REO has introduced a range of optics offering multiwavelength operation for military target designation and rangefinding applications. The components deliver a combination of high reflectivity and transmission at multiple wavelength bands (808, 1064 and 1570 nm) while maintaining good wavefront quality in the reflected beam. The optics can accommodate high-reflection or high-transmission properties in the 3- to 5-μm spectral band, enabling common-aperture forward-looking infrared applications. The devices provide a typical high laser damage threshold of >40 J/cm2 for a 20-ns pulse at 1064 nm and exhibit good environmental stability. The optics can be fabricated on a wide range of substrates, including fused silica, CaF2, ZnS, ZnSe, silicon and sapphire, in sizes ranging from 0.5 to 12 in.