CN202737868U - Optical module automatic debugging tool and system thereof - Google Patents
Optical module automatic debugging tool and system thereof Download PDFInfo
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- CN202737868U CN202737868U CN201220411705.9U CN201220411705U CN202737868U CN 202737868 U CN202737868 U CN 202737868U CN 201220411705 U CN201220411705 U CN 201220411705U CN 202737868 U CN202737868 U CN 202737868U
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Abstract
The utility model relates to an optical module automatic debugging tool and a system thereof. The optical module automatic debugging tool comprises a modulation signal generation circuit, an optical power acquisition circuit, and a communication and signal processing circuit. The modulation signal generation circuit generates a modulation signal and sends the modulation signal to a module to be debugged. The module to be debugged is controlled by the communication and signal processing circuit to emit light for being debugged. The light-emitting information of the module to be debugged is acquired by the optical power acquisition module and then is transmitted to the communication and signal processing circuit. The optical module automatic debugging tool and the system thereof have the advantages of low cost and high automation level and can be used for debugging the optical power and the extinction ratio of an optical module. Due to the adoption of the optical module automatic debugging tool and the system thereof, people are no longer in need of a traditional bit-error tester, a traditional sampling oscilloscope and the like, so that the cost is greatly reduced. Meanwhile, the offline debugging is realized, and both the production automation level and the production efficiency are greatly improved. Therefore, the comprehensive strength of manufacturers devoted in the field of optical modules is improved. The optical module automatic debugging tool and the system thereof have great significance for cost reduction and competitiveness improvement.
Description
Technical field
The utility model relates to the optical communication technique field, particularly a kind of debugging tool and system that optical module is debugged automatically.
Background technology
The growth at full speed in recent years of optical communication industry, so that equipment vendors are increasing for the demand of optical module, cost requirement is also harsher.Reducing cost from links such as research and development, buying, productions is the common issue that optical module manufacturer faces.From production link, also increasing for the input cost of instrument and meter along with the sustainable growth of optical module demand, and operating efficiency does not have significant change.This contradiction is very outstanding.
At present optical module manufacturer generally adopts Error Detector and sampling oscilloscope and light power meter to debug luminous power and extinction ratio, and these equipment not only cost is high, and be unfavorable for expanding the operating efficiency of single cover system.
The utility model content
The purpose of this utility model is to provide a kind of optical module automatic Debugging frock, has solved the cost height that existing employing Error Detector and sampling oscilloscope and light power meter are debugged luminous power and extinction ratio existence, ineffective technical problem.
Solve above-mentioned technical purpose for reaching, the utility model provides a kind of optical module automatic Debugging frock, and described debugging tool comprises modulation generating circuit, luminous power Acquisition Circuit and communication and signal processing circuit; Described modulation generating circuit generates modulation signal to module to be debugged, it is luminous and it is debugged that communication and signal processing circuit are controlled module to be debugged, and the luminous power acquisition module gathers the illuminated message of module to be debugged and transfers to and communicates by letter and signal processing circuit.
Preferably, described modulation generating circuit comprises active crystal oscillator, amplitude limit resistance and the coupling capacitance of successively series connection, and active crystal oscillator passes through to generate modulation signal to module to be debugged after amplitude limit resistance and the coupling capacitance.
Preferably, described modulation generating circuit comprises integrated chip and coupling capacitance, and integrated chip is by generating modulation signal to module to be debugged after the coupling capacitance.
Preferably, described luminous power acquisition module is an analog-to-digital conversion module.
Preferably, described analog-to-digital conversion module comprises opto-electronic conversion chip, sampling resistor and analog to digital converter; Described opto-electronic conversion chip gathers the illuminated message of described module to be debugged and is converted to current signal, and described current signal is converted into voltage signal by sampling resistor, and described analog to digital converter is converted into digital quantity with described voltage signal.
Preferably, described communication and signal processing circuit comprise single-chip microcomputer.
Preferably, pass through I between described single-chip microcomputer and the optical module to be debugged
2The C bus is joined and is communicated.
Based on the design of above-mentioned optical module automatic Debugging frock, the utility model has also proposed a kind of optical module automatic debugging system, and described debug system comprises above-mentioned debugging tool and computer, computer and debugging tool communicate by letter and signal processing circuit is joined.
Preferably, described debug system comprises stabilized voltage power supply, and described stabilized voltage power supply is the debugging tool power supply.
Preferably, described computer with communicate by letter and signal processing circuit between join by the usb data line and to communicate.
The beneficial effects of the utility model are: the utility model cost is low, automatization level is high, can realize the debugging of luminous power and the extinction ratio of optical module.Debugging of the present utility model no longer needs the equipment such as traditional Error Detector and sampling oscilloscope, greatly reduces cost; Offline debugger be can realize, production automation level and production efficiency improved greatly.This will improve the comprehensive strength of optical module producer, and for reducing cost, enhancing competitiveness is of great importance.
Description of drawings
Fig. 1 is the theory diagram of a kind of embodiment of the utility model;
Fig. 2 is the theory diagram of the utility model modulation generating circuit;
Fig. 3 is the theory diagram of the utility model modulation generating circuit;
Fig. 4 is the theory diagram of the utility model luminous power acquisition module;
The theory diagram of the communication of Fig. 5 the utility model and signal processing circuit;
Fig. 6 is debugging principle schematic diagram of the present utility model.
Embodiment
Below in conjunction with the description of drawings specific embodiment of the utility model:
As shown in Figure 1, present embodiment has proposed a kind of optical module automatic Debugging frock, and this debugging tool comprises modulation generating circuit, luminous power Acquisition Circuit and communication and signal processing circuit; Modulation generating circuit generates modulation signal and is sent to module to be debugged, communication and signal processing circuit are controlled the luminance of module to be debugged, the luminous power acquisition module gathers the illuminated message of module to be debugged and transfers to communication and signal processing circuit, and communication and signal processing circuit are debugged optical module to be debugged.
Design based on above-mentioned optical module automatic Debugging frock, present embodiment has also proposed a kind of optical module automatic debugging system, this debug system comprises debugging tool and computer, and debugging tool comprises modulation generating circuit, luminous power Acquisition Circuit and communication and signal processing circuit; Modulation generating circuit generates modulation signal to module to be debugged, it is luminous and it is debugged that communication and signal processing circuit are controlled module to be debugged, the luminous power acquisition module gathers the illuminated message of module to be debugged and transfers to communication and signal processing circuit, computer and debugging tool communicate by letter and signal processing circuit is joined by the usb data line and is communicated.The debug system of present embodiment also comprises a stabilized voltage power supply, and stabilized voltage power supply is the debugging tool power supply.During work, issue control signal by computer, luminous by Single-chip Controlling optical module to be debugged, the light that the luminous power acquisition module will receive is converted into digital value, is reported to computer after then being read by single-chip microcomputer.
The below is described in detail the modules of present embodiment:
The modulation generating circuit of present embodiment can have following two kinds of embodiments, but is not limited to following two schemes, and is specific as follows:
(1) as shown in Figure 2, modulation generating circuit comprises active crystal oscillator, amplitude limit resistance and the coupling capacitance of successively series connection, and active crystal oscillator passes through to generate modulation signal to module to be debugged after amplitude limit resistance and the coupling capacitance.Adopt the active crystal oscillator of a 25MHz, the 25MHz of its output is sinusoidal wave by after series resistance amplitude limit and the AC coupled, just produced the modulation signal that can be used for debug system.
(2) as shown in Figure 3, described modulation generating circuit comprises integrated chip and coupling capacitance, and integrated chip is by generating modulation signal to module to be debugged after the coupling capacitance.Adopt a special integrated chip VSC8228, by disposing its register, can export the square wave of different frequency, this square wave also can be used for the modulation signal as debug system after by AC coupled.
The luminous power acquisition module of present embodiment can have following two kinds of embodiments, but is not limited to following two schemes, and is specific as follows:
(1) as shown in Figure 4: the luminous power acquisition module is that analog-to-digital conversion module, an analog-to-digital conversion module comprise opto-electronic conversion chip PD, sampling resistor and analog to digital converter ADC; Opto-electronic conversion chip PD gathers the illuminated message of module to be debugged and is converted to current signal, and current signal is converted into voltage signal by sampling resistor, and analog to digital converter ADC is converted into digital quantity with voltage signal, thereby is used to indicate optical power intensity.
(2) the luminous power acquisition module is a part of optical module, thereby, also can directly adopt an optical module herein, utilize the luminous power acquisition function of optical module to get final product.
Communication and the signal processing circuit of present embodiment are as follows:
As shown in Figure 5, adopt chip microcontroller to the I of optical module to be debugged
2The usb communication of C communication and computer if adopt offline debugger, can remove usb communication, and signal processing function is got final product inner realization of single-chip microcomputer.
Operation principle and the step of native system are described below:
1, at first, known target luminous power Pavg and target Extinction ratio;
2, by Pavg and ER, calculate P0 and P1, calculate according to following formula: Pavg=(P0+P1)/2; ER=10logP1/P2; (wherein, Pavg is the target average light power, and P0 is that debug signal is 0 o'clock luminous power, and P1 is that modulation signal is 1 o'clock luminous power, and ER is the target extinction ratio);
3, communication and signal processing circuit are adjusted to 0 with the modulated current Imod of optical module to be debugged first, then control several different bias current Ibias outputs, obtain several luminous power Ps corresponding with Ibias by the luminous power acquisition module, then draw the LIV curve by these several points (Ibias, P), as shown in Figure 6.
4, according to the LIV curve, at first search for the Ibias that the P0 luminous power needs.Method is for to be adjusted to 0 with Imod, then continues to increase the bias current Ibias output of optical module to be debugged, and when the luminous power that collects when the luminous power Acquisition Circuit arrived P0, this moment, corresponding bias current Ibias output just equaled the needed Ibias of P0 luminous power.
5, obtain Ibias after, just need Searching I mod value.Method is to add on the basis that searches the Ibias electric current to optical module to be debugged, continuing to increase modulated current Imod, and when the luminous power that collects arrived Pavg, the modulated current Imod that provide this moment was our target Imod electric current.
6, can obtain target Ibias and Imod value by above method, namely corresponding target P 0 and P1 according to step 1 as can be known, should debug target light power P avg and target Extinction ratio by optical module to be debugged, and debugging finishes.
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. optical module automatic Debugging frock, it is characterized in that: described debugging tool comprises modulation generating circuit, luminous power Acquisition Circuit and communication and signal processing circuit; Described modulation generating circuit generates modulation signal to module to be debugged, it is luminous and it is debugged that communication and signal processing circuit are controlled module to be debugged, and the luminous power acquisition module gathers the illuminated message of module to be debugged and transfers to and communicates by letter and signal processing circuit.
2. optical module automatic Debugging frock according to claim 1, it is characterized in that: described modulation generating circuit comprises active crystal oscillator, amplitude limit resistance and the coupling capacitance of successively series connection, and active crystal oscillator passes through to generate modulation signal to module to be debugged after amplitude limit resistance and the coupling capacitance.
3. optical module automatic Debugging frock according to claim 1, it is characterized in that: described modulation generating circuit comprises integrated chip and coupling capacitance, integrated chip is by generating modulation signal to module to be debugged after the coupling capacitance.
4. optical module automatic Debugging frock according to claim 1, it is characterized in that: described luminous power acquisition module is an analog-to-digital conversion module.
5. optical module automatic Debugging frock according to claim 4, it is characterized in that: described analog-to-digital conversion module comprises opto-electronic conversion chip, sampling resistor and analog to digital converter; Described opto-electronic conversion chip gathers the illuminated message of described module to be debugged and is converted to current signal, and described current signal is converted into voltage signal by sampling resistor, and described analog to digital converter is converted into digital quantity with described voltage signal.
6. optical module automatic Debugging frock according to claim 1, it is characterized in that: described communication and signal processing circuit comprise single-chip microcomputer.
7. optical module automatic Debugging frock according to claim 6 is characterized in that: pass through I between described single-chip microcomputer and the optical module to be debugged
2The C bus is joined and is communicated.
8. optical module automatic debugging system, it is characterized in that: described debug system comprises claim 1-7 each described debugging tool and computer, computer and debugging tool communicate by letter and signal processing circuit is joined.
9. optical module automatic debugging system according to claim 8, it is characterized in that: described debug system comprises stabilized voltage power supply, described stabilized voltage power supply is the debugging tool power supply.
10. it is characterized in that according to claim 8 or 9 described optical module automatic debugging systems: described computer with communicate by letter and signal processing circuit between join by the usb data line and to communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220411705.9U CN202737868U (en) | 2012-08-20 | 2012-08-20 | Optical module automatic debugging tool and system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220411705.9U CN202737868U (en) | 2012-08-20 | 2012-08-20 | Optical module automatic debugging tool and system thereof |
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| CN202737868U true CN202737868U (en) | 2013-02-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105227232A (en) * | 2014-06-25 | 2016-01-06 | 四川泰瑞创通讯技术有限公司 | The adjustment method of optical module utilizing emitted light power |
| CN108061946A (en) * | 2017-11-06 | 2018-05-22 | 江苏奥雷光电有限公司 | A kind of active optical assembly coupling stepping method |
| CN111193551A (en) * | 2020-04-09 | 2020-05-22 | 深圳市欧深特信息技术有限公司 | Optical module parameter debugging method, storage medium and terminal equipment |
-
2012
- 2012-08-20 CN CN201220411705.9U patent/CN202737868U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105227232A (en) * | 2014-06-25 | 2016-01-06 | 四川泰瑞创通讯技术有限公司 | The adjustment method of optical module utilizing emitted light power |
| CN108061946A (en) * | 2017-11-06 | 2018-05-22 | 江苏奥雷光电有限公司 | A kind of active optical assembly coupling stepping method |
| CN111193551A (en) * | 2020-04-09 | 2020-05-22 | 深圳市欧深特信息技术有限公司 | Optical module parameter debugging method, storage medium and terminal equipment |
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Granted publication date: 20130213 |