Applications and Advantages of Carbon Dioxide Lasers

Carbon dioxide laser is a kind of laser with high continuous output power, which has been developed earlier and the commercial products are more mature, and has...

Nov 06,2023 | Daphne

Carbon dioxide laser is a kind of laser with high continuous output power, which has been developed earlier and the commercial products are more mature, and has been widely applied to various fields such as material processing,laserpecker compact laser engraver medical use, military weapons, environmental measurement and so on.

In the development and application of lasers, the production and application of CO2 lasers are earlier and more, as early as the late 1970s, there were direct imports of CO2 lasers from abroad, engaged in industrial processing and medical applications. From the end of the 80s, CO2 lasers were widely introduced and used in the field of material processing. In recent years, although CO2 laser processing equipment is becoming more popular,laserpecker 11 but the laser is after all a new tool, laser processing technology is also different from the traditional processing methods, so the industrial sector in the introduction of the use of CO2 lasers in the process, has encountered a variety of problems, causing a lot of trouble to many manufacturers.

Early imported and manufactured CO2 laser, are less than 200 watts of low-power laser. Mainly for the electronics industry (such as resistor manufacturing, IC signs), non-metal processing industry (bamboo and wood carving, clothing, shoes, jewelry manufacturing, etc.) and some medical and research units used.

The CO2 laser beam through a mask, focused on the IC or semiconductor components for the sign, the CO2 laser are mainly TEA pulsed. However, with the increasing speed and quality of mark processing and the rapid development of solid-state lasers, the recently introduced laser for mark processing has been gradually replaced by solid-state YAG lasers. The non-metallic material to be engraved is covered with a hollowed-out copper mold, and then a CO2 laser beam is used to make a rapid scan on the copper mold, and a complex pattern can be engraved on the material. Engraving objects for wood, acrylic, leather and paper, etc., in addition can also be applied to the carving of unique handicrafts, such as bamboo carving, cork relief, shell relief. In recent years has been transformed with sealed CO2 laser, directly to scanning galvanometer for a small amount of multi-variable gift engraving, in order to improve the added value of the product.

CO2 laser is a more important gas laser. This is because it has some outstanding advantages:

It has a relatively large power and high energy conversion efficiency. General closed-tube CO2 laser can have a few tens of watts of continuous output power, which is far more than other gas lasers, transverse flow type electric excitation CO2 laser can have hundreds of thousands of watts of continuous output. In addition transverse atmospheric pressure CO2 laser, from the pulse output energy and power have reached a high level, comparable to solid-state lasers.CO2 laser energy conversion efficiency of up to 30 ~ 40%, which also exceeds the general gas lasers.

It is the use of CO2 molecules of vibration - rotation of the energy level between the jump, there are relatively rich spectral lines, in the vicinity of 10 microns there are dozens of spectral lines of laser output. The high-pressure CO2 laser discovered in recent years can even achieve continuously tunable output from 9 to 10 microns.

Its output band happens to be the atmospheric window (i.e., the atmosphere has a high transmittance of this wavelength). In addition, it also has the advantages of high optical quality of the output beam, good coherence, narrow line width, stable operation. Therefore, it has many applications in the national economy and national defense, such as applications in processing (welding, cutting, punching, etc.), communications, radar, chemical analysis, laser-induced chemical reactions, surgery and so on.

Carbon dioxide laser application of lasers CO2 laser