Coatings & Materials

CASTECH is a global leader in nonlinear optical crystals, laser crystals, precision optics, and laser components for laser applications, optical communications, biomedical VR/AR, and lidar. With ISO 9001 and IAFT 16949 quality management system, we consistently enable our customers from prototype to mass production stage.

PPD provides custom laser optics, assemblies, and IBS coatings for prototype, research, and OEM applications. PPDs precision fabrication, dielectric thin-film coatings, and epoxy-free assembly processes enable total optics solutions. Products include PBS cubes, high power laser mirrors, super-polished lenses, prisms, polarizers, and Brewster windows.

Manufacturer of air-spaced and solid etalons, ultrahigh damage threshold laser optics and interferometer optics. Coatings from UV to near-IR. Optomechanical systems.

Specializes in high-performance fiber lasers and fiber amplifiers operating over a wide range of wavelengths and output powers. Applications include materials processing, telecommunications, and scientific research.

Precision optical glass: strip, blanks, pressings, polished balls, near-UV transmitting i-Line glass, ceramic substrates, CaF2, UV/IR materials, quartz, fused silica (standard/excimer grade), Nanoceram. Ohara CCZ ultralow expansion (excellent CTE uniformity, blank form, to 1.8 m diam). Double-side polished substrates (low surface roughness, excellent flatness).