Vogel, A.; Venugopalan, V. (2003). "Mechanisms of pulsed laser ablation of biological tissues". Chem. Rev. 103 (2): 577–644. doi: 10.1021/cr010379n. PMID 12580643. Now that you’ve seen the models and know what they’re used for, it’s time to decide which CO2 laser cutter to buy.

Laser tubes produced by SPT have a power below 80W and their lifetime is no more than 3000 hours (that is not a lot at all).

Spectral Lines

Storage and Transportation Requirements:When storing and transporting the CO 2 Laser tube, please drain the cooling liquid and cover the tube ends with dustproof plastic bags. For storage, the required environmental temperature is 2-40℃ and the humidity ranges from 10-60%. Stable Laser Power: We use special equipment and US imported gas to allow this laser consumable to have a stable laser power, effectively slowing down the dissociation rate of working gas, and prolonging the service life. For example, the xTool P2 can support materials up to 118” long at a time if you have the conveyor feeder attachment, while the Glowforge Pro can support unlimited length. The common plastic poly (methyl methacrylate) (PMMA) absorbs IR light in the 2.8–25μm wavelength band, so CO 2 lasers have been used in recent years for fabricating microfluidic devices from it, with channel widths of a few hundred micrometers. [17]

A CO2 laser’s size and working area can vary a lot, and also has a big impact on price. The Flux Beamo is one of the smallest and cheapest machines, with a working area of just 300x210mm designed for small projects. Although direct excitation of CO 2 molecules into the upper laser level is possible, it has proven to be most efficient to use a resonant energy transfer from nitrogen molecules. Here, nitrogen molecules are excited by the electric discharge into a metastable vibrational level and transfer their excitation energy to the CO 2 molecules when colliding with them. The exited CO 2 molecules then largely participate in the laser transition. Helium serves both to depopulate the lower laser level and to remove the heat. Other constituents such as hydrogen or water vapor can help (particularly in sealed-tube lasers) to reoxidize carbon monoxide (CO, formed in the discharge) to carbon dioxide. Figure1: Schematic setup of a sealed-tube carbon dioxide laser. The gas tube has Brewster windows and is water-cooled. Spectral Lines Good Beam Mode: The CO2 laser tube can achieve a TEM00 mode above 95%, and features a laser spot size ranging from 3-5mm. and/or xenon (Xe), with the remainder being helium (He). [ citation needed] A different mixture is used in a flow-through laser, where CO This allows you to produce extremely accurate engravings of intricate and complex designs, such as photos, portraits, and other types of laser art.It also has optimized features like water cooling and an air compressor, which not only means it works for longer, but it also means it’s safer and boasts the precision of up to 1/1000 of an inch. Source: YouTube The first thing to consider is your experience. If you’re new to the game of CNC machines, regardless of how experienced you are as an engraver or carver, then you’ll want an entry-level laser cutter. These will be the easiest to use and often the cheapest option available and ensure you’re not out of thousands if you make a mistake while learning. These beams are amplified using mirrors to concentrate the beam, resulting in a powerful laser that can cut and engrave a variety of materials. The gas mixture is typically made up of carbon dioxide, hydrogen, nitrogen, and helium.

How Long Does a Laser Tube Last – Image of fitted glass CO2 laser tube The problem with Grade B Tubes. Because the laser transitions are actually on vibration-rotation bands of a linear triatomic molecule, the rotational structure of the P and R bands can be selected by a tuning element in the laser cavity. Prisms are not practical as tuning elements because most media that transmit in the mid-infrared absorb or scatter some of the light, so the frequency tuning element is almost always a diffraction grating. By rotating the diffraction grating, a particular rotational line of the vibrational transition can be selected. The finest frequency selection may also be obtained through the use of an etalon. In practice, together with isotopic substitution, this means that a continuous comb of frequencies separated by around 1cm −1 (30GHz) can be used that extend from 880 to 1090cm −1. Such "line-tuneable" carbon-dioxide lasers [7] are principally of interest in research applications. The laser's output wavelength is affected by the particular isotopes contained in the carbon dioxide molecule, with heavier isotopes causing longer wavelength emission. [3] Applications [ edit ] A medical CO 2 laser Industrial (cutting and welding) [ edit ] The 510x300mm working area puts it in line with other high-quality CO2 lasers, and it also has a passthrough slot to support longer objects. Like the Gweike Cloud Basic 2, this model comes with a rotary attachment included. The laser lens inside the cavity is independently developed and designed by our company, and is produced by the II-VI Singapore factory in accordance with global optical standards. C. Fromentin et al., “Validation of non-equilibrium kinetics in CO 2–N 2 plasmas”, Plasma Sources Sci. Technol. 32, 054004 (2023); https://doi.org/10.1088/1361-6595/acce64

is a permissible temperature, but with it the radiance power decreases, and the resource of this expensive component is spent much faster. That is why laser tubes in laser machines must be equipped with coolant systems. Due to their high powers and high drive voltages, CO 2 lasers raise serious issues of laser safety. However, their long operation wavelength makes them relatively eye-safe at low intensities. CO 2 Laser Types High Power: The laser power is generally above 70W, and the power of the 1,600mm CL series CO2 laser tube can exceed 100W. Model With a small light spot, stable performance and service life of 6,000 hours, EFR's 200W CO 2 Laser tube can be applied to different laser machining equipment, including laser engraving machines, laser cutting machines, laser marking machines and laser die cutting machines.

A CO2 laser cutter directs a focused beam of infrared laser light produced by exciting carbon dioxide gas to precisely cut or engrave materials like wood, plastic, acrylics, glass, and leather. C. K. N. Patel, “Interpretation of CO 2 optical maser experiments”, Phys. Rev. Lett. 12 (21), 588 (1964); https://doi.org/10.1103/PhysRevLett.12.588 The laser wavelength can be tuned by altering the isotopic ratio of the carbon and oxygen atoms comprising the CO The operating temperature of the chiller is set at 18° C. It should be understood that this temperature is measured inside the chiller water tank, and is valid in the case of a fully operational pump. If the pump fails, the chiller will beep to inform you to replace it. You must not use the tube if the chiller pump is defective. The laser tube is one of the main units of any Со2 laser machine. The radiance wavelength of a Со2 tube is 10600 nm (10.6 μm). Laser generation, which makes it possible to cut or engrave the material you choose, takes place inside the laser tube. Usually, tubes have the life-time declared by their manufacturers. It’s something around 1 000 – 10 000 hours. It is less than a diode or a solid-state laser.

Co2 Laser Tubes Lifetime

The ML-series laser tubes form the power engine of our own VULCAN series laser cutting & engraving machines shown in the Laser Systems section. The CO 2 laser ( carbon dioxide laser) is a molecular gas laser with emission in the long-wavelength infrared spectral region. It is based on a gas mixture as the gain medium, which contains carbon dioxide (CO 2), helium (He), nitrogen (N 2), and possibly some hydrogen (H 2), oxygen (O 2), water vapor and/or xenon (Xe). Such a laser is electrically pumped via an electrical gas discharge, which can be operated with DC current, with AC current (e.g. 20–50kHz) or in the radio frequency (RF) domain. As we enter the high-end spectrum, you’ll start to see more optimized features like in the FSL Muse Core. EFR’s F series CO2 laser tube is an upgraded laser machine accessory equipped with a German discharge tube that has been galvanized with a catalyst. Its laser power reaches up to 200W, which is 30% more than traditional laser tubes. This cost effective classic CO2 laser tube has a compact size, stable laser power, high-quality laser beam, great beam mode, a small light spot, a fast speed and a service life of up to 6,000 hours.