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

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...

AI Technical Summary

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

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