Coherent (formerly known as II-VI Incorporated) is a manufacturer of optical materials and semiconductors. It offers transceivers, coherent and advanced optics, laser optics, polycrystalline materials manufacturing, advanced ceramic and metal-matrix composites, laser devices and systems, precision optical assemblies, wide bandgap semiconductors, optoelectronic, and radio frequency (RF) devices, etc. The company serves the optivcal communications, industrial, aerospace and defense, semiconductor, life sciences, consumer electronics, and automotive markets.