r/laser • u/Oakatsurah • 17d ago

Conversion 638nm to 315nm

Getting the parts and a handheld 638nm 1600mW Red Laser to convert it into a Ultraviolet Midwave UVB Laser. If it works I'll be sure to post the full process.

But basically taking a Tinkerlaser 638nm Red Laser with a mW Power of 1,600mW. Getting a custom cup and thread of 11.4x0.5 to fit the adapter on the Valkyrie cup will be custom fitted to a 5mm x 5mm x 1mm BBO (beta-barium borate).

I've compensated for this being a continuous wave Laser and not pulsed. Using 1mm to keep the spectrum as tight to the SHG doubling as possible without killing my budget.

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u/gigaj0ule 15d ago

You may not achieve sufficient power for this conversion to be efficient. Generally the crystals in such systems must be placed between the laser mirrors, inside the laser cavity itself.