UV Lasers Overview
Ultraviolet (UV) lasers offer extremely high photon energy which opens up a wide range of applications which can’t be addressed by visible and infrared laser sources. The most common UV laser sources are the third and fourth harmonics on Nd: YAG providing 355 nm and 266 nm wavelengths respectively. It’s important to point out that while 355 nm and 266 nm are the most common UV laser wavelengths, there are also several other Nd: YAG lines that can be doubled and tripled to produce a wide variety of UV wavelengths. To achieve these higher order harmonics, the electric field density of the laser must be extremely high, as a result, these lasers are only available with q-switched lasers. Continuous wave (CW) UV laser diodes also available at 375 nm, with both single-mode and multi-mode beam profiles, and with either free space or fiber coupled outputs. OEM UV laser packages and UV laser modules are available for both ultraviolet laser diodes and q-switched UV lasers.