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This is a flashlight. Might be great for a laser cutter however.

That could be a human too! Scary

I look forward to when visible fiber lasers are available. There is no technical reason they aren’t already available now. Even a short fiber of few feet could easily give 50w with a good beam. I tried to order some fiber from France and they just won’t sell it to me. I wanted to make a...

This looked interesting. https://endurancelasers.com/laser-diode-focusing/

Paul there likely are opamp circuits in the circuit for who knows what. Many need a bipolar supply. If the tec for example has a comparator made of opamps it might need it. Same with current control. Most times you just add a chip to flip the script for you and generate the negtive voltage...

Exactly. You can get a kw laser but powering it is the issue. You can certainly pulse it on battery that is carryable but not cw for any length of time. If it was even 10% efficient you’d need to dissipate. 9kw of heat. AND getting any battery to supply 110a on demand is hard. So even if...

well I guess it was a lot bigger than I remember. I loved that place. The chem lum exhibit, the silence room, the hall of voices. It was truly amazing as a kid. funny to think 100W is a handheld tube now and considered mid sized. Guess it was the magnet rings that caused the memory on this...

That looks like the laser I saw at the Toronto science center that melted brick to lava and set off my love of lasers. I was likely under 8 years old.

I always wanted to try that but could not make myself pull the trigger on the crystal. i noticed you can buy the crystal on eBay now for around 600.00

Last I looked if your lucky 5k for an old used opsl. 20-40k new. all I want is 100mw of 577nm that modulates clean for graphics. And…to mix with 445nm for the ultimate white laser. mine was neither. It was a different company. They sold for 30.00. Thinking so,etching similar to OptLasers...

How much is the module going for? I had one but it passed away.

EL wire. Forget the lasers. Led string that lights up as it moves away from ship.

Aka the skin cancer stick😱 nice build. Have you tried to pump a dye with it? A quick look shows tons of dyes that will excite in that range. Think I even saw a highlighter extract in ethanol. Just way too expensive for my tastes but a really cool build. I remember the first time I saw a...

Any chance for the ability to use one menu on three drivers for rgb?

Once the price comes down to 100-200 I might consider it. Just too expensive.

How much do they cost? Bad typing.

Where did you get the crystal. Pr:YLF I have been meaning to mess with this for along time and I finally have time. https://www.sci-projects.org/blog/diode-pumped-prylf-laser-emitting-at-640-604-and-523nm looks like a good article

I wonder if a grating might work. There were a bunch of hene mirrors of all kind on eBay few months back. Might see if they are still there try the grating. I have not seen a tuneable Pr. Not like continuous but between colors. Works for gas lasers like argon.

Any show laser dac combination should do this for you. There is a standard called the ilda connector

Buy a dac and proper software or you’ll be making nothing more than squiggle lines for life.