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A method and system for adjusting and controlling planar multi-beam laser parameters

A laser parameter and control system technology, applied to lasers, laser components, phonon exciters, etc., can solve the problems of limiting multiple beams, low flexibility, low laser processing efficiency, etc., to reduce optical system errors, control Flexibility and the effect of improving laser processing efficiency

Active Publication Date: 2021-03-30
WUHAN JINDUN LASER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent has the following defects: (1) the number and position of laser beams can only be specified when generating a hologram, and the position of the modulated output beam cannot be adjusted in real time; (2) only when generating a hologram The positions of all beams are uniformly specified in the diagram, and a certain beam cannot be individually regulated according to the real-time state of the output beam; (3) The actual energy of multiple output beams cannot be monitored and fed back in real time, and the position of a certain beam cannot be monitored in real time. Real-time energy can be regulated separately; (4) All the regulated beams have the same beam parameters, such as light intensity, amplitude, polarization state, beam shape, etc.
[0008] It can be seen that the prior art does not disclose the detection and judgment of the actual position and energy information of the multi-beams, and iterative modulation of the output laser beams according to the actual detection results, so that the real-time state of each laser beam in the multi-beams is consistent with the target Content that matches the status
Moreover, most of the multi-beam parallel processing currently on the market cannot simultaneously adjust the position and energy of any one of the multi-beam beams, and cannot effectively use all the energy output by the laser. application

Method used

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  • A method and system for adjusting and controlling planar multi-beam laser parameters
  • A method and system for adjusting and controlling planar multi-beam laser parameters
  • A method and system for adjusting and controlling planar multi-beam laser parameters

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Embodiment 1

[0067] In this embodiment, the laser system includes a laser light source, an optical path deflection component, a beam parameter regulation component, a spot energy and position sensing component, and a control terminal. The beam parameter regulation component, spot energy and position sensing component are respectively connected with the control The terminals are connected; the control terminal is used to initialize and generate a hologram of the output light field, and load the hologram onto the beam parameter control component; the optical path deflection component is used to inject multiple laser beams On the spot energy and position sensing component located in the detection area, or incident on the working plane located in the target area; the beam parameter regulation component is used to receive the laser beam output by the laser light source, and generate a laser beam according to the hologram Multiple laser beams; the spot energy and position sensing components are u...

Embodiment 2

[0113] Such as Figure 5 As shown, the present embodiment provides a planar multi-beam laser parameter control system, including a laser light source 1 for generating coherent laser beams, a beam parameter control component 6, a flip mirror 10, a first focusing component 11, a spot energy and position sensor The sensing component 12, the second focusing component 13, the working plane 14 and the control terminal, the laser light source 1, the beam parameter regulation component 6 and the flip mirror 10 are sequentially connected in the optical path, and the flip mirror 10 divides the laser beam into two paths, One of them is incident on the working plane 14 after being focused by the second focusing component 13, and the other is incident on the spot energy and position sensing component 12 through the first focusing component 11, and the control terminal is respectively connected with the The beam parameter regulation component 6, the spot energy and position sensing componen...

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Abstract

The invention relates to a planar multi-beam laser parameter regulation and control method and system, and the method comprises the steps: carrying out the initialization of the system, obtaining a hologram of an output light field, and generating a plurality of laser beams entering a light spot energy and position sensing assembly; enabling the light spot energy and position sensing assembly to collect energy and position information of multiple laser beams with focuses located on the plane where the light spot energy and position sensing assembly is located. The laser system controls the optical path to be switched, so that the plurality of laser beams are incident to a target area through the optical path. According to the invention, closed-loop feedback control is adopted to dynamically adjusting parameter information of each laser beam; parameter information and quality of output light beams are monitored in real time, control is flexible, it is guaranteed that each laser beam entering a target area reaches a corresponding set target, errors of an optical system are effectively reduced, and therefore each laser beam irradiating into the target area can be modulated freely andaccurately, and the actual application requirement is met.

Description

technical field [0001] The present invention relates to the technical field of laser multi-beam parameter control, in particular to a method and system for plane multi-beam laser parameter control. Background technique [0002] The directional propagation laser has the advantages of high energy density, good monochromaticity, high coherence, polarization characteristics, etc., and is widely used in optics, physics, microelectronics and laser communication, laser processing, laser radar, bioengineering and medicine, etc. field. With the deepening of research and the advancement of technology, the demand for parallel operation and multi-task processing continues to increase, and more and more researchers are studying multi-beam technology. [0003] Multi-beam control technology usually refers to the technology of controlling various parameters of multiple laser beams at the same time. Common controllable parameters include the number, direction, light intensity distribution (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/00
CPCH01S3/0071
Inventor 翟中生刘顿张骆刘愿操文泽
Owner WUHAN JINDUN LASER TECH CO LTD