CN205159783U - Pulsed laser beam combining device based on reputation deflects - Google Patents
Pulsed laser beam combining device based on reputation deflects Download PDFInfo
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- CN205159783U CN205159783U CN201520883107.5U CN201520883107U CN205159783U CN 205159783 U CN205159783 U CN 205159783U CN 201520883107 U CN201520883107 U CN 201520883107U CN 205159783 U CN205159783 U CN 205159783U
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Abstract
The utility model discloses a pulsed laser beam combining device based on reputation deflects, include: an acoustooptic crystal, an acoustooptic crystal drive circuit, first laser instrument, second laser instrument and synchrodyne, the delivery outlet of a first laser instrument and second laser instrument orientation electro -optical crystal, first laser instrument, second laser instrument and acoustooptic crystal drive circuit control by the synchrodyne, make a pulsed laser and the 2nd pulsed laser staggered on the time, a pulsed laser and electric pulse signal staggered on the time, the 2nd pulsed laser and electric pulse signal are synchronous, the utility model discloses improve pulse laser output's repetition rate and average power under the prerequisite that does not reduce pulse energy.
Description
Technical field
The utility model relates to superpower laser field, is specifically related to a kind of pulse laser beam merging apparatus based on audio-optical deflection.
Background technology
Along with development and the maturation of laser technology, high power laser light has to be applied more and more widely, has had a deep effect on the development of multiple industry.Divide high power laser light by working method and be mainly divided into high-peak power laser (i.e. high energy pulse laser) and high-average power laser.
For high energy pulse laser, require that laser has certain repetition rate in multiple application.But directly improve the repetition rate of high energy pulse laser operation, serious thermal effect will be produced, thus affect the performance of laser, even cause laser to export pulse energy and decline or can not work.For high-average power laser, application demand constantly proposes requirements at the higher level to laser output power, and single laser power ascension is limited, is difficult to realize higher average output power.
Therefore, no matter be for high energy pulse laser or for high-average power laser, the repetition rate improving pulse laser is all need the problem of solution badly.
Utility model content
For above-mentioned problems of the prior art, the utility model people thinks that close bundle by pulse laser solves this problem, for high energy pulse laser, sequential closes the repetition rate that bundle can improve laser pulse output, for high-average power laser, sequential closes the average power that bundle can improve Output of laser.The utility model provides a kind of pulse laser beam merging apparatus based on audio-optical deflection, the ingenious feature utilizing acousto-optic crystal, acousto-optic crystal drive circuit, synchronous motor and pulse laser of the utility model, multipath pulse laser is closed Shu Chengyi road laser, under the prerequisite not reducing pulse energy, improve repetition rate and the average power of pulse laser output.
For achieving the above object, the utility model provides following technical scheme:
Based on a pulse laser beam merging apparatus for audio-optical deflection, comprising:
First sound luminescent crystal;
First sound luminescent crystal drive circuit, described first sound luminescent crystal drive circuit is connected with described first sound luminescent crystal;
First laser, the laser output of described first laser is towards described first sound luminescent crystal;
Second laser, the laser output of described second laser is towards described first sound luminescent crystal, and described second laser and the first laser are positioned at the same side of first sound luminescent crystal;
Synchronous motor, described synchronous motor is connected with described first sound luminescent crystal drive circuit, described first laser and described second laser respectively.
Further, described first sound luminescent crystal drive circuit and rising tone luminescent crystal drive circuit comprise interconnective driver and electroacoustic transducer respectively, and the electroacoustic transducer of described first sound luminescent crystal is connected with described first sound luminescent crystal.
Further, the pulse laser that described first sound luminescent crystal surface is coated with described first laser exports carries out anti-reflection anti-reflection film.
Further, also comprise at least 1 the 3rd laser, at least 1 rising tone luminescent crystal and at least 1 rising tone luminescent crystal drive circuit, described rising tone luminescent crystal is connected with described rising tone luminescent crystal drive circuit, and described rising tone luminescent crystal is positioned at the first pulse laser exit direction.
The beneficial effects of the utility model are as follows:
(1) acousto-optic crystal, acousto-optic crystal drive circuit are combined with synchronous motor, ingeniously utilize the diffraction property of acousto-optic crystal and the feature of pulse laser, multipath pulse laser is closed Shu Chengyi road laser, under the prerequisite not reducing pulse energy, improve repetition rate and the average power of pulse laser output;
(2) by synchronous motor to the control in multipath pulse laser sequential, identical or different conjunction bundle of pulsed laser interpulse period can be obtained;
(3) first pulse lasers impinge perpendicularly on acousto-optic crystal, and at acousto-optic crystal surface coating, reduce reflection and the refraction of laser, reduce the energy loss of pulse laser to greatest extent;
(4) adopt at least 1 the 3rd laser, at least 1 rising tone luminescent crystal and at least 1 rising tone luminescent crystal drive circuit, realize the series connection of beam merging apparatus, reach multistage object of closing bundle;
(5) acousto-optic crystal drive circuit output electric pulse signal, controls acousto-optic crystal and produces periodic Bragg grating, reach the first pulse laser transmission, to the effect of the second pulse laser diffraction;
(6) pulse laser that laser exports for the pulse of reruning, also can be able to be single pulse, can have the characteristics such as different pulse shape, pulse duration, wavelength, spectral width, chirping characteristics, amplitude.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of beam merging apparatus of the present utility model;
Fig. 2 is pulse laser of the present utility model and electric impulse signal timing diagram.
In figure: 11-first sound luminescent crystal, 12-rising tone luminescent crystal, 13-the three acousto-optic crystal, 21-first sound luminescent crystal drive circuit, 210-electric impulse signal, 22-rising tone luminescent crystal drive circuit, 220-electric impulse signal, 23-the three acousto-optic crystal drive circuit, 230-electric impulse signal, 31-the first laser, 32-second laser, 33-the three laser, 34-the four laser, 4-synchronous motor, 5-laser alignment element, 311-the first pulse laser, 321-the second pulse laser, 331-the three pulse laser, 341-the four pulse laser, 6-close bundle of pulsed laser.
Embodiment
The technical solution of the utility model is understood better in order to make those skilled in the art; below in conjunction with accompanying drawing of the present utility model; clear, complete description is carried out to the technical solution of the utility model; based on the embodiment in the application; other roughly the same embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all should belong to the scope of the application's protection.
Embodiment one:
As shown in Figure 1, based on a pulse laser beam merging apparatus for audio-optical deflection, comprising: first sound luminescent crystal 11, rising tone luminescent crystal 12, the 3rd acousto-optic crystal 13, first sound luminescent crystal drive circuit 21, rising tone luminescent crystal drive circuit the 22, the 3rd acousto-optic crystal drive circuit 23, first laser 31, second laser 32, the 3rd laser 33, the 4th laser 34, synchronous motor 4 and laser alignment element 5.Described first sound luminescent crystal drive circuit 21 is connected with described first sound luminescent crystal 11, described rising tone luminescent crystal drive circuit 22 is connected with described rising tone luminescent crystal 12, described 3rd acousto-optic crystal drive circuit 23 is connected with described 3rd acousto-optic crystal 13, described acousto-optic crystal drive circuit comprises interconnective driver and electroacoustic transducer, described driver output electric pulse signal, electroacoustic transducer is converted into ultrasonic wave, electroacoustic transducer is connected with described acousto-optic crystal, by ultrasonic pressing on acousto-optic crystal, acousto-optic crystal is made to produce Bragg grating, reach the object of paired pulses laser diffraction.Acousto-optic crystal is identical with the number of acousto-optic crystal drive circuit, guarantees that each acousto-optic crystal acousto-optic crystal-driven circuit is driven.The laser output of described first laser 31 is towards the plane of incidence of described first sound luminescent crystal 11, described first sound luminescent crystal 11 surface is coated with the anti-reflection film to the first pulse laser 311 that described first laser 31 exports, first pulse laser 311 incides first sound luminescent crystal 11, in order to diffraction can carry out smoothly, first pulse laser 311 is 60-80 ° with the angle of the plane of incidence, and at first sound luminescent crystal 11 surface coating, reduce reflection and the refraction of laser, reduce the energy loss of the first pulse laser 311 to greatest extent.The laser output of described second laser 32, the 3rd laser 33 and the 4th laser 34 is respectively towards first sound luminescent crystal 11, rising tone luminescent crystal 12 and the 3rd acousto-optic crystal 13.Use multiple acousto-optic crystal and acousto-optic crystal drive circuit, realize the series connection of beam merging apparatus, reach multistage object of closing bundle.
Described synchronous motor 4 is connected with first sound luminescent crystal drive circuit 21, rising tone luminescent crystal drive circuit the 22, the 3rd acousto-optic crystal drive circuit 23, first laser 31, second laser 32, the 3rd laser 33, the 4th laser 34 respectively.The first pulse laser 311 outgoing side of described first sound luminescent crystal 11 is located at by described laser alignment element 5, after namely pulse laser is exported by laser, first incides acousto-optic crystal, reenters and be mapped to laser alignment element 5.
Separately, the utility model also provides a kind of method utilizing above-mentioned beam merging apparatus to carry out pulse laser conjunction bundle, comprises the following steps:
(1) as shown in Figure 2, first laser 31 exports the first pulse laser 311, first pulse laser 311 is pulse lasers of repetition rate, wherein 2 pulses are only illustrated in Fig. 2, first pulse of described first pulse laser 311 is incided on the plane of incidence of first sound luminescent crystal 11, first sound luminescent crystal drive circuit 21 does not apply the signal of telecommunication to first sound luminescent crystal 11, by the exit facet outgoing of described first sound luminescent crystal 11 after this pulse transmission;
(2) first sound luminescent crystal drive circuit 21 output electric pulse signal 210, first sound luminescent crystal 11 produces Bragg grating under the effect of electric impulse signal 210, second laser 32 exports the second pulse laser 321, second pulse laser 321 is pulse lasers of repetition rate, wherein 2 pulses are only illustrated in Fig. 2, first pulse of the second pulse laser 321 is incided on the described plane of incidence, diffraction is there is in the second pulse laser 321 at first sound luminescent crystal 11, after diffraction, in described first pulse laser 311 exit position outgoing, and the transmission direction after the second pulse laser 321 outgoing is identical with the first pulse laser 311, obtain closing bundle of pulsed laser,
(3) the conjunction bundle of pulsed laser obtained by step (2) is as the first pulse laser 311, when applying electric impulse signal 220 to rising tone luminescent crystal 12, continue transmitted through rising tone luminescent crystal 12, 3rd laser 33 exports the 3rd pulse laser 331, 3rd pulse laser 331 is pulse lasers of repetition rate, 2 pulses are only illustrated in Fig. 2, first pulse of the 3rd pulse laser 331 is when rising tone luminescent crystal 12, rising tone light drive circuit 22 output electric pulse signal 220 is also applied on the second electrooptic crystal 12, when first pulse of the 3rd pulse laser 331 is through rising tone luminescent crystal 12, diffraction is there is at rising tone luminescent crystal 12, obtain secondary and close bundle of pulsed laser, namely described step (1) and (2) 2 times are repeated, obtain final conjunction bundle of pulsed laser.
(4) described conjunction bundle of pulsed laser is finally after laser alignment element 5, exports and closes bundle of pulsed laser 6.
For its after pulse of the first pulse laser 311, second pulse laser 321 and the 3rd pulse laser 331, similar with above-mentioned first pulse, only be described at the conjunction bundle at the first electrooptic crystal 11 place with regard to the first pulse laser 311 and the second pulse laser 321 below: first, first pulse of the first pulse laser 311 is through the first electrooptic crystal 11, electric impulse signal 210 is not loaded to the first electrooptic crystal 11, secondly, first pulse of the second pulse laser 321, through the first electrooptic crystal 11, loads electric impulse signal 210 to the first electrooptic crystal 11; Then, second pulse of the first pulse laser 311 is through the first electrooptic crystal 11, electric impulse signal 210 is not loaded to the first electrooptic crystal 11, finally, second pulse of the second pulse laser 321 is through the first electrooptic crystal 11, electric impulse signal 210 is loaded to the first electrooptic crystal 11, for pulse afterwards, carries out successively.
In above-mentioned steps, the plane of incidence of described first pulse laser 311 and the plane of incidence of described second pulse laser 321 are the face of same first sound luminescent crystal 11, described laser and acousto-optic crystal drive circuit control by synchronous motor 4, described laser pulse is staggered in time, described first pulse laser 311 staggers in time with electric impulse signal 210, namely the first pulse laser 311 is through acousto-optic crystal, electric impulse signal 210 is not loaded to acousto-optic crystal, between the pulse of the second pulse laser 321, the time interval is identical with the time interval of electric impulse signal 210, between the pulse of the 3rd pulse laser 331, the time interval is identical with the time interval of electric impulse signal 220, between the pulse of the 4th pulse laser 341, the time interval is identical with the time interval of electric impulse signal 230.Because acousto-optic crystal exists the response time, so electric impulse signal 210 is in time slightly early than the second pulse laser 321, electric impulse signal 220 is in time slightly early than the 3rd pulse laser 331, electric impulse signal 230 is in time slightly early than the 4th pulse laser 341, by synchronous motor 4 to the control in 4 road pulse laser sequential, different conjunction bundle of pulsed laser 6 interpulse period can be obtained.First can carry out step (1) in above-mentioned steps and carry out step (2) again, also first can carry out step (2) and carry out step (1) again.Acousto-optic crystal, acousto-optic crystal drive circuit combine with synchronous motor 4 by the utility model, ingeniously utilize the diffraction property of acousto-optic crystal and the feature of pulse laser, multipath pulse laser is closed Shu Chengyi road laser, under the prerequisite not reducing pulse energy, improve repetition rate and the average power of pulse laser output.
Acousto-optic crystal is for mixing rubidium yag crystal, sapphire crystal, lithium iodate, germanium crystal, Crystals of Lead Molybdate, molybdic acid two leading crystal, tellurium dioxide crystal, lead germanate-vanadite crystal, mercuric sulphide crystal or calogreen crystal, and the present embodiment preferably mixes rubidium yag crystal.
The present embodiment adopts above-mentioned pulse laser beam merging apparatus and method, conjunction bundle is carried out to 4 road pulse lasers as shown in Figure 2, first pulse laser 311, second pulse laser 321, the 3rd pulse laser 331 and the 4th pulse laser 341 are pulse train, pulse shape is different, pulse duration is different, obtains the conjunction bundle of pulsed laser 6 that pulse repetition frequency and average power all improve after closing bundle.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (4)
1., based on a pulse laser beam merging apparatus for audio-optical deflection, it is characterized in that, comprising:
First sound luminescent crystal;
First sound luminescent crystal drive circuit, described first sound luminescent crystal drive circuit is connected with described first sound luminescent crystal;
First laser, the laser output of described first laser is towards described first sound luminescent crystal;
Second laser, the laser output of described second laser is towards described first sound luminescent crystal, and described second laser and the first laser are positioned at the same side of first sound luminescent crystal;
Synchronous motor, described synchronous motor is connected with described first sound luminescent crystal drive circuit, described first laser and described second laser respectively.
2. the pulse laser beam merging apparatus based on audio-optical deflection according to claim 1, it is characterized in that, described first sound luminescent crystal drive circuit and rising tone luminescent crystal drive circuit comprise interconnective driver and electroacoustic transducer respectively, and the electroacoustic transducer of described first sound luminescent crystal is connected with described first sound luminescent crystal.
3. the pulse laser beam merging apparatus based on audio-optical deflection according to claim 2, is characterized in that, the pulse laser that described first sound luminescent crystal surface is coated with described first laser exports carries out anti-reflection anti-reflection film.
4. according to the arbitrary described pulse laser beam merging apparatus based on audio-optical deflection of claim 1-3, it is characterized in that, also comprise at least 1 the 3rd laser, at least 1 rising tone luminescent crystal and at least 1 rising tone luminescent crystal drive circuit, described rising tone luminescent crystal is connected with described rising tone luminescent crystal drive circuit, and described rising tone luminescent crystal is positioned at the first pulse laser exit direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520883107.5U CN205159783U (en) | 2015-11-06 | 2015-11-06 | Pulsed laser beam combining device based on reputation deflects |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520883107.5U CN205159783U (en) | 2015-11-06 | 2015-11-06 | Pulsed laser beam combining device based on reputation deflects |
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| CN205159783U true CN205159783U (en) | 2016-04-13 |
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| CN201520883107.5U Expired - Fee Related CN205159783U (en) | 2015-11-06 | 2015-11-06 | Pulsed laser beam combining device based on reputation deflects |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226493A (en) * | 2015-11-06 | 2016-01-06 | 中国工程物理研究院激光聚变研究中心 | A kind of pulse laser beam merging apparatus based on audio-optical deflection and method thereof |
-
2015
- 2015-11-06 CN CN201520883107.5U patent/CN205159783U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226493A (en) * | 2015-11-06 | 2016-01-06 | 中国工程物理研究院激光聚变研究中心 | A kind of pulse laser beam merging apparatus based on audio-optical deflection and method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |