Co2 Laser Beam Width

Let z 1 and z 2 are the distances along the laser axis from the end of the laser to points 1 and 2.

Co2 laser beam width.

But to maximize the power and clarity of your laser cutting and engraving the laser beam spot size has to be clean small and as round as the laws of physics will allow. This video teaches you how to adjust the laser beam. If you have the camera option then look at the target on your computer. If we consider the ideal case of a gaussian beam the beam width or radius w along the propagation axis z is defined by the following equation.

This probably seems too good to be true. The co2 laser produces a beam of infrared light with the principal wavelength bands centering on 9 6 and 10 6 micrometers. Turn on the co2 laser and adjust the laser power so that the laser beam is visible and not too bright on the side viewport. Examine the location of the raw co2 laser beam in relation to the cross hairs.

Carbon dioxide co 2 lasers use the energy state transitions between vibrational and rotational states of co 2 molecules to emit at long ir about 10 µm wavelengths. The power density of a tightly focused industrial laser can be quite high. Insert the mahoney beam visualization tool into the first beam bender. They are also quite efficient.

Things have changed however with the introduction of spiricon s new beamwatch which measures laser beam width and focal length of any laser beam without attenuation. Laser tubes producing an out of round or oval shaped beam will degrade the cutting and engraving quality substantially. Carbon dioxide lasers are the highest power continuous wave lasers that are currently available. How to make laser beam alignment.

When you change mirrors len laser tube laser beam path route may go in misalignment and not straight. Note that in the example we chose znse as our lens material and meniscus as its shape good for co 2. The ratio of output power to pump power can be as large as 20. The divergence of a laser beam can be calculated if the beam diameter d 1 and d 2 at two separate distances are known.

Where w 0 is the beam waist the smallest radius of the gaussian beam and z r is the rayleigh length. These lasers can maintain continuous and very high levels of power and are typically used in cutting welding etching and marking applications. When a laser beam propagates along its optical path its diameter is continually changing. Usually divergence angle is taken as the full angle of opening of the beam.

Therefore if our laser beam is 6 mm wide and we use a 6 mm diameter 6 mm focal length zese meniscus lens not very common the beam could measure 0 1 mm 100 micron in diameter.