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Please copy/paste the following text to properly cite this HowStuffWorks article:

Weschler, Matthew. "How Lasers Work." 01 April 2000. HowStuffWorks.com. <http://science.howstuffworks.com/laser.htm> 22 November 2009.

Inside this Article

Exploring Light and Color: Laser Light

More Science Videos »

Three-Level Laser

Here's what happens in a real-life, three-level laser.

In the next section, you'll learn about the different types of lasers.

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Inside this Article

Three-Level Laser

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