At present, the domestic market for small and medium-power RF excited waveguide CO lasers is still mainly imported, and a few companies have also carried out product development, but all have problems such as unstable laser output, low photoelectric conversion efficiency, and more complicated structure. Based on the current industrial manufacturing technology, we have optimized the design of the device structure, and by designing an integrated internal and external heat dissipation system, we have achieved the goals of reducing the temperature of the working gas, improving the stability of the laser output and the photoelectric conversion efficiency. This design has low manufacturing cost, convenient processing, suitable for mass production, and is expected to replace similar imported products. It has obtained the national utility model patent.
The overall design of the new device The new structure we designed includes the laser cavity, the inductor placed in the laser cavity, the electrode on the metal plate connected under the inductor, the metal plate connected under the electrode on the metal plate, and the one connected under the metal plate Lower electrode. The metal plate includes more than two sub-metal plates, and a discharge area is provided between the sub-metal plates. The part of the laser cavity except the inductance, the electrode on the metal plate, the metal plate, the lower electrode on the metal plate, and the discharge area is a closed gas storage chamber. The gas storage chamber is a gas that can discharge and emit laser light. The special feature is that a circulating water cooling channel is provided in the cavity wall of the laser cavity at the upper and lower four corners outside the gas storage chamber, and heat dissipation fins are provided on the outer side wall of the laser cavity. When working, one is to radiate part of the heat of the laser working gas directly through the heat sink; the second is to effectively absorb, conduct and dissipate the heat generated by the working gas through the internal water cooling circulation system of the laser, achieving high heat dissipation The effect is to reduce and stabilize the working gas temperature, improve the working characteristics of the laser, and increase and stabilize the output power and working performance of the laser. The design of the external heat dissipation system The heat dissipation system of the laser has a great influence on improving the energy conversion efficiency of the laser. During the operation of the laser device, if the heat generated by the working gas can be removed in time, the temperature of the working gas can be quickly stabilized In order to obtain efficient RF electro-optical conversion efficiency, improve the laser and stabilize the laser output power.
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