Coherent 

Coherent is a US-based photonics and materials technology company specializing in communications components. The firm produces an extensive portfolio of photonic technologies, including transceivers, semiconductor lasers, and optical components for data center and telecommunications applications. Coherent plays a significant role in AI infrastructure by supplying high-speed optical connectivity that enables less power-hungry, lower-temperature data transmission within and between hyperscale data centers. The firm owns integrated manufacturing capabilities in several photonic substrates, including indium phosphide. Beyond optical data networking, Coherent serves industrial markets with lasers, materials for semiconductor and automotive production, and other precision applications.