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I'm not even saying it is a high quality laser, I'm just saying its probably better than a diode in an aixiz module. It probably has a couple lenses to give it a good beam diameter, etc. I dont think $5 for batteries is too crazy... batteries at the store are like $3-5 or more, not to mention...

Every viasho hand held laser or RPL that I have seen does not have an IR filter, per se. That being said, the cavity and optics are designed such that no stray IR really has any way out. With blue you are dealing with quite a bit more pump power, so it is possble for a tiny bit to escape even...

Also keep in mind that the last time I inquired, Viasho's strongest portable blue laser was rated at 30mW, their website lists the strongest as 20mW. So really, anything over 30mW is well above specifications. You can contact them directly and give them the serial number to find out what the...

If you feel daring, open up the top of the laser and loosen the four screws at the bottom. This loosens the entire cavity. Make note of the orientation over the diode. I would use a marker and draw a line so you know *about* where it needs to go back to. Adjust the cavity over the pump diode...

So coherent is a bunch of scammers because their 405nm 10mW "cube" lasers are like 5-10 grand?? There is absolutely NO comparison between a professional laser and a hobby laser. Like phil said, even the optics in professional lasers are worth hundreds if not thousands of dollars. Also there...

if it does have external mirrors, give the brewster stems a good cleaning with methanol and optics tissue (only use optics tissue... buy some if you dont have any. anything else might scratch and will leave residue and kill power). Also, clean the mirrors themselves using the same materials...

I've had three or four heads that would lase on the start pulse but couldn't quite strike an arc. They just needed a little help to maintain. Since it is lasing, we know that the correct voltage and amperage is present at the anode, it just isn't getting quite enough to maintain the arc. For...

an oudin coil will really be the easiest way. Or any sort of hv supply will work. You can try zapping the anode end with a hene psu if you have one, just don't get too close. Also measure the tube volts before the clicking starts. It should be close to 150vdc when measured between either leg of...

I dont see a problem with the price... Try buying a 5mW 405nm laser from coherent or CNI or anywhere else.

lol 3 months after the last post... has it been stuck with zom-b this whole time? :thinking:

A diode system for this application is probably the WORST idea. No offense or anything, Blue, but a diode would suck for this. He's talking about a cotton-like material, probably white, you would need RIDICULOUS amounts of power to cut through white fluffy fabric with any sort of speed. At...

Many materials that are fluorescent will also lase. The problem is that they also need to be optically clear for lasing to happen. Most fluorescent dyes will lase if they are in a solvent solution and dont have any additives which will hinder lasing. every solid state laser works on this...

I'm half tempted to build you an 8x laser just to trade :evil:

Here are the pics I promised! Optics (note the small chip on the HR, again, on the uncoated side thus not effecting the functionality of the mirror): Here's the rod. There's absolutely no burns, no marks of any kind, the rod has never been used and I do still have the original case...

You (and by "you" I mean all you folks asking why more than one PBS wont work) really need to read up on what polarization is and then you will understand why using more than one PBS wont work

I dont understand how the optics can stay clean inside of a combustion chamber :confused: very cool though. Probably the best thread I've ever seen you start, Wes :beer:

You forgot to return the calls in your phone's inbox :na:

I want this sooooo bad... I'll send you a PM soon Yobresal... maybe we can work something out :beer::beer:

****PRICE DROP.... GO TO LAST POST**** Hi everyone, I'm selling my Nd:YAG rod along with optics meant for high power 532nm. The rod is 1.1% doped, so it could be used CW with good cooling or pulsed. It's AR/AR 1064nm coated. I believe it's about 3mm x 55mm long. One can make some...

I'm in marysville :D