Broadband | Definition & Facts | Britannica (original) (raw)

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External Websites

• NASA - What Are the Spectrum Band Designators and Bandwidths?
• Arizona State University - Department of physics - The origin of the broadband luminescence and the effect of nitrogen doping on the optical properties of diamond films
• Engineering LibreTexts - Broadband
• Lifewire - What Is Broadband?
• The University of Texas at Austin - Moody College of Communication - Broadband-What is it?

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Last Updated: Oct 4, 2024• Article History

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broadband, term describing the radiation from a source that produces a broad, continuous spectrum of frequencies (contrasted with a laser, which produces a single frequency or very narrow range of frequencies). A typical broadband-light source that can be used for either emission or absorption spectroscopy is a metal filament heated to a high temperature, such as a tungsten lightbulb. Sunlight is also broadband radiation. In the context of Internet access, the term broadband has come to mean Internet speeds faster than those that could be achieved through dial-up. See also broadband technology.

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Erik Gregersen.