Definitions

fiber optics

NOUN

light transmitted through fibers

Synonyms

STRONGEST

optical fiber

WEAK

catoptrics dioptrics fibre optics glass fiber

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Connectivity has become the latest frontier amid the AI infrastructure buildout and fiber optics are replacing copper for long-distance and rack-to-rack interconnects in AI data centers.

From The Wall Street Journal • Jun. 2, 2026

In the latest study, scientists used optogenetics, a technique that uses fiber optics and light to activate specific brain cells.

From Science Daily • May 15, 2026

The company’s fiber optics business has been one of its fastest-growing.

From The Wall Street Journal • Apr. 28, 2026

That reflects higher capital expenditures: The company has been accelerating its spending on fiber optics, which deliver high-speed internet hookups to U.S. households.

From Barron's • Apr. 23, 2026

Ashima had never heard of Boston, or of fiber optics.

From "The Namesake" by Jhumpa Lahiri