Table 2. Most important therapeutic lasers with their wavelengths .

HeNe laser	633nm	Gas laser
InGaAIP lasers	633-700nm	Semiconductor laser
GaAIAs lasers	780-890nm	Semiconductor laser
GaAs laser	904nm	Semiconductor laser
Defocused CO2 laser	10600nm	Gas laser
Defocused Ruby laser	694nm	Solid state laser
Defocused Nd:YAG laser	1064	Solid state laser