1041results about "Laser cooling arrangements" patented technology

The invention discloses a laser heat dissipation module and a heat dissipation method, and relates to the technical field of lasers, the laser heat dissipation module comprises a laser arranged on a support and a heat dissipation assembly detachably connected with the laser; the heat dissipation assembly comprises a fan, a heat conduction module and a fin set composed of a plurality of fins, the fin set is arranged on the heat conduction module, the fan is arranged on the side, away from the heat conduction module, of the fin set, and the heat conduction module and the fan are both in the normal direction with the fins. By the adoption of the double-air-path structural design, the circulation path of air between the fins is shortened, so that the retention time of hot air between the fins is shortened, and the situation that the heat dissipation efficiency is reduced due to the fact that the temperature of the air gradually rises in the circulation process is avoided. In addition, due to the fact that the air circulation path is short, the installation direction of the fan does not need to be considered, and therefore heat dissipation can be conducted no matter the fan rotates forwards or backwards.

The embodiment of the invention provides a laser control method and device, electronic equipment and a laser. The method comprises the following steps: determining a target pump source temperature corresponding to a pump source in the laser, wherein the target pump source temperature is the pump source temperature when the pump source in the laser can operate according to a preset use condition in the operation process of the laser; determining target cooling parameter information adopted during operation of the laser based on the target pump source temperature, wherein the target cooling parameter information is used for indicating circulating cooling liquid temperature and / or circulating cooling liquid flow required for cooling the laser to enable a pump source in the laser to reach the target pump source temperature; and based on the target cooling parameter information, controlling a water cooling machine associated with a laser to supply circulating cooling liquid. According to the scheme, the laser can be protected, and laser damage or power reduction caused by pump burning can be reduced.

The invention relates to the technical field of lasers, in particular to a laser heat management device and a control method thereof, the laser heat management device comprises a cooling substrate, the cooling substrate is internally provided with a micro-channel, the micro-channel comprises a main channel and a branch channel, and the main channel is used for circulating cooling water; the cooling substrate is provided with a detection control area, the detection control area is located at the joint of the branch channel and the main channel, the detection control area is provided with a phase change micro-valve and a detection assembly, the detection assembly is used for collecting temperature data, the phase change micro-valve comprises a phase change material and a flexible separation blade, and after the valve is opened, the phase change material generating phase change pushes the flexible separation blade, and the phase change micro-valve is connected with the detection assembly. The communication state of the main channel and the branch channel is controlled; the main controller is used for receiving the temperature data of all the detection control areas and controlling the valves of the corresponding detection control areas to be opened or closed according to the deviation between the temperature data and the target temperature. The temperature gradient of the laser can be reduced at least so as to ensure that the laser realizes a long-term stable working state.

The invention provides a stable control system of a solid-state spin ensemble sensor pump light source, and belongs to the field of quantum precision measurement, and the stable control system comprises a data acquisition module which is used for detecting feedback signals of the pump light source in real time, including power, driving current, temperature and a magnetic field; the control unit is used for weighting and fusing the feedback signals, optimizing weighting parameters of the feedback signals by taking the minimum output noise of the pump light source as a target, determining fusion control parameters and inputting the fusion control parameters into the self-adaptive PID controller, and the self-adaptive PID controller outputs control signals; the current driving module is used for adjusting the driving current of the pump light source according to the control signal; the invention further provides a stability control method. A closed-loop multi-stage composite feedback control system of current, temperature, light intensity and a magnetic field is established, fusion control parameters are formed through weighted fusion, and a self-adaptive PID controller outputs control signals according to the deviation between the fusion control parameters and a set value and is used for adjusting output current; and the influence of external disturbance on light source performance is effectively suppressed and compensated.

The invention relates to a self-adaptive wide-temperature-interval air-cooled fiber laser and a control method, the self-adaptive wide-temperature-interval air-cooled fiber laser comprises a shell, a first pumping module, a second pumping module, a control module, a first current driving module and a second current driving module are arranged in the shell, the first current driving module is connected with the first pumping module, and the second current driving module is connected with the second pumping module. The first current driving module is connected with the first pumping module, the second current driving module is connected with the second pumping module, a laser gain cavity is formed in the side face of the shell, a first fan and a second fan are arranged on one side of the shell, a first air cooling heat dissipation plate and a second air cooling heat dissipation plate are arranged on the other side of the shell, and the laser gain cavity is connected with the first pumping module and the second pumping module. The first fan, the second fan, the first pumping module, the second pumping module, the first current driving module and the second current driving module are all connected with the control module, and the laser gain cavity is connected with an optical fiber cladding light filter. By controlling the temperature environment, the pump light conversion rate is increased.

The invention discloses a vein-shaped composite bionic micro-channel radiator with petal-shaped fins, relates to the technical field of radiators, and solves the problems that the temperature uniformity of a radiating area of a micro-channel radiator is poor, and extra pumping work consumption is caused. A first-stage vein flow channel is arranged in the center of a micro-channel heat sink, and a hot plate is arranged at the bottom of the micro-channel heat sink; the micro-channel heat sink comprises two first heat sinks and two second heat sinks, and the second heat sinks and the first heat sinks are in mirror symmetry. A plurality of second-level vein runners, a plurality of third-level vein runners and a plurality of fin arrays are arranged in the first heat sink, and the second-level vein runners are obliquely arranged and communicate with the first-level vein runners; the plurality of third-stage vein runners are arranged among the second-stage vein runners at equal intervals; the fin array is arranged at the tail end in the second-stage vein flow channel; the fin array comprises two fins, and the fins are arc-shaped plates. The invention has the characteristics of high heat dissipation efficiency, good temperature uniformity, low flow resistance and small pressure drop, thereby ensuring efficient and stable operation of high-power micro devices.

The invention provides an all-solid-state high-power single-frequency laser based on an optical fiber-slab mixed structure, and relates to the technical field of solid lasers, and the all-solid-state high-power single-frequency laser comprises an all-solid-state continuous single-frequency seed module, an optical fiber pulse modulation module, an optical fiber pre-amplification module, a slab laser pre-amplification module, a slab laser main amplification module and a frequency multiplication module which are sequentially arranged; the lath laser pre-amplifier and the lath laser main amplifier are used for compensating thermally induced aberration generated by lath laser through multi-pass amplification designed according to the spherical aberration self-compensation principle, and then the quality of light beams is improved. In addition, a discrete mirror group is adopted to replace a complete amplifier cavity mirror, spontaneous radiation and parasitic oscillation in the working process of the amplifier are effectively restrained, nearly hundred mJ-magnitude single-frequency pulse laser with excellent light beam quality can be obtained, and application to laser radar detection or industry can be met.

The utility model discloses a laser with an expandable pumping source and portable laser processing equipment, and belongs to the technical field of lasers. Comprising at least one pumping source module, and the pumping source module comprises at least one pumping source body and a heat dissipation assembly; the heat dissipation assembly comprises a heat dissipation device and a heat dissipation base, the heat dissipation base is connected to one side, in the first direction, of the heat dissipation device, and the pumping source body is detachably arranged on the other side, in the first direction, of the heat dissipation base; according to the laser with the expandable pumping source, a corresponding number of pumping source modules can be matched according to the requirements of the laser with the expandable pumping source, so that the pumping source expansion of the laser is realized, and the corresponding pumping source body is cooled through the cooling assembly in the corresponding pumping source module, so that the cooling effect of the laser with the expandable pumping source is ensured, and the service life of the laser is prolonged. Meanwhile, due to the modular arrangement of the pumping source and the heat dissipation assembly, the reusability and adaptability of the pumping source module are improved, and the design and manufacturing cost is reduced.

Various optical systems for use in a light pulse atomic interferometer (LPAI)-based one-, two-, or three-axis accelerometer or gyroscope are disclosed. As an LPAI accelerometer or gyroscope may employ many different laser beams to implement the LPAI functionality, ways of combining these different laser beams to thereby simplify the optical systems are desired. The cooling laser beam portion of the optical system may be simplified using one or more reflective grating chips. The Raman laser beam optics may be simplified using combiners and separators. For LPAI systems sensing along three axes, various optical switching schemes may be employed, including ones that generate variable data-rates with a primary sensing axis having a higher data-rate than the secondary sensing axes. Further, by combining various laser beams in a time-multiplexed manner, the number of optical fiber tethers to a sensor head may be reduced.

The invention relates to the technical field of lasers, in particular to an air-cooled fiber laser. The air-cooled fiber laser comprises a heat dissipation structure which comprises a pumping source radiator and a fiber coiling radiator which are connected, the pumping source radiator is provided with a first air channel, the fiber coiling radiator is provided with a second air channel, and the first air channel and the second air channel are communicated with each other; the pumping source is arranged on the pumping source radiator so as to transfer heat into the pumping source radiator; the active fiber is wound on the fiber coiling radiator; a forced heat exchanger. The pumping source radiator and the coiled fiber radiator are separated, and the independently designed structure breaks through the limitation that the size is difficult to reduce due to mutual restriction of the traditional integrated radiating structure. Due to the modularized and distributed layout, each heat dissipation unit can be subjected to optimal size design according to the thermal load of the heat dissipation unit, so that the structure is compact and reasonable, the size of the laser is reduced, the overall size and weight are reduced, and portability and light weight are realized.

The utility model relates to the technical field of temperature control devices, and discloses a secondary temperature control device of a laser. The secondary temperature control device for the laser comprises an external cooling fin, a mounting shell, a temperature control circuit board, a first lens, the laser, a thermistor and aerogel, the top of the external cooling fin is fixedly connected with the mounting shell, the mounting shell is filled with the aerogel, the temperature control circuit board is arranged in the aerogel, and the first lens is arranged on the temperature control circuit board. A first lens is slidably arranged in the middle of the temperature control circuit board, a laser is mounted on the temperature control circuit board, a plurality of heat conduction pipes are arranged on the first mounting frame, and second mounting seats are fixedly connected to the front side and the rear side of the first mounting frame. A two-stage temperature control system is jointly constructed through the internal temperature control assembly and the external thermoelectric refrigerating unit and cooling fins, and it is ensured that the core area of the adjustable laser is maintained within the precise specified temperature range.

The invention relates to the technical field of high-power femtosecond laser manufacturing, and discloses a high-power industrial femtosecond laser water cooling structure and a thermal stability optimization method thereof. Comprising the steps that an adjustable flow resistance valve driven by a shape memory alloy is arranged in a cooling water channel in a machine shell water cooling plate, and a temperature sensor is embedded in a key position of the machine shell water cooling plate; a paraffin-based or metal-based phase change material is filled at the bottom of the heat dissipation chute of the shell water cooling plate; an ultrathin uniform-temperature plate is embedded in the water-cooling plate of the casing, so that heat of local hot spots, such as heat near a reflecting mirror seat, on the water-cooling plate of the casing is quickly diffused to the whole water-cooling plate; bionic guide vanes are arranged in the cooling water channel; an aerogel heat insulation layer is additionally arranged between the machine shell water cooling plate and the outer shell, the machine shell water cooling plate and the outer shell are connected through a titanium alloy connecting piece with a low expansion coefficient, and a flow channel cover plate and the machine shell water cooling plate are flexibly connected through a metal corrugated pipe.

The invention discloses an ultra-stable laser digital automatic locking system and an automatic locking method, and relates to the technical field of ultra-stable laser frequency automatic locking. The ultra-stable laser digital locking system comprises a frequency locking circuit module and a frequency locking laser module. Specifically, according to the system, temperature locking and frequency locking are integrated in one frequency locking circuit module; the temperature of an optical reference cavity of the frequency locking laser module and the working frequency of the frequency locking laser module are simultaneously locked through an FPGA and a matched temperature analog-to-digital conversion unit, a frequency locking analog-to-digital conversion unit, a signal monitoring analog-to-digital converter, a temperature control unit and a frequency control unit. Compared with a digital-analog hybrid circuit in a traditional scheme, the number of components in the system is greatly reduced, the anti-interference capability is enhanced, and the adjustment precision and the stability are obviously enhanced.

The invention belongs to the technical field of solid-state lasers, and discloses a solid-state laser circulating cooling heat dissipation system which comprises a shell, a heat conduction plate and a top plate, the heat conduction plate and the top plate are fixed in the shell, and a heat dissipation inner cavity is formed between the heat conduction plate and the top plate; a backflow cavity is formed in the heat conduction plate, a refrigeration plate and an internal circulation fan are fixed to the top of the heat conduction plate, and the refrigeration plate is used for installing a heating element of the solid laser. A water cooling groove and a plurality of air cooling holes are formed in the refrigeration plate; a water cooling groove is formed in the shell, the water cooling groove is in a snakelike extending shape, the side walls of the two ends of the water cooling groove in the length direction are open, a water cooling pipeline is embedded in the water cooling groove, and a water cooling module connected with the water cooling pipeline is fixed to the outer side of the shell; the multiple air cooling holes comprise air inlet holes and air outlet holes, the heat dissipation inner cavity, the air inlet holes, the air outlet holes and the backflow cavity are sequentially communicated, the air inlet holes are the air cooling holes which are not completely covered by the heating element, and the air outlet holes are the air cooling holes which are completely covered by the heating element.

The invention discloses a solid laser light-gathering cavity and a solid laser, and relates to the technical field of laser, the solid laser light-gathering cavity and the solid laser are provided with a light-gathering cavity main body, a heat conduction sleeve and a water cooling sleeve, and light source heat in the light-gathering cavity main body is transmitted to the water cooling sleeve through the heat conduction sleeve; water in the water-cooled jacket can cool heat and radiate and refract the light source at the same time, when the light source irradiates the condensation reflection coating and the metal reflection film in the water-cooled jacket, the light source is transmitted to the crystal rod again through the water and the heat conduction jacket, and when the light source reaches the heat conduction graphite film in the water-cooled jacket through the condensation reflection coating and the metal reflection film, the heat conduction graphite film is cooled. The heat-conducting graphite film can transmit heat to the water-cooled jacket, and meanwhile, the heat can be transmitted out through the radiating fins, so that the heat can be quickly and effectively dissipated, and the surface of the solid laser is prevented from being hot.

The invention relates to the technical field of laser line width adjustment, and discloses an excimer laser and a line width narrowing module thereof, and the line width narrowing module comprises a housing, an accommodating cavity is formed in the housing, and the housing is provided with a light through hole for light to enter the accommodating cavity; the prism is arranged in the accommodating cavity and right faces the light through hole; the optical grating is also arranged in the accommodating cavity, and the light through hole, the prism and the optical grating are sequentially arranged in the incident direction of the light; and the blowing mechanism comprises a plurality of gas flow uniformizing devices arranged on one side of the prism and one side of the grating, and the gas flow uniformizing devices conduct blowing towards the prism and the grating. Water molecules and other factors causing optical component degradation can be effectively isolated, and the service life of the optical component is prolonged; and a large amount of heat is taken away through convection heat dissipation, so that the heat dissipation of the light-passing surface is better, the phenomenon of thermal instability is more difficult to occur, and the stability of excimer laser wavelength screening is more easily ensured.

The invention discloses a laser resonant cavity capable of strengthening the heat dissipation performance of a gain medium and a heat dissipation method, and belongs to the field of laser optical-mechanical structure design. Comprising a laser sealing cavity and a gain medium welding part installed in the laser sealing cavity, and the gain medium welding part is fixed in the laser sealing cavity through a resonant cavity support. The resonant cavity support comprises a support body and a heat pipe assembly installed on the support body, the heat absorption end of the heat pipe assembly is connected with the gain medium welding part, and the heat dissipation end of the heat pipe assembly is connected with a shell of the laser sealing cavity through a heat transfer assembly. Heat generated by the gain medium welding part is sequentially transmitted to the heat transmission assembly and the shell through the heat pipe assembly, so that heat dissipation of the gain medium is completed. The problem that an existing small laser product is narrow in space and cannot dissipate heat in time is solved.

The invention provides a system and a method for automatically optimizing the power of a frequency doubling laser, and relates to the technical field of laser. The high-temperature frequency doubling furnace comprises an LBO crystal and a heating sheet, the LBO crystal is used for carrying out high-temperature frequency doubling on laser emitted by the infrared laser, and the heating sheet is used for heating the LBO crystal; the dichroic mirror is used for transmitting the frequency-doubled laser and reflecting and filtering the non-frequency-doubled laser; the spectroscope is used for dividing the frequency-doubled laser into reflected light and transmitted light; the power meter is used for measuring the power of the reflected light; and the temperature controller is used for controlling the heating plate to heat the LBO crystal according to the reflected light power fed back by the power meter so as to adjust the temperature of the LBO crystal and enable the power of the reflected light to fluctuate within a preset range. According to the method, the frequency doubling power of the laser subjected to high-temperature frequency doubling through the LBO crystal can be kept stable and is not influenced by environment temperature fluctuation.

The invention discloses an air-cooled optical fiber laser based on a modular heat dissipation mode, which comprises a heat dissipation main body base and a laser pumping module, the heat dissipation main body base is of a hollow structure, the front end and the rear end of the heat dissipation main body base are both provided with a plurality of heat dissipation fins which are arranged at intervals, the rear end of the heat dissipation main body base is provided with a heat dissipation fan, and the heat dissipation fan is connected with the laser pumping module. One side face of the heat dissipation main body base is a high heat load face, the other side face of the heat dissipation main body base is a low heat load face, the high heat load face is used for installing a laser pumping module, the low heat load face is used for installing a laser optical cavity panel, and side sealing plates are installed on the top face and the bottom face of the heat dissipation main body base respectively. According to the invention, the modular arrangement is adopted, so that a plurality of modules can be assembled conveniently, flexible combination from low power to high power is realized, and the heat dissipation performance is improved.

A nonlinear crystal flexible clamping and temperature control device comprises a clamping seat, a top face clamping block, a side face clamping block, a stud, a compression spring, a nut, a window mirror pressing ring, a wave spring, a window mirror gasket, a window mirror, a window mirror limiting block, a nonlinear crystal, silicon rubber, a thermistor and a ceramic heating piece. The flexible clamping device exerts pre-tightening force on the nonlinear crystal in the horizontal direction and the vertical direction through the compression spring, and meanwhile flexible clamping of the nonlinear crystal is achieved in a silicone rubber dispensing fixing mode. The temperature control device achieves accurate control over the temperature of the nonlinear crystal in the mode that a thermistor collects temperature signals and a ceramic heating piece heats a clamping base. The flexible clamping and temperature control device disclosed by the invention has the characteristics of performing thermal expansion compensation on the nonlinear crystal, being high in mechanical resistance and temperature control precision, uniform in crystal heat distribution and the like.

The invention relates to the technical field of high-power femtosecond laser manufacturing, and discloses a high-power industrial femtosecond laser water cooling structure and a manufacturing method thereof. Comprising the steps that any one of a variable cross-section spiral flow channel, a bionic fin flow channel or a micro-channel array is directly machined in a machine shell water-cooling plate through the five-axis linkage precision machining technology or the micro-nano machining technology, or the printer shell water-cooling plate is integrated through the metal additive manufacturing technology; a reflector base, a heat dissipation chute and a cooling water channel are integrated in the machining process of the water cooling plate of the machine shell; carrying out material and surface treatment process operation; assembling process operation is carried out, a reflecting mirror base is matched with a mortise and tenon joint structure and a machine shell water-cooling plate through high-precision positioning pins, the reflecting mirror base and the machine shell water-cooling plate are rigidly connected in a vacuum brazing or laser welding mode, and a light guide side plate and a runner cover plate are designed into standard modules; the light guide side plate and the runner cover plate are quickly assembled through magnetic attraction positioning and spring buckles.

The utility model provides a high-power heat sink for laser devices, and relates to the technical field of heat sinks. It includes a hot-end phase-change connector, a cold-end connector, and an intermediate flexible graphite belt, wherein the intermediate flexible graphite belt is assembled and fixed between the hot-end phase-change connector and the cold-end connector through a fixing column; the hot-end connector includes a phase-change cover plate, a supporting bottom plate, and a thermal interface material, wherein the phase-change cover plate is filled with a phase-change material in the middle cavity; the hot-end phase-change connector is connected to the heat source of the laser device, and the thermal interface material is filled therebetween; the cold-end connector includes a metal cover plate, a supporting bottom plate, and a thermal interface material, which is connected to the laser cavity housing, and the outer appearance mainly has heat dissipation fins.

A portable air-cooled fiber laser device disclosed by the present invention comprises a box body, a laser pumping source, a fiber output assembly, a power supply assembly, a heat dissipation engine and a control circuit are integrated in the box body, the power supply assembly adopts a drawable structure, a replaceable battery is arranged in the power supply assembly, and energy supply without an external power supply is realized. The heat dissipation engine is arranged in a sandwich type structure and is composed of a heat dissipation fin set and heat pipes embedded in the heat dissipation fin set, a transverse ventilation heat dissipation channel is formed through a heat dissipation fan, and efficient heat management is achieved. Connection with a mobile terminal or computer equipment in a wired or wireless mode is supported, and remote control over the operation state of the laser is achieved. The device is compact in structure, efficient in heat dissipation and convenient to carry, has good heat dissipation performance, independent power supply capacity and environmental adaptability, is suitable for application scenes such as multi-scene field operation and emergency use, and has good practicability and popularization value.

The invention relates to the technical field of laser diodes, and provides a laser diode array side unidirectional pumping cavity comprising a pumping source used for emitting pumping light; the diffuse reflection cavity is arranged on one side of the pumping source, the inner side wall of the diffuse reflection cavity comprises a curved surface part and a straight inclined surface part, a gap is formed in the center line of the straight inclined surface part, and the gap serves as an incident port of the pumping light; the incident port is opposite to the light-emitting surface of the pumping source; the cooling pipe is arranged on the side, away from the pumping source, of the diffuse reflection cavity; the laser gain medium and the cooling pipe are coaxially arranged, the laser gain medium is located on the inner side of the cooling pipe, and the space between the laser gain medium and the cooling pipe is filled with cooling liquid. Through the arrangement of the curved surface part and the straight inclined surface part of the diffuse reflection cavity and the arrangement of the cooling pipe and the laser gain medium on the side, far away from the pumping source, of the diffuse reflection cavity, uniformization can be carried out on one-way pumping light entering the laser gain medium, and one-way high-power and high-uniformity pumping of the laser gain medium is achieved.

The utility model discloses a cooling structure and a laser, and relates to the technical field of lasers, the cooling structure is used for a power supply module, and the cooling structure comprises a plurality of substrates and cooling pipes; each substrate is provided with at least one heat conduction area, and the heat conduction areas can receive heat generated by a power module. According to the technical scheme, the multiple substrates are arranged, at least one heat conduction area is arranged on each substrate, the purpose of dispersing the whole substrate into the multiple heat conduction areas is achieved, the heat conduction areas absorb heat generated by the power module, compared with a traditional whole-block arrangement mode, the heat conduction efficiency is improved, and the heat conduction efficiency is improved. According to the cooling structure, the plurality of substrates can be selectively arranged on the power supply module needing heat dissipation, so that unnecessary space occupation is reduced, the size and the weight are further reduced to a certain extent, and the cooling structure has a light-weight use effect.

Consolidated Master Oscillator Power Amplifier (MOPA) laser modules and method of fabrication thereof. A MOPA comprises a prefabricated chassis, comprising a plurality of surfaces, a master oscillator laser (MO), enduringly affixed to at least one first surface out of the plurality of surfaces, a power amplifier (PA), enduringly affixed to at least one second surface out of the plurality of surfaces, wherein a spatial relationship between the at least one first surface and the at least one second surface determines an alignment between the MO and the PA, and a beam transfer system (BTS), enduringly affixed to the prefabricated chassis, the BTS comprising a plurality of optical elements for transferring light outputted from the MO to the PA for amplification.

The invention provides a detection device for an air jet loom, and relates to the technical field of woven fabric detection, the detection device comprises a case and a laser generator, a detection assembly is installed on the case, the detection assembly comprises a first laser receiver and a second laser receiver, a suction assembly is installed on the case, the suction assembly comprises a partition plate and a suction port, and the partition plate and the suction port are arranged on the case. The detection device comprises a machine box, a partition plate is installed on the machine box, a lifting assembly is installed on the machine box, the lifting assembly comprises a motor and a lead screw, a filtering assembly is installed on the partition plate, and the filtering assembly comprises an air bellow and a filtering net. The cloth detection structure is prevented from being interfered by chippings, impurities and the like, the reliability of a detection result is guaranteed, chipping and impurity cleaning work is facilitated, the chipping and impurity absorption effect is guaranteed, the detection work is not affected in the cleaning process, use is more convenient, and the cloth quality detection device is suitable for cloth quality detection of the air jet loom.

The present application discloses embodiments of a laser beam dump assembly. In one embodiment, the laser beam dump assembly includes a beam dump housing having a housing body with a passage formed therein, wherein the passage is sized to allow an incident laser beam to propagate therethrough into an interior volume formed in the housing body. The laser beam dump assembly further includes a beam scattering member having curvilinear scattering surface configured to scatter or reflect a first portion of the incident laser beam and allow a second portion of the incident laser beam to be absorbed by the scattering member as thermal energy. A heat sink is coupled to the beam dump housing in thermal communication with the beam scattering member, wherein the heat sink is configured to absorb and dissipate the thermal energy from the beam scattering member.

The invention discloses a laser cooling device which comprises a circulating cooling device, a locking device is arranged at the bottom of the circulating cooling device, a laser head is arranged in the circulating cooling device, the circulating cooling device comprises a first cooling plate, a second cooling plate is arranged on one side of the first cooling plate, and the first cooling plate comprises cooling fins. S-shaped circulating cold and hot pipes are arranged on the inner sides of the heat dissipation fins in a penetrating mode, water inlets are formed in one corners of the upper ends of the first cooling plate and the second cooling plate, water outlets are formed in the opposite corners of the inclined sides of the water inlets, and a plurality of clamping devices are arranged at the upper ends of the first cooling plate and the second cooling plate. The product has the advantages that the design of the locking device and the clamping device provides higher stability, the cooling effect reduction or equipment damage caused by the looseness of the cooling system is avoided, the clamping device ensures the accurate alignment of the cooling plates through the positioning holes, the guide columns, the locking bolts and other components, and the product quality is improved. And the anti-vibration capability is enhanced.

The invention discloses a laser heat dissipation system and method and an air-cooled fiber laser, and relates to the technical field of lasers, the disclosed laser heat dissipation system comprises a data acquisition module, a main control module, a fan driving module and a heat dissipation fan, the main control module is electrically connected with the data acquisition module and the fan driving module, and the fan driving module is electrically connected with the heat dissipation fan. The fan driving module is electrically connected with the cooling fan; the data acquisition module is used for acquiring the output power, the input current, the input voltage and the temperature value of the laser; the main control module is used for determining a reference fan control signal according to the output power and correcting the reference fan control signal according to the temperature value and / or an efficiency value calculated through the output power, the input voltage and the input current to obtain a target fan control signal; and the fan driving module is used for controlling the rotating speed of the cooling fan according to the target fan control signal. The heat dissipation efficiency of the laser heat dissipation system can be improved.