noun
optical communication; light-wave communication
Technical term for communication using light, such as fiber optics or free-space optical links.
光通信は高速なデータ伝送を可能にする。
Optical communication enables high-speed data transmission.
Refers specifically to the optical fiber medium, while 光通信 is the broader concept of communication using light.
Compound of 光 (ひかり, 'light') and 通信 (つうしん, 'communication').