Gaussian beam shaping device

A Gaussian beam and shaping device technology, which is applied in optics, optical components, instruments, etc., can solve the problems affecting the shaping effect, real focus energy concentration, induced sparks, etc., and achieve the effect of improving the shaping quality

Active Publication Date: 2022-03-22
WUHAN YIFI LASER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The disclosure provides a Gaussian beam shaping device for the problem caused by the real focus in the Gaussian beam shaping process using a positive focal length lens
This device is used to solve the problems of energy accumulation caused by real focus, electric sparks induced by ionized air, affecting the shaping effect and damaging optical components in the process of Gaussian beam shaping

Method used

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  • Gaussian beam shaping device

Examples

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Effect test

Embodiment 1

[0046] A shaping device for a Gaussian beam, comprising such as figure 1 As shown, the first lens 1, the second lens 2, the vacuum assembly 3, and the casing 4. The housing 4 supports the installation of the first lens 1 , the second lens 2 and the vacuum assembly 3 , and is installed inside the housing 4 . Light beams from different directions are gathered at the focal point by utilizing the positive focal length of the first lens 1 to perform preliminary compression shaping. Then it diverges at the focal point, and through the action of the second lens 2, the divergent light beam becomes a uniform parallel light beam to realize flattening of the Gaussian beam. Wherein the Gaussian beam is condensed in the vacuum component 3 after being shaped by the first lens 1 . Since the interior of the vacuum component is in a vacuum state, even if the heat gathers at the real focus, because there is no air and a medium for ionization, the formation of electric sparks is eliminated, an...

Embodiment 2

[0048] On the basis of embodiment 1, the vacuum assembly includes such as figure 1 As shown, the first high-permeability component 31 , the second high-permeability component 32 , the cavity 33 , and the exhaust valve 34 . The pumping valve 34 is used to evacuate the inside of the vacuum assembly, and the first high-transmittance component 31 is used for the Gaussian beam to enter the vacuum assembly 3, while preventing light from being reflected when passing through the first high-transparency component 31, thereby forming stray light. Affects the quality of the reshaped Gaussian beam. The second high-transparency component 32 is used for the Gaussian beam to leave the vacuum assembly 3 , and its function is the same as that of the first high-transparency component. The cavity 33 is used for assembling the first high-permeability component 31 , the second high-permeability component 32 and the exhaust valve 34 . Wherein, as long as the exhaust valve is not installed on the ...

Embodiment 3

[0051] On the basis of Embodiment 1, the first lens 1 and the second lens 2 adopt an aspherical structure. Such as figure 1 As shown, the first lens 1 has a first flat surface 11 and a first convex surface 12 , and the second lens 2 has a second convex surface 21 and a second flat surface 22 . In the actual production process, the first lens 1 and the second lens 2 only need to have a positive focal length. Only the above-mentioned setting method is easier to process and more convenient to operate, and it does not rule out that the first lens 1 and the second lens 2 have other shapes.

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Abstract

The invention relates to a Gaussian beam shaping device which adopts a positive focal length lens to shape a Gaussian beam, focuses are gathered in a vacuum environment through arrangement of a vacuum assembly on the basis of the positive focal length lens, and air ionization is not caused due to the fact that no air interference exists in the vacuum environment. And the shaping effect and the service life of the shaping device are improved. Meanwhile, components such as a high-transmittance film, a matting device and a heat dissipation device are further added on the basis, so that the performance of the shaping device is further improved. The device disclosed by the invention has a better Gaussian beam shaping effect, meanwhile, the manufacturing process is simple, the device is suitable for batch production, the safety performance is better, and the service life is longer.

Description

technical field [0001] The present disclosure specifically relates to the field of Gaussian beams, in particular to a Gaussian beam shaping device. Background technique [0002] At present, with the increasing maturity of laser technology, its application range is becoming wider and wider, such as: laser processing, laser welding, biomedical engineering, etc. Because the amplitude distribution of the cross-section of the laser beam follows a Gaussian function, it is also called a Gaussian beam. In the actual application of Gaussian beams, there is a problem of uneven energy output. When the output energy of the Gaussian beam is not uniformly distributed, it will lead to uneven energy absorption on the affected surface of the material, which will cause the local temperature to rise and destroy the structure of the material, which greatly limits the application of the Gaussian beam. [0003] The patent application document with the publication number: CN113820788A discloses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/09
CPCG02B27/0927
Inventor 吴轩冉昌林蔡汉钢雷波
Owner WUHAN YIFI LASER EQUIP CO LTD
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