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Build Your Own Laser

I know this will be exciting for all you laser loving people. This appeared in the a 1964 issue of Popular Science.

IT MAY sound like science fiction— but it’s really science fact: You can build a working ruby laser. It could be the most challenging—and rewarding— home-workshop project that you have ever tackled.

A ruby laser is a source of coherent light. All of the light waves in the pencil-thin, bright-red ruby laser beam are in phase—or in step—with each other. This extraordinary property of the laser beam—shared by no other light source—has spurred a world-wide search for practical uses.

http://blog.modernmechanix.com/2006/05/01/build-your-own-laser/

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