CN114465077A - Nonlinear crystal clamping device and installation method thereof - Google Patents
Nonlinear crystal clamping device and installation method thereof Download PDFInfo
- Publication number
- CN114465077A CN114465077A CN202210390169.7A CN202210390169A CN114465077A CN 114465077 A CN114465077 A CN 114465077A CN 202210390169 A CN202210390169 A CN 202210390169A CN 114465077 A CN114465077 A CN 114465077A
- Authority
- CN
- China
- Prior art keywords
- nonlinear crystal
- light
- clamping
- limiting plate
- clamping device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000013078 crystal Substances 0.000 title claims abstract description 180
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000009434 installation Methods 0.000 title abstract description 9
- 230000008859 change Effects 0.000 abstract description 7
- 230000008646 thermal stress Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/025—Constructional details of solid state lasers, e.g. housings or mountings
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention provides a nonlinear crystal clamping device and an installation method thereof. The fixing base of the clamping main body is matched with the upper cover assembly to form accommodating cavities with openings at the front end and the rear end of the clamping main body, the accommodating cavities are used for accommodating the nonlinear crystal, and the upper cover assembly is matched with the fixing base to realize elastic limit on the side face of the nonlinear crystal; preceding spacing subassembly and back limiting plate are last to be provided with respectively and to lead to the unthreaded hole before and after making laser pass through, and preceding spacing subassembly and back limiting plate cooperation are used for realizing spacing to the elasticity around the nonlinear crystal. Through carrying out elasticity spacing to the side of nonlinear crystal and around, adopt less power just can realize clamping device to the stable fixed of nonlinear crystal, and avoided leading to the damage that thermal stress is too big to make clamping device cause nonlinear crystal surface and inner structure because of the temperature change.
Description
Technical Field
The invention relates to the technical field of solid laser, in particular to a nonlinear crystal clamping device and an installation method thereof.
Background
The nonlinear crystal is mainly nonmetal brittle nonlinear crystal such as LBO, KTP, KDP, BBO, CLBO and the like, and the clamping and fixing devices for clamping and fixing the nonlinear crystal are metal with good heat conductivity such as copper or aluminum, and are rigidly connected with the nonlinear crystal in a screw locking mode. In the fixing mode of the nonlinear crystal of the existing solid laser, the nonlinear crystal is placed on a base, a pressing block is pressed on the nonlinear crystal, the joint of the pressing block and the base is fixed through a screw so as to clamp and fix the nonlinear crystal, and the nonlinear crystal is heated and controlled through a heating device attached to the base. The non-linear crystal of another kind of current solid laser's fixed mode is to place the non-linear crystal in taking the notched base, and the briquetting is pressed and is established on the non-linear crystal, is provided with threaded fixed briquetting on the briquetting, and then makes the briquetting compress tightly fixed non-linear crystal to the pressure size of briquetting through adjusting the jackscrew, and heating device wraps in the surface of base and fixed briquetting, realizes fixing and heating base and fixed briquetting.
According to the working mechanism of the nonlinear crystal, the clamping of the nonlinear crystal by the current clamping and fixing device has the following problems: in order to ensure that the position and the direction of the nonlinear crystal are not changed in the laser, a larger pressing force is generally adopted to fix the side surface of the nonlinear crystal, so that the nonlinear crystal and a clamping and fixing device have enough friction force, and the risk of internal damage of the nonlinear crystal is increased; when the nonlinear crystal is clamped and fixed, the clamping and fixing are realized by pressing through a jackscrew, so that the magnitude of the pressure applied to the nonlinear crystal cannot be confirmed; the nonlinear crystal needs to work at a specific high temperature, and the installation of the nonlinear crystal by an operator is carried out at normal temperature, due to different expansion coefficients, the clamping force between the clamping device and the nonlinear crystal can change along with the change of temperature, if the clamping pressure is too high after the temperature change, the surface or the internal structure of the nonlinear crystal can be damaged, so that the nonlinear crystal is damaged, or after the temperature change, the position of the nonlinear crystal can be changed due to insufficient clamping pressure, and the performance of fixing a laser can be reduced, or even the nonlinear crystal cannot work.
Disclosure of Invention
The invention aims to provide a nonlinear crystal clamping device and a fixed laser, and aims to solve the technical problem that the nonlinear crystal is easy to damage due to rigid limitation of the nonlinear crystal by the conventional fixed clamping device.
The application provides a nonlinear crystal clamping device for fixed nonlinear crystal includes: the clamping device comprises a clamping main body and a clamping cover assembly, wherein the clamping main body comprises a fixed base and an upper cover assembly, a square concave table is arranged in the fixed base, the upper cover assembly and the square concave table are matched to form accommodating cavities with openings at the front end and the rear end of the clamping main body, the accommodating cavities are used for accommodating nonlinear crystals, light through surfaces at the two ends of the nonlinear crystals are located at the openings of the accommodating cavities, and the upper cover assembly is used for being matched with the fixed base to realize elastic limit on the side surfaces of the nonlinear crystals; the rear limiting plate is arranged at the rear end of the clamping main body, and a rear light through hole for allowing laser to pass through is formed in the rear limiting plate; the front limiting assembly is arranged at the front end of the clamping main body, a front light through hole for allowing laser to pass through is formed in the front limiting assembly, and the front limiting assembly is matched with the rear limiting plate to realize elastic limiting of the front and the rear of the nonlinear crystal.
Optionally, the front limiting assembly includes a front limiting plate, a second spring and a slider, through holes for screws to pass through are formed in the slider and the front limiting plate, and the screws sequentially penetrate through the front limiting plate, the second spring and the slider to fix the front limiting assembly to the fixed base.
Optionally, the front light through hole and the rear light through hole are circular holes coaxially arranged.
Optionally, the front light-passing hole includes a first front light-passing hole opened in the front limiting plate and a second front light-passing hole opened in the slider, and a diameter of a radial cross section of the second front light-passing hole is smaller than a length of a diagonal line of the light-passing surface of the nonlinear crystal, so as to prevent the nonlinear crystal from passing through the second front light-passing hole.
Optionally, a radial cross-sectional diameter of the back light-passing hole is smaller than a length of a diagonal line of the light-passing surface of the nonlinear crystal, so as to prevent the nonlinear crystal from passing through the back light-passing hole.
Optionally, the upper cover assembly is connected with the fixed base by a fixed ring.
Optionally, a pair of grooves is annularly arranged at two ends of the outer surface of the clamping main body to accommodate the fixing rings.
Optionally, the upper cover assembly comprises a fixed upper cover, a first spring and a pressing plate, the first spring is arranged between the fixed upper cover and the pressing plate, and the pressing plate is used for pressing one side surface of the nonlinear crystal.
Optionally, the clamping body is a cylinder.
The application also provides a method for installing the nonlinear crystal clamping device, which is used for installing the nonlinear crystal clamping device and is characterized by comprising the following steps:
fixing the rear limiting plate at one end of the fixed base through a screw, and normally tightening the screw;
connecting the front limiting assembly to the other end, opposite to the rear limiting plate, of the fixed base through a screw, and loosening and screwing the screw;
placing the nonlinear crystal into the fixed base, and further screwing a screw into the front limiting component until the front limiting component is in contact with a light passing surface at one end of the nonlinear crystal to form pressure, wherein the light passing surface at the other end of the nonlinear crystal is abutted against the rear limiting plate;
fixing the upper cover assembly on the fixed base;
and screwing the front limiting assembly and the screw of the fixed base.
The invention provides a nonlinear crystal clamping device which comprises a clamping main body, and a front limiting component and a rear limiting plate which are respectively arranged at the front end and the rear end of the clamping main body. The clamping main body comprises a fixed base and an upper cover assembly, the upper cover assembly is matched with a square concave table in the fixed base to form accommodating cavities with openings at the front end and the rear end of the clamping main body, the accommodating cavities are used for accommodating nonlinear crystals, light-passing surfaces at the two ends of the nonlinear crystals are located at the openings of the accommodating cavities, and the upper cover assembly is matched with the fixed base to realize elastic limit on the side surfaces of the nonlinear crystals; preceding spacing subassembly and back limiting plate are last to be provided with respectively and to lead to the unthreaded hole and lead to the unthreaded hole after making laser pass through, and preceding spacing subassembly and back limiting plate cooperate in order to be used for realizing the elasticity spacing around the nonlinear crystal. Through carrying out elasticity spacing to the side of nonlinear crystal and around, adopt less power just can realize clamping device to the stable fixed of nonlinear crystal, and avoided leading to the problem that thermal stress is too big to make clamping device to the surface of nonlinear crystal and the inner structure cause because of the temperature change.
Drawings
FIG. 1 is a schematic diagram of laser light generated by exciting a nonlinear crystal.
FIG. 2 is a front view of a nonlinear crystal holder apparatus according to an embodiment of the present application.
FIG. 3 is a top cross-sectional view of a nonlinear crystal-holding apparatus in accordance with an embodiment of the present application.
FIG. 4 is a side cross-sectional view of a nonlinear crystal-holding apparatus in accordance with an embodiment of the present application.
Fig. 5 is an assembly structure diagram of the clamping main body, the front limiting assembly and the heating device according to an embodiment of the present disclosure.
The reference numerals are explained below:
100. a nonlinear crystal holding device; 10. a clamping body; 11. a fixed base; 12. an upper cover assembly; 121. pressing a plate; 122. a first chamber; 123. a first spring; 124. fixing the upper cover; 13. an accommodating cavity; 20. a front limit assembly; 21. a slider; 21a, a second front light through hole; 22. a second chamber; 23. a second spring; 24. a front limiting plate; 24a, a first front light through hole; 30. a rear limiting plate; 30a, a rear light through hole; 40. a fixing ring; 50. a groove; 51; a first groove; 52; a second groove; 201. a heating device; A. a nonlinear crystal; B. incident laser; C. laser light is emitted.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
For further explanation of the principles and construction of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, which are illustrated in the accompanying drawings.
Before describing the embodiments of the present application, a solid-state laser and a nonlinear crystal will be described. A solid-state laser is a laser that irradiates a crystal with excitation source light and generates laser light by exciting an excited substance doped in the crystal. Such crystals include laser crystals and nonlinear crystals, wherein the laser crystals are a process of irradiating the crystals with non-laser light as a pump source to generate laser light, the nonlinear crystals are a process of irradiating the nonlinear crystals a with laser light of a specific wavelength or laser light of a plurality of different wavelengths as incident laser light B, the population inversion of a gain medium is realized in the nonlinear crystal lattice, and then high-energy-level particles are transited to a low-energy level to generate outgoing laser light C of another wavelength, and fig. 1 is a schematic diagram of the laser light generated by the excited nonlinear crystals.
The nonlinear crystal generally needs to be at a specific temperature to realize nonlinear optical conversion, and in order to obtain stable and efficient nonlinear efficiency, the nonlinear crystal generally works in a specific high-temperature environment, so the nonlinear crystal is generally fixed on a pedestal with a heating and temperature control function to work. Because the angle between the fundamental frequency incident laser and the nonlinear crystal incident surface has high precision requirement, the output energy of the frequency doubling laser can be changed greatly when the incident angle of the fundamental frequency laser changes slightly, and the displacement of the beam waist position of the fundamental frequency light in the nonlinear crystal along the laser transmission direction can also cause great influence on the frequency doubling efficiency of the nonlinear crystal. Therefore, the nonlinear crystal clamper is particularly important for realizing stable clamping of the nonlinear crystal.
Referring to fig. 2 and 3, the present application provides a nonlinear crystal clamping apparatus 100 for stably clamping a nonlinear crystal a. The nonlinear crystal clamping device 100 includes a clamping body 10, and a front limiting component 20 and a rear limiting plate 30 disposed at the front and rear ends of the clamping body 10. The clamping main body 10 realizes elastic fixation of the side surface of the nonlinear crystal A, and the front limiting component 20 and the rear limiting plate 30 are matched to realize elastic fixation of the front and the rear of the nonlinear crystal A.
Referring to fig. 4, the clamping body 10 includes a fixed base 11 and a cover assembly 12. In the present embodiment, the holding body 10 is a cylinder. The fixed base 11 is provided with a square concave platform inside, and the upper cover assembly 12 and the square concave platform are matched to form an accommodating cavity 13 with openings at the front end and the rear end of the clamping main body 10. It is understood that the clamping body 10 may also be a rectangular parallelepiped or the like.
The fixed base 11 and the upper cover assembly 12 are connected by a fixed ring 40. Specifically, the fixing rings 40 are fitted over opposite ends of the outer peripheral surface of the clamping body 10, and the fixing base 11 and the upper cover assembly 12 are fastened by the fixing rings 40. Further, a pair of grooves 50 are annularly arranged at two ends of the outer peripheral surface of the clamping main body 10 to accommodate the fixing rings 40, the arrangement of the grooves 50 can avoid the displacement of the fixing rings 40, and the stability of the connection between the fixing base 11 and the upper cover assembly 12 through the fixing rings 40 is improved. It will be appreciated that the number of retaining rings 40 can be set as desired.
The upper cover assembly 12 includes a pressing plate 121, a fixed upper cover 124, and a first spring 123 connecting the pressing plate 121 and the fixed upper cover 124. Specifically, the fixed upper cover 124 is provided with a first cavity 122, one end of the first spring 123 is accommodated in the first cavity 122, the other end of the first spring 123 is connected to one surface of the pressing plate 121, and the other surface of the pressing plate 121 away from the first spring 123 limits the nonlinear crystal a by the pressure applied to the pressing plate 121 by the first spring 123. The outer surface of the fixing upper cover 124 is provided with a first groove 51 for accommodating the fixing ring 40, the outer surface of the fixing base 11 is provided with a second groove 52, and the first groove 51 and the second groove 52 enclose a groove 50 for clamping and fixing the fixing ring 40. It is understood that the first spring 123 may be a wave spring or a coil spring.
The square concave formed in the fixed base 11 forms three faces of the accommodating chamber 13, and forms four faces of the accommodating chamber 13 together with one face of the pressing plate 121 pressing the nonlinear crystal a, and the accommodating chamber 13 opens at the front and rear ends of the holding body 10. Four side surfaces, namely non-light-passing surfaces, of the nonlinear crystal A are fixed by four surfaces of the accommodating cavity 13, two ends, namely light-passing surfaces, of the nonlinear crystal A are located at two ends of the accommodating cavity 13, the incident laser B enters the light-passing surfaces at one end of the nonlinear crystal A through an opening at one end of the accommodating cavity 13, and the emergent laser C generated by exciting the nonlinear crystal A is emitted through an opening at the other end of the accommodating cavity 13.
In other embodiments, the clamping main body 10 includes a fixing base 11 and an upper cover cooperating with the fixing base 11 to form the accommodating cavity 13, the clamping main body 10 is a cylinder, two ends of an outer surface of the upper cover are oppositely provided with a pair of C-shaped grooves, the outer surface of the fixing base 11 is provided with two clamping grooves continuously connected with two ends of the C-shaped grooves, a depth of each clamping groove is slightly greater than a depth of each C-shaped groove, the upper cover is clamped with the base through a C-shaped clamping ring, and the C-shaped clamping ring is an elastic ring, so that the upper cover elastically limits the nonlinear crystal a.
The front end and the rear end of the clamping main body 10 are respectively provided with a front limiting component 20 and a rear limiting plate 30, and the front limiting component 20 and the rear limiting plate 30 are used for elastically limiting the front and the rear of the nonlinear crystal A together.
Referring to fig. 3, the front limiting member 20 includes a slider 21, a second spring 23, and a front limiting plate 24. Specifically, the sliding block 21 is provided with a second chamber 22 for accommodating a second spring 23, the bottom of the second chamber 22 and the front limiting plate 24 are provided with through holes for screws to pass through, and the screws sequentially penetrate through the front limiting plate 24, the second spring 23 and the sliding block 21 to fix the front limiting component 20 at one end of the fixed base 11. The second spring 23 and the slider 21 are located between the front limiting plate 24 and the fixed base 11, the elastic force applied by the second spring 23 to the slider 21 presses the light-emitting surface of the nonlinear crystal a, and the front limiting plate 24 limits the second spring 23 and the slider 21.
The side surface of the nonlinear crystal A, namely the non-light-passing surface, is limited by the fixed base 11 and the upper cover component 12, and the upper cover component 12 only plays a role in limiting; the light passing surface of the nonlinear crystal A is limited by the fixing base 11, the front limiting block assembly 20 and the rear limiting plate 30, the problem of sliding friction between the nonlinear crystal A and the front limiting block assembly 20 and the rear limiting plate 30 does not exist due to the axial fixing clamping force, and the problem of crystal heating conduction is not considered, so that the pressure directly applied to the light passing surface of the nonlinear crystal A is larger than the gravity of the nonlinear crystal A, namely the front limiting block assembly 20 and the rear limiting plate 30 are matched to limit the nonlinear crystal A by adopting smaller force.
In addition, the limit mode of the pressing plate 121 on the side face of the nonlinear crystal a and the limit mode of the first limit component on the light passing face of the nonlinear crystal a are both set to be flexible limit connected with the spring, so that the problem that when the temperature rises or falls, the force applied to the surface of the nonlinear crystal a is different in expansion coefficient due to the fact that the nonlinear crystal a is different in material and the fixing device, and accordingly the surface and the inner structure of the nonlinear crystal a are damaged due to severe increase of pressure, or the position of the nonlinear crystal a is moved due to the fact that the contact is not firm due to the fact that the surface of the nonlinear crystal a and the contact face of the fixing device are changed, and further performance of the fixed laser is reduced or even the fixed laser cannot work.
Further, the pressure applied to the surface of the nonlinear crystal a can be adjusted by adjusting the lengths, elastic coefficients, or compression amounts of the first spring 123 and the second spring 23. According to the formula of spring force F = kx, (k is the elastic coefficient of the substance, and x is the length of the spring deformation). Therefore, by pressing the surface of the nonlinear crystal a with the spring so that the pressure applied to the nonlinear crystal a can be determined by selecting springs of different elastic coefficients and controlling the compression amount of the springs, controllability of the pressing force applied to the nonlinear crystal a is achieved.
The front limiting plate 24 and the slider 21 are respectively provided with a first front light through hole 24a and a second front light through hole 21a for passing laser emitted by the light through surface of the nonlinear crystal A, and the first front light through hole 24a and the second front light through hole 21a are coaxial circular holes. It can be understood that the aperture shapes and the radial section diameters of the first front light passing hole 24a and the second front light passing hole 21a may be different as long as the front limiting plate 24 is used for limiting the slider 21 and ensuring the laser to pass through. Preferably, the radial cross-sectional diameters of the first front light passing hole 24a and the second front light passing hole 21a are the same, so that the contact area of the front limiting plate 24 to the slider 21 is large, the limitation of the slider 21 is more stable, and the laser is not blocked.
The rear limiting plate 30 is fixed on the fixing base 11 through screws, the rear limiting plate 30 is provided with a rear light through hole 30a, and the rear light through hole 30a is a circular hole coaxially arranged with the first front light through hole 24a and the second front light through hole 21 a.
The radial cross-sectional diameters of the second front light-passing hole 21a of the sliding block 21 and the rear light-passing hole 30a of the rear limiting plate 30 in the front limiting component 20 are both smaller than the diagonal line of the light-passing surface of the nonlinear crystal a, preferably, the radial cross-sectional diameters of the second front light-passing hole 21a and the rear light-passing hole 30a are both smaller than the diagonal line of the light-passing surface of the nonlinear crystal a and larger than the long edge of the light-passing surface of the nonlinear crystal a, so that the sliding block 21 and the rear limiting plate 30 only limit four corners of the light-passing surfaces at two ends of the nonlinear crystal a, and the limiting pressure on the nonlinear crystal a is smaller while the light-passing surfaces at the front end and the rear end of the nonlinear crystal a realize larger light-passing area.
The present application further provides a method for installing a nonlinear crystal holding apparatus 100, which is used for installing the nonlinear crystal holding apparatus 100, and comprises the following steps:
fixing the rear limiting plate 30 at one end of the fixed base 11 through a screw, and normally tightening the screw;
connecting the front limiting assembly 20 to the other end, opposite to the rear limiting plate 30, of the fixed base 11 through a screw, and loosening the screw; specifically, in the present embodiment, the slide block 21, the second spring 23 and the front limiting plate 24 in the front limiting assembly 20 are sequentially connected to the other end of the fixed base 11 by screws, and the screws are loosened;
placing the nonlinear crystal A into the fixed base 11, further screwing a screw into the front limiting component 20 until the front limiting component 20 is in contact with a light passing surface at one end of the nonlinear crystal A to form pressure, and enabling the light passing surface at the other end of the nonlinear crystal A to abut against the rear limiting plate 30; specifically, in the present embodiment, the screw is further screwed until the sliding block 21 of the front limiting component 20 contacts with the light-passing surface at one end of the nonlinear crystal a with pressure, and the light-passing surface at the other end of the nonlinear crystal a abuts against the rear limiting plate 30;
fixing the upper cover assembly 12 on the fixed base; specifically, the upper cover assembly 12 is fixed to the fixed base 11 by a fixing ring 40;
the screw of the front limit member 20 and the fixed base 11 is tightened.
Through the mode of spring flexible coupling, installer need only with nonlinear crystal clamping device 100 screw-up when the installation can, great reduction to installer experience's requirement, avoided the problem that the installation degree of difficulty is big and the unable direct check of installation effect because of nonlinear crystal A, also reduced simultaneously in the installation of nonlinear crystal A damage nonlinear crystal A or the problem that the power of exerting the power leads to nonlinear crystal A to shift inadequately.
Referring to fig. 5, the nonlinear crystal clamping device further includes a heating device 201 wound around the outer peripheral surface of the clamping body 10. Because the non-linear crystal clamping device 100 elastically limits the light-passing surfaces at the two ends of the non-linear crystal a, the non-linear crystal a can reach the specified position of the incident beam waist without adjusting the position of the non-linear crystal a back and forth, and the heating device 201 is wound on the outer surface of the clamping main body 10, so that the heating device 201 uniformly heats the four side surfaces of the non-linear crystal a at the same time.
The invention provides a nonlinear crystal clamping device 100, which comprises a clamping main body 10, and a front limiting component 20 and a rear limiting plate 30 which are respectively arranged at the front end and the rear end of the clamping main body 10. The clamping main body 10 comprises a fixed base 11 and an upper cover assembly 12, the upper cover assembly 12 is matched with a square concave table in the fixed base 11 to form an accommodating cavity 13 with openings at the front end and the rear end of the clamping main body 10, the accommodating cavity 13 is used for accommodating a nonlinear crystal A, light through surfaces at two ends of the nonlinear crystal A are located at the openings of the accommodating cavity 13, and the upper cover assembly 12 is matched with the fixed base 11 to realize elastic limit on the side surface of the nonlinear crystal A; the front limiting component 20 and the rear limiting plate 30 are respectively provided with a front light through hole and a rear light through hole 30a for laser to pass through, and the front limiting component 20 and the rear limiting plate 30 are matched for realizing elastic limiting of the front and the rear of the nonlinear crystal A. The side face and the front and the back of the nonlinear crystal A are limited, the clamping device can be stably fixed on the nonlinear crystal A by adopting small force, and an elastic limiting mode is adopted, so that when the temperature of the nonlinear crystal A and the clamping device is changed, the pressure of the nonlinear crystal A is basically unchanged, and the problems that the surface and the internal structure of the nonlinear crystal A are damaged by the clamping device with overlarge thermal stress due to the change of the temperature, or the nonlinear crystal A is separated from the clamping device are solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, but rather is intended to cover all equivalent structural changes made by the use of the specification and drawings.
Claims (10)
1. A nonlinear crystal clamping apparatus for holding a nonlinear crystal, comprising:
the clamping device comprises a clamping main body and a clamping cover assembly, wherein the clamping main body comprises a fixed base and an upper cover assembly, a square concave table is arranged in the fixed base, the upper cover assembly and the square concave table are matched to form accommodating cavities with openings at the front end and the rear end of the clamping main body, the accommodating cavities are used for accommodating nonlinear crystals, light through surfaces at the two ends of the nonlinear crystals are located at the openings of the accommodating cavities, and the upper cover assembly is used for being matched with the fixed base to realize elastic limit on the side surfaces of the nonlinear crystals;
the rear limiting plate is arranged at the rear end of the clamping main body, and a rear light through hole for allowing laser to pass through is formed in the rear limiting plate;
the front limiting assembly is arranged at the front end of the clamping main body, a front light through hole for allowing laser to pass through is formed in the front limiting assembly, and the front limiting assembly is matched with the rear limiting plate to realize elastic limiting of the front and the rear of the nonlinear crystal.
2. The nonlinear crystal clamping device in accordance with claim 1, wherein the front limiting assembly comprises a front limiting plate, a second spring and a sliding block, the sliding block and the front limiting plate are provided with through holes for screws to pass through, and the screws sequentially pass through the front limiting plate, the second spring and the sliding block to fix the front limiting assembly to the fixed base.
3. The nonlinear crystal clamping device in accordance with claim 2, wherein the front clear aperture and the back clear aperture are coaxially disposed circular apertures.
4. The nonlinear crystal clamping device in accordance with claim 3, wherein the front light-passing hole comprises a first front light-passing hole opened in the front limiting plate and a second front light-passing hole opened in the slider, and a radial cross-sectional diameter of the second front light-passing hole is smaller than a length of a diagonal line of the light-passing surface of the nonlinear crystal so as to prevent the nonlinear crystal from passing through the second front light-passing hole.
5. The nonlinear crystal clamping device in accordance with claim 4, wherein the diameter of the radial cross section of the back light aperture is smaller than the length of the diagonal of the light aperture of the nonlinear crystal to avoid the passage of the nonlinear crystal through the back light aperture.
6. The nonlinear crystal-clamping device in accordance with claim 1, wherein the lid assembly is connected to the fixed base by a fixed ring.
7. The nonlinear crystal clamping device in accordance with claim 6, wherein a pair of grooves are formed around both ends of the outer surface of the clamping body for receiving the fixing rings.
8. The nonlinear crystal clamping device of claim 7, wherein the upper cover assembly comprises a fixed upper cover, a first spring, and a pressure plate, the first spring being disposed between the fixed upper cover and the pressure plate, the pressure plate being configured to compress one side of the nonlinear crystal.
9. The nonlinear crystal clamping device in accordance with any one of claims 1 to 8, wherein the clamping body is a cylinder.
10. A method of mounting a nonlinear crystal holding apparatus for use in mounting a nonlinear crystal holding apparatus as recited in any of claims 1 to 9, comprising the steps of:
fixing the rear limiting plate at one end of the fixed base through a screw, and normally tightening the screw;
connecting the front limiting assembly to the other end, opposite to the rear limiting plate, of the fixed base through a screw, and loosening and screwing the screw;
placing the nonlinear crystal into the fixed base, and further screwing a screw into the front limiting component until the front limiting component is in contact with a light passing surface at one end of the nonlinear crystal to form pressure, wherein the light passing surface at the other end of the nonlinear crystal is abutted against the rear limiting plate;
fixing the upper cover assembly on the fixed base;
and screwing the front limiting assembly and the screw of the fixed base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210390169.7A CN114465077B (en) | 2022-04-14 | 2022-04-14 | Nonlinear crystal clamping device and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210390169.7A CN114465077B (en) | 2022-04-14 | 2022-04-14 | Nonlinear crystal clamping device and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114465077A true CN114465077A (en) | 2022-05-10 |
| CN114465077B CN114465077B (en) | 2022-08-19 |
Family
ID=81418512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210390169.7A Active CN114465077B (en) | 2022-04-14 | 2022-04-14 | Nonlinear crystal clamping device and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114465077B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07314428A (en) * | 1994-05-23 | 1995-12-05 | Komatsu Ltd | Fastening device for form |
| US5999343A (en) * | 1997-07-29 | 1999-12-07 | Gsanger Optoelektronik Gmbh | Housing for crystal accommodated in its interior with polished optical end faces |
| JP2001021790A (en) * | 1999-07-02 | 2001-01-26 | Ishikawajima Harima Heavy Ind Co Ltd | Device for adjusting optical element angle for optical instrument |
| JP2001059928A (en) * | 1999-08-23 | 2001-03-06 | Ishikawajima Harima Heavy Ind Co Ltd | Device for adjusting optical element angle of optical instrument |
| JP2004157286A (en) * | 2002-11-06 | 2004-06-03 | Fuji Photo Optical Co Ltd | Lens unit |
| JP2007171491A (en) * | 2005-12-21 | 2007-07-05 | Toshiba Corp | Optical crystal holding structure and wavelength converter |
| CN203180302U (en) * | 2013-03-21 | 2013-09-04 | 武汉凌云光电科技有限责任公司 | Flexible laser crystal fixing device |
| WO2018049694A1 (en) * | 2016-09-13 | 2018-03-22 | 江苏大学 | Cryogenic workbench, cryogenic laser peening experiment system and control method therefor |
-
2022
- 2022-04-14 CN CN202210390169.7A patent/CN114465077B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07314428A (en) * | 1994-05-23 | 1995-12-05 | Komatsu Ltd | Fastening device for form |
| US5999343A (en) * | 1997-07-29 | 1999-12-07 | Gsanger Optoelektronik Gmbh | Housing for crystal accommodated in its interior with polished optical end faces |
| JP2001021790A (en) * | 1999-07-02 | 2001-01-26 | Ishikawajima Harima Heavy Ind Co Ltd | Device for adjusting optical element angle for optical instrument |
| JP2001059928A (en) * | 1999-08-23 | 2001-03-06 | Ishikawajima Harima Heavy Ind Co Ltd | Device for adjusting optical element angle of optical instrument |
| JP2004157286A (en) * | 2002-11-06 | 2004-06-03 | Fuji Photo Optical Co Ltd | Lens unit |
| JP2007171491A (en) * | 2005-12-21 | 2007-07-05 | Toshiba Corp | Optical crystal holding structure and wavelength converter |
| CN203180302U (en) * | 2013-03-21 | 2013-09-04 | 武汉凌云光电科技有限责任公司 | Flexible laser crystal fixing device |
| WO2018049694A1 (en) * | 2016-09-13 | 2018-03-22 | 江苏大学 | Cryogenic workbench, cryogenic laser peening experiment system and control method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114465077B (en) | 2022-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6307871B1 (en) | Laser system using phase change material for thermal control | |
| KR100272193B1 (en) | Solid-state laser pumped with a semiconductor laser | |
| US6385220B1 (en) | Laser clamping assembly and method | |
| JP2009507383A (en) | Optical mount for laser rod | |
| CN114465077B (en) | Nonlinear crystal clamping device and installation method thereof | |
| US6532100B1 (en) | Extended lifetime frequency conversion crystals | |
| CN217213026U (en) | Testing device for semiconductor laser chip assembly | |
| JP2001524761A (en) | Cooling device for optical crystal or laser crystal, respectively | |
| WO2007149214A2 (en) | Vacuum cell for optical components | |
| CN212398643U (en) | Adjustable laser crystal clamp | |
| CN117146594A (en) | Multi-surface sintering clamp and method for semiconductor laser | |
| US9740081B1 (en) | Double lens device for tunable harmonic generation of laser beams in KBBF/RBBF crystals or other non-linear optic materials | |
| JP2000501521A (en) | Diode-pumped frequency-doubled solid-state laser. | |
| CN213278681U (en) | Clamping device, double-crystal clamping device and debugging system | |
| CN107699890B (en) | Coating machine fixture and coating machine | |
| DE60309801T2 (en) | Microlaser with frequency doubling in the resonator and adjustment by turning elements | |
| CN112271534A (en) | Clamping device, double-crystal clamping device and debugging system | |
| US6282227B1 (en) | Diode-pumped double frequency solid-state laser | |
| JP2014202902A (en) | Holder, laser oscillation device, and laser beam machine | |
| JPH0572577A (en) | Holder of nonlinear optical crystal | |
| US20030089861A1 (en) | Method and device for generating ultra-high pressure | |
| CN219861584U (en) | Clamp for coaxial powder feeding repairing device and coaxial powder feeding repairing device | |
| CN117577505A (en) | Micro focus excitation light source device for light and small TOF mass spectrometer | |
| CN113690721A (en) | Multi-dimensional adjustable solid laser gain medium cooling device | |
| JPH04330426A (en) | Light wavelength conversion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231107 Address after: 510000 Room 301, building B3, No. 11, Kaiyuan Avenue, Huangpu District, Guangzhou, Guangdong Patentee after: Guangdong Zhuojie Laser Technology Co.,Ltd. Address before: 510700 3rd floor, building B3, science and technology enterprise accelerator, Guangzhou Development Zone, Kaiyuan Avenue, Huangpu District, Guangzhou City, Guangdong Province Patentee before: Guangdong Guangdong Hong Kong Macao Dawan District hard science and Technology Innovation Research Institute |