Ciena is a telecommunications networking company that specializes in providing technology and services for high-speed data transmission. Founded in 1992 and headquartered in Hanover, Maryland, Ciena develops optical and packet networking solutions that help service providers and enterprises improve their network performance and efficiency. The company is known for its innovations in wavelength division multiplexing (WDM) and software-defined networking (SDN). Ciena's products enable faster and more reliable internet connections, supporting the growing demand for data and bandwidth in various industries, including cloud computing and 5G telecommunications.