Gaussian laser spot energy distribution measuring method and device

CN119223442AActive Publication Date: 2024-12-31ZHEJIANG UNIV OF TECH
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Patent Information

Application Number
CN202411769585.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2024-12-31
Estimated Expiration
2044-12-04

AI Technical Summary

Technical Problem

In the prior art, the inclination of infrared laser spots in the projection zone causes distortion of energy distribution patterns, affecting the quality of spot uptake, and failing to effectively solve this problem.

Method used

The Gaussian laser spot energy distribution measurement method and device are used to output Gaussian lasers through the laser output unit, and the distance measurement data is obtained in combination with the distance measurement unit. The spot energy measurement is measured using the projection method, and the light intensity distribution is corrected by the image deflection correction method. Generate a corrected spot energy distribution map.

Benefits of technology

The distortion of the spot energy distribution map is eliminated, the quality of the spot energy distribution is ensured, and the foundation is laid for subsequent optical path shaping and morphological analysis.

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Abstract

The invention relates to a Gaussian laser spot energy distribution measurement method and device, and the method comprises the steps: enabling a laser output unit to output Gaussian laser, enabling a distance measurement unit to be matched with the laser output unit, obtaining distance measurement data, and correcting the light intensity distribution of a light spot through an image deflection correction method when the light spot energy is measured through a projection method. And the image acquisition unit is arranged at the side part of the laser output unit and is used for receiving and outputting the laser which is subjected to diffuse reflection of the projection area. According to the method, the light spot morphology is obtained for infrared laser fixed-point shooting; in order to solve the problem of distortion of a light spot energy distribution diagram caused by inclination of a projection area, a scheme is designed to eliminate distortion, the quality of light spot energy distribution intake is ensured, and a foundation is laid for subsequent light path shaping and light spot morphology analysis.
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Citation Information

Patent Citations

  • Method of measuring distance and angle between laser probe and irradiated plane in real time using monitoring CCD

    CN107270818A

  • Far-field laser spot intensity distribution measuring device and measuring method

    CN117782311A

  • Systems and Methods for Laser Beam Direct Measurement and Error Budget

    US20160022492A1