314 results about "Beam transmission" patented technology

The invention relates to the field of medical equipment, and provides a compact multi-chamber proton treatment system based on a shared beam line, and the system comprises a fixed beam transmission line which is used for guiding the movement direction of a proton beam into a vertical direction; the rotating beam transmission line is used for guiding the movement direction of the proton beam into the horizontal direction; one end of the fixed beam transmission line is connected with the proton cyclotron, the other end of the fixed beam transmission line is connected with one end of the rotary beam transmission line, and the other end of the rotary beam transmission line is in butt joint with a plurality of treatment rooms; the rotating beam transmission line rotates around a central axis extending in the vertical direction. According to the invention, the proton beam can be safely, efficiently and accurately transmitted to each treatment room, and a fixed beam transmission system and a rotating rack do not need to be independently arranged for each treatment room, so that the beam control assembly and the system occupied area of the multi-room particle treatment device are minimized, and the number of treated patients can be remarkably increased.

The utility model relates to the technical field of electron beam transmission, in particular to a magnet system. Comprising a first shaping unit and a second shaping unit, and the first shaping unit comprises first quadrupole iron tightly attached to an outlet of the accelerating tube and first octupole iron arranged at the focus position of the first quadrupole iron; the second shaping unit comprises second quadrupole iron and second octupole iron, the second quadrupole iron and the first octupole iron meet a first preset distance, the second octupole iron is arranged at the focus position of the second quadrupole iron, and the second shaping unit and the radiation field area meet a second preset distance; the inner diameter of the first octupole iron and the inner diameter of the second octupole iron are both larger than or equal to the maximum size of an electron beam group. Therefore, the quadrupole iron and the octupole iron are utilized to form the shaping unit which is homogenized in one direction, so that the problems that in the prior art, in the electron beam transmission process, a large amount of dose is lost, the size of a radiation field is limited, and the radiation field cannot be adjusted at will are solved; therefore, the electron beam bunch generated by the linear accelerator can be expanded and homogenized in a short distance.

The invention provides an integrated measurement device, a beam parameter quality control method and related equipment, relates to the technical field of particle radiotherapy, and is used for rapidly measuring beam parameters of pencil beam scanning points in arc proton therapy in real time. Comprising a plurality of measurement units which are arranged at intervals along a beam transmission direction, the plurality of measurement units are periodically and repeatedly arranged to form a two-dimensional orthogonal sampling grid, and time-space distribution data of a beam cross section are synchronously acquired through one-time beam output; the analysis module is used for processing the beam parameters output by the signal acquisition and processing module in real time, and the beam parameters comprise the scanning point position, the beam spot size, the charge quantity and the range; beam parameters of a pencil beam scanning point can be rapidly measured in real time, and accurate and efficient measurement is ensured; according to the matched beam parameter quality control method, the accuracy and reliability of arc proton treatment are improved through operations such as multi-angle measurement, parameter correction, quality control interval optimization and real-time dynamic adjustment.

The invention belongs to the technical field of photoelectric countermeasure, and particularly relates to a CMOS detector damage system based on time-domain composite pulse laser, which comprises a time-domain composite pulse laser generation module, a light beam transmission and focusing module, a target damage monitoring module, a parameter optimization control module and a detector to be damaged. The time domain composite pulse laser generating module comprises a short pulse laser, a long pulse laser, a pulse synchronous controller, a power adjusting unit, a power supply module and a cooling device, and the power adjusting unit is electrically connected with the short pulse laser and the long pulse laser; and the power supply module is electrically connected with the long pulse laser, the short pulse laser and the cooling device. According to the method, energy loss generated by plasmas in a traditional laser damage method is avoided, the damage efficiency is remarkably improved, efficient transmission and concentration of energy in the multilayer structure are achieved through the synergistic effect of long pulses and short pulses, all layers of materials synchronously lose efficacy in a short time, and the damage consistency of the whole multilayer structure is ensured.

The invention relates to the technical field of laser micropore processing, and discloses a device for processing a blade film hole by femtosecond laser, which sequentially comprises an infrared femtosecond laser for emitting laser, a blade hole forming device for guiding light and processing laser beams and a blade fixing device for fixing a blade to be processed along a beam transmission path, the blade hole forming device comprises a laser incidence port, a compact scanning galvanometer system for adjusting a laser scanning path, a rotating assembly capable of rotating around an optical axis and used for adjusting the emitting angle of a laser beam, a focusing system for adjusting laser focusing, a light guide assembly for adjusting light beam incidence and a light guide reflection assembly. The lower end of the scanning galvanometer system is connected with the upper end of the rotating assembly, the upper end of the focusing system is connected with the lower end of the rotating assembly, the lower end of the focusing system is connected with the upper end of the light guide assembly, and the lower end of the light guide assembly is connected with the light guide reflection assembly. And the infrared femtosecond laser, the compact scanning galvanometer system and the focusing system are all controlled by the control system. According to the system, blade film hole machining in a complex track can be achieved.

The invention discloses a non-interception type detector for measuring the beam position and the cross section of proton / heavy ion radiotherapy equipment, and belongs to the technical field of nuclear medicine and electronics crossing. Secondary particles (electrons or ions) obtained after ionization reaction of high-energy protons / heavy ions and residual gas molecules are used as signals, the signals are amplified to reconstruct the original position and cross section distribution of a beam, and the detector is a completely non-interception type detector and can be used as long-term online measurement equipment. According to the invention, the structure of the detector is systematically designed and optimized aiming at the position and section measurement of an extremely weak beam in proton / heavy ion radiotherapy equipment, a test is carried out on an experimental platform, a clear signal image can be obtained, the structure is compact, the performance is good, the work is stable and reliable, and the cost is low. The method is of great significance to debugging, operation and maintenance of proton / heavy ion radiotherapy equipment.

Apparatuses, methods, and systems are disclosed for performing channel occupancy time sensing. One method includes receiving information configuring a single channel occupancy time for multi-beam transmission in an unlicensed channel. The method includes performing sensing for the single channel occupancy time. The sensing includes: omni-directional sensing at a beginning of the single channel occupancy time; directional sensing on a plurality of beams at the beginning of the single channel occupancy time; directional sensing on the plurality of beams in a time domain multiplexing manner before each transmission based on a time gap between transmissions; or some combination thereof.

The invention discloses a controllable adjustment method and system for the motion state of a space optical soliton, and belongs to the field of optics, and the method comprises the steps: carrying out the periodic modulation of a transverse refractive index and a nonlinear coefficient in an optical lattice; constructing a nonlinear Schrodinger equation for describing light beam transmission characteristics based on the periodically modulated optical lattice; solving the nonlinear Schrodinger equation by using an equivalent particle method to obtain an optical soliton center position; and based on the center position of the optical soliton, the controllable adjustment of the motion state of the space optical soliton is completed through numerical simulation verification. According to the method, the transverse refractive index and the nonlinear coefficient are periodically modulated through the optical lattice, a new nonlinear Schrodinger equation is deduced and obtained, the nonlinear Schrodinger equation is solved through an equivalent particle method, several states of transmission of optical solitons in the optical lattice are analyzed, the correctness of the equation is verified through numerical values, and the nonlinear Schrodinger equation is obtained. The problem of motion trail control when optical solitons are transmitted in optical lattices is solved.

The invention provides an adaptive weight multi-particle beam flow transmission simulation method and device, and the method belongs to the technical field of particle accelerators, and specifically comprises the steps: dividing a to-be-processed macro particle beam to form a plurality of groups of macro particles; configuring a relative weight for each group of macro particles according to the density distribution characteristics of the macro particle beams; sampling each group of macro particles in combination with the relative weight of each group of macro particles to obtain a corresponding sampling result; determining the weight of each macro particle in each sampling result in combination with the relative weight of each macro particle in each sampling result; determining similarities of a candidate beam bunch and a macro particle beam bunch in different dimensions, wherein the candidate beam bunch is formed by collecting sampling results configured with weights of macro particles; under the condition that the similarity meets a beam dynamics simulation condition, determining the candidate beam bunch as a new macro particle beam bunch; the new macro particle beam is used for replacing the macro particle beam to carry out multi-particle beam flow dynamic simulation, and the evolution process of beam transmission in the accelerator is described.

The invention relates to the technical field of precision and ultra-precision machining, and discloses a CO2 full-laser machining device and method for a fused quartz micro convex lens array. The three-axis motion platform is arranged on the supporting platform; the pulse CO2 laser is used for generating a processing laser beam; the light beam transmission system sequentially comprises a light beam combining module, a light beam adjusting module, a light splitting module, a light beam guiding module, a scanning galvanometer and a focusing field lens along a laser beam path; the main light beam is guided to the scanning galvanometer through the light beam guiding module and is emitted to a fused quartz workpiece after being focused through the focusing field lens; the contour detection unit is used for taking morphology data of the micro-lens array in situ; the temperature monitoring unit is used for measuring the temperature of the processing area; the control unit is connected with the three-axis motion platform, the contour detection unit, the temperature monitoring unit and the pulse CO2 laser, and is used for adjusting the laser power and the displacement of the three-axis motion platform according to detection data; the device has the characteristics of high efficiency, high precision, non-contact processing and small heat influence.

The invention discloses a communication method and device, a storage medium and a computer program product, relates to the technical field of wireless communication, and is used for enabling a spatial relationship configuration scheme of a network device to be suitable for a multi-beam transmission scene. In the present application, a terminal device receives first information, the first information including information for indicating indexes of a plurality of resources. A terminal device transmits a first signal, the spatial relationship of which is associated with the spatial relationship of a plurality of resources. Since the first information received by the terminal device indicates the plurality of resources, the terminal device can transmit the first signal through the spatial relationship of the plurality of resources based on the indication of the second information. Through the scheme provided by the invention, the configuration problem of the spatial relationship in a multi-beam transmission scene can be solved.

Presented are systems, methods, apparatuses, or computer-readable media for multi-beam transmission signaling for uplink communication channels. A wireless communication device may receive, from a wireless communication node, B candidate groups of power control parameters. The wireless communication device may receive, from the wireless communication node, a first signaling to indicate the B candidate groups of power control parameters for a first physical uplink control channel (PUCCH) resource. B may be an integer greater than or equal to 1.

The utility model relates to a photoetching lens and a photoetching machine, which comprise a first lens group and a first reflecting mirror which are sequentially arranged along the direction of a first optical axis, and a second reflecting mirror, a second lens group and a third lens group which are sequentially arranged along the direction of a second optical axis, and after being reflected by the first reflecting mirror to pass through the second lens group in the forward direction, the light is reflected by the second reflecting mirror to pass through the second lens group in the reverse direction, and then passes through the third lens group to converge to an imaging surface. The structure of the photoetching lens has excellent imaging performance, a larger view field can be realized, and large-area photoetching pattern processing can be directly realized, so that the problem that the view field of the existing photoetching lens is small is solved; besides, a reflective structure is adopted, so that the light beam passes through the second lens group twice in the forward and reverse directions, the number of lenses is reduced by half while the transmission distance of the light beam is ensured, and therefore, the volume of the photoetching lens is effectively reduced, and the cost of the photoetching lens is reduced.

The invention discloses an ultrashort bending type beam homogenization transmission line. The ultrashort bending type beam homogenization transmission line is characterized in that the transmission line is an ultrashort bending type high-current homogenization transmission line comprising two pieces of four-eight-level composite iron and one piece of second-level iron; the ultra-short bending type high-current homogenized transmission line is an ultra-short bending type high-current homogenized transmission line A which is arranged along a beam current direction; or the ultra-short bending type high-current homogenization transmission line B is arranged along the beam direction; the ultra-short bending type high-current homogenization transmission line A is sequentially provided with an accelerator leading-out port, a beam matching mechanism, fourth and eight-stage composite iron 1, second-stage iron, fourth and eight-stage composite iron 2, a beam matching and homogenization effect observation mechanism 1 and a terminal 1 along the beam leading-out direction; the tetra-octupole composite iron of the beam line can simultaneously realize focusing and homogenization effects on beam envelope, the composite iron is installed on a beam transmission line, the number of transmission elements can be reduced, the length of the transmission line is shortened, and the construction cost of the beam transmission line is reduced.

The invention discloses a dual-mode precise regulation and control method and device for a proton treatment system, and relates to the technical field of proton treatment, and the device comprises a superconducting cyclotron, a beam transmission module, a treatment head module which comprises a first ionization chamber, a second ionization chamber, a range regulator, a multi-leaf grating and scanning iron, a treatment chair and a control module, the control module is used for receiving and analyzing a treatment plan and controlling the working states of the superconducting cyclotron, the beam transmission module, the treatment head module and the treatment chair in different working modes according to the treatment plan; the working mode comprises a first working mode and a second working mode, and the radiation dose of a proton beam required by the second working mode is far greater than the radiation dose of the proton beam required by the first working mode. The dual-mode precise regulation and control device can support a conventional working mode and also can support a flash therapy working mode, and different working modes can be switched to realize a treatment plan.

The invention provides a broadband tight coupling polarization conversion transmission and reflection integrated array antenna unit. An array is formed by periodically arranging a plurality of antenna units integrating transmission and reflection structures; the transmission structure comprises a cross-shaped dual-polarization receiving dipole antenna and a single-polarization radiation dipole antenna, a middle floor and a phase shift line are arranged between the two antennas, and a receiving layer and a transmitting layer of the transmission structure are formed through parallel double-line connection; the reflection structure is composed of a dipole antenna orthogonal to the receiving direction of the transmission structure, and reflection is completed through parallel double-wire grounding. The middle three layers of floors and the phase shift lines respectively form transmission and reflection band-shaped phase transmission lines, the lengths of the phase shift lines are adjusted according to different positions of each unit in the array, and spherical electromagnetic waves are converted into planar electromagnetic waves. The broadband bidirectional beam communication antenna has the advantages of broadband, low cost, bidirectional beam transmission and the like, and can be used for broadband bidirectional beam communication antennas.

An optical fiber combining-coupled ultraviolet laser ablation system, comprising a laser (1), a light homogenizing assembly (2), and an optical fiber combining assembly (3). The laser (1) is used for emitting laser light. The light homogenizing assembly (2) is arranged on an emergent light path of the laser light. The optical fiber combining assembly (3) is arranged on an emergent light path of the light homogenizing assembly (2). The light homogenizing assembly (2) is used for performing beam flat-top shaping and beam superposition on the laser light to obtain a target light spot. The optical fiber combining assembly (3) is used for performing multi-beam transmission on the target light spot, so that laser ablation can be efficiently and stably achieved.

The invention relates to the technical field of ion implantation, and discloses a dynamic adjustment method for large beam uniformity of an ion implanter. According to the method, a beam spot distribution data sequence in a beam transmission path is collected in real time, uniformity drift prediction is carried out in combination with an injection process parameter set, and beam uniformity prediction parameters are generated. And capturing a current beam spot form image by using a beam spot imaging device, inputting the current beam spot form image and the prediction parameters into a plurality of beam spot classifiers containing independent classification paths in parallel, and identifying to obtain actual beam spot distortion parameters. And executing electromagnetic field parameter prediction based on the parameter, generating a predicted electromagnetic field adjustment parameter, collecting an adjusted beam spot image through a feedback mechanism, and inputting the beam spot image into a plurality of electromagnetic field parameter classifiers in parallel again to output an actual adjustment parameter. And finally, integrating the distortion parameter and the adjustment parameter to generate a dynamic adjustment instruction set, and realizing closed-loop control of beam uniformity. According to the method, the problem of uniformity drift in the large-beam ion implantation process is effectively solved, and the process stability and the implantation efficiency are improved.

The invention discloses an LCOS optical illumination system for an AR-HUD projection unit, and belongs to the field of photoelectric illumination and display technologies. The system comprises an illumination light source, a collimating lens, a fly-eye lens, an optical diffuser, a wavelength selective light combination element, a polarized light conversion device, a relay lens, a PBS prism and an LCOS display chip. The illumination light source is a three-color LED light source and is composed of a red light LED, a green light LED and a blue light LED. After red primary light, green primary light and blue primary light are collimated by the collimation system, the light parallelism is optimized, the collimated light sequentially passes through the light diffusion element to optimize the light field uniformity and the fly-eye lens to eliminate the non-uniform illumination, then is unified into a single linear polarization state by the polarized light converter, is shaped by the relay system and keeps the light beam transmission quality, and finally is transmitted to the light source. And polarization state separation and light combination are realized through the PBS prism, and finally, the light is accurately coupled to the LCOS display chip, so that high-efficiency polarization state matching and imaging quality optimization are completed. According to the HUD-PGU system, the illumination brightness of the whole system is improved, the color reducibility of the system is improved, the illumination uniformity of system imaging is improved, the light energy utilization rate of the system is improved, meanwhile, the size of the HUD-PGU is reduced, and the manufacturing cost is reduced.

The invention relates to the technical field of wireless communication, in particular to a wireless communication system signal sending and receiving method based on an AI model. The system comprises a delay coordinate embedding unit, a neural flow tracking unit, a continuous evolution unit, a Riemann decoding unit and a closed-loop control unit. The system maps the pilot frequency to a high-dimensional phase space by using a Takens principle, and reconstructs a channel dynamic topology; the core of the method is that a manifold derivative network is utilized to calculate a flow field vector, continuous time deduction is carried out through a Shenchang differential equation, evolution deviation is eliminated in combination with a geometric projection correction term, and thus the future channel state is accurately predicted. Calculating a CSI matrix based on the prediction result to optimize beam transmission; according to the method, the limitation of single-variable observation is broken through, and reconstruction and perception from discrete data to a full view of a high-dimensional nonlinear system are realized.

The present invention discloses a laser hole repair system for narrow cavity structural parts without back wall damage, including an ultrafast laser, a beam transmission system, a beam shaping system, a beam focusing system, a coaxial vision system, a three-dimensional motion platform and a computer controller; the ultrafast laser provides a femtosecond laser beam for the entire system, and after the laser beam is transmitted through the beam transmission system, the beam is transmitted to the beam shaping system to obtain a Bessel beam after shaping optimization, and the beam is then focused and contracted by the beam focusing system to the micropores on the surface of the target material of the narrow cavity structural part on the high-precision three-dimensional mobile platform for hole repair, and the whole hole repair process is observed through the coaxial vision system. The present invention obtains the required complete cylindrical micropores and the back wall of the narrow cavity structural part after processing is not damaged. Only the beam process control means are used to achieve the narrow cavity without back wall damage during hole repair, and the operation is simple and convenient.

The invention provides a structure for improving electron beam energy distribution after beam-wave interaction. The structure comprises a traveling wave interaction circuit, a standing wave interaction circuit and a step-down collector which are sequentially arranged in the electron beam transmission direction. The standing wave interaction circuit comprises a resonant cavity; an electron beam channel of the traveling wave interaction circuit is communicated with an electron beam channel of the standing wave interaction circuit; and the step-down collector is communicated with an electron beam channel of the standing wave interaction circuit. The structure can solve the problem that the whole optimization process becomes more complex due to the existing mode of improving the energy recovery efficiency by optimizing the traveling wave interaction circuit.

The invention provides a particle radiotherapy beam blocking system and method, and the system comprises a particle beam generation device, and also comprises a blocking device which is disposed on a beam transmission path of the particle beam generation device and is used for blocking the beam transmission path of the particle beam; the dose monitoring device is arranged behind the blocking device and is used for monitoring the beam dose in real time and generating a beam dose signal; the control module is used for receiving the beam dose signal of the dose monitoring device, judging whether the beam dose is greater than or equal to a preset beam dose, and judging whether to send an instruction of stopping beam output to the particle beam generation device and / or send an instruction of blocking a beam transmission path to the blocking device according to a judgment result; according to the invention, the beam dose is monitored in real time, and beam outgoing is stopped and the beam is blocked in time when the preset beam dose is reached, so that the safety and accuracy of particle radiotherapy are further improved, and the injury to a patient caused by excessive irradiation is avoided.

The invention discloses a terahertz detector linearity calibration device and method. The terahertz detector linearity calibration device comprises a terahertz radiation source, a monitoring detector, a baffle, a terahertz film attenuator, a diaphragm, a standard terahertz detector, a digital multimeter, a computer and measurement and control software. The terahertz radiation source is used for radiating parallel or divergent terahertz wave beams; the monitoring detector is used for monitoring the fluctuation condition of the terahertz radiation source; the baffle plate is used for being inserted into a terahertz light path when the noise of the detector is detected so as to play a role in cutting off the terahertz light path; the terahertz thin film attenuator is used for carrying out quantitative attenuation on terahertz power without changing the transmission state of a wave beam; the digital multimeter is used for measuring an electric signal output by the detected terahertz detector, and the electric signal is collected by the computer and sent to the data processing software, and then the linearity is calculated according to the linearity. According to the invention, the interference of the attenuator on beam transmission characteristics can be effectively reduced, so that the calibration precision is improved.

A method for measuring channel state information is provided, which is applicable to a network device of a serving cell of a UE, includes: transmitting measurement configuration information of a neighbor cell to the UE, in which the measurement configuration information is configured to instruct the UE to measure channel state information between the UE and the neighbor cell based on beam transmission.

A laser transmission optical cable based on a hollow-core anti-resonance optical fiber is suitable for flexible transmission of ultrafast laser, and comprises an input laser beam, and a first optical window, a first air chamber, a first water chamber, a hollow-core capillary optical fiber, a hollow-core anti-resonance optical fiber, a second water chamber, a second air chamber and a second optical window which are sequentially arranged along the beam transmission direction, the hollow-core capillary optical fiber and the hollow-core anti-resonance optical fiber are glued to form a nested structure, and the ratio of the diameter of a cladding capillary of the hollow-core anti-resonance optical fiber to the diameter of a fiber core of the hollow-core anti-resonance optical fiber is 0.63-0.68. The hollow-core anti-resonance optical fiber has high single-mode purity, the problem that a laser mode is coupled to a high-order mode due to mechanical disturbance such as optical fiber bending and twisting can be solved, the hollow-core anti-resonance optical fiber has higher adaptability in a complex processing environment, the laser processing efficiency and stability are improved, and the optical fiber is suitable for large-scale production. And meanwhile, the influence of a heat effect under high power and a nonlinear effect caused by air in an ultrafast laser transmission process are considered.

The invention discloses a laser cutting machine light beam stabilization and transmission optimization method and platform, and relates to the technical field of laser cutting, and the method comprises the following steps: carrying out cutting equivalent partition based on current structure attribute information and structure design information of a to-be-cut workpiece to obtain N pieces of workpiece cutting area information; cutting machine control double channels are built and comprise a light beam stability control channel and a light beam transmission control channel, control parameter analysis is conducted on the information of the N workpiece cutting areas in parallel, and N workpiece area cutting control parameters are obtained; and a PID controller is adopted to carry out regulation and control calculation on the N workpiece area cutting control parameters based on the light beam quality parameters and the workpiece cutting surface form data, and the cutting control correction is determined to carry out compensation closed-loop control on the target laser cutting machine. The technical effects that light beam stable control and transmission loss reduction are achieved, the metal cutting precision and stability are improved, and then the workpiece laser cutting quality is ensured are achieved.

The present invention belongs to the technical field of DNI data processing, and specifically relates to a method for obtaining accurate DNI data for a tower mirror field. The method comprises: S1: quality judgment of direct radiation data: obtaining extraterrestrial normal direct radiation, normal direct radiation on the earth's surface, total horizontal global radiation on the earth's surface, and scattered horizontal radiation on the earth's surface from a meteorological station, and calculating the direct beam transmittance, effective global horizontal transmittance, and effective scattered horizontal transmittance in combination with the solar zenith angle; dividing the direct radiation DNI into three levels based on the direct beam transmittance, effective global horizontal transmittance, and effective scattered horizontal transmittance; S2: obtaining accurate DNI data according to the classification of direct radiation DNI. The method provided by the present invention can obtain accurate DNI data, and provide help for more accurately determining the number of heliostat projections and calculating more accurate thermal energy.

The invention provides an accelerator system adjustment method, an accelerator system, electronic equipment and a storage medium. The transmission characteristic data and the charge quantity data of the undeflected beam are obtained through the first beam position detector, and the form and the charge quantity of the undeflected beam are accurately adjusted in combination with a preset adjustment strategy, so that the stability of beam transmission is ensured. And after the form data of the first beam reaches a preset value, monitoring the deflected beam data by using a second beam position detector, and further accurately adjusting the accelerator system to ensure that the deflected beam conforms to the target transmission characteristics. According to the invention, the transmission state of the beam can be accurately controlled in real time, risks of vacuum box breakdown and the like caused by beam mismatch are avoided, the safety and the stability of the system are improved, the possibility of equipment damage is obviously reduced especially under the high-dose-rate transient beam, and the treatment effect and the continuity of Flash radiotherapy are guaranteed.

The invention provides a control method, device and equipment of an optical fiber laser and a storage medium, and the method comprises the steps: carrying out the high-sensitivity monitoring processing of a light beam transmission path of a fusion welding point region in the optical fiber laser, and obtaining micro-reflection data; performing multi-angle analysis processing on the characteristic waveform and the mode coupling signal in the micro-reflection data according to pre-stored optical reference information to obtain corresponding welding point abnormal distribution information; according to the abnormal distribution information, performing directional adjustment processing on local pumping energy and a thermal management mode of the fusion welding point area to obtain local control parameters; and performing cooperative calibration processing on the overall output power of the fiber laser according to the local control parameters to obtain target light beam output. Through the cooperation of monitoring analysis and directional adjustment, the micro reflection of the fusion welding point can be more accurately detected and inhibited, and the method has a remarkable effect on the stable output of light beams of a high-power fiber laser.