111 results about "Laser pumping" patented technology

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 discloses an ultrafast terahertz response magnetic field measurement method and system based on a linear magneto-optical conversion material, and the method comprises the steps: preparing a linear magneto-optical conversion heterojunction film which comprises at least one signal generation layer with a linear magneto-optical conversion characteristic and at least one signal emission layer with a strong spin-orbit coupling effect; placing the heterojunction thin film at the position of a magnetic field to be measured, and irradiating the heterojunction thin film by using femtosecond laser pumping pulse so as to enable the heterojunction thin film to radiate a terahertz signal; through the terahertz vector detection and rotation detection system, the positive and negative and the magnitude of terahertz signals radiated by the heterojunction film in three groups of orthogonal directions are detected, and the magnetic field direction and the magnitude of the magnetic field position to be detected are calculated based on the three groups of terahertz signals. The sensor has the advantages of being high in sensitivity, high in response speed, non-contact and the like, can achieve rapid detection of various vector magnetic fields such as stable, periodic modulation and sub-picosecond transient pulse, and has hundred-nanometer-scale spatial resolution capacity.

The invention discloses a femtosecond ultrasonic wafer metal film multi-layer measurement system, method and device, and the system comprises a sample platform which is used for flatly placing a wafer sample to be measured; the main light path is used for generating laser and separating the laser into pumping laser and detection laser; the pumping laser path and the detection laser path are respectively used for guiding the pumping laser and the detection laser to be successively projected onto the surface of the wafer sample; the receiving unit is used for processing a reflected light beam returned from the surface of the wafer sample and comprises a pump light beam eliminator to isolate residual reflected light of the pump laser in the reflected light beam; the detection laser detection assembly is used for collecting the reflected detection laser, processing the reflected detection laser and converting an optical signal into an electric signal to obtain reflected signal intensity change data of the reflected detection laser; and the controller is used for acquiring the flight time of the detection laser based on the reflected signal intensity change data so as to acquire the thickness of the wafer metal film. And the pump light beam eliminator reduces pump light leakage and scattering, and the SNR (Signal to Noise Ratio) is improved.

The invention belongs to the technical field of nonlinear optical crystals, and particularly relates to a zeolite-like structure nitrogen oxide silicate nonlinear optical crystal and a preparation method and application thereof, the chemical general formula of the crystal is Ba3Si3N5OCl, the crystal belongs to a hexagonal system, the cell parameters of the crystal are as follows: a is 9.5147 (6), c is 5.5002 (4), V is 431.22 (6) 3, Z is 2, the space group is P-62c, and the crystal has a non-centrosymmetric structure. The Ba3Si3N5OCl crystal provided by the invention is used as a novel zeolite-like structure nitrogen oxide silicate, successfully integrates nonlinear optical activity and phase matching capability, can generate frequency doubling response which is about 0.2 times of KDP (potassium dihydrogen phosphate) under 1064 nm laser pumping, and can realize phase matching, so that the Ba3Si3N5OCl crystal becomes a nonlinear optical material with practical device application potential.

This invention discloses a 2.3 μm fiber laser based on 980 nm laser pumping, relating to the field of mid-infrared fiber laser technology. This fiber laser utilizes fluorotellurate glass fiber co-doped with thulium and erbium ions as the gain medium. It absorbs the 980 nm pump light energy by introducing erbium ion doping, and then achieves Tm through the energy transfer process between erbium and thulium ions. 3+ of 3 H4- 3 The population inversion of the H5 energy level ultimately yields laser output in the 2.3 μm band. This invention utilizes a high-power 980 nm laser as the pump source and a thulium-erbium co-doped fluorotellurate glass fiber prepared by the rod-tube method as the gain medium. By writing fiber gratings with appropriate reflectivity at both ends of the fiber, a resonant cavity with a reflection wavelength of 2.3 μm is constructed, enabling the development of a high-power 2.3 μm laser that can operate stably for a long time.

The invention belongs to the technical field of semiconductor laser packaging, and particularly relates to a rapid detection method and detection device for deformation of a pumping source shell of a semiconductor laser, and the method comprises the steps: clamping the pumping source shell through an L-shaped positioning block; identifying the contour of the shell by using a visual mechanism and setting a detection point; the shell is sequentially driven to complete contact type deformation data acquisition of the X-axis frame, the Y-axis frame and the Z-axis internal step; performing comprehensive analysis and qualification judgment on the multi-axis data by the touch control mechanism; and finally displaying a result and alarming when the result is abnormal. According to the invention, full-automatic and multi-dimensional deformation rapid detection is realized, visual guidance is combined with a replaceable positioning block, and the device is suitable for shells of different models. And through three-axis high-precision contact type measurement, data can be quantitatively evaluated to form and position errors such as flatness and step height. According to the invention, data processing and alarming are integrated, the quality and the equipment state are monitored in real time, and the reliability is improved.

The utility model relates to the technical field of laser equipment, in particular to a laser assembly, a solid-state laser and laser processing equipment, and the laser assembly comprises a birefringent crystal which is used for emitting solid-state laser under the pumping effect, and the solid-state laser comprises two pieces of orthogonal polarized light with different wavelengths; the Q switch is arranged at one end of the birefringent crystal and is used for controlling the output of the solid-state laser; and the dual-wavelength output coupler is arranged at one end, deviating from the birefringent crystal, of the Q switch and is used for coupling and outputting two orthogonal polarized lights in the solid-state laser. Through the mode, the energy loss in the laser pumping cavity can be reduced, so that the laser threshold value is reduced, and the laser output power is improved.

The invention discloses a defect detection method based on light wavefront. The defect detection method comprises the following steps: arranging an object to be detected on a base; providing a laser device which comprises a laser pump and a laser light source and emits a first laser beam towards the detection part of the object to be detected; providing a first light wavefront sensor, wherein the first light wavefront sensor receives first reflected light of the first laser beam reflected by the detection part of the to-be-detected object to generate a first reflected light signal, or receives first penetrating light of the first laser beam penetrating through the detection part of the to-be-detected object to generate a first penetrating light signal; providing a waveform generator which is electrically connected with the first optical wavefront sensor, and receiving the first reflected light signal or the first penetrating light signal by the waveform generator to generate a first detection oscillogram; the invention further provides a defect detection system based on the light wavefront.

The utility model provides a chromium-doped gain medium solid laser based on thulium solid laser pumping. Comprising a pumping source, a pumping light coupling device, a first laser lens, a thulium-doped laser gain medium, a first laser coupling output lens, a light coupling device, a second laser lens, a chromium-doped laser gain medium and a second laser coupling output lens which are arranged in sequence, the thulium-doped laser gain medium is a thulium-doped solid gain medium; the chromium-doped laser gain medium is a chromium-doped solid gain medium; a first oscillation cavity of laser is constructed between the first laser lens and the first laser coupling output lens; and a second oscillation cavity of the laser is constructed between the second laser lens and the second laser coupling output lens, and is used for wavelength selection to realize the output of the laser at the wave band of 1.9-3 microns. According to the utility model, the thulium-doped solid laser is used as a pumping source for pumping the chromium-doped crystal, so that the problem that the chromium-doped crystal is low in pumping efficiency and output power under other pumping sources such as an optical fiber laser is solved.

The invention belongs to the technical field of semiconductor laser pumping solid lasers, and discloses a semiconductor side pumping solid laser module based on a multi-cavity reflection light-gathering cavity, which comprises a multi-cavity reflection light-gathering cavity (2), an elliptical cavity and a semicircular cavity which are formed in the multi-cavity reflection light-gathering cavity (2), and the inner walls of the elliptical cavity and the semicircular cavity are reflecting surfaces. An LD bar (1) and a thin rod type laser working medium (3) are arranged in the multi-cavity reflection condensation cavity (2), pump light emitted by a luminous point of the LD bar (1) is reflected by the inner wall and then converged at the axis position of the thin rod type laser working medium (3), residual pump light absorbed by the thin rod type laser working medium (3) is reflected back to the thin rod type laser working medium (3) again, and the residual pump light is converged at the axis position of the thin rod type laser working medium (3). And residual pumping light energy is absorbed again, so that high-efficiency pumping is realized. According to the invention, the utilization efficiency of pump light energy is improved, and under the same laser output power, the volume, weight and power consumption indexes of the pumping part of the laser are reduced.

The invention provides a multi-laser-beam 3D printing head for additive manufacturing and a 3D printing device, the multi-laser-beam 3D printing head for additive manufacturing comprises a shell, the shell is provided with a plurality of first parts, the multiple first parts annularly surround the center axis of the shell, a connecting part is arranged between every two adjacent first parts, each first part is provided with a concave area and a non-concave plane, and the concave area and the non-concave plane are arranged in parallel; for each first part, the distance between the concave area of the first part and the central axis is smaller than the distance between the non-concave plane of the first part and the central axis; the plurality of laser pumping sources and the plurality of first parts are arranged in a one-to-one correspondence manner, each laser pumping source is arranged in the corresponding first part, each laser pumping source comprises a plurality of chips and an optical assembly, and the plurality of chips and the optical assemblies of the laser pumping sources are arranged in the concave areas of the corresponding first parts; according to the printing head, the chip and the optical assembly of the laser pumping source can be protected, the overall structure and laser output of the printing head can be more stable, and optical path loss can be effectively reduced.

The application provides a repetition frequency tuning system and a frequency stabilization method based on a microcavity soliton optical frequency comb, which comprises: a pump laser generation module, which is suitable for providing continuous pump laser; a pump laser feedback module, which is suitable for monitoring the pump laser in real time, so that after the microcavity soliton optical frequency comb is generated, a first error signal is transmitted to the pump laser generation module to lock the frequency of the pump laser; a whispering gallery mode microcavity, which is suitable for providing a reaction space for generating the microcavity soliton optical frequency comb based on the pump laser generated by the pump laser generation module; an auxiliary laser generation module, which is suitable for providing auxiliary laser for inhibiting the thermal effect in the whispering gallery mode microcavity and transmitting the auxiliary laser to the whispering gallery mode microcavity, so that the generation of the auxiliary microcavity soliton optical frequency comb and the adjustment of the local dispersion in the whispering gallery mode microcavity are realized; and an auxiliary laser feedback module, which is suitable for monitoring the repetition frequency in real time and transmitting a second error signal to the auxiliary laser generation module, so that the tuning and locking of the repetition frequency are realized.

The invention discloses a terahertz time-domain spectral imaging method based on a femtosecond laser pumping-detection principle. The terahertz time-domain spectral imaging method comprises the following steps: acquiring a terahertz wave beam signal of a to-be-detected sample through a terahertz time-domain spectral system; gaussian fitting is carried out on the terahertz wave beam signal by using the terahertz wave beam model; and performing imaging reconstruction on the Gaussian fitting result of the terahertz wave beam signal by adopting a maximum likelihood and maximum expected value strategy to obtain an imaging reconstruction result. According to the terahertz time-domain spectral imaging method based on the femtosecond laser pumping-detection principle, the reconstruction technology combining the Gaussian beam model and the MLEM algorithm is introduced, the wave path calculation error is effectively reduced, the scanning imaging quality is improved, and high-resolution two-dimensional terahertz imaging is achieved; according to the method, the structural characteristics of fiber distribution, agglomeration, interruption and the like in the cigarette can be clearly presented, the defects of image blurring and multiple artifacts of a traditional back projection algorithm are overcome, and an efficient and reliable solution is provided for nondestructive testing and quality evaluation of the internal structure of a cigarette product.

In a laser-pumped plasma light source (100) having a gas-filled chamber (1), the device for plasma ignition is a solid-state laser system (7) which generates two pulsed laser beams (8, 9) focused into the chamber (1): a first beam (8) is generated in free-running mode, a second beam (9) is generated in Q-switched mode. The solid-state laser system (7) comprises a single active element (10), a radiation source (11) for pumping the active element (10) and an optical resonator (12, 13) providing a plurality of passages of the laser beams through the active element (10). One optical resonator (13) is equipped with a Q-switch (14) mounted on the path of the second beam (9) so that the Q-switch overlaps only a part (15b) of the cross section of the laser beam.

The invention discloses a strong pumping bilateral resonance modulation-demodulation magnetic sensitivity enhancement method of a quantum magnetic compass. The method comprises the following steps: constructing a quantum magnetic compass platform comprising a sensing unit and external optical and microelectronic devices; quantum state enhanced reading containing magnetic vector information is realized by using a pumping enhancement mode; a standard diamond is used, the thermal conductivity and the light transmission of the diamond are utilized, the initialization of a quantum state is realized by using near-saturation external pump light, the line width is narrowed, and the magnetic measurement sensitivity is improved; noise in the environment is filtered out in a modulation and demodulation mode, and high-robustness extraction of quantum information is achieved. By enhancing the laser pumping power, the emission speed of the solid-state quantum color center ensemble fluorescence photons is increased, the full width at half maximum of a magnetic resonance curve is compressed, and the measuring capacity of the solid-state quantum color center to a magnetic field is improved; accurate measurement of external magnetic field signals through the solid quantum color center in the diamond is realized.

The present application relates to a kind of strong turbulent ammonia combustion flame internal structure and temperature field measurement system, a small amount of oxygen-containing fuel is added in strong turbulent ammonia combustion field to generate CH2O mark preheating zone, a Nd:YAG pumping laser is used to emit 355nm and 532nm laser simultaneously, wherein 355nm laser is used to excite CH2O and Rayleigh scattering signal;303nm laser is obtained after 532nm laser pumps dye laser to be frequency doubled, for exciting NH;CH2O fluorescence signal, Rayleigh scattering signal and NH fluorescence signal are detected by using three ICCD cameras distribution.By the present application, it can be realized to use a set of Nd:YAG, dye laser and three ICCD cameras, the synchronous measurement of ammonia combustion flame preheating zone, reaction zone and temperature field.

The invention relates to a non-collinear near-field ultrafast pumping-detection integrated circuit local thermalization measuring device and method. The invention relates to the technical field of ultrafast optical measurement and integrated circuit thermal management, and is used for realizing high temporal-spatial resolution characterization of a local ultrafast thermalization process of an integrated circuit material and device under a nanoscale. According to the invention, a femtosecond laser pumping-detection technology, near-field optical probe detection and a precise time delay and space positioning control system are comprehensively utilized, and the device can be used for researching an energy relaxation dynamic process under electron-phonon coupling, interface heat transport and extreme excitation conditions.

This invention proposes a semiconductor laser side-pumping module based on power feedback control, comprising a semiconductor laser array, module optical elements, a status monitoring module, a current adjustment module, and a data storage, processing, and communication module. It employs multi-wavelength combined pumping to make the pump light spectrum wider than the laser crystal absorption peak, ensuring good matching with the laser crystal absorption peak even when the semiconductor laser array degrades. Fluorescence intensity monitoring is used, and the semiconductor laser array current is dynamically adjusted based on the monitored intensity and other module status monitoring data to maintain stable fluorescence intensity even when the semiconductor laser array conversion efficiency decreases. Simultaneously, various status monitoring data of the semiconductor laser pumping module are stored and compared with the semiconductor laser array lifetime curve to obtain remaining lifetime prediction data, which is then transmitted to the user terminal. This invention solves the technical problem of insufficient long-term stability of traditional pumping modules.

The application discloses a tunable laser based on a band gap gradient semiconductor nanowire, a bottom layer is a Bragg reflector, a middle layer is an air layer supported by a support column, and a top layer is a silver-coated reflective layer; the gradient nanowire is placed on the bottom layer Bragg reflector; the bottom layer Bragg reflector and the top layer silver-coated reflective layer serve as two emitting mirrors of an external Fabry-Perot cavity, and the middle layer air layer serves as a resonant cavity. The application also provides a spectrum modulation system based on the tunable laser, utilizes high optical gain of the semiconductor nanowire, and realizes tunable laser emission when an external laser pump is applied to different positions of the semiconductor nanowire in the axial direction through proper design of the external Fabry-Perot cavity.

The invention belongs to the technical field of solid laser pumping, and discloses a solid laser timing pumping device based on a mechanical delay device, which comprises a pumping source, a total reflective mirror, a crystal disc, an output mirror and a double-color filter which are sequentially arranged along the direction of a light path, a pumping light beam emitted by the pumping source sequentially passes through the total reflective mirror, the crystal disc and the output mirror, and the output laser passes through the double-color filter to realize the separation of the pumping light and the laser beam; the mechanical delay device drives the crystal disc to rotate intermittently, and when the pumping source emits light beams to irradiate the crystal disc in the resonant cavity, the crystal disc is in a stop state; after the irradiation of the crystal disc in the resonant cavity in the period is finished, the crystal disc enters a rotating state; and before the pumping source enters the next period of irradiation, the crystal disc in the resonant cavity is changed to the next pumping part, so that the periodic timing pumping of the solid laser is realized. The heat dissipation efficiency of the disc type solid laser is improved, and the influence of the crystal heat effect on the laser is reduced.

The invention provides a pulse laser pumping cesium atom magnetometer and a measuring method. The magnetometer comprises a physical probe part and a circuit part. The physical probe comprises a VCSEL laser, an optical element, a cesium atom absorption gas chamber, a radio frequency coil and a photoelectric detector; the circuit part comprises a photoelectric conversion circuit, a differential amplification circuit and a radio frequency excitation circuit. The method comprises the following steps: carrying out optical pumping on cesium atoms by adopting pulse laser, inducing magnetic resonance through a radio frequency field, detecting precession signals by utilizing a time division multiplexing mechanism, forming self-oscillation through differential amplification and feedback, and calculating the external magnetic field intensity through oscillation frequency. The invention further provides a scheme for adaptively switching between a high-sensitivity working mode and a wide-bandwidth working mode based on the change degree of a magnetic field measurement value and a scheme for accumulatively detecting a magnetic field for mobile platform application. The invention has the characteristics of high sensitivity, large bandwidth, small volume and low power consumption, and is suitable for geomagnetic field and magnetic field measurement in a wider range.

The application belongs to the field of Raman laser, and particularly relates to a red-green-blue three primary color large pulse energy Raman laser, which comprises a pumping laser, a plano-convex lens A, a Raman cell and a plano-convex lens B, the pumping laser is a Nd:YAG pulse solid laser, a mixed gas of D2 and inert gas in the Raman cell is pumped by a doubled 532nm pulse laser, three times of focusing are carried out in the Raman cell, and finally first order Stokes red laser, first order anti-Stokes blue Raman laser and green pumping laser are simultaneously output, the pulse energy reaches above 140mJ, 50mJ and 140mJ respectively, and the peak power reaches 10MW level. The application has the advantages of simple structure, fast debugging, low cost and high peak power of output laser, and provides a Raman laser for generating red-green-blue three primary color laser with high cost performance and large pulse energy.

A Bismuth-doped fiber-optic amplifier (BDFA) system in which a Bismuth-doped optical fiber (BDF) is pumped by a fiber-laser pump (rather than by a semiconductor pump). Because higher-power fiber-laser pumps permit over-pumping of the BDF, there are benefits to the fiber-laser-pumped BDFA that cannot be realized with inherently lower-power semiconductor pumps.

A laser-sustained plasma (LSP) broadband light source is disclosed. This light source may include a gas containment structure. This light source may also include a plurality of jet nozzles. These jet nozzles are configured to generate supersonic gas jets and direct the supersonic gas jets to collide inside the gas containment structure, thereby forming a local high-pressure region at the collision site. This light source may further include a primary laser pump source. This primary laser pump source is configured to irradiate the primary pump beam onto the local high-pressure region formed at the collision site. This light source may include a pulsed auxiliary laser source. This pulsed auxiliary laser source is configured to irradiate the local high-pressure region at the collision site with a pulsed auxiliary beam. This light source may include a focusing element configured to focus broadband light emitted from the plasma.

The invention provides a system for widening a bismuth-doped optical fiber fluorescence range based on short wave pumping, the system comprises a laser pumping source, a bismuth-doped optical fiber, a spectrometer, a wavelength division multiplexer and an optical isolator, the laser pumping source is 900-1000nm, and a bismuth-doped optical fiber core takes quartz-based glass doped with a bismuth element and one or more elements of phosphorus, germanium and aluminum as a main body. By optimizing optical fiber spectrum excitation conditions, under high-energy short-wavelength pumping, various bismuth active centers are effectively excited, 1000-1800 nm ultra-wideband near-infrared fluorescence output is achieved, and the 6dB bandwidth can reach 150 nm or above. The method has wide application prospects in the fields of ultra-wideband optical fiber amplifiers, wideband tunable lasers, super-continuum spectrum light sources and the like.

The application discloses a kind of optical element surface thermosensitive defect nondestructive testing system and method, wherein optical element surface thermosensitive defect nondestructive testing system includes optical coherence tomography device, laser pumping device and signal processing and control module.The above technical scheme is used to a kind of optical element surface thermosensitive defect nondestructive testing system and method, utilizes laser pumping cooperation optical coherence tomography, realizes the rapid detection to optical element surface thermosensitive defect, possesses fast, nondestructive, micron level high-resolution structure imaging, nanometer level high-precision phase detection and so on Advantage, break through the technical bottleneck of traditional thermosensitive defect detection means " detection precision and detection efficiency cannot be obtained simultaneously ", simultaneously can gather the three-dimensional structure image and phase information of optical element, so as to obtain the accurate three-dimensional position information of thermosensitive defect in optical element including depth position information.

The invention discloses a laser pumping dispensing device and a dispensing control method, and relates to the technical field of laser pumping packaging, the laser pumping dispensing device is used for coating glue on a pumping base, the laser pumping dispensing device comprises a chip attaching mechanism, the chip attaching mechanism comprises a machine table, a laser pump and a dispensing control device, a feeding station and a laminating station are formed on the base; the glue spraying part is movably mounted on the machine table; the upper range finder is used for measuring Z-axis coordinate information of the material; the fitting positioning camera is used for acquiring second horizontal position information of a fitting area on the pump base at the fitting station; the moving module is used for driving the glue spraying part, the upper distance measuring instrument and the laminating positioning camera to move relative to the machine table; the controller is electrically connected with the glue spraying part, the moving module, the upper distance measuring instrument and the laminating positioning camera; according to the technical scheme provided by the invention, the gluing precision and uniformity are ensured, and the gluing efficiency is also ensured.

The utility model provides a laser pumping drive circuit, and relates to the technical field of drive circuits. The output end of a voltage-controlled constant current source unit is connected with a pumping laser; the output end of the dual-mode current setting unit is connected with the reference input end of the voltage-controlled constant current source unit; the output end of the temperature control driving unit is connected with the thermoelectric refrigerating unit, and the feedback input end of the temperature control driving unit is used for receiving a temperature sensing signal; the analog input end of the multi-channel signal acquisition unit is respectively connected with a current sampling point of the voltage-controlled constant current source unit, the output end of the monitoring photodiode and a temperature sensing signal node; the positive power supply output end and the negative power supply output end of the power supply management unit are respectively connected with the power supply ends of the voltage-controlled constant current source unit and the multi-channel signal acquisition unit, and the enabling control end of the power supply management unit is connected with an external interface and is used for receiving a digital enabling signal and guaranteeing the temperature stability and reliability of the laser pumping drive circuit.

The utility model relates to the technical field of air-cooled radiators, and discloses an air-cooled radiator convenient to install, which comprises a protective plate, the inner wall of the protective plate is fixedly connected with a radiator body, the top end of the protective plate is detachably provided with a connecting plate, the top end of the radiator body is detachably provided with a laser pumping source, and the laser pumping source is connected with the connecting plate. A convenient mounting mechanism is arranged at the top end of the protection plate; the convenient-to-install mechanism comprises a supporting plate, the inner wall of the supporting plate is fixedly connected with a triangular plate, the inner wall of the supporting plate is elastically connected with a contact ball through a connecting spring, the outer wall of the laser pumping source is fixedly connected with a fixing block, and the inner wall of the bottom end of the laser pumping source is provided with a heat dissipation mechanism. According to the utility model, when the air-cooled radiator and the laser pumping source thereof need to be installed, the laser pumping source is inserted into the supporting plate, and the purpose of preliminary positioning is achieved through the contact ball, so that pre-positioning and subsequent taking-out are more convenient.

The application relates to the technical field of laser amplification, and discloses a high-efficiency dye laser amplification method, which comprises the following steps: using a high-repetition-rate ultrafast laser as a pumping source, expanding and collimating the pumping light through a telescope system; adjusting the dye concentration in real time through a microfluidic system, and monitoring the dye concentration in real time through a fluorescence detection system; performing frequency doubling conversion through a photonic crystal frequency-doubling crystal; collecting pumping light intensity, dye concentration and output power data, and performing standardization processing; performing data analysis and system parameter optimization through a deep learning model; and monitoring and adjusting the temperature distribution of the laser amplifier in real time through an intelligent thermal management system. Through integration of a high-repetition-rate ultrafast laser pumping source and a telescope system, uniform expansion and collimation of the light beam are realized, and the efficiency and stability of laser amplification are significantly improved. Compared with the prior art, the application effectively reduces the influence of light spot unevenness on the amplification effect, and ensures the quality and consistency of the output light beam.