Homemade Q-Switch for Solid State Lasers

Re:Homemade Q-Switch for Solid State Lasers by 01100011 on Tuesday November 10, 2020 @08:20AM (#25045612)

You can obtain a Q-Switched laser off ebay for around $600 by purchasing one of the cheap "tattoo removal" machines. Not a bad price I think. Q-Switching is cool, but isn't fast enough to produce the higher powers available from a mode-locked laser. I'm looking forward to when a DIYer can put together a mode-locked fiber laser at home. That opens up some crazy applications(i.e. particle accelerator).

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Re:Homemade Q-Switch for Solid State Lasers by monoideism on Tuesday November 10, 2020 @08:59AM (#25045952)

Safety aside, I wonder if those cheap tattoo removers work (I have no tattoos, just curious).

Anyone tried one to remove tattoos?

Edit: clarified that I'm asking specifically about its performance as a tattoo remover.

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Re:Homemade Q-Switch for Solid State Lasers by Zenst on Tuesday November 10, 2020 @09:40AM (#25046438)

Oh yeas, https://www.youtube.com/watch?v=-BeTq99LqUo will cover your curiosity safely

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Re:Homemade Q-Switch for Solid State Lasers by monoideism on Tuesday November 10, 2020 @10:06AM (#25046746)

Thanks, yeah. Looks like it would work. If you're light-skinned. Otherwise, it looks like a big burn hazard.

Wow.

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Re:Homemade Q-Switch for Solid State Lasers by abdullahkhalids on Tuesday November 10, 2020 @12:04PM (#25048177)

What sort of particle accelerator are you talking about? Which particle, what energy?

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Re:Homemade Q-Switch for Solid State Lasers by 01100011 on Tuesday November 10, 2020 @02:08PM (#25050059)

I'm be happy to move some electrons above the nuclear binding energy(~6MeV). Not sure about specifics, but picojoule laser driven particle accelerators can generate MeV+ energies in some very small spaces.

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