Interesting ruby build

Grab a cuppa, sit back and enjoy this video.

http://hackaday.com/2014/01/10/lazin...y/#more-112030

That ruby rod is huge! Ben has a a whole series of excellent videos. I've watched them all. His sputtering set-up is particularly interesting. Thanks for letting us know this latest video.

Interesting video. But I wanted to see him fire the laser.

Looking forward to seeing a beam out of this :)

Me too. All the recent uproar about class 4 lasers in the hands of hobbyists, but here's an article about building one with a ruby from Popular Science in 1964.

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Originally Posted by Eidetic

Me too. All the recent uproar about class 4 lasers in the hands of hobbyists, but here's an article about building one with a ruby from Popular Science in 1964.

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Woah! do you have a higher resolution picture of that?

although with a pulse rate of 1/ppm and wavelength of 694nm, they're not really a candidate for crowd scanning ;)

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Originally Posted by Eidetic

Me too. All the recent uproar about class 4 lasers in the hands of hobbyists, but here's an article about building one with a ruby from Popular Science in 1964.

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what would the output power and mrad be though

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Originally Posted by swamidog

although with a pulse rate of 1/ppm and wavelength of 694nm, they're not really a candidate for crowd scanning ;)

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But as an anti-heckler device it would be hard to beat, no?
(Note to all prodjallens watching, this is a joke, funny, joculosity, etc... Even if it isn't funny, don't do it.)

Here's a link to the article. http://blog.modernmechanix.com/build-your-own-laser/