Laser types with distinct laser lines are shown above the wavelength bar, while below are shown lasers that can emit in a wavelength range. Full lines or areas mean CW emission, dotted mean pulsed emission. The height of the line gives an indication of the maximal power/pulse energy commercially available. For the Ar⁺-Kr⁺ laser only the most important lines are labeled, the many other are shown only by a short tick, independently of their power. Note that the wavelength axis is highly distorted: up to 1000 nm it is linear in the wavelength, from then on logarithmic (with 300 px per decade up to 10 µm, then 30 px per decade). This is necessary for a good presentation of the visible region. For semiconductor lasers a solid fill shows the powers achievable with a single emitter, while horizontal lines indicate bars or stacks of bars.

Gas lasers   Excimer laser   Noble gas laser   Metal vapor laser   Chemical laser   Molecular gas laser   Far infrared laser

Solid state lasers   Lanthanides   Semiconductor laser   Transition metals   Organic dye in polymer host

Liquid lasers   Dyes

CW emission pulsed emission ≡≡≡ laser diode bars or stacks