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Nothing lasts forever, so obviously laser diodes are no exception. Simply applying voltage and passing current through any semiconductor causes "wear and tear" on the structure of the device. If you want to see a laser diode last for 10x it's rated lifetime, then you could reduce the current...

That is true, can't argue with it... but still I see some seriously cold-hearted laziness these days. Seems like way too often people look the other way or pretend not to notice some f*cked up sh*t just because they don't want to make an effort. Sooner or later, IMO, there's going to be a whole...

Oh, you guys didn't get the memo? Big brother is more important than ethics or personal privacy.. just FYI. If it suits the gov't that every American should be stripped of their privacy and individual rights, that's what'll happen.. and I think it is happening. My only question (and no doubt...

Based on the glass cockpit and associated avionics I'd say it wasn't cheap.... at all.

Probably not an easy project, and amazing as far as I'm concerned: Man Builds Flight Simulator in Garage | Military.com

Quite possible, however it's my opinion that the burned windows you've seen and heard about were caused by dirt on the glass. It doesn't seem to me that it has happened often enough to be a common trait of 1W+ blue diodes with windows. Dirt can cause problems because depending on the composition...

Since I was a bit vague, when I said before that my A140 diodes lasted over a year in projectors, I meant that they lasted until I upgraded. The diodes are still perfectly good, making full power. No measured degradation from new as of the time that I pulled them.

No. 1 cause of degradation is too much current or transient voltages. Can these be prevented? Yes, but only by running at lower current and eliminating the possibility of transient voltages. Most quality drivers make transient voltage damage nearly (but not entirely) impossible, but with...

1.8A is a good bit above what I was running A140s at when I was using them in my projectors, and mine lasted over a year with lots of weekend usage. In fact, one of them is still going strong at 1A to this day. My first guess as to the reason for degradation would be too much current, which you...

I'd say 5km would be suitable for accurate triangulation. Agreed.. if only the cloud cover in the video wasn't there..

@ 1:00 in this video starts a portion where a laser is used that could easily be used for triangulating from a distance to verify the planetary boundary theory.. I can't understand a word the people are saying though. If only I had one to use lol. Von Osnabrück in die Stratosphäre | NDR.de -...

lol.. in some sort of wet dream maybe..

Lol.. 40-60W is impressive, I meant compared to 350W. This system would eat a Laserscope for lunch. It would eat any visible laser that I've ever seen or heard about for lunch and since it's green, which is near the peak of human vision sensitivity, I'm sure it's positively blinding up close and...

piece of sh*t

That's the most green I've ever seen or heard about.. 350W is ridiculous. I can only imagine what that looks like. @Soren: The Laserscope cavity in that diagram is only good for up to 40-60W of 532nm. It is a pulsed system, so the peak power is FAR higher, but so is the system in the OP here...

Well, it sounds to me like you've got more knowledge pertaining to the atomic level than many of the people here. What you say makes sense to me, but whether it's truly accurate or not I can't say for sure at this time. I'll see what I can dig up in terms of papers etc, and in the meantime maybe...

There's a member here that goes by pullbangdead.. his education directly involves GaN technology.. if there is someone here who can answer it's him. I haven't seen him on here in awhile, but if you were to shoot him a PM he might respond since it often sends out an email to alert the user when...

Looking good Brooks! I've got a pair of 5W RGB systems about 80% done.. your pics are making me beyond anxious to see them done. I should be getting the last machine work done in the next month or so.. I work pretty slow since I've been so busy lately between work, family etc. but soon....

Through modern technology advances I can do both! I was just reading about that earlier.. this story has a nice list of links at the end: Has the Higgs boson been found? Signs point to ... almost - Cosmic Log

Nice review! It's interesting that you see this effect on your camera.. With many if not all 473nm lasers (and probably other wavelengths that use LBO) the power fluctuates at a relatively high frequency, so high that you don't really see it unless you use at the very least a photodiode and...