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.

Optical devices supplier and manufacturer of acousto-optic modulators, acousto-optic frequency shifter, avalanche photodiodes, fiber coil and ASE source, couplers, isolator, circulator, FRM, WDM, narrow linewidth laser diode, semiconductor optical amplifier, EDFA, used for for fiber laser, sensor systems, and FOG.

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.