GWU-Lasertechnik is a manufacturer of widely tunable laser systems as well as a sales and service organization for optical components and laser accessories. As a pioneer, GWU introduced the first commercial BBO Optical Parametric Oscillator (OPO) worldwide to the market in 1989. More than three decades later, based on its vast expertise in non-linear optics, GWU manufactures matured and industrial-grade, high-energy and ultrafast frequency conversion modules. Wavelengths from deep-UV to mid-IR can be covered seamlessly by rapid and precise tuning for a wide application range. Among many others, this especially includes photoacoustic imaging, laser spectroscopy and quantum optics. The broad portfolio is completed by laser crystals and non-linear crystals, as well as electro- and acousto-optical components. Due to its competence and superior service, GWU has established a broad base of satisfied customers in the industrial branch as well as in scientific research facilities worldwide.