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Do you still have it? It'd be good for reviving one of my old projectors

Forgot to say that its actually a diode laser, not argon.

There is a coherent 488-20 laser on my local auctioning site with mainboard, in working condition (at least the seller says so - I'll need a proof anyway). Is it a good deal?

Wow, thats a great piece of information. I have a question, though - arent 3w and 5w versions the same thing? Even their pump diode currents are so close - they may be using the same diode. How much power were you able to get from your unit?

It was a moderately-cheap chinese soldering station (not the cheapest one, average) with temperature regulation. Works well for my uses althought not nearly powerful enough to solder brass module directly to baseplate (tried that to improve cooling, far better than thermal paste and screws...

I fixed it. After many failed attempts I decided to do a nuclear-soldering-option (I was pissed off and I didnt care if I break it or not anymore). Surprisingly, it worked, and diode works well and still holds rated power (althought operating voltage rose a bit, maybe because my solder joints...

Okay, since the TEC problem is somewhat solved, I have another question - I have a CC psu for jenlas but it doesn't support modulation. Is there a schematic for a 'modulation dongle' I could insert between psu and the laser head that would enable me to modulate the laser via ttl or analog? I...

Hello I have several medium and big dpss lasers that I am going to use in my RGB projectors. Unfortunately there is a problem - I have no temperature controllers for TEC cells and when I looked up their prices I was shocked - they are ABSURDLY expensive and I am never going to pay almost as...

Safety interlock (key) may be turned off

Hello Red laser modules in my RGB projectors have beam correction (cylindrical lenses) - as you can see on the photo, more than half space of the lens is left unused. Since lenses like that are even more expensive than diodes, I was wondering if I could somehow cut them in two without breaking...

Hello Is anyone here (preferably in Europe) willing to reallign my 532nm 1W laser module for a moderate price? Component placing is completely busted (cause it was dismantled) and it doesn't lase (parts are totally fine though). It is a Z-fold type cavity so I gave up on doing it myself - I'm...

Well, hr should be sturdy enough to withstand such amount of power and OC for high power cw lasers is usually about 20% R so that would probably work fine. I hope rod wont self destruct if oc is a bit more reflective than it should

This is probably what I'd need but to construct one for my laser I'd have to know needed pressure and flow rate - no idea how to figure that out. By the way, I remember you from your high power arc lamp pumped laser collection - do you have some spare optics for high power yag laser (and maybe a...

Well, I've decided to buy a second one and use first one with 3 diode blocks (one has been irreversibly dismantled) for my future project, gonna start building power supplies now - I'd probably buy several telecom 48v high current supplies of the same type (present on my local auctions site) and...

Power test: I hope it was decomissioned just after this test and still has the same amount of hours :yh: There is a fair chance its true: note on bottom says "only for used condition" - decomissioning?

This should answer a few questions: First, diodes. They are standard bars on submounts, microchannel cooled. They have thin gold(?) strip as a negative contact Second: rod with flowtube goes in there. Cooling paths are all connected. Third: There are no mirrors in mounts at all, so...

Since you are much more experienced, maybe you could answer my question (about this particular build) - with a YAG laser of this power Q-Switch is necessary or it would work properly if I attached right mirrors? And at this power mirrors should be water-cooled and thick, right? I could get...

Yea, I am only looking at it (and reflection, scattered or not) through my phone camera

In order to test these diodes fully I need to supply at least 10A. Since I dont have regulated power supply strong enough for that, can I just use 3,3V line from ATX PC PSU? Or is it too 'dirty' (spikes, transients) and will kill the diode? EDIT: Nope, doesnt work. When I try to power up with...

Yes, it looked almost exactly like this. You can bid with confidence. I paid 100$ for it tho Anyway, probably gonna dismantle this one for diode bars, buy next one and try to power it up as a whole. Would probably need Q-switch for it tho, no internal mirrors Also there are 4 42v 50A modules...