CN201732979U - First pulse suppression control system of laser and laser - Google Patents
First pulse suppression control system of laser and laser Download PDFInfo
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- CN201732979U CN201732979U CN2010201996093U CN201020199609U CN201732979U CN 201732979 U CN201732979 U CN 201732979U CN 2010201996093 U CN2010201996093 U CN 2010201996093U CN 201020199609 U CN201020199609 U CN 201020199609U CN 201732979 U CN201732979 U CN 201732979U
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Abstract
The utility model relates to a first pulse suppression control system of a laser and a laser. The system comprises a modulation control voltage storage module, a control module, a digital-analog conversion module and an output module, wherein the modulation control voltage storage module stores an initially obtained modulation control voltage array, so as to suppress and release the first pulse power of the laser according to the preset linear rule; the control module is used for calling each modulation control voltage in the modulation control voltage array sequentially from the modulation control voltage storage module according to the set time interval; the digital-analog conversion module is used for sequentially receiving each modulation control voltage for digital-analog conversion and converting into the analog modulation control voltage; and the output module is connected with the digital-analog conversion module, outputs the analog modulation control voltage and performs the suppression control for the first pulse of the laser so as to lead the first pulse power of the laser to be released according to the preset linear rule. The utility model has the advantages that the first pulse of the laser is suppressed and controlled effectively by the modulation control voltage, the first pulse of the laser is released linearly, and the marking quality of the laser is improved.
Description
[technical field]
The utility model relates to a kind of laser pulse control system, relates in particular to the first pulse of a kind of laser and suppresses control system and laser.
[background technology]
The YAG laser is when carrying out laser labelling, for the laser beam output that makes the YAG laser, laser beam is closed and the power of laser beam is subjected to the control of control appliance control signals such as computer, the general acousto-optic Q modulation technology that adopts, be input to the Q head after the modulation amplification of the signal of telecommunication through the amplitude modulation modulation circuit of Q driving power amplifier with the tens megahertz higher-orders of oscillation, piezoelectric crystal is converted into the ultra sonic machinery vibration signal with the signal of telecommunication coupling of the higher-order of oscillation in the Q head.
Laser beam is from the incident of piezoelectric crystal normal to a surface direction, when the higher-order of oscillation signal of telecommunication, the BEAM SQUINT laserresonator axially, can not form laser generation, stop laser by crystal, promptly laser beam is closed.When not having the signal of telecommunication of the higher-order of oscillation, laser forms laser generation by crystal, i.e. laser beam output.(act on the amplitude modulation modulation circuit of Q driving power amplifier when adjusting Q external modulation control signal voltage, be used to modulate higher-order of oscillation signal of telecommunication amplitude) when size, the higher-order of oscillation signal of telecommunication also just with the modulator control signal size amplitude takes place to be changed, just can change the power of laser generation by the piezoelectric crystal of Q head, change promptly that laser beam output is strong and weak to be changed.
After laser shutdown, first pulse when opening laser once more is called first pulse, and the first pulse energy of laser is more a lot of greatly than follow-up pulse energy.If allow the Q head all decontrol, first pulse will cause first point in laser labelling product processed and applied " very heavy ".In order to address this problem, conventional method adopts the linear external modulation control signal voltage method that progressively discharges the Q head, is about to the first pulse energy of laser and suppresses control, progressively discharges, and solves this problem.
Because conventional method adopts the linear external modulation control signal voltage method that progressively discharges the Q head of solid step, because the amplitude modulation modulation circuit characteristic of Q release characteristics and Q driving power amplifier exists non-linear, causing that the first pulse energy of laser progressively discharges is not linear, causes first pulse to suppress poor effect.
Inconsistent because of the amplitude modulation modulation circuit characteristic of each Q release characteristics and each Q driving power amplifier again, cause in the batch process the first pulse rejection of laser system inconsistent;
Above problem is at the material of laser engraving to the laser power sensitivity, and for example during mobile phone key, qualification rate is very low, when products such as the high-grade automobile button of engraving, even can not meet customer need, and greatly reduces the quality of laser mark.
[utility model content]
In view of this, be necessary, propose a kind of first pulse of laser that the first pulse linearity of laser is discharged and suppress control system at the non-linear problem that influences the laser labelling quality of the first pulse release of above-mentioned laser.
In addition, also provide a kind of linear laser that discharges of the first pulse of laser that makes.
The first pulse inhibition of a kind of laser control system comprises: the modulation control store voltages module of voltage array is controlled in the modulation that the first pulse power of inhibition control laser that storing initial obtains discharges according to default linear rule; Link to each other with described modulation control store voltages module, call the control module of each the modulation control voltage the modulation control voltage array according to setting-up time at interval from modulation control store voltages module successively; Link to each other with described control module, receive each modulation control voltage successively and it is carried out digital-to-analogue conversion, be converted to the D/A converter module of analog-modulated control voltage; And link to each other with described D/A converter module, analog-modulated is controlled voltage output, first pulse suppresses control to laser, the output module that the first pulse power of laser is discharged according to default linear rule.
Preferably, also comprise: link to each other with described modulation control store voltages module, initially obtain the first pulse power of inhibition control laser and discharge pairing modulation control voltage array, and transfer to modulation and control the modulation control voltage acquisition module that the store voltages module is stored according to default linear rule.
Preferably, described modulation control voltage acquisition module comprises: the laser power measurement unit of the first pulse power of real-time Laser Measurement device when laser is opened; And link to each other with the laser power measurement unit, according to the first pulse power of laser that the laser power measurement unit is measured, the modulation control voltage measurement unit of the pairing modulation control of each power voltage when the first pulse power of Laser Measurement device changes according to default linear rule.
Preferably, described modulation control voltage array is served as reasons, and all modulate the one-dimension array that control voltages are formed successively.
Preferably, described output module is controlled voltage with analog-modulated and is outputed to Q driving power amplifier, by Q driving power amplifier amplitude modulation modulation circuit the higher-order of oscillation signal of telecommunication is carried out the amplitude modulation modulation, the higher-order of oscillation signal of telecommunication after modulation control voltage modulated is input to the laser cavity of band Q head, the first pulse output of the control laser energy corresponding with the amplitude modulation modulation voltage, first pulse suppresses control to laser.
A kind of laser, a band Q laser cavity that comprises the Q head driver and link to each other with the Q head driver, described Q head driver has the amplitude modulation modulation circuit, comprises that also the first pulse of inhibition control laser that links to each other with described Q head driver suppresses control system according to the first pulse of laser that default linear rule discharges.
Preferably, the first pulse inhibition of described laser control system comprises: the modulation control store voltages module of voltage array is controlled in the modulation that the first pulse power of inhibition control laser that storing initial obtains discharges according to default linear rule; Link to each other with described modulation control store voltages module, call the control module of each the modulation control voltage the modulation control voltage array according to setting-up time at interval from modulation control store voltages module successively; Link to each other with described control module, receive each modulation control voltage successively and it is carried out digital-to-analogue conversion, be converted to the D/A converter module of analog-modulated control voltage; And link to each other with described D/A converter module, analog-modulated is controlled voltage output, first pulse suppresses control to laser, the output module that the first pulse power of laser is discharged according to default linear rule.
Preferably, the first pulse of described laser suppresses control system and also comprises: link to each other with described modulation control store voltages module, initially obtain the first pulse power of inhibition control laser and discharge pairing modulation control voltage array, and transfer to modulation and control the modulation control voltage acquisition module that the store voltages module is stored according to default linear rule.
Preferably, described modulation control voltage acquisition module comprises: the laser power measurement unit of the first pulse power of real-time Laser Measurement device when laser is opened; And link to each other with the laser power measurement unit, according to the first pulse power of laser that the laser power measurement unit is measured, the modulation control voltage measurement unit of the pairing modulation control of each power voltage when the first pulse power of Laser Measurement device changes according to default linear rule.
Preferably, described output module is controlled voltage with analog-modulated and is outputed to Q driving power amplifier, by Q driving power amplifier amplitude modulation modulation circuit the higher-order of oscillation signal of telecommunication is carried out the amplitude modulation modulation, the higher-order of oscillation signal of telecommunication after modulation control voltage modulated is input to the laser cavity of band Q head, the first pulse output of the control laser energy corresponding with the amplitude modulation modulation voltage, first pulse suppresses control to laser.
The first pulse of above-mentioned laser suppresses control system and laser, when laser is opened at every turn, constantly call the first pulse of inhibition control laser of initially obtaining successively and discharge all modulation control voltages in the pairing modulation control voltage array according to default linear rule, suppress the output and the corresponding power that changes according to default linear rule of modulation control voltage in first each time interval of pulse of control laser, thereby effectively first pulse suppresses control to laser, make linear release of the first pulse of laser, improved the quality of laser mark.
[description of drawings]
Fig. 1 is that the first pulse of laser suppresses the control system structural representation among the embodiment;
Fig. 2 is that the first pulse of the laser among another embodiment suppresses the control system structural representation.
[embodiment]
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
Fig. 1 is that the first pulse of laser suppresses the control system structural representation among the embodiment.This system comprises modulation control store voltages module 100, control module 200, D/A converter module 300 and output module 400.
Modulation control store voltages module 100 is used for the modulation control voltage array that the first pulse of inhibition control laser that storing initial obtains discharges according to default linear rule.
Stored in the modulation control store voltages module 100 to be added in and be used to modulate the high-frequency oscillation signal modulation control voltage array that first pulse suppresses to control to laser on the Q driving amplifier amplitude modulation modulation circuit, this modulation control voltage array is an one-dimension array, and the modulation control voltage in the array suppresses the first pulse of control and discharges according to default linear rule.
When control module 200 is opened at laser at every turn, at first call first modulation control voltage from the modulation control voltage array of modulation control store voltages module 100 storages in the mode of tabling look-up, first pulse suppresses control to laser.After setting-up time (can be changed according to different demands) at interval, call second modulation control voltage again, carry out repeatedly, up to all modulation control voltages are all accessed successively, first pulse suppresses control to laser, and the first pulse of laser is discharged according to default linear rule.
D/A converter module 300 is used for receiving successively each modulation control voltage and it is carried out digital-to-analogue conversion, is converted to analog-modulated control voltage.
Fig. 2 is that the first pulse of the laser among another embodiment suppresses the control system structural representation, and system also comprises modulation control voltage acquisition module 500 among this embodiment.
Modulation control voltage acquisition module 500 is used for initially obtaining and suppresses the first pulse of control laser and discharge pairing modulation control voltage array according to default linear rule and transfer to modulation and control store voltages module 100 and store.
Among this embodiment, modulation control voltage acquisition module 500 comprises laser power measurement unit 510 and modulation control voltage measurement unit 520.
The power of first pulse when opening that laser power measurement unit 510 is used for real-time Laser Measurement device.The first pulse power of laser that modulation control voltage measurement unit 520 is measured according to laser power measurement unit 510, the first pulse power of Laser Measurement device discharge pairing modulation control voltage according to default linear rule and transfer to modulation and control store voltages module 100 and store.
Among this embodiment, modulation control voltage measurement unit 520 is measured the laser of normal bright dipping, the first pulse power of setting laser according to 0,1,2 ... 22 (0 for laser will bright dipping zero dividing value, 22 is the first pulse maximum power of laser, measure to obtain in advance) linear rule change the pairing modulation control voltage that is added on the Q driving power amplifier modulation modulation circuit of first each power of pulse of modulation control voltage measurement unit 520 Laser Measurement.Its modulation control voltage measurements is as shown in the table:
| Modulation control voltage (V) | 3.87 | 3.3 | 3.15 | 3.03 | 2.92 | 2.86 | 2.82 | 2.78 | 2.76 | 2.75 | 2.72 | 2.69 |
| First pulse power (W) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| Modulation control voltage (V) | 2.66 | 2.63 | 2.61 | 2.59 | 2.56 | 2.53 | 2.5 | 2.47 | 2.43 | 2.42 | 2.3 | |
| First pulse power (W) | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
Modulation control voltage measurement unit 520 is formed one-dimension array in order with all modulation control voltages, transfers to modulation control store voltages module 100 and stores.
In other embodiments, also can be according to the needs of producing, the first pulse output power of setting laser is measured the modulation control voltage on the pairing Q driving power amplifier modulation modulation circuit according to other linear rules variations arbitrarily.
Said system, 520 need of modulation control voltage measurement unit are obtained modulation control voltage array when initial configuration, transfer to 100 storages of modulation control store voltages module and get final product.In the later each unlatching of laser, 200 need of control unit constantly call modulation control voltage from modulation control store voltages module 100, first pulse suppresses control to laser in output after carrying out digital-to-analogue conversion, and the first pulse of laser is discharged according to default linear rule.
In addition, also provide a kind of laser, this laser comprises Q driving amplifier (having the amplitude modulation modulation circuit), and the laser cavity of band Q head and the first pulse of above-mentioned laser suppress control system.
The first pulse of above-mentioned laser suppresses control system and laser, when laser is opened at every turn, constantly call the first pulse of inhibition control laser of initially obtaining successively and discharge all modulation control voltages in the pairing modulation control voltage array according to default linear rule, suppress the output and the corresponding power that changes according to default linear rule of modulation control voltage in first each time interval of pulse of control laser, thereby effectively first pulse suppresses control to laser, make linear release of the first pulse of laser, improved the quality of laser mark.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. the first pulse inhibition of a laser control system is characterized in that, comprising: the modulation control store voltages module of voltage array is controlled in the modulation that the first pulse power of inhibition control laser that storing initial obtains discharges according to default linear rule; Link to each other with described modulation control store voltages module, call the control module of each the modulation control voltage the modulation control voltage array according to setting-up time at interval from modulation control store voltages module successively; Link to each other with described control module, receive each modulation control voltage successively and it is carried out digital-to-analogue conversion, be converted to the D/A converter module of analog-modulated control voltage; And link to each other with described D/A converter module, analog-modulated is controlled voltage output, first pulse suppresses control to laser, the output module that the first pulse power of laser is discharged according to default linear rule.
2. the first pulse of laser according to claim 1 suppresses control system, it is characterized in that, also comprise: link to each other with described modulation control store voltages module, initially obtain the first pulse power of inhibition control laser and discharge pairing modulation control voltage array, and transfer to modulation and control the modulation control voltage acquisition module that the store voltages module is stored according to default linear rule.
3. the first pulse of laser according to claim 2 suppresses control system, it is characterized in that, described modulation control voltage acquisition module comprises: the laser power measurement unit of the first pulse power of real-time Laser Measurement device when laser is opened; And link to each other with the laser power measurement unit, according to the first pulse power of laser that the laser power measurement unit is measured, the modulation control voltage measurement unit of the pairing modulation control of each power voltage when the first pulse power of Laser Measurement device changes according to default linear rule.
4. the first pulse of laser according to claim 1 suppresses control system, it is characterized in that, described modulation control voltage array is served as reasons, and all modulate the one-dimension array that control voltages are formed successively.
5. the first pulse of laser according to claim 1 suppresses control system, it is characterized in that, described output module is controlled voltage with analog-modulated and is outputed to Q driving power amplifier, by Q driving power amplifier amplitude modulation modulation circuit the higher-order of oscillation signal of telecommunication is carried out the amplitude modulation modulation, the higher-order of oscillation signal of telecommunication after modulation control voltage modulated is input to the laser cavity of band Q head, the first pulse output of the control laser energy corresponding with the amplitude modulation modulation voltage, first pulse suppresses control to laser.
6. laser, a band Q laser cavity that comprises the Q head driver and link to each other with the Q head driver, described Q head driver has the amplitude modulation modulation circuit, it is characterized in that, comprise that also the first pulse of inhibition control laser that links to each other with described Q head driver suppresses control system according to the first pulse of laser that default linear rule discharges.
7. laser according to claim 6, it is characterized in that the first pulse inhibition of described laser control system comprises: the modulation control store voltages module of voltage array is controlled in the modulation that the first pulse power of inhibition control laser that storing initial obtains discharges according to default linear rule; Link to each other with described modulation control store voltages module, call the control module of each the modulation control voltage the modulation control voltage array according to setting-up time at interval from modulation control store voltages module successively; Link to each other with described control module, receive each modulation control voltage successively and it is carried out digital-to-analogue conversion, be converted to the D/A converter module of analog-modulated control voltage; And link to each other with described D/A converter module, analog-modulated is controlled voltage output, first pulse suppresses control to laser, the output module that the first pulse power of laser is discharged according to default linear rule.
8. laser according to claim 7, it is characterized in that, the first pulse of described laser suppresses control system and also comprises: link to each other with described modulation control store voltages module, initially obtain the first pulse power of inhibition control laser and discharge pairing modulation control voltage array, and transfer to modulation and control the modulation control voltage acquisition module that the store voltages module is stored according to default linear rule.
9. laser according to claim 8 is characterized in that, described modulation control voltage acquisition module comprises: the laser power measurement unit of the first pulse power of real-time Laser Measurement device when laser is opened; And link to each other with the laser power measurement unit, according to the first pulse power of laser that the laser power measurement unit is measured, the modulation control voltage measurement unit of the pairing modulation control of each power voltage when the first pulse power of Laser Measurement device changes according to default linear rule.
10. laser according to claim 7, it is characterized in that, described output module is controlled voltage with analog-modulated and is outputed to Q driving power amplifier, by Q driving power amplifier amplitude modulation modulation circuit the higher-order of oscillation signal of telecommunication is carried out the amplitude modulation modulation, the higher-order of oscillation signal of telecommunication after modulation control voltage modulated is input to the laser cavity of band Q head, the first pulse output of the control laser energy corresponding with the amplitude modulation modulation voltage, first pulse suppresses control to laser.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201996093U CN201732979U (en) | 2010-05-21 | 2010-05-21 | First pulse suppression control system of laser and laser |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201996093U CN201732979U (en) | 2010-05-21 | 2010-05-21 | First pulse suppression control system of laser and laser |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255234A (en) * | 2010-05-21 | 2011-11-23 | 深圳泰德激光科技有限公司 | Method and system for inhibiting and controlling first pulse of laser and laser |
| CN105932535A (en) * | 2016-06-16 | 2016-09-07 | 大恒新纪元科技股份有限公司 | Regeneration amplifier with first pulse self-inhibition function |
| CN106505405A (en) * | 2016-10-27 | 2017-03-15 | 武汉华日精密激光股份有限公司 | A kind of picosecond laser single pulse-selecting and control system and method |
| CN113131324A (en) * | 2020-01-14 | 2021-07-16 | 苏州曼德特光电技术有限公司 | Method for realizing first pulse suppression of ultrafast laser |
-
2010
- 2010-05-21 CN CN2010201996093U patent/CN201732979U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255234A (en) * | 2010-05-21 | 2011-11-23 | 深圳泰德激光科技有限公司 | Method and system for inhibiting and controlling first pulse of laser and laser |
| CN102255234B (en) * | 2010-05-21 | 2013-05-08 | 深圳泰德激光科技有限公司 | Method and system for inhibiting and controlling first pulse of laser and laser |
| CN105932535A (en) * | 2016-06-16 | 2016-09-07 | 大恒新纪元科技股份有限公司 | Regeneration amplifier with first pulse self-inhibition function |
| CN105932535B (en) * | 2016-06-16 | 2019-03-19 | 大恒新纪元科技股份有限公司 | A kind of regenerative amplifier inhibiting function certainly with first pulse |
| CN106505405A (en) * | 2016-10-27 | 2017-03-15 | 武汉华日精密激光股份有限公司 | A kind of picosecond laser single pulse-selecting and control system and method |
| CN106505405B (en) * | 2016-10-27 | 2017-10-31 | 武汉华日精密激光股份有限公司 | A kind of picosecond laser single pulse-selecting and control system and method |
| CN113131324A (en) * | 2020-01-14 | 2021-07-16 | 苏州曼德特光电技术有限公司 | Method for realizing first pulse suppression of ultrafast laser |
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