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.
Those numbers indicate very efficient light transfer into standard 50-micrometer multimode optical fibers. Aamir Khollam, Interesting Engineering, 11 Mar. 2026 There could be more upside in this stock ahead as hyperscalers race to secure their optical fiber and cable supplies for their data centers. Jeff Marks, CNBC, 17 Feb. 2026 The protein microscope combines a mass spectrometer with laser sampling through a sharpened optical fiber to produce images and molecular analysis of living samples at a resolution of 100 nanometers, which is 30 times more powerful than optical microscopes. Adia Harvey Wingfield, Forbes.com, 30 Jan. 2026 Corning will supply optical fiber and cable to help build out data centers for Meta, enough that Corning is expanding its optical-fiber manufacturing facility in Hickory, North Carolina. Stan Choe, Fortune, 27 Jan. 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 16 Mar. 2026.

Kids Definition

optical fiber

noun
: a single fiber-optic strand

Medical Definition

optical fiber

noun
: a single fiber-optic strand
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