PacketLight Networks (פקטלייט נטוורקס בע"מ) is a developer and manufacturer of dense wavelength division multiplexing and optical transport network equipment. It offers mux-ponders, transponders, reconfigurable optical add-drop multiplexers, optical amplifiers, and fiber diagnostic tools. The company provides its products for the transport of data, storage, voice, and video over data center interconnect, metro, and long-haul fiber optic networks.