Phase locking combined type high-power carbon dioxide laser adopting cylinder discharge

A technology of phase locking and carbon dioxide, which is applied to lasers, laser components, phonon exciters, etc., can solve the problems of difficulty in increasing the output power of lasers, failure to meet certain requirements for coherence, and large volume of lasers, etc., to achieve compact structure, volume Small, good beam quality effect

Inactive Publication Date: 2014-02-26
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above three types of lasers have their own advantages, but there are also shortcomings. The output power of the two flow-type carbon dioxide lasers is high and can be widely used in the field of laser industrial processing. However, the volume of such lasers is too large, so the processing machine head and The laser can only be separated, and there is often a long distance between the two. At present, there is no optical fiber for transmitting carbon dioxide laser, so the linear transmission and optical path control of the laser are realized by optical components and corresponding control measures.
In contrast, the slab waveguide carbon dioxide laser is small in size and can be directly mounted on the processing machine tool, but the output power of the laser is limited by the structure and it is difficult to increase
In the existing patents, although a combined cylindrical discharge high-power gas laser has been proposed (invention patent: name: construction method and device of a combined cylindrical discharge high-power gas laser, application number: CN201210557750.X), the The laser is small in size, compact in structure, and can output high-power laser, but its coherence cannot meet certain requirements

Method used

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  • Phase locking combined type high-power carbon dioxide laser adopting cylinder discharge
  • Phase locking combined type high-power carbon dioxide laser adopting cylinder discharge
  • Phase locking combined type high-power carbon dioxide laser adopting cylinder discharge

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Experimental program
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Effect test

Embodiment 1

[0035] Refer to attached figure 1 , 2 , the thickness of the inner cylinder 31 and the outer cylinder 32 (that is, the width of the two concentric rings on the cut surface of the cylinder) is 1.5cm, the radius of the outer cylinder 32 is 15cm, the radius of the inner cylinder 31 is 12cm, and the distance between the cores of the two cylinders 3cm, the length of the outer cylinder 32 is 1.2m, the length of the inner cylinder 31 is 1.3m, and the two cylinders are coaxial with the laser symmetry axis 16; the radius of curvature of the toric mirror 1 is 4.5m, and the first axicon 2 is Nested in the toric mirror 1, the two mirrors constitute a combined mirror and placed 5 cm to the left of the left end face 5 of the inner cylinder, the first concave mirror 4 has a curvature radius of 1.6 m, and is nested in the second axicon mirror 3 , the two mirrors constitute another combined mirror and are placed 5 cm to the right of the right end face 6 of the inner cylinder, and the entire d...

Embodiment 2

[0037] refer to figure 1 , 3 , the thickness of the inner cylinder 31 and the outer cylinder 32 (that is, the width of the two concentric rings on the cut surface of the cylinder) is 1.5cm, the radius of the outer cylinder 32 is 15cm, the radius of the inner cylinder 31 is 12cm, and the distance between the cores of the two cylinders 3cm, the length of the outer cylinder 32 is 1.2m, the length of the inner cylinder 31 is 1.3m, and the two cylinders are coaxial with the laser symmetry axis 16; the radius of curvature of the toric mirror 1 is 4.5m, and the first axicon 2 is Nested in the toric mirror 1, the two mirrors constitute a combined mirror and placed 5 cm to the left of the left end face 5 of the inner cylinder, the first concave mirror 4 has a radius of curvature of 2 m, and is nested in the second axicon mirror 3, The two mirrors constitute another combined mirror and are placed 5cm to the right of the right end face 6 of the inner cylinder, and the whole device remai...

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Abstract

The invention discloses a phase locking combined type high-power carbon dioxide laser adopting cylinder discharge, relating to the fields of optical engineering and laser application. The laser comprises a toric mirror, an axicon, a concave mirror, an inner cylinder, an outer cylinder, a quartz discharge tube, a convergent lens and a support. According to the phase locking combined type high-power carbon dioxide laser adopting cylinder discharge, light beams output from an output mirror are changed into one tiny hollow annular carbon dioxide laser beam after being converged by the convergent lens, and the high-power carbon dioxide laser has the advantages of high powder, good coherence, high laser beam quality, compact structure and small size, and can be directly erected on a machine tool for machining.

Description

technical field [0001] The invention relates to the field of optical engineering and laser application, in particular to a phase-locked combined cylindrical discharge high-power carbon dioxide laser. Background technique [0002] Laser processing is a high-precision processing of metal and non-metal materials by using the characteristics of high energy, good directionality and small spot of laser light. During laser processing, its energy is condensed into a very high-density laser beam in the form of light. When such a beam reaches the surface of the material to be processed, it will generate huge heat, and the temperature of the material surface will rise rapidly. And be melted to achieve the purpose of processing. The lasers used for processing have successively experienced pulse lasers represented by ruby ​​lasers and neodymium glass lasers, and continuous wave lasers represented by Nd:YAG lasers and carbon dioxide lasers. In recent years, international laser processin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/034H01S3/098
Inventor 徐勇根樊群超王时建
Owner XIHUA UNIV
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