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Beam shaper

A shaper, Gaussian beam technology, applied in optics, instruments, optical components, etc., can solve problems such as high cost and large light loss, and achieve the effect of improving utilization and uniform distribution

Inactive Publication Date: 2016-10-05
SHENZHEN FIBERTOP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The light from these shapers can be kept uniform over a long distance, but all these technologies require complex and precise processing, the cost is extremely high, and the light loss is relatively large, such as US patents US008031414, US007400457, etc.

Method used

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Examples

Experimental program
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Embodiment Construction

[0018] The preferred embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] figure 1 The middle line 1 represents the distribution of Gaussian light intensity, the X-axis represents the distance from the center of Gaussian light, and the light intensity corresponds to the Y-axis on the left. Line 2 represents the fraction of light within a circle of radius x to the total Gaussian light energy, for the y-axis on the right. Here it is assumed that the central light intensity of Gaussian light is 1W / mm 2 , the beam waist radius is 1mm. It can be seen from the figure that the distribution of light intensity and light energy is very uneven. When r=0.59mm, the light intensity weakens to 0.5W / mm 2 , at this time the energy inside the circle is about 50% of the total energy, and the area is 1.1mm 2 ; At r=1.22mm, the light intensity becomes a very small 0.05W / mm 2 , there is only 95% of the total energy in the...

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Abstract

The invention discloses an optical element used for shaping Gaussian light into uniform light. Both ends of the central axis of the optical element are provided with an incident light port and an emergent light port coupled with a photoelectric conversion chip, and a reflection channel for light beams with large divergence angles is formed between the two ports. The reflection channel is enclosed by several mirrors, and light with a large scattering angle is reflected back to places near a beam center when a Gaussian beam passes through the channel. The whole Gaussian beam shaper can be composed of a transparent glass cuboid, utilizes the total reflection effect, requires no film coating, and has the advantages of simple structure, low cost and good light uniformity near the emergent light port.

Description

technical field [0001] The present invention relates to Gaussian beam shapers. Background technique [0002] The distribution of laser light intensity in space is generally uneven, generally high in the middle and low at the edge. The typical spatial distribution is Gaussian distribution. The farther the light intensity is from the center, the weaker it becomes. slow down. This non-uniform distribution has brought many problems to the use. In the fields of optical fiber power supply, material processing, holography, medical treatment and other fields, there is a need to convert Gaussian light or similar Gaussian light into uniform light. [0003] Optical fiber power supply uses a laser module in the computer room to convert electricity into laser, and then the laser is transmitted to the remote end along the optical fiber, and then the photoelectric conversion chip is used to convert the laser light into electricity to drive the remote electrical device. Optical fiber powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/09
Inventor 雷润生
Owner SHENZHEN FIBERTOP TECH CO LTD