increasing, and economic benefit is considerable.
As one of the core devices of the integrated module of optical transceiver, the performance of optical receiver directly affects the performance of optical module.The optical receiver of our design at present adopts the TO-46 footprint design of main flow in the industry, the advantages such as it is little that it has volume, and packaging cost is low, manufacturing process relative ease.This is the packing forms comparatively commonly used of optical receiver in the industry, and we need inside base (diameter is about the circle of 4mm) to place the heat sink chip of a band, and a trans-impedance amplifier (TIA), a resistance, two electric capacity amount to five elements.The mode of point discharge is adopted to be welded on base by the pipe cap carrying lens.Adopt laser welding process fiber stub to be coupled with body weld together, realize welding of optical receiver and optical module circuit board finally by soft ribbons.
For meeting the required distance of optical fiber link, in different optical communication applications, usually require dissimilar and optical receiver that is parameter.In order to obtain the configuration of application request, the parameters such as the sensitivity to optical receiver, operating voltage, dark current, photoelectric current, working temperature, overload luminous power, amplifier operation electric current are needed to test and optimize.Therefore the testing performance index of complete, accurate, high efficiency optical receiver can be carried out, quality and the cost of product will be directly determined.Because test event is complicated, use equipment is various, if take the method for manually test performance one by one, tester access point can be caused a lot, cause system building very complicated, also likely occur the situation of test event omission or same project retest, production efficiency is low, and test consistency is poor.So require that the test macro of optical receiver has larger flexibility, intellectuality can be realized, one-touch test.Therefore how to realize fast and accurately becoming an emerging problem to the test of optical receiver performance.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of structure, compatible good, flexibly and easily, performance accurately and reliably, high efficiency, intelligentized Performance Test System.
The utility model solves the technical scheme that prior art problem adopts: a kind of optical receiver Performance Test System, comprise signal generator, Error Detector, test of light source plate, optical attenuator, light power meter, fiber amplifier, Double-way dc voltage-stabilizing source, desk-top universal instrument, optical branching device and test board, it is characterized in that: described signal generator is connected with test of light source plate through high-frequency line, test of light source plate is provided with optical transceiver module, described optical transceiver module and fiber amplifier, optical attenuator and optical branching device adopt optical patchcord to connect successively, the output of described optical branching device is connected with the optical receiver to be measured on test board, the output of described optical receiver to be measured connects Error Detector by high-frequency line, described Double-way dc voltage-stabilizing source is the power supply of optical receiver to be measured.
Described optical transceiver module is connected to the standard socket place of described test of light source plate by golden finger.
Described optical receiver to be measured is connected to the corresponding golden finger place on test board by pad.
Described desk-top universal instrument is connected with test board, is used for measuring the thermosensitive resistance of optical receiver to be measured.
The output of described optical branching device is connected with described light power meter.
The beneficial effects of the utility model are: the utility model structure is simple, and compatible good, flexibly and easily, performance accurately and reliably, effectively can improve testing efficiency.Adopt the utility model can measure most of performance parameter of optical receiver simultaneously and can be optimized simultaneously, not only single stepping test can be realized but also a key test can be realized, and test detailed data, error code curve can be saved to the path of specifying, realize the trackability of product.The design of this test macro not only simplify intelligent acess point, and improve the consistency of operating efficiency and product test result, this system has extensibility simultaneously, test event and stricter test request that client increases day by day can be met, be applicable to the application in the whole field tests of optical receiver.
Accompanying drawing explanation
Fig. 1 is system configuration schematic diagram of the present utility model;
Fig. 2 is the sensitivity matched curve figure of optical receiver of the present utility model;
Fig. 3 position software test surface chart of the present utility model.
In figure, 1-signal generator and Error Detector, 2-test of light source plate, 3-fiber amplifier, 4-optical attenuator, 5-optical branching device, 6-light power meter, 7-test board, 8-D.C. regulated power supply, the desk-top universal instrument of 9-, 10-high-frequency line, 11-optical patchcord, 12-optical transceiver module.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described:
Fig. 1 is the structural representation of the Performance Test System of the utility model optical receiver.A kind of optical receiver Performance Test System, comprise signal generator and Error Detector 1, test of light source plate 2, fiber amplifier 3, optical attenuator 4, optical branching device 5, light power meter 6, test board 7, Double-way dc voltage-stabilizing source 8 and desk-top universal instrument 9, described signal generator 1 is connected with test of light source plate 2 through high-frequency line 10, and this signal generator 1 can produce the nonreturn to zero code of 9.953Gb/S to 11.3Gb/S.Test of light source plate 2 is provided with optical transceiver module 12, optical transceiver module 12 is connected by the standard socket of golden finger with test of light source plate 2, optical transceiver module 12 and fiber amplifier 3, optical attenuator 4 and optical branching device 5 adopt optical patchcord 11 to be connected successively, and the output of optical branching device 5 is connected with optical receiver to be measured (being labeled as ROSA in Fig. 1) and light power meter 6 respectively.Described optical receiver to be measured is connected with the corresponding golden finger of test board 7 by the pad of 8pin with test board 1, and light signal is converted to the signal of telecommunication by optical receiver to be measured, and this signal of telecommunication is connected with Error Detector 1 by the high-frequency line 10 be connected with test board 7.Double-way dc voltage-stabilizing source 8 powers to optical receiver inside chip to be measured and trans-impedance amplifier by test board 7.Desk-top universal instrument 9 detects the thermosensitive resistance of optical receiver to be measured by test board 7.
The utility model test job process is:
1) pattern of desired rate is sent by signal generator, by high-frequency line by the interface end of electric signal transmission to test of light source plate, by the drives laser utilizing emitted light signal of test of light source plate.
2) 26V is preset by software adjustment D.C. regulated power supply Vcc (3.3V) and bias voltage Vpd().
3) light signal that laser produces is connected to optical branching device by fiber amplifier, optical attenuator, is automatically regulated the pad value of optical attenuator by software, when the luminous power after decaying is at-30dBm, regulate Vpd voltage, make error code be best.
4) computer testing software automatic test dark current, puncture voltage, photoelectric current, overload luminous power is utilized.
5) error code values under the different input light intensity of computer testing software test is utilized.Under normal circumstances, be about near 1e-7 get first point from error code values, then input light intensity often increases 0.5dB and remembers second point again, until error code values is about 1e-11, generally can get 5 points, also likely 4 points.Then these points are carried out curve fitting, calculate the input light intensity that this point of 1e-12 is corresponding, be optical receiver sensitivity, see Fig. 2.
6) Error Detector carries out error rate calculation, and data are uploaded to computer by RS232 serial communication, and by system testing interface display, sees Fig. 3.
Above content is in conjunction with concrete optimal technical scheme further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (5)
1. optical receiver Performance Test System, comprise signal generator, Error Detector, test of light source plate, optical attenuator, light power meter, fiber amplifier, Double-way dc voltage-stabilizing source, desk-top universal instrument, optical branching device and test board, it is characterized in that: described signal generator is connected with test of light source plate through high-frequency line, test of light source plate is provided with optical transceiver module, described optical transceiver module and fiber amplifier, optical attenuator and optical branching device adopt optical patchcord to connect successively, the output of described optical branching device is connected with the optical receiver to be measured on test board, the output of described optical receiver to be measured connects Error Detector by high-frequency line, described Double-way dc voltage-stabilizing source is the power supply of optical receiver to be measured.
2. optical receiver Performance Test System according to claim 1, is characterized in that: described optical transceiver module is connected to the standard socket place of described test of light source plate by golden finger.
3. optical receiver Performance Test System according to claim 1, is characterized in that: described optical receiver to be measured is connected to the corresponding golden finger place on test board by pad.
4. optical receiver Performance Test System according to claim 1, is characterized in that: described desk-top universal instrument is connected with test board, is used for measuring the thermosensitive resistance of optical receiver to be measured.
5. optical receiver Performance Test System according to claim 1, is characterized in that: the output of described optical branching device is connected with described light power meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287590.0U CN204559589U (en) | 2015-05-06 | 2015-05-06 | Optical receiver performance test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287590.0U CN204559589U (en) | 2015-05-06 | 2015-05-06 | Optical receiver performance test system |
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| CN204559589U true CN204559589U (en) | 2015-08-12 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911394A (en) * | 2016-05-11 | 2016-08-31 | 北京浦丹光电股份有限公司 | PIN-PET optical receiving assembly automatic test system |
| CN106936495A (en) * | 2017-03-23 | 2017-07-07 | 厦门优迅高速芯片有限公司 | The automatic testing equipment and method of a kind of smooth transceiving chip |
| CN108259084A (en) * | 2017-12-26 | 2018-07-06 | 武汉电信器件有限公司 | A kind of assessment harden structure of high-speed light receiver test and its test system |
| CN108366251A (en) * | 2018-01-02 | 2018-08-03 | 杭州万隆光电设备股份有限公司 | A kind of cable television system optical link test device |
| CN110476071A (en) * | 2017-03-30 | 2019-11-19 | 赛灵思公司 | Electric test is carried out to optical receiver |
| CN113824496A (en) * | 2021-11-24 | 2021-12-21 | 武汉普赛斯电子技术有限公司 | Test method and test device for Combo optical device |
| CN114650094A (en) * | 2022-05-24 | 2022-06-21 | 四川泰瑞创通讯技术股份有限公司 | Device and system for monitoring error rate of detector |
-
2015
- 2015-05-06 CN CN201520287590.0U patent/CN204559589U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911394A (en) * | 2016-05-11 | 2016-08-31 | 北京浦丹光电股份有限公司 | PIN-PET optical receiving assembly automatic test system |
| CN105911394B (en) * | 2016-05-11 | 2019-05-07 | 北京浦丹光电股份有限公司 | PIN-FET light-receiving component Auto-Test System |
| CN106936495A (en) * | 2017-03-23 | 2017-07-07 | 厦门优迅高速芯片有限公司 | The automatic testing equipment and method of a kind of smooth transceiving chip |
| CN106936495B (en) * | 2017-03-23 | 2019-07-19 | 厦门优迅高速芯片有限公司 | A kind of automatic testing equipment and method of smooth transceiving chip |
| CN110476071A (en) * | 2017-03-30 | 2019-11-19 | 赛灵思公司 | Electric test is carried out to optical receiver |
| CN110476071B (en) * | 2017-03-30 | 2021-01-22 | 赛灵思公司 | Photodiode emulator, test circuit and method for emulating a photodiode |
| CN108259084A (en) * | 2017-12-26 | 2018-07-06 | 武汉电信器件有限公司 | A kind of assessment harden structure of high-speed light receiver test and its test system |
| CN108259084B (en) * | 2017-12-26 | 2020-06-30 | 武汉电信器件有限公司 | Evaluation board structure for high-speed optical receiver test and test system thereof |
| CN108366251A (en) * | 2018-01-02 | 2018-08-03 | 杭州万隆光电设备股份有限公司 | A kind of cable television system optical link test device |
| CN113824496A (en) * | 2021-11-24 | 2021-12-21 | 武汉普赛斯电子技术有限公司 | Test method and test device for Combo optical device |
| CN113824496B (en) * | 2021-11-24 | 2022-03-11 | 武汉普赛斯电子技术有限公司 | Test method and test device for Combo optical device |
| CN114650094A (en) * | 2022-05-24 | 2022-06-21 | 四川泰瑞创通讯技术股份有限公司 | Device and system for monitoring error rate of detector |
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