noun
optical cable; optical fibre
Technical term for a cable that transmits light signals, used in telecommunications and networking.
このビルには光ケーブルが敷設されている。
This building is equipped with optical cables.
光ファイバー refers specifically to the optical fibre itself, while 光ケーブル often implies the complete cable assembly including protective layers.
Compound of 光 (ひかり, 'light') and ケーブル ('cable'), a straightforward technical term.