Definition

Noun: A very thin, flexible strand of glass or transparent plastic that transmits light along its length. It functions as a waveguide, using total internal reflection to carry light signals over long distances with minimal loss. These fibers are often used in bundles to transmit images or data.

Usage

• Singular form: Refers to a single strand.
  • The core of an optical fiber is typically only a few micrometers in diameter.
• Plural form / Non-count usage: Often used to refer to the material or technology in general.
  • The new internet infrastructure is based on optical fiber.
  • The cables contain dozens of optical fibers.

Examples

• Telecommunications: "Modern high-speed internet connections rely on optical fiber to transmit data."
• Medical Imaging: "Doctors use bundles of optical fibers in endoscopes to see inside the human body."
• General Statement: "The signal travels through the optical fiber at nearly the speed of light."

Advanced Usage

• Technical Context: In physics and engineering, the term specifies the medium for guided light waves.
  • The pulse dispersion in the optical fiber was measured experimentally.
• As a Modifier: Used adjectivally to describe related components or systems (e.g., optical fiber cable, optical fiber network, optical fiber technology).

Variants and Related Words

• Fiber optic (adj): The adjectival form used to describe technology or cables that use optical fibers.
  • We installed a fiber optic cable to the building.
• Light guide: A more general synonym for any device that channels light, which can include optical fibers.
• Glass fiber: A broader term that can refer to fibers for insulation or reinforcement, not necessarily for light transmission.

Synonyms

• Light pipe (informal/technical)
• Waveguide (broader technical term for any structure that guides waves)

Related Phrases / Compounds

• Optical fiber cable: A protective casing containing one or more optical fibers.
• Optical fiber bundle: A collection of many optical fibers, often used for image transmission.
• Fiber-optic communication: The method of transmitting information using light pulses through optical fibers.

Noun

1. a very thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images