fibre optics
noun /ˌfaɪbər ˈɒptɪks/
/ˌfaɪbər ˈɑːptɪks/
(US English fiber optics)
[uncountable]- the use of thin fibres of glass, etc. for sending information in the form of light signals
- The use of fibre optics has served to increase the volume and speed of data transmission.