Coherent makes optical and laser components used in industrial manufacturing, telecommunications networks, life sciences instruments and semiconductor equipment, spanning a range of end markets that share a common need for precision light-based technology. Its telecom and data center optical components help move data through fiber optic networks, a business that has benefited from the same AI-driven data center buildout increasing demand for other optical component makers like Lumentum. Coherent's industrial laser products are used in manufacturing processes like cutting, welding and marking, giving the company a separate revenue stream tied to industrial production activity rather than data center spending. The company was formed through a merger between the original Coherent and II-VI, combining two laser and optical component makers into a broader combined portfolio spanning more end markets than either predecessor covered alone.