Laser damage resistance testing system

Abstract

The invention provides a laser damage resistance testing system which comprises a pulse laser, a first light barrier, a first polaroid, a first half wave plate, a first electronic control rotating table, a second light barrier, a second polaroid, an indicating light source, an electronic control zoom system, a first 45-degree partial reflecting mirror, a CCD facula analysis meter, a second 45-degree partial reflecting mirror, an energy meter, a photoelectric detector, a sample room, a monitoring camera, a third light barrier and a control system. Lasers are focused in the sample room, focused faculae can be adjusted continually through the control system, damage strength is formed, video real-time monitoring is available in the sample room so that a tester can monitor a threshold value point when a sample is damaged, the size of the faculae at the position of the sample is monitored in real time by the CCD facula analysis meter, a three-dimensional strength distribution diagram of the faculae is given, pulse energy is monitored in real time by the energy meter, the pulse width of the lasers is detected by the photoelectric detector in real time, real-time peak value power density is provided after detection data are processed through software, and the damage threshold value of the sample is detected accurately.

Description

Technical field: [0001] The invention relates to a laser testing system, in particular to a laser damage resistance testing system. Background technique: [0002] In recent years, due to the tremendous development of lasers, they have been gradually applied in more and more fields, among which high-power lasers have been widely used in particular. In lasers, due to the high energy of the beam, the internal components of the system, such as resonator mirrors, lenses, beam splitters, etc. The production and operation of the laser are closely related. When any one of the components is damaged, the quality of the laser beam will be reduced, the output power will be reduced, and the laser will even fail to operate. In some application fields, such as laser marking, welding and scanning, etc., when the output power of the laser is too high, the processed sample will be damaged. Therefore, it is also necessary to monitor the laser damage of the workpiece to determine the appropria...

AI Technical Summary

Problems solved by technology

[0003] In the existing anti-damage testing devices, it is usually judged whether it constitutes damage by applying a certain power to the surface of the sample, but usually the power cannot be changed, and the judgment method is single, resulting in the inability to effectively and accurately judge the damage resistance of the sample

Images