Diode Lasers  Manufacturers, Traders, Suppliers

Diode lasers are so-called semiconductor lasers in which coherent light, i.e. all waves oscillate in the same direction, with the same frequency and phase, due to power-band-valence-band transitions and can therefore also be described as solid-state lasers or laser diodes. The energy can be supplied, for example, by electron beam excitation. So that the electrical energy is turned into the energy of coherent light radiation, we need a flux-polarized p-n junction. The diode laser is, however, somewhat more complex; more precisely, the semiconductor laser essentially consists of a sequence of thin layers with different widths, a semiconductor heterostructure that is p- or n-doped. Between the p-n junction is "the forbidden zone" which usually consists of compound semiconductors such as GaAs and InP, so-called mixed crystals of the elements Ga (gallium), As (arsenic), In (indium), phosphorus ( P ). This active layer of the"forbidden zone" later determines the color of the emitted light and is marked with Diode lasers are therefore characterized by extremely small dimensions, have a good efficiency and are operated at up to 10 GHz. Communication technology, range finders in measurement technology, in read heads for CD drives as a direct beam source, in the printing industry as well as in science and research. Diode lasers are also used in dentistry. Nearly 2/3 of dental lasers are diode lasers and are used, for example, to treat hypersensitive tooth surfaces.