Optics

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.

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.

Distributor of IR pyroelectric, thermopile, PbS and PbSe, and LED detectors; UV detectors; VIS detectors. IR and VIS laser diodes and diode modules. Signal recovery amplifiers. UV through IR filters, metal mirrors, and other optoelectronic components. NDIR, laser, and electrochemical gas and flame detection modules. Spectroscopy systems. SiPMs.

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.

Producer of retrofit parts and components for a variety of YAG laser systems. Manufacturer of lamp- and diode-pumped laser sources for OEMs and system integrators. Dual- and three-axis scanning systems for YAG and CO2 wavelengths. ISO 9001 certified.

Supplier of high-power DPSS lasers and direct diode lasers in the wavelength range of 2 to 5 microns. Provides customized solutions from single laser units to developments based on customer specifications and requirements of complete devices and laser machines for medical, industrial, and scientific markets.