LAYERTEC produces enhanced laser optics and other high quality optical components which are mostly used for high power and critical laser application in the wavelength region between 193 nm and 4 µm. Main products are:

• High – power - coatings for the NIR (e.g. for Nd:YAG-, Ho-YAG and Er:YAG-lasers)
• Femtosecond laser mirrors with exactly determined phase properties
  (low GVD or negative GVD and R>99.9%)
• Steep edge filters, e.g. HR 1030nm >99.9% + R(980nm)<1% with highest stability against changes of ambient temperature and humidity and high laser damage thresholds
• Low loss laser mirrors (R>99.98% in the VIS and NIR)
• Coatings on laser- and nonlinear optical crystals and
• Metallic mirrors and coatings (Au, Ag, Al, Cr)
• Coatings for all excimer laser wavelengths including 157nm
• Coatings for the higher harmonics of Nd/Yb-YAG/YLF/glass-lasers and Ti:Sapphire lasers

The precision optics facility of LAYERTEC produces plane and spherically curved mirror substrates, lenses and prisms of fused silica, optical glasses like BK7 and SF10 and some crystalline materials, e.g. calcium fluoride. Especially the polishing of fused silica and calcium fluoride has been optimized over the recent years so that we are able to offer substrates of both materials with rms-roughnesses lower than 0.15nm.

Components for the UV are coated by evaporation techniques. Coatings for the VIS and NIR are mostly produced by magnetron sputtering. This special coating process yields amorphous layers with a very high packing density resulting in lowest straylight losses and a high thermal and climatical stability of the optical parameters. Furthermore, the coatings are optimized for high laser damage thresholds. LAYERTEC has developed magnetron sputtering for optical coatings from a laboratory technique to a very efficient industrial process while the outstanding properties of the coatings, especially in the VIS and NIR spectral range, were preserved.Besides the development of efficient coating plants LAYERTEC has preserved its capabilities for flexible production and the development of prototypes and OEM components. LAYERTEC works for universities, research institutes and laser manufacturers worldwide.