Recent content by CoryG

So I found a source for a 200W CW 808nm laser diode stack at a reasonable price ($1,200). I've got some questions: Does anyone have thoughts on how to focus it down for a DMLS application? I've looked at fiber coupling vs side-pumped lasers a bit, side pumped seems much simpler - any idea...

Probably just a generic PDF with data changed around - but definitely not ordering from them. Apparently the "$530/PCS" bit that had me confused actually meant to say "$530/PC" in the original and 2 subsequent emails. Can definitely find cheaper, even if I have to hand-solder some SMT LEDs.

An update on this - I inquired about the rating and was told the PDF had a typo - I attached the new one they sent me. They quoted me $530 for 10 pieces or for a single piece if I order 10 (waiting on clarification before deciding whether or not I want to place the order).

If that's the case I may need to keep looking. I'm using Yttrium-doped fiber as the lasing medium so 30nm pretty much fits the curve, though I would like to get closer to 15nm. I'm looking at some pigtailed GRIN lenses as the input aperture for the fiber - do you know a good method for loosely...

It's an array of LEDs in a single package - it is not a laser diode but it is a diode I can use as a pump. You don't need laser diodes to pump a laser with. It has 100 elements rated at 1000mA for the pulse forward current.

Thanks, that is what I had suspected but wanted some degree of confirmation before attempting it and possibly burning out some expensive diodes. I attached a PDF of the part I'm going to be using (couldn't find a link to it online anywhere) - if anyone is interested I'll send you the contact...

I'm looking at getting some of the diodes rated at 100W - would it be safe to underpower these (same input voltage, low current) as a means to control the output intensity? I'm going to use them as pumps for a fiber laser and though it will be rated at 400W I would like to have better variation...

CO2 Lasers are much larger than fiber lasers (with power supply, pump diodes and heat sinks you can fit a 200W fiber laser into something the size of a small oscilloscope - the laser itself is just a coil of fiber optic cable). Fiber lasers also live longer. If I can find someone with a fusion...

I was under the impression that the practical limitation of a single fiber resonator was around 1MW, after which the dopants inside the fiber cause the photons' wave functions to propagate outside of the fiber. For my application I only need around 200W (building a 3D printer that will handle...

I've been looking into building a fiber laser and am wondering if anyone has any knowledge of how much loss to expect if you were to splice fiber optic resonator cables (something akin to one of these) together to produce a Y-shape. I know I wouldn't be able to utilize double clad or polarized...