Materion Corporation Order Sorting Filters

Order Sorting Filters (OSF’s) from Materion Barr Precision Optics & Thin Film Coatings made with interference filter coatings can be provided in several different forms; as a coated substrate, as a patterned filter, or as a linear variable filter. Depending upon customer requirements Longpass filter coatings, Bandpass filter coatings, and sometimes Shortpass filter coatings can be used in the design of OSF’s. Filter coatings are designed to provide high transmission over the spectral region(s) selected for detection in the customer’s grating-based system and to provide effective rejection over the wavelength ranges where the undesired diffraction orders exist.