Lasers & Laser Systems

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.

Specializes in the design and manufacture of advanced optical metrology instruments and systems, ultraprecise optical components and assemblies, and providing electro-optical design and manufacturing services.

Designs, develops, and manufactures a wide array of durable thin-film optical coatings in the UV, VIS, and IR (3 to 12 microns) region. Manufactures high-precision optical windows, spherical and aspherical lenses, wedges, prisms, and infrared domes in bulk volumes.

Specializes in laser information application fields. Products cover semiconductor lasers, fiber lasers, solid-state lasers and related laser application systems. Offers customized products and production services.

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 custom precision optical components, spectrometers, TEA CO2 lasers, and excimer lasers. Specializes in fluid jet polishing equipment, and laser systems. Specializes in the production of difficult, tight tolerance optical components, laser components and systems.

Designs and manufactures dynamic laser interferometers and optical profilers, and surface defect gauges. Applications include precision machined surfaces, optics, astronomy, aerospace, space-based telescopes, flexible electronics, automotive, and in-line production measurement.

Supplier of precision photomasks, microlithography, photomask tooling, contact printing, emulsion, chrome and see-through masks, laser written optical components, encoders, optical parts, mask design, precision cutting of glass or silicon, and CAD services. Fast turn services.

G&H provides design and manufacturing solutions to OEM customers around the world. We meet challenging specifications and offer long product lifetime and guaranteed performance in harsh environments. Our Group is comprised of three businesses: G&H Aerospace and Defense, G&H Industrial and Telecom, G&H Life Sciences and Biophotonics.

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.

Supplier of avalanche photodiodes and modules (Si, InGaAs), IR detectors (InGaAs, PbS, PbSe, pyroelectric), photon counting modules, laser diodes and modules (different wavelengths and power), pulsed laser diodes (905 and 1550 nm), laser diode drivers, laser optics, spatial light modulators, polarizers, UV LEDs and glass filters.

Diverse Optics manufactures custom precision polymer optic components and assemblies. Core processes include injection molding, SPDT, optomechanical design, metrology, assembly, bonding, and thin-film coating. Transforms optical systems from expensive, heavy, and complicated to commercially viable, lightweight, and simple.