Ultra high precision etalons

Optical Surfaces is a supplier of Fabry-Perot etalons in a range of shapes and sizes up to 150mm in diameter with matching accuracies to lambda /300. Fabry Perot etalons are available from Optical Surfaces (OSL) in two basic forms, air-spaced or solid. Designed for use at customer-defined wavelengths within the range 190nm to about 2 microns, OSL etalons are supplied with wedge angles of 5 minutes of arc for smaller diameters, rising in steps to a wedge angle of 40 minutes of arc for diameters greater than 70mm. They are available as standard in materials including UV grade Silica and Germanium.