CN207705565U - A kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output - Google Patents
A kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output Download PDFInfo
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- CN207705565U CN207705565U CN201820486608.3U CN201820486608U CN207705565U CN 207705565 U CN207705565 U CN 207705565U CN 201820486608 U CN201820486608 U CN 201820486608U CN 207705565 U CN207705565 U CN 207705565U
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Abstract
The utility model provides a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output, and the laser includes the first total reflective mirror, electro-optic Q-switched crystal, Brewster polariscope, folds hysteroscope, acousto-optic Q modulation switch, LD target bars array, quartz polarization circulator, Nd:YAG crystal bars, the second total reflective mirror, frequency-doubling crystal and outgoing mirror；First total reflective mirror, electro-optic Q-switched crystal, Brewster polariscope and folding hysteroscope coaxial arrangement, the folding hysteroscope, acousto-optic Q modulation switch, LD target bars array, quartz polarization circulator and outgoing mirror coaxial arrangement, the outgoing mirror, frequency-doubling crystal and the coaxial arrangement of the second total reflective mirror.The utility model design uses " Z " type refrative cavity, shortens equipment size, wherein 1 piece of refrative mirror as inner cavity frequency-doubling laser output mirror, keeps high light phototranstormation efficiency and shg efficiency under acousto-optic Q modulation mode.
Description
Technical field
The utility model is related to field of laser device technology, and in particular to a kind of sound using electrooptical switching control laser output
Light q-multiplier solid state laser.
Background technology
In the application fields such as laser processing, laser radar, using acousto-optic Q modulation high power QCW diode-pumped lasers,
Frequent switching laser beam is needed to export on off state.
Acousto-optic Q modulation is to pass through the acousto-optic medium (being typically fused silica material) modulated by ultrasonic wave using light and formed
Equivalent optical phase grating when generate diffraction effect principle, when in acousto-optic medium load ultrasonic wave when, because light diffraction make
With making intracavitary in high loss low reactance-resistance ratio state, in laser gain medium on Doped ions level inversion population be able to it is largely poly-
Collection, row is to sometime, and after removing ultrasonic wave suddenly, diffraction effect disappears, and can instantaneously export pulse laser.
Based on above-mentioned principle, the quasi-continuous pulse laser that acousto-optic Q modulation laser is easily achieved kHz magnitudes exports, but for
Under special occasions, when needing laser intermittent work, the confession usually by the stopping of transience to LD pump modules in laser
Electricity interrupts laser light extraction, then rapid loading current again, frequently repeats switching electric current and realizes laser controlling.When this situation
Under, from electronics angle analysis, laser driven power supply is likely to occur because signal generates instantaneous high spike after switching rapidly
There is the potential risk that irreversible damage is caused to laser if overcurrent will damage LD pump modules in pulse current；From
Physics angle analysis, due to the thermally induced birefringence of laser crystal bar and the objective reality of thermal lensing effect, laser is leading to every time
After electricity, the heat distribution of laser crystal bar both axially and radially all difference, it usually needs could be reached after in one section of light extraction
The thermal balance stable state opposite to one, when after energization-power-off-and when being powered, this section of heat distribution tends to the time of stable state every time
Be bound to difference, and will tend to a new thermal balance stable state being different under last energized state every time, this is also resulted in
Every time output laser beam quality also can inconsistent or even laser exit direction may be trembled in central optical axis a certain range
Dynamic, i.e., laser emitting nonparallelism is inconsistent, can be from CCD imaging faculas especially in high power, high recurrent frequency pulse laser device
On will become apparent from representation of laser facula irregular variation be presented always, and spot center can also follow floating.
Problem described above is higher to certain required precisions in certain laser accurate marks, Laser focus application
Application scenario under, laser focal spot change in size or facula position may be caused to change, laser processing quality is affected；
This also tends to be that fraction of laser light marking equipment is easy one of to be out of order or the main reason for laser is burnt occur.Another party
Face, in military laser imaging radar, when being related to long distance laser Active Imaging, laser beam matter that the above problem is caused
Amount and the inconsistent problem of optical axis may also impact tracking target or image quality.
Utility model content
To overcome the problems, such as at least to a certain extent present in the relevant technologies, the application offer is a kind of to utilize electrooptical switching
Control the acousto-optic Q modulation frequency double laser of laser output.Using the electrooptic effect of electro-optic Q-switched crystal, realization is to laser output and not
Output is frequently switched fast control, to achieve the purpose that protect laser and extend the service life of laser have simultaneously
Conducive to the stability and consistency of raising laser beam focal spot size and position.
The purpose of this utility model is realized using following technical proposals：
A kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output, it is improved in that described swash
Light device includes the first total reflective mirror 1, electro-optic Q-switched crystal 2, Brewster polariscope 4, folds hysteroscope 5, acousto-optic Q modulation switch 6, LD targets
Strip array 7, quartz polarization circulator 8, Nd:YAG crystal bars 9, the second total reflective mirror 10, frequency-doubling crystal 11 and outgoing mirror 12；It is described
First total reflective mirror 1, electro-optic Q-switched crystal 2, Brewster polariscope 4 and folding hysteroscope 5 are coaxially disposed, the folding hysteroscope 5, sound
Light Q-switch 6, LD target bars array 7, quartz polarization circulator 8 and outgoing mirror 12 are coaxially disposed, and the outgoing mirror 12, frequency multiplication are brilliant
Body 11 and the coaxial arrangement of the second total reflective mirror 10.
Further, the laser further includes the wave plates of λ/4 3, first total reflective mirror 1, electro-optic Q-switched crystal 2, the waves of λ/4
Piece 3, Brewster polariscope 4 and folding hysteroscope 5 are coaxially disposed.
Further, the laser further includes the polarizer 14 for replacing Brewster polariscope 4, and described first is complete
Anti- mirror 1, electro-optic Q-switched crystal 2, the polarizer 14 and folding hysteroscope 5 are coaxially disposed.
Further, the laser further includes analyzer 13, first total reflective mirror 1, analyzer 13, electric-optically Q-switched crystalline substance
Body 2, the polarizer 14 and folding hysteroscope 5 are coaxially disposed.
Further, first total reflective mirror, 1 and second total reflective mirror 10 is arranged in parallel, the folding hysteroscope 5 and outgoing mirror
12 are arranged in parallel, and first total reflective mirror 1, folding hysteroscope 5, outgoing mirror 12 and the second total reflective mirror 10 collectively form Z-type chamber, intracavitary
The angle folding of the folding hysteroscope 5 and outgoing mirror 12 is disposed as 12 °.
Further, it has coaxially been sequentially placed between the first total reflective mirror 1 described in the intracavitary and folding hysteroscope 5 electric-optically Q-switched
The wave plate of crystal 2, λ/4 3 and Brewster polariscope 4；The Brewster polariscope 4 is placed with optical axis at 56.3 ° of angles, is used for
Generate line polarisation.
Further, it is folded described in the intracavitary between hysteroscope 5 and outgoing mirror 12 and is coaxially sequentially placed acousto-optic Q-switch
6, LD target bars array 7, quartz polarization circulator 8 and Nd:YAG crystal bars 9；The Nd:YAG crystal bars 9 are arranged in the LD targets
7 intermediate position of strip array, the Nd:8 vertical connection of quartz polarization circulator of YAG crystal bars 9 and 90 ° of rotations, the frequency multiplication
Crystal 11 is individually placed between outgoing mirror 12 and the second total reflective mirror 10.
Further, two LD target bars arrays 7 are pumping source, corresponding Nd:YAG crystal bars 9 use two-rod series connection,
And 90 ° of rotating quartz polarization rotators 8 are inserted among two sticks.
Further, first total reflective mirror, 1 and second total reflective mirror 10 is concave mirror, the folding hysteroscope 5 and outgoing mirror
12 be plane mirror.
Further, first total reflective mirror 1, the second total reflective mirror 10 and folding hysteroscope 5 are coated with 1064nm high-reflecting films；It is described
12 inner surface of outgoing mirror plates 1064nm high-reflecting films, 532nm spectro-films, and 532nm anti-reflection films are plated in outer surface.
In order to the embodiment to disclosure some aspects there are one basic understanding, simple summary is shown below.It should
Summarized section is not extensive overview, nor to determine key/critical component or describe the protection domain of these embodiments.
Its sole purpose is that some concepts are presented with simple form, in this, as the preamble of following detailed description.
Compared with the immediate prior art, the excellent effect that technical solution provided by the utility model has is：
The utility model design uses " Z " type refrative cavity, shortens equipment size, wherein 1 piece of refrative mirror is as inner cavity frequency-doubling
Laser output mirror keeps high light phototranstormation efficiency and shg efficiency under acousto-optic Q modulation mode；It is placed with electricity simultaneously in resonant cavity
Light adjusting Q crystal and acousto-optic Q-switch, wherein electro-optic Q-switched crystal and high-voltage power module constitute electro-optic Q switch, using pressurization
Formula realizes the control of electro-optic Q-switched crystal, and acousto-optic Q modulation switch is then by electroacoustic transducer, acousto-optic medium, sound-absorbing material and driving electricity
Source forms, and the driving power of the two independently controls.
Before electro-optic Q-switched crystal loads high pressure, the polarization light polarization side before and after the wave plates of λ/4 by Brewster polariscope sum
To being mutually perpendicular to, laser generation in resonant cavity is prevented, laser does not export at this time；After loading high pressure on electro-optic Q-switched crystal, by
In the effect of electrooptic effect, after polarization optical vibration direction is rotated by 90 ° and original consistent, intracavitary forms oscillation, you can exports laser.
Therefore under the premise of normal control acousto-optic Q modulation switchs, the high pressure on electro-optic Q-switched crystal is loaded by the way that switching control is manually set
High-responsivity, the high accuracy control that laser is exported to laser can be realized.
The utility model can realize the control exported to pulse laser in the case where not cutting off the power supply of LD pump modules, can
It avoids impacting the overcurrent of LD pump modules due to power supply or trigger signal switching moment issuable momentary spike electric current, rise
To the effect of protection LD pump modules, laser device reliability is improved, and extends the service life of laser to a certain extent, especially
It is the pulse laser for Gao Zhongying, high power operation.
The utility model controls the output and shutdown of laser by electro-optic Q-switched crystal, and the LD in laser is kept to pump mould
Block is in power supply state always under equipment current work, may make and maintains its constant thermal balance stable state inside crystal bar, has
Conducive to the stability and consistency of raising laser output beam quality.This can play field of laser processing in commercial Application
To the effect for improving machining accuracy, in military use, be conducive to improve calibration of the laser imaging radar for distant object
With scouting accuracy.
For above-mentioned and relevant purpose, certain illustrative aspects are described in detail in the following description and the annexed drawings, and
Some modes in its only utilizable various mode of principle of each embodiment indicated.Other benefits and novelty
Property feature by as following detailed description is considered in conjunction with the accompanying and becomes apparent, the disclosed embodiments be to include it is all this
A little aspects and they be equal.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
Fig. 1 is a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output provided by the utility model
Second optimal technical scheme structural schematic diagram；
Fig. 2 is a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output provided by the utility model
First optimal technical scheme structural schematic diagram；
Fig. 3 is a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output provided by the utility model
Third optimal technical scheme structural schematic diagram；
Fig. 4 is a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output provided by the utility model
4th optimal technical scheme structural schematic diagram；
In figure, the first total reflective mirrors of 1- 1；2- electro-optic Q-switched crystals；The wave plates of 3- λ/4；4- Brewster polariscopes；5- refrative cavities
Mirror；6- acousto-optic Q modulations switch；7-LD target bar arrays；8- quartz polarization circulators；9-Nd:YAG crystal bars；The second total reflective mirrors of 10-；
11- frequency-doubling crystals；12- outgoing mirrors；13- analyzers；The 14- polarizers.
Specific implementation mode
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
The following description and drawings fully show the specific embodiment of the utility model, so that those skilled in the art
Them can be put into practice.Other embodiments may include structure, logic, it is electrical, process and other change.It is real
It applies example and only represents possible variation.Unless explicitly requested, otherwise individual component and function are optional, and the sequence operated
It can change.The part of embodiment and feature can be included in or replace part and the feature of other embodiments.This reality
Range with novel embodiment include claims entire scope and claims it is all obtainable etc.
Jljl.Herein, these embodiments of the utility model can be by individually or generally with term " utility model " come table
Show, this, if in fact disclosing the utility model more than one, is not meant to automatically limit this just for the sake of convenient
Ranging from any single utility model or the utility model design of application.
First preferred embodiment
As shown in Figure 1, a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output, the laser
Including the first total reflective mirror 1, electro-optic Q-switched crystal 2, Brewster polariscope 4, fold hysteroscope 5, acousto-optic Q modulation switch 6, LD target bar battle arrays
Row 7, quartz polarization circulator 8, Nd:YAG crystal bars 9, the second total reflective mirror 10, frequency-doubling crystal 11, outgoing mirror 12；Described first is complete
Anti- mirror 1, Brewster polariscope 4, folds the coaxial arrangement of hysteroscope 5 at electro-optic Q-switched crystal 2, and the folding hysteroscope 5, acousto-optic Q modulation are opened
Close 6, LD target bars array 7, the coaxial arrangement of 8 outgoing mirror 12 of quartz polarization circulator, the outgoing mirror 12, frequency-doubling crystal 11 and second
Total reflective mirror 10 is coaxially disposed.
In above-mentioned technical proposal, the laser further includes the wave plates of λ/4 3, first total reflective mirror 1, electro-optic Q-switched crystal 2,
The wave plates of λ/4 3, Brewster polariscope 4 fold the coaxial arrangement of hysteroscope 5.
In above-mentioned technical proposal, the laser further includes the polarizer 14 for replacing Brewster polariscope 4, described
First total reflective mirror 1, electro-optic Q-switched crystal 2, the polarizer 14 and folding hysteroscope 5 are coaxially disposed.
In above-mentioned technical proposal, the laser further includes analyzer 13, first total reflective mirror 1, analyzer 13, electric light
Adjusting Q crystal 2, the polarizer 14 and folding hysteroscope 5 are coaxially disposed.
In above-mentioned technical proposal, first total reflective mirror, 1 and second total reflective mirror 10 is arranged in parallel, 5 He of folding hysteroscope
Outgoing mirror 12 is arranged in parallel, and first total reflective mirror 1, folding hysteroscope 5, outgoing mirror 12 and the second total reflective mirror 10 collectively form Z-type
Chamber, hysteroscope 5 is folded described in intracavitary and the angle folding of outgoing mirror 12 is disposed as 12 °.
In above-mentioned technical proposal, electricity has coaxially been sequentially placed between the first total reflective mirror 1 described in the intracavitary and folding hysteroscope 5
The wave plate of light adjusting Q crystal 2, λ/4 3 and Brewster polariscope 4；The wave plates of λ/4 3 and Brewster polariscope 4 and electro-optic Q-switched crystal 2
Collective effect realizes the control exported to laser, wherein Brewster polariscope 4 is placed with optical axis at 56.3 ° of angles, is used
In generation line polarisation.Wherein, electro-optic Q-switched crystal 2 is made of electro-optic Q-switched crystal 2 and high-voltage power module, and real using adding pressure type
Existing electro-optic Q-switched crystal control.
It is folded in above-mentioned technical proposal, described in the intracavitary between hysteroscope 5 and outgoing mirror 12 and is coaxially sequentially placed acousto-optic
Q-switch 6, LD target bars array 7, quartz polarization circulator 8 and Nd:YAG crystal bars 9；The Nd:YAG crystal bars 9 are arranged in institute
State 7 intermediate position of LD target bars array, the Nd:8 vertical connection of quartz polarization circulator of YAG crystal bars 9 and 90 ° of rotations, institute
Frequency-doubling crystal 11 is stated to be individually placed between outgoing mirror 12 and the second total reflective mirror 10.Wherein, the frequency-doubling crystal 11 can individually incite somebody to action
Fundamental frequency light and frequency doubled light separate, and absorption of the gain crystal to frequency doubled light are reduced, to improve the light phototranstormation efficiency of fundamental frequency light.
In above-mentioned technical proposal, two LD target bars arrays 7 are pumping source, corresponding Nd:YAG crystal bars 9 are using double
Stick concatenates, and 90 ° of rotating quartz polarization rotators 8 are inserted among two sticks, for compensating by thermotropic stress birfringence and double heat
Depolarization caused by lens effect.
In above-mentioned technical proposal, first total reflective mirror, 1 and second total reflective mirror 10 is concave mirror, 5 He of folding hysteroscope
Outgoing mirror 12 is plane mirror.First total reflective mirror 1, the second total reflective mirror 10 and folding hysteroscope 5 are coated with 1064nm high-reflecting films；It is described
12 inner surface of outgoing mirror plates 1064nm high-reflecting films, 532nm spectro-films, and 532nm anti-reflection films are plated in outer surface.
The utility model is that is, after loading high pressure on electro-optic Q-switched crystal 2, to be exported laser using adding pressure type, remove high pressure
Afterwards, laser stops output, adds high pressure as the voltages of λ/4, and is realized using the wave plates of λ/4 3 and Brewster polariscope 4 sharp to intracavitary
The control of light output.
Realize that the basic principle of laser output is using electric-optically Q-switched involved by the utility model：When laser passes through cloth scholar
After this special polariscope, p-component line polarisation, when not loading high voltage power supply on electro-optic Q-switched crystal, above-mentioned p-component line polarisation are generated
Tracavity optical is prevented to vibrate via s component line polarisations are become after the wave plates of λ/4 twice back and forth, acousto-optic Q modulation switch is not also defeated after opening
Go out laser；After loading λ/4 wave voltage on electro-optic Q-switched crystal, since electro-optic Q-switched crystal will produce under certain electric field action
Electrooptic effect, the round-trip phase-delay quantity by causing π twice, can make s components line polarisation synthesize p-component line again herein
Polarisation, the optics oscillation of intracavitary formation at this time, exportable laser.
In conclusion laser power supply is kept, while the ultrasonic field of acousto-optic Q is controlled by predeterminated frequency, laser output
Or the control interrupted can be without going through the power supply of cut-out laser, as long as controlling program by setting switches electro-optic Q-switched crystal
High-voltage trigger signal can be realized.Thus it can avoid because to laser caused by laser driven power supply high-frequency switching institute is possible
The damage of LD pump modules, simultaneously as laser keeps power supply state, in laser the heat distribution of crystal bar maintain always
One fixation or relatively stable equilibrium state, it is ensured that the beam quality of laser and the consistency of emergent light axis.
Second preferred embodiment
As shown in Fig. 2, the utility model is on the basis of the first preferred embodiment, the wave plates of λ/4 3 are removed, other keep not
Become.
The same load voltages of λ/4 export, it can be achieved that moving back pressure type control endovenous laser, i.e., ought remove on electro-optic Q-switched crystal 2
After voltage, endovenous laser output.Just start, after laser is powered, intracavitary spontaneous emission light is produced by Brewster polariscope 4
Raw p-component line polarisation, it is round-trip by twice, phase difference π becomes after being loaded with the electro-optic Q-switched crystal 2 of the voltages of λ/4
S component line polarisations fail through Brewster polariscope, and intracavitary can not form oscillation, no laser output；It is electric-optically Q-switched when removing
After high pressure on crystal 2, intracavitary is still p-component line polarisation, can form oscillation by Brewster polariscope, intracavitary, output swashs
Light.In this way, passing through the high pressure of programming Control electro-optic Q-switched crystal 2, you can control laser output.
Third preferred embodiment
This preferred embodiment also uses adding pressure type to realize electro-optic Q-switched crystal control, as shown in figure 3, being different from the first preferred side
Case uses the polarizer 14 and analyzer 13 herein, substitutes the wave plates of λ/4 3 and Brewster polariscope 4 in the first preferred embodiment,
And the pressurization of electro-optic Q-switched crystal 2 plus be the voltages of λ/2, in the first preferred embodiment and the second preferred embodiment plus the voltages of λ/4.
In this preferred embodiment, the polarization direction of the polarizer 14 and analyzer 13 is mutually orthogonal, when electro-optic Q-switched crystal 2 does not add
The voltages of λ/2 are carried, intracavitary can not be prevented to vibrate by analyzer 13 by the line polarisation of the polarizer 14, be exported at this time without laser；When
Electro-optic Q-switched crystal 2 is powered after the load voltages of λ/2, and because electrooptic effect generates the phase difference of π, line polarisation direction of vibration is rotated by 90 °,
Oscillation can be formed by the analyzer 13 orthogonal with the polarizer 14, intracavitary, export laser.
Equally, pass through the high pressure of programming Control electro-optic Q-switched crystal 2, you can control laser output.
4th preferred embodiment
As shown in figure 4, the utility model is using pressure type is moved back, it is to remove analyzer 13 on the basis of third preferred embodiment, by
Electro-optic Q-switched crystal 2 and the polarizer 14 form electro-optic Q switch, realize the control exported to resonant cavity laser, and be different from third
Also residing in for preferred embodiment is added high pressure herein as the voltages of λ/4.When the line polarisation for passing through the polarizer 14 passes twice through load back and forth
When having the electro-optic Q-switched crystal 2 of the voltages of λ/4, since the phase difference that electrooptic effect generates π makes line polarisation direction of vibration be rotated by 90 °,
Fail through the polarizer 14, intracavitary can not vibrate at this time, no laser output, when removing the voltages of the λ on electro-optic Q-switched crystal 2/4, line
Polarisation direction of vibration restores initial, can form oscillation by the polarizer 14, intracavitary, export laser.
Equally, pass through the high pressure of programming Control electro-optic Q-switched crystal 2, you can control laser output.
In above-mentioned detailed description, various features are combined together in single embodiment, to simplify the disclosure.No
This published method should be construed to reflect such intention, that is, the embodiment of theme claimed needs clear
The more features of feature stated in each claim to Chu.On the contrary, that reflected such as appended claims
Sample, the utility model are in the state fewer than whole features of disclosed single embodiment.Therefore, the attached claims
Book is hereby expressly incorporated into detailed description, and wherein each claim is individually preferably implemented as the utility model alone
Scheme.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model rather than limits it
System, although the utility model is described in detail with reference to above-described embodiment, those of ordinary skill in the art are still
Specific embodiment of the present utility model can be modified or replaced equivalently, these without departing from the spirit of the present invention and
Any modification of range or equivalent replacement, within the claims for applying for pending the utility model.
Claims (10)
1. a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output, which is characterized in that the laser packet
Include the first total reflective mirror (1), electro-optic Q-switched crystal (2), Brewster polariscope (4), fold hysteroscope (5), acousto-optic Q modulation switch (6),
LD target bars array (7), quartz polarization circulator (8), Nd:YAG crystal bars (9), the second total reflective mirror (10), frequency-doubling crystal (11) and
Outgoing mirror (12)；First total reflective mirror (1), electro-optic Q-switched crystal (2), Brewster polariscope (4) and folding hysteroscope (5) are same
Axis is arranged, the folding hysteroscope (5), acousto-optic Q modulation switch (6), LD target bars array (7), quartz polarization circulator (8) and outgoing mirror
(12) it is coaxially disposed, the outgoing mirror (12), frequency-doubling crystal (11) and the second total reflective mirror (10) coaxial arrangement.
2. a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output as described in claim 1, feature
Be, the laser further includes the wave plates of λ/4 (3), first total reflective mirror (1), electro-optic Q-switched crystal (2), the wave plates of λ/4 (3),
Brewster polariscope (4) and folding hysteroscope (5) are coaxially disposed.
3. a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output as described in claim 1, feature
Be, the laser further include for replacing the polarizer of Brewster polariscope (4) (14), first total reflective mirror (1),
Electro-optic Q-switched crystal (2), the polarizer (14) and folding hysteroscope (5) are coaxially disposed.
4. a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output as claimed in claim 3, feature
Be, the laser further includes analyzer (13), first total reflective mirror (1), analyzer (13), electro-optic Q-switched crystal (2),
The polarizer (14) and folding hysteroscope (5) are coaxially disposed.
5. a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output as described in claim 1, feature
It is, first total reflective mirror (1) and the second total reflective mirror (10) are arranged in parallel, and the folding hysteroscope (5) and outgoing mirror (12) are flat
Row setting, first total reflective mirror (1), folding hysteroscope (5), outgoing mirror (12) and the second total reflective mirror (10) collectively form Z-type chamber,
Hysteroscope (5) is folded described in intracavitary and the angle folding of outgoing mirror (12) is disposed as 12 °.
6. a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output as claimed in claim 2, feature
Be, the first total reflective mirror (1) described in the intracavitary and folding coaxially be sequentially placed between hysteroscope (5) electro-optic Q-switched crystal (2),
The wave plates of λ/4 (3) and Brewster polariscope (4)；The Brewster polariscope (4) is placed with optical axis at 56.3 ° of angles, is used for
Generate line polarisation.
7. a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output as described in claim 1, feature
It is, is folded described in the intracavitary and be coaxially sequentially placed acousto-optic Q-switch (6), LD targets between hysteroscope (5) and outgoing mirror (12)
Strip array (7), quartz polarization circulator (8) and Nd:YAG crystal bars (9)；The Nd:YAG crystal bars (9) are arranged in the LD
The intermediate position of target bar array (7), the Nd:Quartz polarization circulator (8) vertical connection of YAG crystal bars (9) and 90 ° of rotations,
The frequency-doubling crystal (11) is individually placed between outgoing mirror (12) and the second total reflective mirror (10).
8. a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output as claimed in claim 7, feature
It is, two LD target bars arrays (7) are pumping source, corresponding Nd:YAG crystal bars (9) use two-rod series connection, and in two sticks
90 ° of rotating quartz polarization rotators (8) are inserted into centre.
9. a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output as described in claim 1, feature
It is, first total reflective mirror (1) and the second total reflective mirror (10) are concave mirror, and the folding hysteroscope (5) and outgoing mirror (12) are
Plane mirror.
10. a kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output as claimed in claim 2, special
Sign is that first total reflective mirror (1), the second total reflective mirror (10) and folding hysteroscope (5) are coated with 1064nm high-reflecting films；The output
Mirror (12) inner surface plates 1064nm high-reflecting films, 532nm spectro-films, and 532nm anti-reflection films are plated in outer surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820486608.3U CN207705565U (en) | 2018-04-08 | 2018-04-08 | A kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output |
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| CN201820486608.3U CN207705565U (en) | 2018-04-08 | 2018-04-08 | A kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108346971A (en) * | 2018-04-08 | 2018-07-31 | 北京华宇德信光电技术有限公司 | A kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108346971A (en) * | 2018-04-08 | 2018-07-31 | 北京华宇德信光电技术有限公司 | A kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output |
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