Optical Components

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

Standard and custom photodetectors and high-quality VIS and IR LEDs. Our advanced performance sensors operate from the extreme ultraviolet (UV) to the mid-infrared (mid-IR). Photodetectors provide high-energy particle, electron, x-ray, and UV detection; plus excellent mid-IR sensitivity to discriminate gases, detect heat, sparks, and flames.

Designs and manufactures IR detectors for the 0.5 to 24 micron range. Products include InGaAs, Ext-InGaAs, InAs, InSb, PC&PV HgCdTe detectors, linear and 2D arrays with a wide range of detector cooling options for defense, security/safety, chemical and biological detection, semiconductor inspection, life science, and spectroscopy markets.