Pretreatment device and treatment method for damage performance of laser material
A preprocessing device and laser material technology, applied in lasers, laser welding equipment, laser components, etc., can solve problems such as unfavorable, low frequency of lasers, and improve laser pretreatment effects, so as to achieve the effect of improving efficiency and improving effect
Inactive Publication Date: 2019-12-20
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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However, in the existing methods of laser pretreatment to improve the damage performance of laser materials, the frequency of the laser used is very low, which not only seriously restricts the efficiency of laser pretreatment, but also is not conducive to further improving the effect of laser pretreatment
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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. But it should not limit the protection scope of the present invention.
[0025] See figure 1 , as can be seen from the figure, the preprocessing device of laser material damage performance of the present invention includes a solid-state laser 1, an optical system 2, a first reflector 3, a second reflector 4, a first aperture stop 5, a focusing mirror 6, a control System 7 , second aperture stop 8 and absorber 9 . The solid-state laser 1 is a high-repetition-frequency ultraviolet solid-state laser with an adjustable repetition rate of 30kHz-200kHz and a wavelength of 355nm. The optical system 2 is composed of two lenses, namely a concave lens and a convex lens, which are used to realize the parallelization and beam expansion of the light beam, and the beam expansion factor is 10 times. Both the first reflector 3 and the second reflector 4 are ...
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The invention relates to a pretreatment device and method for improving damage performance of a laser material. The pretreatment device comprises a solid laser device, an optical system, a first reflector, a second reflector, a first small hole diaphragm, a focusing mirror, a control system, a second small hole diaphragm and an absorber. The solid laser device is a high-repetition-frequency ultraviolet solid laser device, the repetition frequency ranges from 30 kHz to 200 kHz and can be adjusted, and the wavelength is 355 nm. The high-repetition-frequency ultraviolet solid laser device is adopted as the laser device, the repetition frequency is high and can be adjusted, the efficiency of laser pretreatment can be obviously improved, and the effect of laser pretreatment can be further improved.
Description
technical field [0001] The invention relates to laser materials, in particular to a pretreatment device and a treatment method for improving the damage performance of laser materials. Background technique [0002] With the development of laser technology, lasers are widely used in various industries due to their outstanding advantages. Among them, the damage of laser materials has always been a key factor limiting the long-term stable operation of lasers and the improvement of laser energy. For a long time, laser pretreatment has been widely used as an effective means to improve the damage of laser materials. However, in the existing methods of laser pretreatment to improve the damage performance of laser materials, the frequency of the laser used is very low, which not only seriously restricts the efficiency of laser pretreatment, but also is not conducive to further improving the effect of laser pretreatment. Contents of the invention [0003] Aiming at the problems ex...
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IPC IPC(8): B23K26/06H01S3/00
CPCB23K26/0643H01S3/0007H01S3/005
Inventor 齐红基余振王斌王虎陈端阳
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI