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Homogenization Device of Laser Diode Array Beam Based on Spatial Spectrum Segmentation

A laser diode and segmentation processing technology, applied in the field of lasers, can solve the problems of uneven light intensity distribution, complex structure, etc., and achieve the effects of easy installation and adjustment, simplifying the structure of the device, and eliminating dark lines.

Active Publication Date: 2018-11-30
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing technical solutions are often complex in structure, and can only perform beam shaping by homogenizing the beam emitted by the laser diode array, and cannot obtain a spot with uniform distribution of light intensity.

Method used

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  • Homogenization Device of Laser Diode Array Beam Based on Spatial Spectrum Segmentation
  • Homogenization Device of Laser Diode Array Beam Based on Spatial Spectrum Segmentation
  • Homogenization Device of Laser Diode Array Beam Based on Spatial Spectrum Segmentation

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] Such as figure 1 As shown, this embodiment discloses a homogenization device for laser diode array beams based on spatial spectrum segmentation processing, including:

[0019] The laser diode array A, the micro-cylindrical lens array B (the micro-cylindrical lens array is composed of small cylindrical lens units, and each small cylindrical lens unit is collimate...

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Abstract

The invention discloses a diode laser matrix beam uniformizing device based on spatial frequency spectrum segmentation process. The device is capable of realizing beam shaping of planar array type laser diode arrays to obtain large-area uniform light spots. The device comprises a laser diode array, a micro-cylindrical lens array, a first Fourier transform component and a second Fourier transform component in sequential arrangement on a light path. High-power light beams emitted by the laser diode array are collimated in a fast axis direction through the micro-cylindrical lens array, then subjected to Fourier transform through the first Fourier transform component and finally subjected to Fourier transform through the second Fourier transform component.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a homogenization device for laser diode array light beams based on spatial spectrum division processing. Background technique [0002] High-power laser diode arrays with uniform spot intensity distribution have important applications in many fields such as all-solid-state slab laser pumping, laser material processing, laser lighting, laser therapy, photocatalysis, and material surface treatment. However, the beam emitted by the laser diode array itself has defects, and it needs to be shaped accordingly to meet the requirements of use. The shaped beam should meet two requirements: first, the spot intensity distribution should be uniform and the energy density should be high; at the same time, the high utilization rate of the power of the laser diode array should be ensured. [0003] Laser diode arrays are stacked from bars. The light-emitting surface of a general bar is composed ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/06H01S5/40G02B27/09
Inventor 彭钦军李帅徐一汀郭亚丁徐健王保山申玉陈中正薛正伟薄勇许祖彦
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI