CN206558875U - A kind of pulse laser - Google Patents
A kind of pulse laser Download PDFInfo
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- CN206558875U CN206558875U CN201720170569.1U CN201720170569U CN206558875U CN 206558875 U CN206558875 U CN 206558875U CN 201720170569 U CN201720170569 U CN 201720170569U CN 206558875 U CN206558875 U CN 206558875U
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Abstract
The utility model discloses a kind of pulse laser, including：Driver for generating dash current and pulse current, the dash current is more than the pulse current；It is connected with the driver, the continuous laser pipe for generating pulse laser according to the dash current and the pulse current.Because driver produces the dash current more than pulse current; dash current and pulse current are converted to pulse laser by continuous laser pipe; not only so that the rising edge of pulse laser substantially accelerates; accelerate response speed; also increase the pulse width of pulse laser; so that pulse width reaches hundreds of nanoseconds and Microsecond grade; overcome the rising slowly problem due to the laser waveform that normal pulse current flow drives continuous laser pipe to produce, and normal pulsed laser tube under identical pulse width the problem of be easily burned out.
Description
Technical field
The utility model is related to laser pulse technical field, more particularly to a kind of pulse laser.
Background technology
Pulse width refer to pulse can reach maximum duration section, pulse laser pipe of the prior art without
Method reaches that pulse width is hundreds of nanoseconds even microsecond rank, if launching for hundreds of nanoseconds very using existing pulse laser pipe
To the other high power laser light of Microsecond grade, laser tube can be burnt.
Therefore, how to accelerate the response speed of pulse laser, at the same realize hundreds of nanosecond rank or microsecond rank
High power pulsed laser be those skilled in the art's technical issues that need to address.
Utility model content
The purpose of this utility model is to provide a kind of pulse laser, can accelerate the response speed of pulse laser, simultaneously
It is hundreds of nanoseconds or the other pulse laser of Microsecond grade to send pulse width.
In order to solve the above technical problems, the utility model provides a kind of pulse laser, including：
Driver for generating dash current and pulse current, the dash current is more than the pulse current；
It is connected with the driver, the company for generating pulse laser according to the dash current and the pulse current
Continuous laser tube.
It is preferred that, in above-mentioned pulse laser, the driver includes：
Converter for generating surge voltage signal and pulse voltage signal；
For the surge voltage signal to be converted into dash current, the pulse voltage signal is converted into pulse current
Current amplifier module.
It is preferred that, in above-mentioned pulse laser, the Current amplifier module includes：
Operational amplifier is controlled, its forward end is connected with the output end of the converter, and backward end is connected with sampling resistor；
Power tube, its base electrode or grid with it is described control operational amplifier output end be connected, colelctor electrode or drain electrode and
Power supply is connected, and emitter stage or source electrode are connected with the continuous laser pipe；
The sampling resistor, its one end ground connection, backward end and the company of the other end with the control operational amplifier
Continuous laser tube connection.
It is preferred that, in above-mentioned pulse laser, the driver includes：
Power tube, its grid or base electrode are connected with control end, and drain electrode or colelctor electrode are connected with the first power supply, source electrode or hair
Emitter-base bandgap grading is connected with the continuous laser pipe；
Electric capacity, the first end of the electric capacity is connected with first power supply and the drain electrode of the power tube or colelctor electrode,
Second end is grounded；
Diode, the anode of the diode is connected with second source, the first end of negative electrode and the electric capacity and described
First power supply is connected.
It is preferred that, in above-mentioned pulse laser, the duration ranges of the dash current are the μ s of 1ns~1.
It is preferred that, in above-mentioned pulse laser, the duration of the pulse current is nanosecond and Microsecond grade
Duration.
The utility model provides a kind of pulse laser, including：For according to the control instruction of user generation control letter
Number controller；It is connected with the controller output end, for generating dash current and pulse electricity according to the control signal
The driver of stream, the dash current is more than the pulse current；It is connected with the driver, for according to the dash current
And the pulse current generates the continuous laser pipe of pulse laser.
Because driver produces the dash current more than pulse current, continuous laser pipe is by dash current and pulse current
Pulse laser is converted to, not only the rising edge of pulse laser is substantially accelerated, accelerates response speed, also increases pulse laser
Pulse width so that pulse width reaches hundreds of nanoseconds and Microsecond grade, overcome due to normal pulse current flow drive connect
The rising slowly problem, and normal pulsed laser tube is in identical pulse width for the laser waveform that continuous laser tube is produced
The problem of being easily burned out down.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
The structure chart for the pulse laser that Fig. 1 is provided by the utility model embodiment；
A kind of circuit diagram for pulse laser that Fig. 2 is provided by the utility model embodiment；
The circuit diagram for another pulse laser that Fig. 3 is provided by the utility model embodiment；
A kind of driving theoretical waveforms for pulse laser that Fig. 4 is provided by the utility model embodiment；
Fig. 5 is the laser waveform figure that the conventional pulse current excitation provided in the prior art is produced；
The laser waveform that the pulsed current excitation with dash current that Fig. 6 is provided by the utility model embodiment is produced
Figure.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
It refer to Fig. 1, the structure chart for the pulse laser that Fig. 1 is provided by the utility model embodiment.
There is provided a kind of pulse laser in a kind of embodiment, including：
Driver 06 for generating dash current and pulse current, the dash current is more than the pulse current；
It is connected with the driver 06, for generating pulse laser according to the dash current and the pulse current
Continuous laser pipe 05.
In the present embodiment there is provided pulse laser include for power power supply VCC, refer to for the control according to user
Make and generate the controller 01 of control signal, be connected with the output end of controller 01, for being generated according to the control signal
The driver 06 and continuous laser pipe 0505 of dash current and pulse current.Wherein, continuous laser pipe 05 is can be continuously long
Time produces the laser tube of laser.
If driving continuous laser pipe 05 to launch on laser, the waveform of the laser pulse of laser using traditional pulse voltage
Rising edge and trailing edge all has the more slow gradient, and waveform change is slow, and pulse width is smaller.Wave-length coverage can be any wavelength
The moment power output of the continuous laser pipe 05 of scope is high, and can continuous emission excimer laser, using continuous laser pipe 05 come generation
For traditional pulse laser pipe.The control driver 06 of controller 01 produces a rise time very precipitous dash current, punching
The amplitude for hitting electric current is much larger than the electric current of pulse current, dash current be more than or equal to several times of the pulse current it is even several
Ten times, and the duration be t, the rise time as the width of dash current, after time t, voltage dip to pulse current
Value, constant output, until after pulse width time, closing pulse current, i.e., causing pulse laser quickly to light with dash current,
Realize the rapid increase edge of pulse laser.
Therefore, control driver 06 to produce the dash current more than pulse current by controller 01, driven by driver 06
Dash current is converted to pulse laser by dynamic continuous laser pipe 05 so that the rising edge of pulse laser substantially accelerates, and accelerates to ring
Speed is answered, the pulse width of pulse laser is also increased so that pulse width reaches more than hundreds of nanoseconds and Microsecond grade, gram
The rising slowly problem, and common arteries and veins due to the laser waveform that pulse current drives continuous laser pipe 05 to produce is taken
The problem of impulse light pipe is easily burned out under identical pulse width.
As shown in Fig. 2 a kind of circuit diagram for pulse laser that Fig. 2 is provided by the utility model embodiment.
On the basis of above-mentioned pulse laser, the driver 06 includes：
Converter 02 for generating surge voltage signal and pulse voltage signal；
For the surge voltage signal to be converted into dash current, the pulse voltage signal is converted into pulse current
Amplification module.
Wherein, the input of converter 02 is connected with controller 01, for generating surge voltage signal according to control signal
And pulse voltage signal, pulse current amplification module is connected with the output end of converter 02.
It is pointed out that the annexation between device and device that driver 06 includes is not limited to above-mentioned feelings
Condition, can also be the driver of other structures, for example, the driver of dash current and pulse current is only produced, in protection
In the range of.
On the basis of above-mentioned pulse laser, the Current amplifier module includes：
Operational amplifier 03 is controlled, its forward end is connected with the output end of the converter, backward end and sampling resistor 07
Connection；
Power tube 04, the output end connection of control operational amplifier 03 described in its base electrode or grid, colelctor electrode or drain electrode
It is connected with power supply, emitter stage or source electrode are connected with the continuous laser pipe 05；
The sampling resistor 07, its one end ground connection, the other end controls the negative pole of operational amplifier 03 and described with described
Continuous laser pipe 05 is connected.
It is pointed out that power tube 04 can be real for other suitable power tubes such as field-effect transistor or triode
It is existing, in protection domain.In addition, Current amplifier module includes but is not limited to above-mentioned Current Negative Three-Point Capacitance mode, that is, include but not
It is limited to the above-mentioned circuit for utilizing and controlling operational amplifier 03, power tube 04 and the connection of sampling resistor 07 to be formed, it can also be used
He realizes mode, in protection domain.
As shown in Figures 3 and 4, the circuit diagram for another pulse laser that Fig. 3 is provided by the utility model embodiment；Figure
A kind of driving theoretical waveforms of 4 pulse lasers provided by the utility model embodiment.
The driver includes：
Power tube, its grid or base electrode are connected with control end, and drain electrode or colelctor electrode are connected with the first power supply, source electrode or hair
Emitter-base bandgap grading is connected with the continuous laser pipe 05；
Electric capacity, the first end of the electric capacity is connected with first power supply and the drain electrode of the power tube or colelctor electrode,
Second end is grounded；
Diode, the anode of the diode is connected with second source, the first end of negative electrode and the electric capacity and described
First power supply is connected.
Wherein, the voltage that the first power supply is provided is U1, and the voltage that second source is provided is U2, magnitude of voltage U1>U2, power tube
Using flash type of drive, it is also possible to which low side type of drive, the grid or base electrode of power tube are connected with control end, and control end is defeated
Enter voltage so that there is voltage Ugs, Ugs is at low level, power tube Q1 at first between grid or base electrode and source electrode
In closed mode, the first power supply is used to give electric capacity C1 chargings, and after being full of, the first power-off, electric capacity C1 remains in that magnitude of voltage
U1, second source is in normally open, and before electric capacity C1 voltage drops to certain value, diode D1 is by second source
Voltage U2.As shown in figure 5, top curve represents the voltage timing waveform curve between power tube grid and source electrode, lower section in figure
Curve represents the electric current timing waveform curve between power tube grid and source electrode, and the two ends generation one of grid and source electrode is sufficiently high
Voltage Ugs, make power tube Q1 fully on, voltage U1 is loaded on continuous laser pipe 05 by electric capacity C1, produce dash current
Voltage U1 on I1, electric capacity drops to after certain value, diode D1 conductings, is powered by second source to laser tube D2, electric current is
Pulse current I2.
As it can be seen in figures 5 and 6, in the present embodiment, passage 1 is the waveform of pulse current, passage 2 is the hair of continuous laser pipe 05
Waveform.
As shown in figure 5, the rising for the laser waveform that conventional pulse current driving continuous laser pipe 05 is produced is very slow, greatly
About 6 microseconds, the reaction speed of its electric current to light is very slow, and pulse width can not reach microsecond rank.
As shown in fig. 6, pulse current is made up of dash current and pulsed illumination electric current two parts, compared with high impulse in passage 1
Part is dash current, and the relatively low segment pulse of amplitude is normal burst electric current, and the process for producing this kind of driving current is：By controlling
The control of device 01 converter 02 processed produces a surge voltage, and the current feedback amplifier of voltage control rear end produces the duration
For 800ns dash currents, electric current is highly 2.2 times of normal burst glow current, after 800ns, by the amplitude of surge voltage
The amplitude of normal burst light-emission control voltage is down to, the current feedback amplifier of control rear end produces normal burst electric current.
As can be seen that the rising edge for the laser waveform that dash current driving continuous laser pipe 05 is produced is more precipitous, laser
The luminous rising edge of device substantially accelerates, and accelerates response speed, and the rise time is as the width of dash current, and then increases
The pulse width of pulse laser so that the pulse width of high power laser light reaches microsecond rank, it is to avoid due to pulse current
Drive the rising of the laser waveform of the generation of continuous laser pipe 05 very slow, cause the problem of pulse width is narrow.
On the basis of above-mentioned pulse laser, the duration ranges of the dash current are the μ s of 1ns~1.
It is pointed out that the duration of dash current occupies pulse width, including but not limited to above-mentioned time model
Enclose, can be as needed controlled, in protection domain in the range of more than 1 μ s or less than 1ns.
On the basis of above-mentioned pulse laser, duration of the pulse current holds for nanosecond and Microsecond grade
The continuous time.
It is pointed out that the duration of pulse current determines the pulse width of pulse laser so that the arteries and veins of laser
It is more than nanosecond and microsecond rank, in protection domain to rush width.
On the basis of above-mentioned pulse laser, the wave-length coverage for the pulse laser that the continuous laser pipe 05 is produced
It can be any range, be set according to user's request, in protection domain.
The embodiment of each in specification is described by the way of progressive, and what each embodiment was stressed is and other realities
Apply the difference of example, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
Speech, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.
Specific case used herein is set forth to principle of the present utility model and embodiment, above example
Explanation be only intended to help and understand method of the present utility model and its core concept.It should be pointed out that for the art
For those of ordinary skill, on the premise of the utility model principle is not departed from, some change can also be carried out to the utility model
Enter and modify, these are improved and modification is also fallen into the utility model scope of the claims.
Claims (6)
1. a kind of pulse laser, it is characterised in that including：
Driver for generating dash current and pulse current, the dash current is more than the pulse current；
It is connected, swashs for generating the continuous of pulse laser according to the dash current and the pulse current with the driver
Light pipe.
2. pulse laser as claimed in claim 1, it is characterised in that the driver includes：
Converter for generating surge voltage signal and pulse voltage signal；
For the surge voltage signal to be converted into dash current, the pulse voltage signal is converted to the electricity of pulse current
Flow amplification module.
3. pulse laser as claimed in claim 2, it is characterised in that the Current amplifier module includes：
Operational amplifier is controlled, its forward end is connected with the output end of the converter, and backward end is connected with sampling resistor；
Power tube, its base electrode or grid are connected with the output end of the control operational amplifier, colelctor electrode or drain electrode and power supply
Connection, emitter stage or source electrode are connected with the continuous laser pipe；
The sampling resistor, its one end ground connection and described continuous is swashed at the backward end of the other end and the control operational amplifier
Light pipe is connected.
4. pulse laser as claimed in claim 1, it is characterised in that the driver includes：
Power tube, its grid or base electrode are connected with control end, and drain electrode or colelctor electrode are connected with the first power supply, source electrode or emitter stage
It is connected with the continuous laser pipe；
Electric capacity, the first end of the electric capacity is connected with first power supply and the drain electrode of the power tube or colelctor electrode, and second
End ground connection；
Diode, the anode of the diode is connected with second source, the first end and described first of negative electrode and the electric capacity
Power supply is connected.
5. the pulse laser as described in any one of Claims 1-4, it is characterised in that the duration of the dash current
Scope is the μ s of 1ns~1.
6. pulse laser as claimed in claim 5, it is characterised in that the duration of the pulse current be nanosecond or
The duration of person's Microsecond grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720170569.1U CN206558875U (en) | 2017-02-23 | 2017-02-23 | A kind of pulse laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720170569.1U CN206558875U (en) | 2017-02-23 | 2017-02-23 | A kind of pulse laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206558875U true CN206558875U (en) | 2017-10-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720170569.1U Withdrawn - After Issue CN206558875U (en) | 2017-02-23 | 2017-02-23 | A kind of pulse laser |
Country Status (1)
| Country | Link |
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| CN (1) | CN206558875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611932A (en) * | 2017-02-23 | 2017-05-03 | 成都麟鑫泰来科技有限公司 | Pulse laser and pulse laser control method |
| CN113196038A (en) * | 2018-11-27 | 2021-07-30 | 伊莱肯兹公司 | Gas sensor comprising a pulsed light source |
-
2017
- 2017-02-23 CN CN201720170569.1U patent/CN206558875U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611932A (en) * | 2017-02-23 | 2017-05-03 | 成都麟鑫泰来科技有限公司 | Pulse laser and pulse laser control method |
| CN106611932B (en) * | 2017-02-23 | 2019-12-27 | 成都麟鑫泰来科技有限公司 | Pulse laser and pulse laser control method |
| CN113196038A (en) * | 2018-11-27 | 2021-07-30 | 伊莱肯兹公司 | Gas sensor comprising a pulsed light source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171013 Effective date of abandoning: 20191227 |
|
| AV01 | Patent right actively abandoned |