55 results about "Greenlight laser" patented technology

The embodiment of the invention discloses an optical fiber laser and a green laser device. The fiber laser comprises a seed source and at least one stage of fiber amplifier. The seed source comprises a first pumping source, a first pumping beam combiner, a first fiber bragg grating, a first ytterbium-doped fiber, a second fiber bragg grating and a second ytterbium-doped fiber; the optical fiber amplifier comprises a second pumping source, a second pumping beam combiner and a third ytterbium-doped optical fiber; the second pumping source comprises a third pumping source, a third pumping beam combiner, a third fiber bragg grating, a fourth ytterbium-doped fiber and a fourth fiber bragg grating. The optical fiber laser provided by the embodiment of the invention adopts a cascade pumping technology, so that the power and brightness of fundamental frequency laser output by the narrow linewidth optical fiber laser are effectively improved, the nonlinear effect of the fundamental frequency laser and the thermal load of the optical fiber are remarkably reduced, and the beam quality and output power of the fundamental frequency laser are remarkably improved; and a foundation is laid for higher green light output.

The invention discloses a green laser and a laser welding machine. The green laser comprises a pumping source, a first reflector, a laser crystal, a polarization beam splitter, a second reflector, a frequency doubling crystal, a telescope lens group and a spectroscope; the pumping source provides pulse pumping light; the laser crystal absorbs the pulse pump light to generate fundamental frequency laser in an infrared band, the fundamental frequency laser enters the polarization beam splitter and is split into P polarized light and S polarized light, the P polarized light is transmitted out of the resonant cavity, and the S polarized light is transmitted in the resonant cavity; and the telescope lens group converges the fundamental frequency laser to the frequency doubling crystal to generate frequency doubling laser of a green light wave band, and the frequency doubling laser is transmitted by the spectroscope and then is output. The green laser is used for spot welding of high-reflection materials such as copper and aluminum, the maximum single pulse energy can reach 5 J, the maximum peak power is 2 kW, the pulse width ranges from 0.05 ms to 5 ms, the problem of low absorption of the high-reflection materials to laser in the 1-micron wave band is solved, and the green laser is an edge tool for precise spot welding of the high-reflection materials.

The invention relates to a system and a method for detecting thermal stress of an aero-engine blade. The system comprises a green laser, a near-infrared laser, and an optical splitter, a scanning control unit, a signal receiver and a processing module which are connected in sequence, the green laser and the near-infrared laser are respectively connected with the optical splitter; the green laser is used for outputting a first laser beam to the engine blade; the near-infrared laser is used for outputting a second laser beam to the engine blade; the optical splitter is used for combining the first laser beam and the second laser beam to obtain a combined beam; the scanning control unit is used for controlling the combined light beam to scan engine blades; the signal receiver is used for receiving an ultrasonic signal and a photoacoustic signal generated by the engine blade based on the combined light beam; and the processing module is used for processing the ultrasonic signal and the photoacoustic signal to generate a detection result. According to the invention, an accurate and efficient three-dimensional visual solution can be provided for the detection of the thermal stress of the aero-engine blade.

The invention provides a remote sensing water depth detection method, medium and system based on blue-green laser, and belongs to the technical field of water depth measurement, and the method comprises the steps: firstly, obtaining blue and green laser signals with known transmitting power, and collecting water surface reflection and water bottom reflection data under different incident angles; based on the data, a laser incident angle matrix is established, and a water surface reflection coefficient and a water surface transmission coefficient are calculated. Meanwhile, an atmospheric transmission matrix is established according to the meteorological parameters, and the transmission loss of the laser signal in the atmosphere is calculated. Then, a water surface fluctuation model is established, and water surface reflection and water bottom reflection signals are separated; and establishing a water depth calculation equation set by using the blue-green dual-wavelength signal intensity ratio matrix and combining with the optical characteristics of the water body. And finally, according to the propagation time difference and the equivalent propagation speed of the laser signal in water, solving a water depth equation set, and finally obtaining a water depth topographic map. The problem that in the prior art, a water surface reflection signal and a water bottom reflection signal cannot be separated, and the measurement precision is affected is solved.

The invention belongs to the field of high-thermal-conductivity composite materials, and particularly relates to a 3D printing copper-diamond composite high-thermal-conductivity material and a preparation method thereof.The 3D printing copper-diamond composite high-thermal-conductivity material comprises a copper matrix and diamond particles dispersed in the copper matrix, and the surfaces of the diamond particles are provided with metal coatings; the copper matrix is formed by copper powder with the particle size of 10-100 microns, and the volume fraction of the diamond particles in the composite material is 40%-50%; according to the method, the titanium plating layer is prepared on the surface of the diamond, the stable titanium carbide transition layer is formed through the reaction of titanium and carbon, the interface thermal resistance between the diamond and copper is remarkably reduced, the interface bonding strength is improved, and heat conduction is facilitated. The selected area green laser 3D printing technology is adopted, a green laser device shows remarkable advantages in the field of 3D printing of copper alloy, and the heat conductivity of the prepared composite material can reach and is remarkably higher than that of pure copper by optimizing the diamond volume fraction and 3D printing process parameters.

The invention discloses an all-solid-state high-power continuous wave single-frequency ultraviolet laser, and relates to the technical field of photoelectrons and lasers, and the all-solid-state high-power continuous wave single-frequency ultraviolet laser comprises a green laser, a light collimation polarization focusing structure, a frequency doubling resonant cavity, a resonant cavity locking structure and a BBO crystal. The frequency doubling resonant cavity comprises an incident mirror, a first reflecting mirror, piezoelectric ceramics, a second reflecting mirror and an emergent mirror along the laser transmission direction; the first reflecting mirror is fixed on the piezoelectric ceramic; the piezoelectric ceramic is electrically connected with the resonant cavity locking structure; based on a voltage output signal of the resonant cavity locking structure, the expansion and contraction amount of the piezoelectric ceramic is adjusted so as to change the cavity length of the frequency-doubled resonant cavity; and the BBO crystal is arranged at the beam waist between the second reflecting mirror and the emergent mirror. The laser conversion efficiency can be improved while the laser output stability characteristic is improved, and the light beam quality is ensured.

The utility model relates to a laser beam combining device and a projector, the laser beam combining device comprises a first laser assembly, a second laser assembly and a beam combining structure, and the first laser assembly comprises a first green laser and a first blue laser; the second laser assembly comprises a second green laser and a second blue laser; the beam combining structure is used for combining light output by the first laser assembly and light output by the second laser assembly, the beam combining structure comprises a partition diaphragm, the partition diaphragm comprises a first area and a second area which are connected, and blue light output by the first blue light laser device and green light output by the second green light laser device are combined through the first area and then output through the second area; and green light output by the first green light laser and blue light output by the second blue light laser are combined through the second area. According to the invention, by arranging the partition diaphragm, the blue light and the green light of the first laser assembly and the second laser assembly are combined on the same partition diaphragm, so that the optical expansion amount of the combined light is greatly reduced.

A half-wave plate and a focusing lens are sequentially arranged on an output light path of a pulse width adjustable infrared laser, the focusing lens is connected with a frequency doubling crystal, the frequency doubling crystal is connected with a frequency tripling crystal, the output end face of the frequency tripling crystal is cut into a Brewster angle, and the output end face of the frequency tripling crystal is connected with a pulse width adjustable infrared laser. The output infrared laser is shielded by the infrared light blocking block after being transmitted in the space, the output green laser is shielded by the green light blocking block after being transmitted in the space, the frequency tripling crystal is connected with the imaging lens, the imaging lens is connected with the input surface of the wedge-shaped lens, and the input surface of the wedge-shaped lens is cut into a Brewster angle. Through fine adjustment of the distance between the imaging lens and the frequency tripling crystal and the distance between the wedge-shaped lens and the imaging lens, the ultraviolet laser output by the wedge-shaped lens becomes circular and is output. The Brewster angle output surface of the frequency tripling crystal reduces the ultraviolet damage probability and separates infrared light, green light and ultraviolet light. The position of the imaging lens is finely adjusted to compensate a light spot ellipse caused by a walk-off effect during frequency doubling.

The invention discloses a tunable white laser system, which belongs to the technical field of laser, and comprises a light source emitting device, the light source emitting device is coupled with a laser beam combining device, the light source emitting device comprises a first light source, a second light source and a third light source, the first light source is a cyan laser source or a green laser source, and the second light source is a third light source. The second light source is a red light laser source, the third light source is a cyan light laser source or a green light laser source, the third light source and the first light source are different in color, and the laser beam combining device comprises a beam splitter assembly and an optical fiber beam combining assembly. According to the tunable white light laser system, the light source with the wave band above blue light is adopted to generate white light laser, complex devices such as a super-continuum spectrum generation device and a white light extraction device are not needed, the system has the advantages of being adjustable in real-time chromaticity and easy to integrate, blue light pollution to the external environment in the white light generation process is avoided, and the system is suitable for large-scale popularization and application. The method has stronger condition adaptability and practicability, and the stability of mixed light is good.

The invention relates to the technical field of laser processing, and discloses a metal polymer composite material cutting process which comprises the following steps: placing a to-be-cut piece on a cutting platform; the to-be-cut piece comprises a metal layer and a polymer layer which are stacked; adjusting parameters of an output laser beam of the laser; the output wavelength lambda of the laser is controlled, so that the laser generates green laser, and the polymer layer is subjected to cold cutting; the value of the output power P and the value of the output pulse frequency f of the laser are controlled, so that the green laser is emitted in a pulse mode, and laser energy is concentrated and acts on the metal layer at intervals; according to the cutting process of the metal polymer composite material, the two-photon energy of the green laser is sufficient to reach the fracture energy of molecular bonds of the polymer layer, the polymer layer can be directly cut without reaching the melting point of the polymer layer, the energy of the pulse laser is concentrated and spaced, and the heat influence caused by cutting the metal layer is discontinuously generated; therefore, the influence on the interface of the metal layer and the polymer layer is reduced, and the cutting quality is improved.

The present application provides an annular spot laser processing system, including a first laser light source, a first half-wave plate, a first dichroic mirror, a second laser light source, a second half-wave plate, a first reflector, a first laser crystal, a second laser crystal, a second dichroic mirror, a first lens, a second lens, a third dichroic mirror, a third lens, a fourth lens, a fourth dichroic mirror, a fifth dichroic mirror, a galvanometer mechanism, a target workpiece, and a platform. By generating a first laser beam and a second laser beam with mutually perpendicular polarization directions through the first laser light source and the second laser light source, and combining and frequency doubling the first laser beam and the second laser beam, a high-power green laser with a wavelength of 500 - 550 nm can be obtained, and a composite laser with a high-power green laser with a wavelength of 500 - 550 nm as the main laser can be generated without using a complex system structure. The entire laser processing process has high efficiency, extremely small spatter, little thermal influence on non-target processing areas, and relatively low production and manufacturing costs.

The application provides a high-power optical fiber green laser, and belongs to the technical field of optical fiber lasers; specifically comprises a seed source module, which is used for providing a seed light source with adjustable pulse width and frequency, and performing phase modulation on the seed light source to broaden the spectrum; a first amplification unit is connected with an output end optical path of the seed source module and is used for performing power amplification on the seed light; a second amplification unit is connected with an output end optical path of the first amplification unit and is used for performing power amplification on the signal light again; a third amplification unit is connected with an output end optical path of the second amplification unit and is used for performing third power amplification on the laser; a frequency doubling output unit is connected with an output end optical path of the third amplification unit and is used for performing frequency doubling on the laser amplified for the third time, so as to output green laser with a specified divergence angle and spot size. The application improves the SBS threshold from two aspects of phase modulation and shortening the length of the optical fiber, so that the peak power of the optical fiber green laser is higher.

The invention provides a dual-wavelength beam laser composite additive manufacturing device which comprises a powder feeding nozzle, a red light laser, a green light laser and a scanning galvanometer. A red laser beam emitted by the red laser is output by the laser output channel and is focused on the processing surface to form a red light spot; a green laser beam emitted by the green laser is controlled by the scanning galvanometer to enter the red laser beam in a circular swinging mode and is focused on the machining face to form a green light spot, and the formed green light spot is located on the inner side of the red light spot. The invention provides a dual-wavelength beam laser composite additive manufacturing method. A scanning galvanometer is adopted to control a green laser beam to periodically swing in a red light spot coverage area according to a set circular path. According to the method, the dynamics and microstructure of the molten pool are optimized, the thermal gradient and the cooling rate are adjusted, and ideal conditions are provided for high-density manufacturing of materials such as nickel-based high-temperature alloy, aluminum alloy and copper alloy.

The present invention discloses a semiconductor laser comprising: a substrate, a lower confinement layer, a lower waveguide layer, an active layer, an upper waveguide layer, and an upper confinement layer, arranged in order from bottom to top; the active layer comprising a well layer and a barrier layer; the electron effective mass of the well layer of the active layer being smaller than the electron effective mass of the barrier layer, the spontaneous polarization coefficient of the well layer of the active layer being smaller than the spontaneous polarization coefficient of the barrier layer, and the bandgap width of the well layer of the active layer being smaller than the bandgap width of the barrier layer. The present invention can suppress InN phase separation, segregation, and composition fluctuation in high-In content semiconductor lasers, effectively improve the crystal quality and interface quality of the active layer, effectively enhance the electron-hole recombination efficiency of the active layer, and effectively reduce defects and non-radiative recombination centers, thereby effectively improving the slope efficiency of green lasers.

The utility model provides a novel green laser, which comprises a shell body, a plurality of groups of heat sinks are arranged in the shell body, each group of heat sinks comprises a plurality of heat sinks, a heat dissipation gap is arranged between every two adjacent heat sinks, each heat sink is connected with a laser chip, the heat sinks are arranged in the X-axis direction of the shell body, and the heat sinks are arranged in the X-axis direction of the shell body. The laser chip and the first optical lens group are correspondingly arranged; the packaging size is reduced, the heat dissipation performance is improved, installation and production are more convenient, and meanwhile the production cost is reduced.

The application discloses a laser, a laser light source and a laser projection device, and belongs to the projection display field.The laser comprises a substrate and a plurality of laser units arranged in an array on the substrate.In the application, the laser comprises two rows of laser units, one row of red light laser units for emitting red laser, and the other row of green light laser units for emitting green laser and blue light laser units for emitting blue laser.Under the premise of ensuring the brightness of the laser beam emitted by the laser, the number of laser units in the laser is reduced.Thus, the overall volume of the laser can be effectively reduced, and the volume of the laser projection device integrated with the laser is small.

The application discloses a perovskite laser scribing device, which comprises a base (1), wherein the base (1) is provided with a Y-axis driving part (2) and a mounting rack (3), and the moving end of the Y-axis driving part (2) is provided with a workbench (4); the mounting rack (3) is provided with an X-axis driving part (5), the moving end of the X-axis driving part (5) is provided with a Z-axis driving part (6), and the moving end of the Z-axis driving part (6) is provided with an infrared laser scribing module (7) and a green laser scribing module (8); the infrared laser scribing module (7) is used for emitting infrared laser to perform scribing processing on a workpiece on the workbench (4); the infrared laser scribing module and the green laser scribing module are used for double-light-path processing, the processing efficiency is improved, and meanwhile, the optical path positioning mechanism is used to drive a collection camera to move, so that the collection camera is accurately corresponded with a scribing point, and the processing accuracy is ensured.

The invention discloses a preparation method of a low-dislocation high-efficiency GaN substrate for a laser. The preparation method comprises the following steps: providing a heterogeneous substrate; a layer of mask is deposited on a heterogeneous substrate, the mask is further subjected to uniform glue etching to be patterned, a GaN single-crystal crystal column is grown on the basis of the patterned mask in a heteroepitaxial mode through an HVPE method, and the GaN single-crystal crystal column is subjected to linear cutting and polishing to form a product. And the GaN crystal column top layer can be used as the original substrate, and is repeatedly used after being subjected to wet etching. The method has the advantages that through mask HVPE epitaxial growth, special treatment of homogeneous epitaxy and wet etching can be utilized, so that lattice mismatch does not exist in homogeneous epitaxy, pits are formed in dislocation positions through wet etching, the epitaxy disappears during regrowth, and in addition, along with continuous increasing of the thickness, the thickness of the epitaxy is gradually increased. Dislocation extending from an original substrate interface layer can be continuously annihilated and disappeared; the top layer of the GaN crystal column generated in each cycle can be repeatedly used; the dislocation density is reduced, so that the polarization effect of the blue-green laser is reduced.

The application provides a kind of annular spot laser processing system, including laser light source, first lens, laser crystal, first dichroic mirror, second lens, second dichroic mirror, third dichroic mirror, third lens, fourth dichroic mirror, galvanometer mechanism, target workpiece, platform.The annular spot laser processing system only needs to generate composite laser by using one laser light source, realizes composite laser processing effect, and in the processing process, the main laser can use 500-550nm green laser, which is located in the central inner ring area.The auxiliary laser can use 1000-1100nm infrared light, which is located in the outer ring area, mainly used for preheating and heat transition of target workpiece working area, used for improving green light processing efficiency.The whole process has little spatter, and the heat influence of non-target processing area is small, which greatly improves the workpiece processing precision and yield, and the light conversion efficiency of laser is high, which greatly improves the energy utilization, and the production cost is also lower.

The invention provides an all-fiber white light laser for laser display. The all-fiber white light laser comprises a blue light pumping source; the blue light pumping source is connected with the resonant cavity assembly through the multimode tail fiber; a gain optical fiber is arranged in the resonant cavity assembly; after the pumping blue light excites the gain optical fiber, red laser and green laser are generated at the same time, and the red laser and the green laser are synthesized into white laser in the multimode output optical fiber with the residual pumping blue light. According to the white light fiber laser, an all-fiber structure is achieved, mixed white light of RGB three primary colors is obtained through a single gain fiber, and the white light fiber laser has the advantages of being high in conversion efficiency, simple in structure, easy to miniaturize and the like.

The invention discloses a warship laser lighting system, and relates to the technical field of laser lighting. The lighting system comprises a laser, a lens, an optical fiber, a parabolic mirror and a ceramic assembly which are arranged in sequence. The laser comprises a blue laser and a green laser; the lens comprises a first lens and a second lens; a light hole is formed in the bottom of the parabolic mirror; the ceramic assembly is arranged in the parabolic mirror and comprises fluorescent ceramic, porous ceramic and transparent ceramic which are arranged in sequence. According to the invention, the blue light laser and the green light laser are excited to the surface of the fluorescent ceramic through the optical fiber, the scattering requirements of white light illumination and green light laser are met by designing the surface roughness and the packaging structure of the fluorescent ceramic, and the integration level of the light source is effectively improved.

The invention relates to a high-power green laser synthesis system based on a rotary frequency doubling crystal and multiple beams of infrared pulse laser, and belongs to the technical field of laser. The system comprises a multi-beam pulse infrared laser device, a frequency doubling crystal module, an annular rotating mechanism, a beam combining device, a continuous infrared laser device, a laser frequency regulation and control device and a rotating driving control system. The four beams of pulse infrared laser sources are symmetrically arranged along the circumferential edge, and periodically staggered output is realized through frequency regulation and control; the multiple frequency doubling crystals are distributed along the rotating circular ring at equal intervals and are sequentially aligned with laser pulses under driving of the rotating mechanism, and efficient frequency doubling is achieved. The center continuous infrared laser generates stable green light through frequency doubling of the fixed crystal. Finally, the green light generated by the multiple frequency doubling crystals and the central green light are integrated into a single light beam through a beam combining device to be output. According to the system, the power upper limit and the stability of green laser are remarkably improved through energy sharing of polycrystals, rotary dynamic matching and annular cooling, and the problems that existing green laser is limited in power and serious in heat effect are solved.

The utility model provides an extra-cavity frequency doubling continuous green laser. The extra-cavity frequency doubling continuous green laser comprises a light source used for generating pump light, a resonant cavity assembly, a polarization beam splitter, a frequency doubling element and a reflector assembly. The resonant cavity assembly is used for receiving pump light generated by the light source and converting the pump light into non-polarization-maintaining infrared laser; the polarization beam splitter is used for splitting the non-polarization-maintaining infrared laser into a first path of polarization infrared laser and a second path of polarization infrared laser; the reflector assembly is used for respectively changing the light path directions of the first path of polarized infrared laser and the second path of polarized infrared laser; the frequency doubling element is used for converting at least part of the first path of polarized infrared laser and at least part of the second path of polarized infrared laser into green laser; and the reflector assembly is also used for transmitting the first path of residual polarized infrared laser and the second path of residual polarized infrared laser to the polarization beam splitter and outputting the first path of residual polarized infrared laser and the second path of residual polarized infrared laser through the polarization beam splitter. The extra-cavity frequency doubling continuous green laser provided by the embodiment of the utility model can improve the frequency doubling efficiency, stability and safety of green laser.

This application discloses a welding method for a negative electrode current collector of a lithium battery and a lithium battery. The welding method for the negative electrode current collector of a lithium battery includes: pre-treating the negative electrode tabs of a cylindrical cell to make the negative electrode tabs on the same end of the cylindrical cell adhere to each other; fixing the cylindrical cell and the negative electrode current collector so that the surfaces of the negative electrode tabs of the cylindrical cell and the negative electrode current collector are adhered; the negative electrode current collector is a copper negative electrode current collector with a cleaned surface; and welding the negative electrode tabs and the negative electrode current collector using a green laser according to a preset welding speed, preset welding power, preset welding frequency, and preset welding trajectory. The welding method for the negative electrode current collector of this application can directly weld copper negative electrode current collectors, eliminating the nickel plating process of the negative electrode current collector, thus simplifying the welding process and reducing welding costs.

The gallium nitride-based high-power green laser chip structure comprises a substrate and an epitaxial layer, the epitaxial layer is arranged on the upper layer of the substrate, the surface of a first cavity surface of the epitaxial layer is plated with an antireflection layer, and the surface of a second cavity surface of the epitaxial layer is plated with a high-reflection layer. The antireflection layer comprises a first sub-antireflection layer, a plurality of second sub-antireflection layers and a plurality of third sub-antireflection layers which are sequentially plated on the surface of the first cavity surface, and the plurality of second sub-antireflection layers and the plurality of third sub-antireflection layers are sequentially and alternately arranged to form a periodic structure; the epitaxial layer has a first valley electric field intensity and a first peak electric field intensity, and an interface area between the first sub-antireflection layer and the first second sub-antireflection layer has a second peak electric field intensity. The electric field intensity between the first cavity surface of the epitaxial layer and the interface region of the first sub-antireflection layer is between the first valley electric field intensity and the second peak electric field intensity. The threshold current density of the high-power green laser can be reduced, and the slope efficiency can be improved.

The invention provides a remote sensing water depth detection method, medium and system based on blue-green laser, which belongs to the field of water depth measurement technology, and includes: first, obtaining blue light and green light laser signals with known transmission power, and collecting water surface reflection and water bottom reflection data under different incident angles. Based on these data, a laser incident angle matrix is ​​established to calculate the water surface reflection coefficient and the water surface transmission coefficient. At the same time, an atmospheric transmission matrix is ​​established according to meteorological parameters to calculate the transmission loss of the laser signal in the atmosphere. Then, a water surface fluctuation model is established to separate the water surface reflection and water bottom reflection signals. Using the blue-green dual-wavelength signal intensity ratio matrix, combined with the optical characteristics of the water body, a water depth calculation equation group is established. Finally, according to the propagation time difference and equivalent propagation speed of the laser signal in the water, the water depth equation group is solved, and finally a water depth topographic map is obtained. The problem that the prior art cannot separate the water surface reflection signal and the water bottom reflection signal, which affects the measurement accuracy, is solved.

A road surface collapse repair machine includes a support frame. The support frame includes an installation outer tube. An inner rod is slidably fitted inside the outer tube. The end of the inner rod is fixedly connected to an installation plate. There is an upper connecting plate on one side of the installation outer tube. An electric cylinder is installed on the upper connecting plate. The telescopic rod of the electric cylinder is connected to the installation plate. A turntable is rotatably connected to the middle of the installation plate. A driving mechanism is provided on the top of the installation plate. A foaming agent filling mechanism and a spraying mechanism are provided on the top of the turntable. A pneumatic hammer is provided at the bottom of the turntable. The present invention can mark the collapse position with the help of an LD green laser head, calculate the area of the collapse area with the help of a control board according to information such as its vertical height and deflection angle, automatically calculate the number of drilling holes and the drilling hole positions according to the area of the collapse area, and mark the drilling hole positions with the help of the spraying mechanism. The use of an integrated pneumatic hammer and foaming agent filling mechanism solves the defects of low manual efficiency, large errors and poor effects caused by manual experience judgment in the prior art.

The invention discloses a high-efficiency all-solid-state quasi-continuous green laser, and belongs to the technical field of lasers. The laser comprises a first dual-wavelength high-reflectivity mirror, a first Q-switch, a first LD side pumping module, a second dual-wavelength high-reflectivity mirror, a quartz rotator, a third dual-wavelength high-reflectivity mirror, a second LD side pumping module, a second Q-switch, a diaphragm, a harmonic output mirror, a frequency doubling crystal and a fourth dual-wavelength high-reflectivity mirror. The first dual-wavelength high-reflectivity mirror, the second dual-wavelength high-reflectivity mirror, the third dual-wavelength high-reflectivity mirror, the harmonic output mirror and the fourth dual-wavelength high-reflectivity mirror form a resonant cavity. An intracavity frequency doubling scheme is adopted, the frequency doubling crystal is placed in a laser resonant cavity for frequency doubling, frequency doubling light is directly output from the resonant cavity, the LBO frequency doubling crystal abuts against the 45-degree harmonic output mirror so that the frequency doubling efficiency can be maximized, and hectowatt-level green light output can be achieved by matching the double LD side pumps and the double Q-switched switches with the 90-degree quartz rotator.

The invention discloses a two-in-one multifunctional laser module and an installation assembly, which relate to the field of laser technology, and include a laser module component, wherein the laser module component includes a module shell, the rear end of the module shell is connected to an adjustment base, and two assembly slots are arranged on the front of both ends of the module shell, an infrared laser module is installed in the inner cavity of the left assembly slot for irradiating infrared laser, and a green laser module is installed in the inner cavity of the right assembly slot for irradiating green laser; the invention firstly integrates two laser modules with different uses into one by setting the laser module component, so as to realize that one set of products can meet multiple uses, and can meet the use requirements in various different lighting environments, so as to solve the problem that most of the current laser modules have a single function, and then have both visible light tracking and indication functions and night infrared tracking and indication functions, and the two functions do not need to replace accessories, are integrated, and have high precision and high efficiency.

The present invention relates to the field of manufacturing white light laser light sources, and specifically to a device and method for generating a white light laser light source. The device includes a first pump laser for generating a first pump laser; a second pump laser for generating a second pump laser; the wavelength of the first pump laser is smaller than the wavelength of the second pump laser; a laser beam combiner for synthesizing a pump laser with the same output light path direction from a first pump laser and a second pump laser entering the laser beam combiner from different incident light paths, i.e., a combined pump laser; a periodically polarized crystal generates a violet laser from part of the first pump laser in the combined pump laser, generates a green laser from the second pump laser, and generates a white light laser from the remaining first pump laser in the violet laser, the green laser, and the combined pump laser. The periodically polarized crystal of the present invention converts two incident pump laser beams into violet laser and green laser at the same time, respectively, to meet the necessary conditions for generating a white light laser light source.