Composite heat dissipation water-cooling-free laser

Abstract

The invention discloses a composite heat dissipation water-cooling-free laser, which comprises an optical system, a heat dissipation device and a phase change heat dissipation system, and is characterized in that the heat dissipation device can provide a cold source for the phase change heat dissipation system; the phase change heat dissipation system comprises a shell; a liquid pool is arranged in the shell, and the bottom of the liquid pool is tightly attached to the optical system; a phase change material is further arranged in the shell, the liquid phase change material is contained in theliquid pool and absorbs heat emitted by the optical system to be evaporated, and the evaporated phase change material absorbs the low temperature provided by the heat dissipation device and is liquefied to return to the liquid pool. The composite heat dissipation water-cooling-free laser has the advantages of being simple in structure, light, easy to carry, good in heat dissipation effect, high in stability and the like.

Description

technical field [0001] The invention relates to the field of lasers, in particular to a composite heat-dissipating non-water-cooled laser. Background technique [0002] Existing water-free fiber lasers are widely used in industrial cutting, welding, mobile obstacle removal and other fields. With the development of water-free fiber lasers, the requirements for portability and light weight are getting higher and higher. Therefore, strict Limit its size, weight, energy consumption and other parameters. [0003] In the existing water-free fiber lasers, the laser diode often has a phenomenon that the wavelength drifts with the change of temperature due to problems such as insufficient heat dissipation and waste heat enrichment, so that the central wavelength does not match the main absorption peak of the gain medium, resulting in a decrease in absorption efficiency. The output power of the laser is reduced and it is difficult to meet the requirements of use. Therefore, the heat ...

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Problems solved by technology

[0003] In the existing water-free fiber lasers, the laser diode often has a phenomenon that the wavelength drifts with the change of temperature due to problems such as insufficient heat dissipation and waste heat enrichment, so that the central wavelength does not match the main absorption peak of the gain medium, resulting in a decrease in absorption efficiency. The output power of the laser is reduced and it is difficult to meet the requirements of use. Therefore, the heat dissipation of the laser is facing a great challenge

[0004] At present, the heat dissipation solutions for water-free fiber lasers are mainly divided into two categories: air-cooled heat dissipation and compressor refrigerant system refrigeration. Although air-cooled heat dissipation is low in cost and simple in structure, its temperature control range is limited, it is greatly affected by the working environment, and the temperature control accuracy is difficult. Grasp; although the compressor refrigerant system has the advantages of high temperature control accuracy, high energy efficiency ratio, timely heat dissipation response and good universality, it takes up a lot of space, is heavy, and works without interruption, resulting in short service life and inconvenient maintenance.

Therefore, the above two single heat dissipation methods can only be satisfied with the heat dissipation of low-power non-water-cooled lasers, and the above two single heat dissipation methods for high-power lasers seem powerless

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