Photonics Industries offers two very distinct versions of a tunable wavelength laser, the OPO series and the TU series. The OPO series is the first commercially available Optical Parametric Oscillator to produce pulse rates at a high repetition rate of up to 50 kHz. It is available in two models with a wavelength ranging from 1.5 um to 3.4 um. The TU series uses a Ti:Sapphire crystal in order to produce a wavelength ranging from 193 nm to 960 nm depending on the specifications and model.