A laser simulation control method and system

Abstract

The invention relates to a simulation control method of a laser. A three-dimensional simulation model is constructed according to the internal structure of the simulated laser and the material thermal induction value of the parts involved in the internal structure, and the simulation data is input into the three-dimensional simulation model to obtain a simulated three-dimensional pseudo-color map. Obtain the target area exceeding the set stress threshold in the color map, adjust the temperature of the target area of ​​the simulated laser so that the stress value of the target area is lower than the set stress threshold, take the adjusted temperature of the target area as the equilibrium temperature, and test the laser and simulate Set up a bidirectional semiconductor thermostat in the target area corresponding to the laser, adjust the heating or cooling of the bidirectional semiconductor thermostat according to the temperature distribution color map, and judge whether the temperature of the target area of ​​the test laser is at an equilibrium temperature, and if so, complete the control of the test laser. Improve the pointing stability of the laser beam output by the laser.

Description

technical field [0001] The invention relates to the field of laser processing equipment, in particular to a laser simulation control method and system. Background technique [0002] In the application of precision micromachining, the laser beam must be accurately and stably incident into the laser scanning and focusing optical system. After beam transformation and shaping, it can be accurately injected into a specific position of the material to be processed, and the local ablation of the material by laser light energy can be completed. . Therefore, the laser beam pointing stability is particularly important. [0003] The factors of laser beam pointing stability include random changes in ambient temperature, and the mechanical structure of the laser will undergo different degrees of thermal deformation at different temperatures, that is, the heat generation of each component is different or the coefficient of thermal deformation is different, resulting in heat generation be...

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