Key Photonics offers wide product portfolio of optical systems. Optical systems includes: F-theta lenses, compact and zoom beam expanders, Gauss-to-top hat beam shaping lens, simple telecope kit. Various variable attenuators for linearly polarized laser beam for Nd:YAG Laser applications, femtosecond applications and high power femtosecond applications can be offered. Precision spatial filters, precision pinholes, variable wheels attenuators, air-cooled and water-cooled beam dumps are available.