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I decided to test all my hene tubes today, I thought I had at least 40 of them, but there were only 33 in the box. Out of the 33, 8 of them were bad.

I was just wondering if anyone might know what the pins are for on one of these power sensors, I looked inside it, and it appears that it needs a + and - power source, but I dont know what else it needs to be used. Anyone know anything about one of these? It came from a dermaK medical laser...

I'm just curious as to why there is almost no information about masers on the web, it would be interesting to actually build one. For those of you that dont know, a maser is like a laser, but instead of light, it is a microwave amplification device. Microwave Amplification by Stimulated Emission...

I just acquired an awesomely large ruby rod to build a very powerfull laser with. Now I just need to find mirrors for it.

First, Awesome! A gas laser section! Now for the question: This is my second co2 laser  :D , it appears to be water cooled, but a friend of mine said that it is probably flowing co2 gas  :( , in wich case it would not be water cooled as there are only 2 hoses on the tube. Does anyone know for...

I ordered one of these from ebay on the 28th of june: http://cgi.ebay.com/50mw-tunable-532nm-with-AC-90-240VAC-power-supply-laser_W0QQitemZ360066475180QQihZ023QQcategoryZ53141QQssPageNameZWDVWQQrdZ1QQcmdZViewItem When I got it it was set at the minimum level. I adjusted the pot and got an...

I just finished a new 1 watt laser, I built with a diode from snoctony on ebay, this diode is a to-5 in a meredith module. It is powered by a ddl circuit using an lm317 and about 1.25 ohms of resistance. The current into the diode is about 980ma's, and it is outputting 1139mw's! I was hopeing...

If you used a laser, and reflect a beam off of a window pane, you should be able to pick up sound from the beam, and if you did it right, you could use interference to create an extremely sensitive listening device! I would think the higher the frequency of the laser the more sensitive this...

Has anyone played with building an interferometer with thier laser? :-? Max

I was just wondering what current everyone is running these "phazor" diodes at? I built a very nice laser with one, and am getting 296mw at 398ma!!  :D Max

I have been playing with a 20 watt diode array I recently got.  Since my 17 watt died, I wasnt sure of my power supply, and I dont have the money to get a storage scope yet, so I took my kodak digital camera and set the shutter to 3 seconds, aimed it at my old 60mhz oscope and hooked up the...

I got a 3watt fiber coupled laser diode from ebay a couple months ago and decided to see what it would do, I removed the fiber, and drilled out the hole bigger, its still not getting all the power out I think it should, but it is definately colimated a lot better than the last fiber laser I...

Here are some pics I took with the camera I got from yobresal. the green is a 150mw lanlingtech lab laser, and the red is a 100mw 16x GB diode running at 160ma. Max

Well, I built my first blu-ray 405nm laser :D, and it works very well... using ddls circuit at 32ma's, off 8aa nimh cells. Also, I should add that Ddl did the hard part by extracting these diodes, and soldering wires to them, then putting them in aixiz modules for me, I really appreciate that...

Heres my 2 watt 808nm laser before dark outside hitting the trees about 150 feet away. this was made with a modified cvs camera. you can see the entire beam all the way to the trees, I think this is very pretty, and you cant see it with your eyes. (except for a dull red glow.) Max

Just wanted to show how bad a beam Ive ended up with from this 17 watt diode, when its focused, it is really awesome though. There is another lens inside the laser case that you cant see. Max

Well, I have come to the conclusion that this laser is just a T.U.R.D.  ;D...  "Totaly Un-collimatable Really Divergent", and there is no way to collimate this thing! does anyone have any ideas on how I might get this thing collimated decently? I have tried quite a few lens's, an I am useing a...

I have almost got my 17watt laser done. I still need to work on the collimation with different lens's... anyway, almost everything I put in the beam bursts into flames! Max

I smell something burning... this is the way to burn a disk! just not quite enough to saw it in half. :D vid is divx Max

Man this thing is powerfull... *max current into this diode is 2.8 amps, this is running at 2.05 amps. this was a 1 watt laser, that I have upgraded the diode to the 2 watt version. *Ill have to make more changes to get any more current to it. black stuff pours smoke immediatly when hit with...