Blue and violet diode-pumped solid state (DPSS) laser modules

Blue laser pointers, which became accessible about 2006, accept the aforementioned basal architecture as DPSS blooming lasers. They a lot of frequently afford ablaze at 473 nm (sometimes appear as 474 nm), which is produced by abundance acceleration of 946 nm laser radiation from a diode-pumped Nd:YAG or Nd:YVO4 crystal. Neodymium-doped crystals usually aftermath a arch amicableness of 1064 nm, but with the able cogitating blanket mirrors can be aswell bogus to lase at added non-principal neodymium wavelengths, such as the 946 nm alteration acclimated in blue-laser applications. For top achievement ability BBO crystals are acclimated as abundance doublers; for lower powers, KTP is used. Achievement admiral accessible are up to 1000 mW, but this usually is the absolute achievement including the infrared. As with blooming DPSS lasers, use of a 1000 mW IR diode usually after-effects in about 300 mW of arresting dejected light, even if the laser is appear at 1000 mW power.

Blue lasers can aswell be bogus anon with InGaN semiconductors, which aftermath dejected ablaze after frequency-doubling. 445 nm dejected laser diodes are currently accessible on the accessible market. The accessories are brighter than the 405 nm laser diodes, back the best amicableness is afterpiece to the aiguille acuteness of the animal eye. Commercial accessories like laser projectors accept apprenticed down the prices on these diodes, as of March 2011.

Violet lasers may be complete anon with GaN (gallium nitride) semiconductors, as noted.7 However, a few higher-powered (120 mW) 404–405 nm "violet" laser pointers accept become accessible which are not based on GaN, but aswell use DPSS frequency-doubler technology starting from 1 watt 808 nm gallium arsenide bittersweet diode lasers getting anon doubled, after a longer-wave neodymium laser average amid diode laser and doubler-crystal. As with all top powered lasers, such accessories are able to pop balloons and ablaze matches.