Optical Components

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.

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.

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.

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.

As a matured and professional global supplier with a sophisticated engineering background, we specialize in the manufacturing and sales of electro-optics, including laser crystals and components, laser mirrors, nonlinear crystals, wave plates, polarizers, optical windows and lenses, IR camera lens assemblies/optical filters, scintillators, and more.

Manufacturer of precision optical components and high-power laser coatings from UV to IR. Stock and custom optics: lenses, beamsplitters, filters, windows, mirrors, wave plates, large wedges, prisms, and many more. In-house custom coatings: AR, high reflection, dichroic, and polarizing. Optics from 4 mm to 16 inches.

Manufacturer of high quality optical passive components. DK Photonics produces a large array of fiber optic components such as 1064 nm high power isolator, MM pump combiner, pump laser protector, used for high power fiber laser applications. Also offers PM fiber pump combiner for ultrafast fiber laser applications.

Produces custom, high-damage threshold, long lifetime laser optics including mirrors, polarizers, beamsplitters, and windows. Specializes in coatings from 193 nm to 2 microns. Materials include CaF2, MgF2, FS, and BK7. Supplier to linear accelerators using ultrafast, excimer, and solid-state laser systems worldwide.

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, automation, multispectral imaging, chemical analysis. Custom and catalog optical filters. 100-percent employee-owned.