Beamsplitters

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.

Precision optical components, polarization optics, crystals, assemblies, megapixel CCTV lenses, 20 MP machine vision lenses, and optical system solutions. Advanced measurement systems include Prism Master, spheric lens measurement systems, interferometers, and spectrophotometers. ISO 9001, IATF/TS16949, ISO 14001, and ISO 13485 certified with SGS.

Manufactures standard and custom polarization control components and systems including polarizers, retarders, LC devices, Pockels cells, polarimeters, and SLMs. Applications are in optogenetics, aerospace, defense, medical imaging and analysis, data storage, polarimetry, semiconductor inspection and processing, astronomy, and more.

Design and manufacture advanced custom thin-film components for OEM volume applications. Products include linear variable filters, variable dichroics, high-quality fluorescence filter sets, filters and dichroics, and filter sets for point-of-care instruments, beamsplitter cubes, and many other components.

PM fiber components; patch cords, splitters/combiners, polarizers, isolators, fused/PLCS couplers, test equipment; PER meter, polarized sources, PDL emulators, polarization controllers/analyzers, digital/motor driven/manual variable attenuators, laser/laser diode to fiber delivery systems; collimators/focusers, polarization entangled photon sources.

Manufacturer of optical filters and coatings for many demanding applications such as: biomedical instruments and imaging systems, fluorescence microscopy, aerospace, surveillance, machine vision, industrial inspection such as semiconductors, food and lumber, multispectral imaging, and chemical analysis. Employee-owned.