optical fiber

noun

: a single fiber-optic strand

Examples of optical fiber in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The plan is to use Leo for on-site internet access since the events are often based in rural and remote areas without access to optical fiber. Michael Kan, PC Magazine, 20 Apr. 2026 Robotic positioners precisely line up optical fibers, and 10 spectrographs collect light and split it into separate colors to determine the position, velocity, and chemical composition of each object. ArsTechnica, 15 Apr. 2026 Lumentum’s technology helps convert electrical signals into light, and Corning makes the optical fiber that transmits the light across the data center. Jeff Marks, CNBC, 10 Apr. 2026 Hal Nelson, Corning executive vice president and chief operating officer, emphasized that Corning invented the first low-loss optical fiber more than 50 years ago, which revolutionized telecommunications. Charlotte Observer, 31 Mar. 2026 See All Example Sentences for optical fiber

Word History

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of optical fiber was in 1962

Browse Nearby Words

Cite this Entry

“Optical fiber.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optical%20fiber. Accessed 24 Apr. 2026.

Kids Definition

optical fiber

noun
: a single fiber-optic strand

Medical Definition

optical fiber

noun
: a single fiber-optic strand
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster