II-VI Incorporated develops, manufactures, and markets engineered materials, and optoelectronic components and devices worldwide. The company operates through three segments: II-VI Laser Solutions, II-VI Photonics, and II-VI Performance Products. The II-VI Laser Solutions segment offers optical and electro-optical components and materials used in high-power CO2 lasers; fiber-delivered beam delivery systems, and processing tools and direct diode lasers for industrial lasers; and compound semiconductor epitaxial and gallium arsenide wafers. The II-VI Photonics segment provides crystal materials, optics, microchip lasers, and optoelectronic modules for use in optical communication networks and other consumer, life sciences, and commercial applications. It also offers pump lasers, optical isolators, and optical amplifiers and micro-optics for optical amplifiers for terrestrial and submarine applications; and direct-diode laser modules, subsystems, and systems, as well as super-hard materials processing laser systems. The II-VI Performance Products segment provides infrared optical components and optical assemblies for aerospace and defense, medical, and commercial laser imaging applications; and silicon carbide engineered materials for thermoelectric devices and subsystems for silicon carbide applications. The company serves OEMs, laser end-users, system integrators of high-power lasers, manufacturers of equipment and devices for the industrial, optical communications, aerospace and defense, semiconductor, medical and life science markets, consumers, the U.S. government prime contractors, various U.S. government agencies, and thermoelectric integrators. II-VI Incorporated has a strategic partnership agreement with LITE-ON Technology Corporation to partner in the volume manufacturing and commercialization of packaged semiconductor lasers for mass-market light detection and ranging. The company was founded in 1971 and is headquartered in Saxonburg, Pennsylvania.