154 results about "Light laser" patented technology

The invention discloses an automobile motor magnetic steel inserting machine based on visual recognition, and belongs to the field of automobile motor machining, the automobile motor magnetic steel inserting machine comprises a base, a display screen, a reflection component and a filter element assembly, a shell is arranged over the base, one side of the shell is connected with the display screen in a penetrating mode, one side of the base is provided with a feeding mechanism, and the other side of the base is provided with a magnetic steel inserting mechanism. The feeding mechanism adjusts and controls the displacement distance of a workpiece according to the machining requirement, and then magnetic insertion operation of automobile motors with different diameters is met. And a piezomagnetic mechanism is arranged in the shell, the piezomagnetic mechanism adjusts the pressing height according to the pressing requirement, so that the magnetic steel is tightly attached to the stator iron core, and the piezomagnetic mechanism ensures that the magnet has no displacement. The industrial camera and the blue light laser are inclined and adjusted through the arc-shaped rack and the gear, the arc-shaped rack adopts helical tooth design, precision gear transmission is combined, inclination angle adjusting precision is achieved, and the requirement of the blue light laser for projection angle deviation is met.

The invention discloses a square groove size measuring device and method based on linear structured light and arc-shaped reflector imaging, the device comprises a base, the base is provided with a bent metal plate base, the base is provided with an arc-shaped reflector mechanism and a rotating platform mechanism, the arc-shaped reflector mechanism comprises a partition plate, a linear laser generator, an arc-shaped reflector and a CMOS camera, the CMOS camera and the linear laser generator are arranged on the partition plate. By introducing an arc-shaped reflecting mirror mechanism and designing the curvature and the mounting angle of the arc-shaped reflecting mirror mechanism, a vertical groove wall in a line structured light laser shadow area is effectively reflected to a camera imaging visual field, so that the imaging range of the vertical groove wall is expanded, and the detectability of local shape change caused by surface micro roughness is enhanced; the technical problems that an effective reflection path is difficult to form when laser irradiates a vertical or nearly vertical groove wall in the horizontal direction, local shape change information caused by surface microcosmic roughness cannot be obtained, and a complete square groove outline cannot be obtained at a time are solved.

The invention belongs to the technical field of laser cladding processing, and provides a method for preparing an ablation-resistant copper alloy through a blue laser cladding process and the ablation-resistant copper alloy. The method comprises the following steps that alloy powder is subjected to ball milling, and mixed powder is obtained; the alloy powder is CuCr powder, CuW powder, ODS-Cu powder, SiO2 / Cu powder or C / Cu powder; and the mixed powder is used for preparing a cladding layer on a copper base material by adopting a blue laser cladding process. According to the method, the characteristic that a copper material is high in blue laser absorptivity is utilized, the problems of heat input accumulation, air holes, inclusions and the like under the conditions of low absorptivity and high energy density are avoided, and laser process parameters are controlled to form a molten pool on the surface of a copper base material; and the coaxial powder feeding device gathers the powder material into the molten pool for melting and rapid cooling and solidification by utilizing protective gas to form a cladding layer with excellent performance, so that the surface of the copper base material is modified, and the performance of the copper base material is improved.

The present invention provides a semiconductor laser-based soft tissue surgery system, which comprises a light source, an optical fiber output assembly, an electronic control assembly, a power assembly, and a cooling and temperature control assembly. The light source comprises a first laser device assembly, a second laser device assembly, a laser shaping assembly, and a first optical fiber coupler; the first laser device assembly is configured to emit visible light laser or emit visible light laser and near-infrared laser at the same time, and the second laser device assembly is configured to generate low-power visible light laser with the power not greater than 5 mW. The laser emitted by the first laser device assembly and the second laser device assembly is collimated and combined by means of the laser shaping assembly, coupled to the optical fiber output assembly by means of the first optical fiber coupler, and then transmitted to a target position.

The present invention discloses a wire winding machine, which includes a sheet metal frame, an X-axis transverse mechanism, a Y-axis vertical mechanism, and a wire winding gun fixing component. A sheet fixing bracket is arranged on one side inside the sheet metal frame, and a sheet to be wire wound is fitted on the outside of the sheet fixing bracket. An X-axis transverse mechanism is arranged on one side outside the sheet metal frame, a Y-axis vertical mechanism is arranged on one side of the outer wall of the X-axis transverse mechanism, and a wire winding gun fixing component is arranged on one side of the outer wall of the Y-axis vertical mechanism. In this wire winding machine, the wire winding gun fixing component uses the wire winding gun as the working piece. A wire winding gun rod is arranged at the front end thereof, and the whole acts vertically on the sheet to be wire wound to insert into the sheet notch for reciprocating winding operation. When the wire winding gun moves in the Z-axis, the front and rear limit switches at the upper end will be automatically activated to control the reciprocating movement amount in the Z-axis, and the wire winding position is aligned by the parallel laser lights on the outside to ensure the accuracy and stability during automatic wire winding.

The invention provides single-point temperature measurement equipment and a temperature measurement system, and belongs to the technical field of infrared temperature measurement. The single-point temperature measurement device comprises a single-point infrared temperature measurement module, a line laser module fixing support and a line laser module, the line laser module fixing support is connected to the single-point infrared temperature measurement module, and the line laser module is connected to the temperature measurement line laser module fixing support. A single-point infrared temperature measurement module body of the single-point infrared temperature measurement module penetrates through the temperature measurement line laser module fixing bracket and the line laser module; at least two groups of line laser lamps are arranged on one side, penetrating through the single-point infrared temperature measurement module body, of the line laser module, laser emitted by the two groups of line laser lamps intersects to form a light beam, and the light beam is in the axial center direction of the single-point infrared temperature measurement module body. And the single-point temperature measuring equipment realizes accurate positioning of temperature measuring points.

The utility model discloses a solar bird repelling device which comprises an installation box, a fixing plate is fixedly connected to the bottom of the installation box, a fixing structure is arranged on the side wall of the fixing plate, a control module is arranged in the installation box, a storage battery is arranged in the control module, laser lamps are embedded in the two side walls of the installation box, and the laser lamps are connected with the storage battery. One end of each laser lamp penetrates through the side wall of the mounting box, a buzzer is arranged in the mounting box, a plurality of sound transmission holes are formed in the periphery of the mounting box, a vertical rod is fixedly connected to the top of the mounting box, a rotating structure is arranged on the side wall of the outer ring of the vertical rod, and a solar panel is fixedly connected to the top of the vertical rod. Through mutual cooperation of the mounting box, the fixing plate, the U-shaped plate, the extrusion plate and other components, through inclined arrangement of the solar panel and arrangement of the rolling shaft, birds can be prevented from falling on the top of the solar panel, bird repelling in various modes can be achieved through wind power, the bird repelling effect of the device is improved, and practicability is high.

The invention discloses a photo-thermal modulation differential microscopic imaging method based on double excitation light excitation, and relates to a photo-thermal modulation differential microscopic imaging method. The invention aims to solve the problem that the existing photo-thermal microscopic imaging technology is limited by the diffraction limit and cannot break through the minimum resolution limit. The method comprises the following steps: step 1, determining a sample piece to be detected, and placing the sample piece in a photo-thermal modulation differential microscopic imaging system; step 2, starting a photo-thermal modulation differential microscopic imaging system; 3, starting an exciting light laser power supply, a probe light laser power supply and a refrigerator; step 4, setting detection parameters in photo-thermal modulation differential microscopic imaging system software in the computer; 5, gold nanoparticles are selected as imaging objects, and multiple times of detection are carried out; step 6, adopting a multi-arm carbon nanotube as a sample, and carrying out multiple times of detection; and 7, closing the equipment after the experiment is finished for 5 minutes. The invention belongs to the technical field of photo-thermal science and detection signal processing.

The utility model provides a laser housing and a semiconductor spatial light laser, comprising a front panel and a rear panel which are oppositely and vertically arranged, and two side plates used for connecting the front panel and the rear panel, a first area enclosed by the front panel, the rear panel and the two side plates is used for placing the semiconductor spatial light laser, and a second area enclosed by the two side plates is used for placing the semiconductor spatial light laser. Detachably connected cover plates are arranged at the upper end and the lower end of the first area; and a fixing assembly for mounting the laser housing on the semiconductor device, the fixing assembly being disposed on any one or more of the front panel, the rear panel, and the two side plates. According to the utility model, the independent fixing assembly is arranged, and a proper laser fixing position is selected according to the internal structures of different semiconductor devices, so that the semiconductor devices are convenient to assemble and replace; the water cooling assembly is fixed through the front panel and the rear panel of the laser shell, and then the upper and lower layers of light source modules are installed, so that the double-layer semiconductor light source modules have supporting areas in the assembling process, and optical fibers are prevented from being bent.

The invention relates to the technical field of space photoelectric detection, in particular to a digital weak light phase-locked control system and method based on phase readout, and the system comprises a laser interference and photoelectric conversion structure, a phase tracking readout module and a weak light phase-locked control module which are connected with one another. The laser interference and photoelectric conversion structure is used for generating a laser heterodyne interference signal based on the local laser and the weak laser, converting the laser heterodyne interference signal into an electric signal and inputting the electric signal to the phase tracking reading module; the phase tracking read-out module is used for tracking the phase of the laser heterodyne interference signal through the electric signal, calculating phase error information and inputting the phase error information to the weak light phase-locked control module; and the weak light phase lock control module is used for controlling the frequency of the local laser based on the phase error information and locking the local laser to the phase of the weak light laser. According to the invention, rapid, high-precision and long-time automatic phase locking under the extremely weak light condition is realized.

The present application relates to the technical field of wood processing, and discloses a high-precision cutting process for woodworking machinery based on laser positioning, comprising the following steps: S1, scanning the surface of wood by a laser sensor to obtain wood data, S2, combining visible light laser and infrared laser, S3, analyzing the characteristics of wood by using an AI algorithm, S4, dynamic compensation of laser error, S5, multi-process collaborative cutting, S6, cooling and heat prevention technology, S7, intelligent environment regulation: real-time monitoring of factory environment parameters to automatically adjust the working state of the laser cutting system, S8, adaptive laser focal length adjustment, S9, adopting an automatic feedback mechanism to record errors in each cutting process in real time. By adopting dual-spectrum laser fusion ranging technology, combining visible light and infrared laser, precise ranging of different wood materials and surface conditions is realized, and the ranging effect is more adaptive and less error, thereby improving the cutting positioning precision.

The utility model discloses a drainage tube fixing device capable of measuring the lifting angle of a bedside, which belongs to the field of medical instruments and comprises a protractor and a ruler strip, the back of the protractor is fixedly connected with a bed board fixing component, the front of the protractor is provided with a sliding groove, and the protractor is movably connected with the ruler strip through a movable shaft. The bottom end of the ruler strip is fixedly connected with the protractor through a locking bolt, and the top end of the ruler strip is fixedly connected with a gradienter; according to the drainage tube fixing device capable of measuring the lifting angle of the bed head, by arranging the protractor, the sliding groove, the ruler strip, the movable shaft, the locking bolt, the gradienter, the movable sleeve, the fixator and the laser lamp, measurement of the lifting angle of the bed head and measurement of the hanging height of the drainage tube can be integrated in the hanging process of the drainage tube; medical staff can conveniently, quickly and accurately find the fixed height of the drainage tube and the lifting angle of the bed head, so that convenience is brought to the work of the medical staff.

The invention relates to the technical field of laser radars, in particular to a vortex light laser radar which comprises a laser emitting unit, an optical receiving unit, an optical modulation unit, a signal detection unit, a signal acquisition and processing unit and a system structure unit. The optical receiving and modulating module divides echo light into a vortex channel and a reference channel through polarization beam splitting. The vortex channel performs orbital angular momentum modulation on echo light by using the receiving modulation unit, converts coherent signal light into annularly distributed vortex light, and filters incoherent noise light through the OAM spatial filtering assembly, thereby realizing spatial separation of signals and noise. The problem of interference of multiple scattered light and background light in a strong scattering medium is effectively solved, the detection signal-to-noise ratio, the maximum detection distance and the target resolution of the laser radar are remarkably improved, and the system is compact in structure, high in engineering practicability and particularly suitable for target detection in underwater, haze and other complex environments.

The present invention discloses a method for generating sound waves in the air using a pulsed laser. The device for generating sound waves is composed of a pulsed laser and an optical modulation system. The pulsed laser is emitted by a pulsed laser and then acts on water vapor in the air after passing through the optical modulation system. The water vapor absorbs the heat energy of the pulsed laser. After the pulsed laser passes through, the water vapor temperature instantly rises and expands, thereby generating pressure waves in the area of ​​action, that is, generating sound waves through the photoacoustic effect. In addition, a three-color visible light laser is used to illuminate the area of ​​action for imaging. The structure of the method for generating sound waves in the air using laser pulses proposed by the present invention is simple. Since water vapor can still be generated even in air with low relative humidity, the effect can be achieved by only following the above steps. The method has research value in the manipulation of microparticles, biological imaging, space imaging, sound communication, and naked-eye three-dimensional display.

The invention discloses an electronic fence system and method for a dewatering belt conveyor, and relates to the technical field of industrial safety, and the system comprises a laser fence which is arranged along the boundary of a dangerous area of the dewatering belt conveyor, adopts the design of emitting visible light to form a visual barrier, and is used for monitoring the light shielding degree when a person enters the dangerous area in real time; and the alarm host is electrically connected with the laser fence and is used for receiving the shielding signal of the laser fence and performing grading processing, and the alarm host judges the shielding degree based on a preset shielding area threshold value. According to the electronic fence system and method for the dewatering belt conveyor, real-time monitoring and visual protection of a dangerous area of the dewatering belt conveyor are achieved by deploying the visible light laser fence, the safety of an operation area is effectively improved, the risk level can be accurately judged according to the personnel shielding degree through a graded early warning and intelligent linkage mechanism, and the safety of the operation area is improved. And sound-light alarm or equipment shutdown is automatically triggered, so that the timeliness of safety protection is enhanced.

The invention discloses a method for projecting a perspective image of a C-arm machine to an inspection part, which comprises the following steps of: firstly, mounting a visible light laser emitting device on a C-arm rack, synchronizing projection axes of a laser beam and an X-ray beam in real time through a mechanical arm angle sensor to form a guide light spot which is overlapped with an image plane, and calibrating to obtain a perspective image of the C-arm machine; the laser mark can reflect the boundary center point of the display image; guide light coinciding with the image plane is formed through the projection axes of the laser beam and the X-ray beam, and a guide light spot coinciding with the image plane is formed. And the projection module can match the virtual image on the display in real time and project the virtual image to the body surface contour of the patient, so that the naked eye visible image of the skeleton can be directly displayed on the body surface of the patient in real time. The doctor does not need to walk back and forth between the display image and the body surface contour of the patient for comparison, meanwhile, the doctor can observe more visually, stereoscopically and accurately, the difference generated by subjective comparison of the doctor is reduced, and the judgment accuracy is improved.

The utility model relates to a kind of electric door opening purple light inner engraving laser machine equipment, host module adopts purple light laser, can carry out inner engraving;First Z-axis moving mechanism drives engraving platform to lift, to cooperate host module to carry out three-dimensional laser inner engraving;The distance between engraving platform and host module is adjusted by driving engraving platform to lift to carry out Z-axis movement, lifting load is low, and it is not easy to produce deviation, precision is high.Second Z-axis moving mechanism drives door cover to lift, without manually lifting again, improve work efficiency and security.First Z-axis moving mechanism is guided by Z-axis auxiliary guide rail and auxiliary sliding block, and it is strong in stability, and bearing torque is high;Second Z-axis moving mechanism is guided by Z-axis auxiliary skeleton and sliding wheel, and the stability and smoothness of sliding are guaranteed.Even more, exhaust mechanism is arranged in vertical mounting seat, and gas in working area and generated dust are discharged by exhaust space and second exhaust fan by first exhaust fan, so as to avoid dust generated by laser cutting to interfere with laser work.

The utility model discloses a multifunctional laser performance system which comprises a shell and a heat dissipation substrate fixedly installed at the bottom of the inner wall of the shell and further comprises a light source, a reflecting mirror frame, a rotary electromagnet, a motor, a galvanometer module, a galvanometer, a galvanometer power source, a galvanometer driver, a front panel, a light source driver, a rear panel, a laser controller and a motor controller. According to the utility model, the laser is output to the galvanometer to scan various animation and light beam effects, so that the laser lamp has the advantage of various expression forms, and the problem that the expression form of the existing laser lamp is generally single and the effect of the laser lamp is directly influenced is solved.

The detection system comprises a condensation gun barrel, a gas supply port and a cold head, the cold head is used for reducing the temperature of the pipe wall of the condensation gun barrel, the gas supply port continuously injects raw material gas into the condensation gun barrel, the raw material gas forms a condensation ice layer, a parallel surface light source is arranged at the front end of the condensation gun barrel, and the parallel surface light source is connected with the condensation gun barrel. The parallel surface light source is a visible light laser with the wavelength range of 375nm-940nm, an array type photodiode is arranged at the rear end of the condensation gun barrel, the parallel surface light source emits linear and surface light beams, and the light beams are transmitted in the condensation gun barrel and are received by the array type photodiode. The invention also provides a detection method. The light source generates parallel light beams in front of the condensed ice layer; the light beam is received by the receiver array after penetrating through the condensation ice layer, and whether the condensation projectile is formed or not is judged by judging the intensity of the light received by the receiver array. According to the invention, the molding process of the condensation projectile can be detected in the whole process, the detection accuracy is improved, and artificial judgment and intervention are reduced.

The application provides a Fe3O4 nanoparticle microscopic imaging detection method based on left and right polarization modulation, belongs to the technical field of photothermal science and detection and signal processing, and solves the problems that current nanometer single particles are difficult to observe and physical and chemical characteristics are difficult to obtain, and specifically comprises the following steps: determining a sample to be detected and preparing a slide sample; starting a computer, a data acquisition card, a lock-in amplifier, a galvanometer controller and a function generator; starting a power supply of an excitation light and a detection light laser and a refrigerator; setting detection parameters, setting laser power / current parameters, setting modulation parameters, and scanning and detecting the sample to be detected; loading a magnetic field; reading signals from the data acquisition card by the computer to obtain a photothermal detection result image; changing different laser parameters and the size of the magnetic field, repeating the above steps, obtaining a circular dichroism and magnetic circular dichroism detection result, measuring a magnetization curve, and monitoring a single nanoparticle magnetic moment flipping process.

The present invention discloses a splash-proof device and method for welding sensors, which includes a base with a lens light outlet hole and a laser light outlet hole; on the inner side of the base of the lens light outlet hole and the laser light outlet hole, there are a lens baffle and a laser baffle, and a rocker and a swing rod are arranged between the lens baffle and the laser baffle; the swing rod is meshed with the output shaft gear of the servo motor, and the swing rod drives the rocker to rotate, which is converted into the reciprocating linear motion of the lens baffle and the laser baffle in the base, so as to realize the opening and closing of the lens light outlet hole and the laser light outlet hole. This device has the characteristics of compact structure, small occupied space and self-cleaning. During the use of the laser weld sensor, it can effectively block the influence of splashing welding slag particles on the welding sensor. And this structure can be applied to occasions that require lens protection such as line structured light laser sensors, surface structured light laser sensors, binocular sensors, etc.

The present invention relates to a device for water-in-air generation of droplets comprising a collection vessel, a droplet generation device positioned above the collection vessel comprising a piezoelectric transducer (21) and at least one capillary (22) with a nozzle (23) pointing downwards to the collection vessel; a laser source (30) generating a visible light laser beam (31) with tophat profile, and an imaging setup for continuously monitoring the droplet generation (40). Said device is particularly useful for preparing monodisperse giant unilamellar vesicles of any composition and three-dimensional microenvironment niches for cells or synthetic cells in high throughput.

The application provides a laser cladding powder and a method for laser cladding on an aluminum alloy surface, and belongs to the technical field of laser cladding. The laser cladding powder comprises Mo powder, V powder, Al powder, AlB2 powder, CeO2 powder and Ti powder. Since the aluminum alloy substrate and the titanium powder are both non-ferrous metals, the absorption utilization rate of near-infrared light is lower than that of visible light. By adopting a composite light beam composed of blue light and near-infrared light for cladding, the welding heat input can be reduced, the formation of too much brittle hard compound at the interface can be inhibited, and the interface bonding can be ensured. In the cladding process, the spot formed by the near-infrared light laser beam rotates around the spot formed by the blue light laser beam, so that the weld forming can be improved, and defects can be reduced. The method for laser cladding on the aluminum alloy surface can prepare a wear-resistant coating on the aluminum alloy surface, so that the wear resistance of the aluminum alloy surface can be improved.

The invention provides a line structure light laser surface modeling method and a line structure light calibration method, and the line structure light calibration method comprises the following steps: (1.1) collecting data of a calibration laser surface; (1.2) calculating a point cloud center and a covariance matrix based on the collected point cloud data; (1.3) establishing a laser surface coordinate system on the cross section of the laser surface; and step (1.4), converting all point cloud data from a camera system to a laser coordinate system, and fitting a curvilinear equation.

The utility model discloses a slit all-round-light laser lamp, which comprises a mounting box, a laser driver and a laser diode are arranged in the mounting box, the front end part of the laser diode extends into a long and narrow light guide groove, and the light guide groove is arranged at one end part or one side wall of the mounting box and is vertically or obliquely intersected with the laser diode. According to the utility model, the mounting boxes which are detachably and fixedly connected are arranged, the laser driver and the laser diode are arranged in the mounting boxes, and one end part or the side wall of each mounting box is provided with the light guide groove which is vertically or obliquely intersected with the laser diode; light emitted by the laser diode can be scattered towards the periphery by 360 degrees and then scattered out from the front or the lower portion of the light guide groove, the effect of all-round lighting on the front or the lower portion of the installation box is achieved, and output of different proportions of red, green and blue can be changed by changing output parameters of the laser driver. Therefore, a preset lighting effect is achieved; the lamp is simple in overall structure and convenient to install.

The invention discloses a microchip single-frequency pulse vortex light laser generating device which comprises a pump light source, an output collimating mirror, a focusing lens, an axicon and a microchip resonant cavity which are sequentially and coaxially arranged. A space light beam or an optical fiber coupling light beam emitted by the pump light source is expanded and collimated by the output collimating lens, then converted by the focusing lens and the axicon and shaped into an annular light beam without orbital angular momentum, the annular light beam is irradiated to the microchip resonant cavity, the microchip resonant cavity is moved in the direction of a light path, and the orbital angular momentum is formed. The positions of the microchip resonant cavity and the focus of the focusing lens are adjusted, transverse mode matching in the resonant cavity is achieved, single-mode intracavity oscillation is generated, and a single-frequency pulse vortex beam is output by controlling the inclination angles of the front surface and the rear surface of the microchip resonant cavity.

The utility model relates to electronic component technical field, and disclose an electronic component packaging positioning device, including support plate and drive assembly, drive assembly sets up at the bottom of support plate, the top of drive assembly is provided with the connecting plate, the top pivoted connection of connecting plate has the guide plate, the utility model discloses through setting up the cylinder can drive connecting seat to remove, makes connecting seat drive connecting plate to rotate, makes connecting plate drive guide seat to remove, makes guide plate drive linkage plate to remove, and then makes linkage plate drive clamping plate to remove to reach the effect of clamping positioning when the electronic component packaging, through setting up the push rod can drive the slide plate to slide, makes the slide plate along the locating plate recess to slide, and then the slide plate drive laser emitter and laser lamp to remove to reach the cleaning path of laser lamp to the electronic component and slide adjustment.

The invention discloses a dual-optical-path coaxial transmit-receive system and a laser radar. The transmit-receive system comprises a laser generation module, a silicon optical chip, a short-focus lens, an optical path turning module, a beam splitter prism and a long-focus lens. The silicon optical chip comprises a transmitting waveguide and a receiving waveguide; the laser generation module generates laser; the short-focus lens, the light path turning module, the beam splitter prism and the long-focus lens are sequentially located on a laser light path, the short-focus lens collimates laser passing through the transmitting waveguide, then the laser enters the light path turning module to be subjected to light path turning, and the laser enters the beam splitter prism; the beam splitter prism reflects the laser to an object to be measured; receiving return laser reflected from the object to be measured; and the long-focus lens focuses the returned laser to the receiving waveguide. According to the above structure, through the arrangement of the short-focus lens and the long-focus lens, laser spots are reduced, the light energy density of the spots is enhanced, the light receiving aperture is enlarged, the light receiving energy is improved, it is guaranteed that the emitted laser spots are within the effective receiving view field of the long-focus lens, and the light receiving efficiency and the distance measuring accuracy are improved.

The application discloses a high-order superposition state LG mode generating device and method, relates to the optical and laser technical field, and comprises a pump light source, a first plano-convex lens, a cone lens, a second plano-convex lens and a laser resonant cavity; the laser resonant cavity is composed of a gain medium, a third plano-convex lens and a plane mirror; the pump light source generates laser, the laser is collimated to the cone lens through the first plano-convex lens, the generated Bessel ring-shaped light beam is focused into the laser gain medium through the second plano-convex lens, the gain medium is excited to generate a ring-shaped vortex light beam, after passing through the third plano-convex lens, part of the laser oscillates in the laser resonant cavity, and the high-order superposition state LG mode is output through the plane mirror, namely the output coupling mirror of the laser resonant cavity. The application provides a simple, convenient, compact, low-precision control demand and high-conversion-efficiency solid vortex light laser (high-order superposition state LG mode generating device) to realize the generation of super-high-order number LG vortex light beams.

The invention discloses an absolute gravimeter based on an optical lattice clock and a working method thereof, and belongs to the technical field of gravity measurement. The absolute gravimeter comprises an optical lattice clock physical device, a lattice light laser, a first polarization beam splitter prism, a first optical reference cavity, a second polarization beam splitter prism, an optical frequency comb, a first acoustic optical modulator, a first linear polarization polarizer, a convex lens, a concave reflector, a clock laser laser, a third polarization beam splitter prism and a second optical reference cavity. And a second acousto-optic modulator and a second linear polarization polarizer. Different from a traditional absolute gravimeter based on laser interference and atom interference, the absolute gravimeter provided by the invention has the advantages that the gravitational acceleration sensed by atoms can be determined by measuring the Watille-Stark sideband spacing in a shallow light lattice and the lattice light wavelength along the gravity direction of the light lattice; the absolute gravimeter has the potential of reducing the measurement error of gravity acceleration to 0.1 mu Gal or even lower, and the precision of the absolute gravimeter is higher than that of a traditional absolute gravimeter by more than one order of magnitude.