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Use an arc lamp and an active q-switch. Then you can run it CW or Q-switched. Metal welding will require a huge power system and cooling system. Most multi-kW YAG systems run on commercial 480VAC 3-phase.

Re: GB Feeler oemlasersystems goggles We have larger discounts for larger volumes. The last group buy was over 30 pair. The discount was 25% and we shipped all of them to the group buy organizer for free. The shipping for the individual orders were handled by the group buy organizer. If you did...

I love YAGs. I've had many in my personal inventory. My last big one was a Lasermetrics 9550. It was fun. Don't get my wrong, I like a visible beam as much as the next guy but it's hard not to appreciate the raw power of a huge pulsed IR system. Punching a hole through a steel razor blade is the...

LoL, this thread explains the request for quotation my company received today. I didn't know anyone made laser gloves.

Those glass are not laser certified. They are IPL (Intense Pulsed Light).

The myth was that stone cannonballs can fell a stone castle wall. My guess is they ramped up the powder charge when they found the stone balls just were not doing the job adding to the acceleration portion of F=ma to increase the force and missed the wall.

21CFR1040.11 (b) Surveying, Leveling, Alignment (SLA) laser systems cannot exceed 5mW CFR - Code of Federal Regulations Title 21

Here's a yellow (593.5nm) burning through a focusing doublet. Stabilized at 196mW. It will burn without the lens but it was much faster focused and the beam looked like a needle. vR1Tl7SM4J4

Started out in the military. Pay sucked but loved every minute I served. I got to blow up a lot of stuff. I then became a switching engineer and built class 5 telephone switching centers and commercial data centers. I was certified on the Nortel DMS250 and DMS500 for telephone and cisco network...

No, it's still a 15mW laser.

Turning the laser on and off is called modulation of a laser and must take into account the highest output the laser may be expected to reach. It is still calculated as a CW laser. Modulation only releases the maximum loss the output coupler is designed to release, leaving the rest of the energy...

H5N1 will move to human populations eventually. There is really no getting around it. As with all influenza viruses it is a negative-sense ssRNA virus. The single stranded RNA mutates very easily because there is no complimentary sequence to stabilize the genetic information. If it had a double...

This is why pulsed lasers are not measured in watts. What is the equivalent power if that energy is not over 1 second but over 80ns (pulse duration)? You will see why it will punch a hole in thin steel. Your solution should have a kW after it.

Pulsed lasers are not measured in watts. The watt really has no meaning in that context because it does not pulse over a full second. The Joule is the measure of energy used for pulsed lasers. Pulsed lasers are incredibly energetic. The q-switch allows the cavity energy to build to maximum and...

I went over this on another thread: "Well the debate can continue until the cows come home but once the FDA announces all portable/pointer lasers fall under 21 CFR 1040.11(b) anything more powerful than 5mW will be outright banned regardless of safety features. Previously you could import a...

CO2 would be best for organics

There are certain costs associated with running a business. Everyone is familiar with the common business costs. There are other costs that must be factored in when working with safety equipment. For laser protective eyewear there are the initial costs of dye development by someone like sdistin...

You don't search a hobby site for legal advice. You go to the applicable laws. Anyone who sells any manufactured laser without a product report is in violation of FDA regulations regardless of the output power or wavelength, period. Look up 21 CFR 1040. If you buy any laser from say a Chinese...

The first laser I built was the pinnacle and was for a science fair project. It was a ruby laser way back when I was 12 (1978-79). I don't even own any pointers. I have a couple of lab systems sitting in boxes and a few argons also sitting in boxes. I have a huge YAG parts collection because I...

The common milspec ratings apply to construction and operational requirements. For example MIL STD 810 defines procedures for testing military equipment in the expected environment the equipment will operate within. Anyone building any equipment for the military will become intimately familiar...