CN107579410A - A kind of laser Automatic adjustment method - Google Patents
A kind of laser Automatic adjustment method Download PDFInfo
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- CN107579410A CN107579410A CN201710968377.XA CN201710968377A CN107579410A CN 107579410 A CN107579410 A CN 107579410A CN 201710968377 A CN201710968377 A CN 201710968377A CN 107579410 A CN107579410 A CN 107579410A
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Abstract
A kind of laser Automatic adjustment method of the present invention, it is related to a kind of method of computer control laser output wavelength, including：The pumping laser for launching pump laser (1) is incident to input mirror (3) after coupled system (2), reenter and be incident upon nonlinear crystal (4), speculum I (6) is incident to from the concussion light of nonlinear crystal (4) outgoing, the concussion light reflected through speculum I (6) is incident to speculum II (7), the concussion light reflected through speculum II (7) is incident to outgoing mirror (8), and the concussion light reflected through outgoing mirror (8) is incident to input mirror (3) and continues to vibrate in annular resonance intracavitary；Nonlinear crystal (4) is arranged at three-dimensional adjustment platform (5), by the three-dimensional state of three-dimensional adjustment platform (5) described in computer (10) adjust automatically, until detector (9) detects laser signal；The signal detected is input to the computer (10) by the detector (9) in real time, the computer (10) is according to the signal, laser model is preset with reference to the computer (10) to be adjusted, until obtaining anticipated output laser.
Description
Technical field
The present invention relates to a kind of laser Automatic adjustment method, more particularly to a kind of computer controls four mirror ring resonators to swash
Light Automatic adjustment method.
Background technology
The middle infrared band laser of 2 microns wavelength by gas molecules sorb and suspension scattering influenceed it is small, to mist,
Flue dust etc. has stronger penetration power, and decay in an atmosphere is weaker, therefore leads in spectral measurement, remote sensing, environmental protection and light
Letter field has very high application value.It is to utilize optical parameter to obtain mid-infrared laser and export the most frequently used, maximally effective means
Oscillator (OPO) enters under line frequency to 2.3 mu m waveband lasers to be changed.In order to reduce the starting of oscillation threshold value of optical parametric oscillator, lead to
More complicated cavity resonator structure is often used, and in order to obtain preferable laser output, it is necessary to spend very big energy progress humorous
The chamber that shakes is built, adjusted.
Existing optical resonator includes Z-type chamber, annular chamber etc., and these cavity structures are complicated, to optical path adjusting technology
It is required that it is higher, therefore, stable optics output is obtained, will become relatively difficult, scientific research personnel of the present invention is in long-term R ＆ D
Central, original and different develops brand-new regulation technology, to solve the problems, such as existing optical technology.
The content of the invention
The invention aims to solve the technical problem of the current complicated more difficult regulation of optical resonator light path, and propose
A kind of computer controls four mirror ring resonator laser Automatic adjustment methods.
Specifically, the present invention relates to a kind of computer to control four mirror ring resonator laser Automatic adjustment methods, including such as
Lower step：
The pumping laser for launching pump laser 1 extremely inputs mirror 3 after coupled system 2 with 45 degree of incident angles,
The pumping laser passed through through inputting mirror 3 is incident to nonlinear crystal 4, and the pumping laser is converted to concussion by nonlinear crystal 4
Light, it is transmitted to outside ring resonator from the pumping laser that nonlinear crystal 4 transmits through speculum I, is emitted from nonlinear crystal 4
Concussion light with 45 degree of incident angles to speculum I, the concussion light reflected through speculum I is with 45 degree incident angles to reflection
Mirror II, the concussion light reflected through speculum II with 45 degree incident angles to outgoing mirror 8, the concussion light through the reflection of outgoing mirror 8 with
45 degree of incident angles to input mirror 3 and continue to vibrate in annular resonance intracavitary；
Nonlinear crystal 4 is arranged at three-dimensional adjustment platform 5, passes through three-dimensional adjustment platform 5 described in the adjust automatically of computer 10
Three-dimensional state, until detector 9 detects laser signal；
The signal detected is input to the computer 10 by the detector 9 in real time, and the computer 10 is according to described
Signal, preset laser model with reference to the computer 10 and be adjusted, until obtaining anticipated output laser.
Further, the three-dimensional adjustment platform 5 can carry out front, rear, left and right, bows and face upward the regulation of six directions.
It is further, described that " signal detected is input to the computer 10, the meter by the detector 9 in real time
Calculation machine 10 is preset laser model with reference to the computer 10 and is adjusted, until obtaining anticipated output laser according to the signal "
Including：The optical signal detected is changed into after analog signal by the detector 9 is input to the computer 10, the meter in real time
Calculation machine 10 is drawn up out laser model according to the analog signal, and compared with the 10 default laser model of computer,
And according to comparative result adjust automatically three-dimensional adjustment platform 5 state, until the output light performance with it is described default
Laser model matches.
Further, the default laser model comprises at least one of following parameter：The wavelength for exporting laser is 2.3 μm
Wave band, peak power are more than 150KW, pulsewidth 1-2nm.
Further, the plane of described input mirror 3 towards coupled system 2 is coated with 2.3 μm of high transmittance films, the input mirror 3
Another side be coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film；Described speculum I towards the plane on the inside of ring resonator
It is coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film, the another side of the speculum I plates 2.3 μm of high transmittance films；Described speculum II
Towards the plane on the inside of ring resonator be coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film, the another side of the speculum II
Plate 2.3 μm of high transmittance films；Described outgoing mirror 8 is coated with mid-infrared light semi-transparent semi-reflecting film, institute towards the plane on the inside of ring resonator
The another side for stating outgoing mirror 8 is coated with mid-infrared light high transmittance film；Described nonlinear crystal 4 uses MgGeP2 crystal；Described
Two light pass surfaces of MgGeP2 crystal plate 2 μm of anti-reflection and mid-infrared light anti-reflection films；The cutting angle of described MgGeP2 crystal is 65
Degree；Described MgGeP2 crystal uses the first type-Ⅱphase matching mode.
Moreover, it relates to a kind of computer controls four mirror ring resonator laser Automatic adjustment methods, including it is as follows
Step：
The pumping laser for launching pump laser 1 extremely inputs mirror 3 after coupled system 2 with 45 degree of incident angles,
The pumping laser passed through through inputting mirror 3 is incident to nonlinear crystal 4, and the pumping laser is converted to concussion by nonlinear crystal 4
Light, it is transmitted to outside ring resonator from the pumping laser that nonlinear crystal 4 transmits through speculum I, is emitted from nonlinear crystal 4
Concussion light with 45 degree of incident angles to speculum I, the concussion light reflected through speculum I is with 45 degree incident angles to reflection
Mirror II, the concussion light reflected through speculum II with 45 degree incident angles to outgoing mirror 8, the concussion light through the reflection of outgoing mirror 8 with
45 degree of incident angles to input mirror 3 and continue to vibrate in annular resonance intracavitary；
Nonlinear crystal 4, speculum I 6, speculum II 7 and outgoing mirror 8 are arranged at three-dimensional adjustment platform 5, pass through calculating
The three-dimensional state of three-dimensional adjustment platform 5 described in the adjust automatically of machine 10, until detector 9 detects laser signal；
The signal detected is input to the computer 10 by the detector 9 in real time, and the computer 10 is according to described
Signal, preset laser model with reference to the computer 10 and be adjusted, until obtaining anticipated output laser.
Further, the three-dimensional adjustment platform 5 can carry out front, rear, left and right, bows and face upward the regulation of six directions.
It is further, described that " signal detected is input to the computer 10, the meter by the detector 9 in real time
Calculation machine 10 is preset laser model with reference to the computer 10 and is adjusted, until obtaining anticipated output laser according to the signal "
Including：The optical signal detected is changed into after analog signal by the detector 9 is input to the computer 10, the meter in real time
Calculation machine 10 is drawn up out laser model according to the analog signal, and compared with the 10 default laser model of computer,
And according to comparative result adjust automatically three-dimensional adjustment platform 5 state, until the output light performance with it is described default
Laser model matches.
Further, the default laser model comprises at least one of following parameter：The wavelength for exporting laser is 2.3 μm
Wave band, peak power are more than 150KW, pulsewidth 1-2nm.
Further, the plane of described input mirror 3 towards coupled system 2 is coated with 2.3 μm of high transmittance films, the input mirror 3
Another side be coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film；Described speculum I towards the plane on the inside of ring resonator
It is coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film, the another side of the speculum I plates 2.3 μm of high transmittance films；Described speculum II
Towards the plane on the inside of ring resonator be coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film, the another side of the speculum II
Plate 2.3 μm of high transmittance films；Described outgoing mirror 8 is coated with mid-infrared light semi-transparent semi-reflecting film, institute towards the plane on the inside of ring resonator
The another side for stating outgoing mirror 8 is coated with mid-infrared light high transmittance film；Described nonlinear crystal 4 uses MgGeP2 crystal；Described
Two light pass surfaces of MgGeP2 crystal plate 2 μm of anti-reflection and mid-infrared light anti-reflection films；The cutting angle of described MgGeP2 crystal is 65
Degree；Described MgGeP2 crystal uses the first type-Ⅱphase matching mode.
Beneficial effects of the present invention：Optical path adjusting method proposed by the present invention based on four mirror ring resonators, passes through meter
Calculation machine automatically controls the regulation that three-dimensional adjustment platform carries out six direction so that the laser can automatically complete optics tune
It is whole, solve the light modulation difficulty of four mirror ring resonators of complexity, both saved regulation technology, bring preferably regulation knot again
Fruit so that originally uninteresting optical path adjusting technology, be adjusted with reference to computer, realize the perfection of artificial intelligence and optical path adjusting
With reference to scientific research personnel only needs model setting perfection, and completing accurately optics with reference to automatic control technology can exports.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is the principle schematic diagram that the computer of the embodiment of the present invention 1 controls laser adjustment light path.
Fig. 2 is the principle schematic diagram that the computer of the embodiment of the present invention 2 controls laser adjustment light path.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, the present invention is made below in conjunction with accompanying drawing into
One step it is described in detail, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
【Embodiment 1】
As shown in figure 1, the present invention relates to a kind of computer to control four mirror ring resonator laser Automatic adjustment methods, including
Following steps：
The pumping laser for launching pump laser 1 extremely inputs mirror 3 after coupled system 2 with 45 degree of incident angles,
The pumping laser passed through through inputting mirror 3 is incident to nonlinear crystal 4, and the pumping laser is converted to concussion by nonlinear crystal 4
Light, it is transmitted to outside ring resonator from the pumping laser that nonlinear crystal 4 transmits through speculum I, is emitted from nonlinear crystal 4
Concussion light with 45 degree of incident angles to speculum I, the concussion light reflected through speculum I is with 45 degree incident angles to reflection
Mirror II, the concussion light reflected through speculum II with 45 degree incident angles to outgoing mirror 8, the concussion light through the reflection of outgoing mirror 8 with
45 degree of incident angles to input mirror 3 and continue to vibrate in annular resonance intracavitary；
Wherein, the plane of described input mirror 3 towards coupled system 2 is coated with 2.3 μm of high transmittance films, described to input the another of mirror 3
Simultaneously be coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film；Described speculum I is coated with towards the plane on the inside of ring resonator
2.3 μm of height are thoroughly and mid-infrared light high-reflecting film, the another side of the speculum I plate 2.3 μm of high transmittance films；The court of described speculum II
2.3 μm of height are coated with to the plane on the inside of ring resonator thoroughly and mid-infrared light high-reflecting film, the another side of the speculum II plate 2.3
μm high transmittance film；Described outgoing mirror 8 is coated with mid-infrared light semi-transparent semi-reflecting film, the output towards the plane on the inside of ring resonator
The another side of mirror 8 is coated with mid-infrared light high transmittance film；Described nonlinear crystal 4 uses MgGeP2 crystal；Described MgGeP2 is brilliant
Two light pass surfaces of body plate 2 μm of anti-reflection and mid-infrared light anti-reflection films；The cutting angle of described MgGeP2 crystal is 65 degree；Described
MgGeP2 crystal uses the first type-Ⅱphase matching mode.
Nonlinear crystal 4 is arranged at three-dimensional adjustment platform 5, passes through three-dimensional adjustment platform 5 described in the adjust automatically of computer 10
Three-dimensional state, until detector 9 detects laser signal；
The signal detected is input to the computer 10 by the detector 9 in real time, and the computer 10 is according to described
Signal, preset laser model with reference to the computer 10 and be adjusted, until obtaining anticipated output laser.
Specifically, the optical signal detected is changed into after analog signal by the detector 9 is input to the calculating in real time
Machine 10, the computer 10 are drawn up out laser model according to the analog signal, and with the 10 default mode of laser of computer
Type is compared, and implements amendment contrast defect, the state of three-dimensional adjustment platform 5 according to comparative result adjust automatically, until
A certain state disclosure satisfy that Model Matching pair substantially, then carry out second-order correction parameter, until the output light performance with it is described
Default laser model matches.Compared to the method for traditional regulation hysteroscope, the present embodiment is directly adopted and computerizedd control down
The mode for automatically adjusting crystal, there is simple in construction, the characteristics of light extraction efficiency is high.The present embodiment only needs to use when initial
Reference light fixes hysteroscope position, then by computer automatic control system, with reference to default simulation model, adjust automatically
6 dimensions of the crystal, you can the efficient output for obtaining laser.The computer model needs to be joined according to cavity effects
The parameters such as number, including chamber length, concave surface curvature radius, lumen type, pumping wavelength, output wavelength, crystal type, section, are used
MATLAB etc. works out simulation program, and is realized using the simulation program and relatively controlled automatically.
The three-dimensional adjustment platform 5 can carry out front, rear, left and right, bow and face upward the regulation of six directions.
The default laser model comprises at least one of following parameter：The wavelength for exporting laser is 2.3 mu m wavebands, peak value
Power is more than 150KW, pulsewidth 1-2nm.
Beneficial effects of the present invention：In view of this complicated resonator of four mirror ring resonators, because eyeglass is more, light modulation
Difficult technical problem, the optical path adjusting method proposed by the present invention based on four mirror ring resonators, changes traditional regulation
The adjusting method of outgoing mirror, but adjustment center of gravity is put on crystal, and carried out by the three-dimensional adjustment platform of computer controlled automatic
The regulation of six direction so that the laser can automatically complete pH effect, both saved regulation technology, brought again
Preferably regulation result so that originally uninteresting optical path adjusting technology, be adjusted with reference to computer, realize artificial intelligence and light
The perfect adaptation of road regulation, scientific research personnel only need model setting perfection, are completed with reference to automatic control technology can accurate
Optics output.
【Embodiment 2】
As shown in Fig. 2 the present invention relates to a kind of computer to control four mirror ring resonator laser Automatic adjustment methods, including
Following steps：
The pumping laser for launching pump laser 1 extremely inputs mirror 3 after coupled system 2 with 45 degree of incident angles,
The pumping laser passed through through inputting mirror 3 is incident to nonlinear crystal 4, and the pumping laser is converted to concussion by nonlinear crystal 4
Light, it is transmitted to outside ring resonator from the pumping laser that nonlinear crystal 4 transmits through speculum I, is emitted from nonlinear crystal 4
Concussion light with 45 degree of incident angles to speculum I, the concussion light reflected through speculum I is with 45 degree incident angles to reflection
Mirror II, the concussion light reflected through speculum II with 45 degree incident angles to outgoing mirror 8, the concussion light through the reflection of outgoing mirror 8 with
45 degree of incident angles to input mirror 3 and continue to vibrate in annular resonance intracavitary；
Wherein, the plane of described input mirror 3 towards coupled system 2 is coated with 2.3 μm of high transmittance films, described to input the another of mirror 3
Simultaneously be coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film；Described speculum I is coated with towards the plane on the inside of ring resonator
2.3 μm of height are thoroughly and mid-infrared light high-reflecting film, the another side of the speculum I plate 2.3 μm of high transmittance films；The court of described speculum II
2.3 μm of height are coated with to the plane on the inside of ring resonator thoroughly and mid-infrared light high-reflecting film, the another side of the speculum II plate 2.3
μm high transmittance film；Described outgoing mirror 8 is coated with mid-infrared light semi-transparent semi-reflecting film, the output towards the plane on the inside of ring resonator
The another side of mirror 8 is coated with mid-infrared light high transmittance film；Described nonlinear crystal 4 uses MgGeP2 crystal；Described MgGeP2 is brilliant
Two light pass surfaces of body plate 2 μm of anti-reflection and mid-infrared light anti-reflection films；The cutting angle of described MgGeP2 crystal is 65 degree；Described
MgGeP2 crystal uses the first type-Ⅱphase matching mode.
Nonlinear crystal 4, input mirror 3, speculum I 6, speculum II 7, outgoing mirror 8 are arranged at three-dimensional adjustment platform 5, led to
The three-dimensional state of three-dimensional adjustment platform 5 described in the adjust automatically of computer 10 is crossed, until detector 9 detects laser signal；
The signal detected is input to the computer 10 by the detector 9 in real time, and the computer 10 is according to described
Signal, preset laser model with reference to the computer 10 and be adjusted, until obtaining anticipated output laser.
Specifically, the optical signal detected is changed into after analog signal by the detector 9 is input to the calculating in real time
Machine 10, the computer 10 are drawn up out laser model according to the analog signal, and with the 10 default mode of laser of computer
Type is compared, and implements amendment contrast defect, the state of three-dimensional adjustment platform 5 according to comparative result adjust automatically, until
A certain state disclosure satisfy that Model Matching pair substantially, then carry out second-order correction parameter, until the output light performance with it is described
Default laser model matches.
The three-dimensional adjustment platform 5 can carry out front, rear, left and right, bow and face upward the regulation of six directions.
The default laser model comprises at least one of following parameter：The wavelength for exporting laser is 2.3 mu m wavebands, peak value
Power is more than 150KW, pulsewidth 1-2nm.
Wherein, computer program design follows following set-up procedure：
Reference light source is checked by detector 9, with an easy height check feux rouges whether with optical bench guide rail top surface
It is parallel, and on the center line between two guide rails of optical bench, such as there is deviation, it can be adjusted by three-dimensional adjustment platform 5.
The position of outgoing mirror is adjusted, before adjusting outgoing mirror, laser crystal is in pellucidity.The accurate location of outgoing mirror
Should make light path position at its center and otherwise the perforation hole of the fully reflective light echo of light should can be controlled three by computer
Dimension adjustment platform 5 is carefully adjusted.
By whether detecting the installation site detection light hot spot of optical test laser crystal in the middle position of laser crystal,
If any deviation, should be corrected by three-dimensional adjustment platform 5.Then the reflection optical position of laser crystal is observed, should be gone out with feux rouges
Perforation overlaps, and otherwise adjusts its angle position on the premise of taking into account light and being maintained at germ nucleus position as far as possible, makes reflected light
Drawn close as far as possible with perforation hole, at least should ensure that and be adjusted to and the deviation of perforation hole is less than 1mm.
Total reflective mirror (all-dielectric film piece) position is adjusted, whether first checks for feux rouges in the centre position of total reflective mirror, otherwise
The installation site of total reflective mirror mirror holder, which should be adjusted, makes light at the center of total reflective mirror.Secondly coarse adjustment total reflective mirror adjustment platform, makes reflection to red light
Return back out perforation.980nm laser is then turned on, before being now placed on outgoing mirror with the completely black sensitive paper exposed completely, it is observed that having
Laser exports, and adjusts the three-dimensional adjustment platform 5 of total reflective mirror repeatedly, the hot spot for making to get on sensitive paper as far as possible is most round and most partly concentrates on by force
Spot center.Then check whether laser overlaps with detection light, if preferably overlapping, laser has been adjusted to optimal shape
State.
Pump laser 1 sends the pumping laser that wavelength is 2.3 mu m wavebands, and the pumping laser is after coupled system 2
Into ring resonator, the pumping laser transmits after nonlinear crystal 4 and speculum I 6 successively in annular resonance intracavitary
To outside ring resonator, nonlinear crystal 4 produces mid-infrared laser in the presence of pumping laser, and the mid-infrared laser is successively
Reflect, vibrated in annular resonance intracavitary, mid-infrared laser arrives every time through speculum I 6, speculum II 7, outgoing mirror 8 and input mirror 3
During up to outgoing mirror 8,50% mid-infrared laser is reflected through outgoing mirror 8, and the mid-infrared laser of residue 50% is transmitted to through outgoing mirror 8
Outside ring resonator.
With Ho:Illustrate the mid-infrared light parameter of the present invention based on four mirror ring resonators exemplified by YAG laser
Oscillator, pump laser 1 use output wavelength as 2.1 μm of Ho:YAG laser, when pump laser power is 26W, ring
The mid-infrared laser power of shape resonator output is 10.6W, and infrared sharp beam quality factor M2 values are less than 2 in described.
Beneficial effects of the present invention：In view of this complicated resonator of four mirror ring resonators, because eyeglass is more, light modulation
Difficult technical problem, the optical path adjusting method proposed by the present invention based on four mirror ring resonators, while adjust laser crystal,
Each speculum, outgoing mirror, six sides are carried out by the multiple control of computer, and by the three-dimensional adjustment platform of computer controlled automatic
To regulation so that the laser can automatically complete pH effect, both save regulation technology, bring again preferably
Adjust result so that originally uninteresting optical path adjusting technology, be adjusted with reference to computer, realize artificial intelligence and optical path adjusting
Perfect adaptation, scientific research personnel only needs to set on model perfect, and accurately optics is completed with reference to automatic control technology can
Output.
Device embodiment described above is only schematical, wherein the unit illustrated as separating component can
To be or may not be physically separate, it can be as the part that unit is shown or may not be physics list
Member, you can with positioned at a place, or can also be distributed on multiple NEs.It can be selected according to the actual needs
In some or all of module realize the purpose of this embodiment scheme.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on such understanding, on
The part that technical scheme substantially in other words contributes to prior art is stated to embody in the form of software product, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers
Make to cause a computer equipment (can be personal computer, server, or network equipment etc.) to perform each implementation
Method described in some parts of example or embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of computer controls four mirror ring resonator laser Automatic adjustment methods, it is characterised in that comprises the following steps：
Make pumping laser that pump laser (1) launches after coupled system (2) with 45 degree of incident angles to inputting mirror
(3) pumping laser, passed through through inputting mirror (3) is incident to nonlinear crystal (4), and nonlinear crystal (4) is by the pumping laser
Concussion light is converted to, the pumping laser transmitted from nonlinear crystal (4) is transmitted to outside ring resonator through speculum I (6), from
The concussion light of nonlinear crystal (4) outgoing is with 45 degree of incident angles to speculum I (6), the concussion reflected through speculum I (6)
Light is with 45 degree of incident angles to speculum II (7), and the concussion light through speculum II (7) reflection is with 45 degree of incident angles to defeated
Appearance (8), through outgoing mirror (8) reflection concussion light with 45 degree of incident angles to input mirror (3) and annular resonance intracavitary after
Persistent oscillation；
Nonlinear crystal (4) is arranged at three-dimensional adjustment platform (5), passes through three-dimensional adjustment platform described in computer (10) adjust automatically
(5) three-dimensional state, until detector (9) detects laser signal；
The signal detected is input to the computer (10) by the detector (9) in real time, and the computer (10) is according to institute
Signal is stated, presetting laser model with reference to the computer (10) is adjusted, until obtaining anticipated output laser.
2. according to the method for claim 1, it is characterised in that the three-dimensional adjustment platform (5) can carry out it is forward and backward, left,
The right side, bowing and facing upward six directions is adjusted.
3. according to the method for claim 2, it is characterised in that described " detector (9) is real-time by the signal detected
The computer (10) is input to, the computer (10) presets mode of laser according to the signal with reference to the computer (10)
Type is adjusted, until obtaining anticipated output laser " include：The optical signal detected is changed into simulation by the detector (9)
It is input to the computer (10) after signal in real time, the computer (10) is drawn up out laser model according to the analog signal,
And compared with the computer (10) default laser model, and the three-dimensional adjustment platform according to comparative result adjust automatically
(5) state, until the performance of the output light matches with the default laser model.
4. according to the method for claim 3, it is characterised in that the default laser model comprise at least following parameter it
One：The wavelength of output laser is that 2.3 mu m wavebands, peak power are more than 150KW, pulsewidth 1-2nm.
5. according to the method for claim 1, it is characterised in that plane of the described input mirror (3) towards coupled system (2)
2.3 μm of high transmittance films are coated with, the another side of the input mirror (3) is coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film；Described reflection
Mirror I (6) towards the plane on the inside of ring resonator be coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film, the speculum I (6)
Another side plate 2.3 μm of high transmittance films；Described speculum II (7) is coated with 2.3 μm of height towards the plane on the inside of ring resonator
Thoroughly and mid-infrared light high-reflecting film, the another side of the speculum II (7) plate 2.3 μm of high transmittance films；Described outgoing mirror (8) is towards ring
Plane on the inside of shape resonator is coated with mid-infrared light semi-transparent semi-reflecting film, and the another side of the outgoing mirror (8) is coated with mid-infrared light height
Permeable membrane；Described nonlinear crystal (4) uses MgGeP2 crystal；2 μm of two light pass surfaces plating of described MgGeP2 crystal is anti-reflection
And mid-infrared light anti-reflection film；The cutting angle of described MgGeP2 crystal is 65 degree；Described MgGeP2 crystal uses first kind phase
Position matching way.
6. a kind of computer controls four mirror ring resonator laser Automatic adjustment methods, it is characterised in that comprises the following steps：
Make pumping laser that pump laser (1) launches after coupled system (2) with 45 degree of incident angles to inputting mirror
(3) pumping laser, passed through through inputting mirror (3) is incident to nonlinear crystal (4), and nonlinear crystal (4) is by the pumping laser
Concussion light is converted to, the pumping laser transmitted from nonlinear crystal (4) is transmitted to outside ring resonator through speculum I (6), from
The concussion light of nonlinear crystal (4) outgoing is with 45 degree of incident angles to speculum I (6), the concussion reflected through speculum I (6)
Light is with 45 degree of incident angles to speculum II (7), and the concussion light through speculum II (7) reflection is with 45 degree of incident angles to defeated
Appearance (8), through outgoing mirror (8) reflection concussion light with 45 degree of incident angles to input mirror (3) and annular resonance intracavitary after
Persistent oscillation；
Nonlinear crystal (4), speculum I (6), speculum II (7) and outgoing mirror (8) are arranged at three-dimensional adjustment platform (5), led to
The three-dimensional state of three-dimensional adjustment platform (5) described in computer (10) adjust automatically is crossed, until detector (9) detects laser signal；
The signal detected is input to the computer (10) by the detector (9) in real time, and the computer (10) is according to institute
Signal is stated, presetting laser model with reference to the computer (10) is adjusted, until obtaining anticipated output laser.
7. according to the method for claim 6, it is characterised in that the three-dimensional adjustment platform (5) can carry out it is forward and backward, left,
The right side, bowing and facing upward six directions is adjusted.
8. according to the method for claim 7, it is characterised in that described " detector (9) is real-time by the signal detected
The computer (10) is input to, the computer (10) presets mode of laser according to the signal with reference to the computer (10)
Type is adjusted, until obtaining anticipated output laser " include：The optical signal detected is changed into simulation by the detector (9)
It is input to the computer (10) after signal in real time, the computer (10) is drawn up out laser model according to the analog signal,
And compared with the computer (10) default laser model, and the three-dimensional adjustment platform according to comparative result adjust automatically
(5) state, until the performance of the output light matches with the default laser model.
9. according to the method for claim 8, it is characterised in that the default laser model comprise at least following parameter it
One：The wavelength of output laser is that 2.3 mu m wavebands, peak power are more than 150KW, pulsewidth 1-2nm.
10. according to the method for claim 6, it is characterised in that described input mirror (3) is put down towards coupled system (2)
Face is coated with 2.3 μm of high transmittance films, and the another side of the input mirror (3) is coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film；Described is anti-
Penetrate mirror I (6) towards the plane on the inside of ring resonator be coated with 2.3 μm of height thoroughly and mid-infrared light high-reflecting film, the speculum I
(6) another side plates 2.3 μm of high transmittance films；Described speculum II (7) is coated with 2.3 μm towards the plane on the inside of ring resonator
High saturating and mid-infrared light high-reflecting film, the another side of the speculum II (7) plate 2.3 μm of high transmittance films；Described outgoing mirror (8) direction
Plane on the inside of ring resonator is coated with mid-infrared light semi-transparent semi-reflecting film, and the another side of the outgoing mirror (8) is coated with mid-infrared light
High transmittance film；Described nonlinear crystal (4) uses MgGeP2 crystal；Two light pass surfaces of described MgGeP2 crystal plate 2 μm of increasings
Saturating and mid-infrared light anti-reflection film；The cutting angle of described MgGeP2 crystal is 65 degree；Described MgGeP2 crystal uses the first kind
Phase matched mode.
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