The laser is based on a phenomenon discovered during the past century, and laser technology became real and concrete at the beginning of the 1960s. In less than 50 years, it has become the basis for numerous applications that today have reached high levels of sophistication, including the laser soldering of electronics.
Laser background
By way of background, broadly speaking, by adopting appropriate materials and precautions that take advantage of certain laws of physics, it is possible to produce what is commonly designated as a laser beam—a well-defined electromagnetic wave.