Fiber laser

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Notion

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Science and technology

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What Wikipedia says

A fiber laser (or fibre laser in Commonwealth English) is a laser in which the active gain medium is an optical fiber doped with rare-earth elements such as erbium, ytterbium, neodymium, dysprosium, praseodymium, thulium and holmium.

Excerpt from the Wikipedia article “Fiber laser”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: MyNick, CC BY-SA 3.0, via Wikimedia Commons.