mode is an implemented result of the Alkras laser’s technology which uses the method of diffraction evolution into within the optical resonator with a combination of Alfa and Gamma RF plasma within the laser’s cavity of our transfer flow gas laser.”A” Mode is a modified “D” mode, which use advantages of TEM00 and “D” modes at the same time combination of TEM00 and TEM01* modes in the optimal proportions create “A” mode beam with a high Intensity concentric gradient on the sides (all around) and the high power density into the center as well.
For “A” Mode the optical Factor is M, which consume already about 90% of the Beam’s Energy at the Intensity level e-1.In the case of “A” Mode we use the Optical Magnification X1.5 or X2 which helps to reduce the focus spot size accordingly in 1.5 or 2 times.
All our High Speed Cutting records have been achieved with “A” mode for the wide range of the thickness materials from 1 mm and up to 12.7 mm and this mode should be taken as the most efficient and the optimal for Material Processing.
High Optical Quality of Output Beam and Stability at all Power Levels
“A” Mode: M<1.5
This advantage of “A” mode gives 20% more efficiency for the material processing as a cutting than TEM00 mode, keeping the minimal heat zone and very sharp edges.
“A” mode is a combination of TEM00 and TEM01* modes in optimal proportions, which allow to use almost 95% of the beam’s energy for cutting edge. In the case of traditional TEM00 mode only 75% may be used and the rest energy is dissipated in to the burning of the edges increasing heat zone.
In case of ordinary “D” mode it does not have much energy into the center of the beam for the high speed of the material penetration