Infinera Corporation is a San Jose, California-based vertically integrated manufacturer of Wavelength division multiplexing-based packet optical transmission equipment and IP transport technologies for the telecommunications service provider market. It was a pioneer in designing and manufacturing of large-scale photonic integrated circuits. The company sold hardware and software networking options for Tier 1 carrier, Internet content provider, cable operator, government, and enterprise networks. In June 2024, Nokia acquired Infinera for $2.3 billion. Wikipedia