Laser laser devices. The question of just how to assign credit for inventing the laser remains unresolved by historians. On May 16, 1960, Theodore H. Maiman operated the first functioning laser at Hughes Research Laboratories, Malibu, California, ahead of several research teams, including those of Townes, at Columbia University, Arthur Schawlow, at Bell Labs, and Gould, at the TRG (Technical Research Group) company. Maiman's functional laser used a solid-state flashlamp-pumped synthetic ruby crystal to produce red laser light, at 694 nanometers wavelength; however, the device only was capable of pulsed operation, because of its three-level pumping design scheme. Later that year,
Laser guided and stabalized arc welding Laser guided and stabalized arc welding Laser guided and stabilized welding (LGS-welding) is a process in which a laser beam irradiates an electrical heated plasma arc to set a path of increased conductivity. Therefore, the arc´s energy can be spatial directed and the plasma burns more stable. The process must be destincted from laser-hybrid welding, since only low power laser energy of a couple hundred watts is used and the laser does not contribute significantly to the welding process in terms of energy input. The principle of Laser enhanced welding is based on the interaction between the electrical arc and