Opco Laboratory Inc.’s Replication Process reproduces complex optics with high quality and repeatability. It transfers the profile of a precision optical surface from a master and creates a duplicate on a range of substrates, including glass, silicon carbide and ceramic, and metals such as beryllium, aluminum, titanium and stainless steel. The replicated optics are less expensive and often lighter than the master. The process produces a variety of ruled and holographic diffraction gratings, reflective and transmission holographic optical elements, dual-wavelength gratings, and plano and conic sections. Surface accuracy and radii are certified to customer specifications using an interferometric measuring system or a profilometer.